Petition — Globe Linings, Inc. v. City of Corvallis
Supreme Court brief1977
Ask Donna
What actually matters in this document.
Text
Supreme Court, U.
FILED
OCT 13 1977
MICHAEL RODAK, JR., CLERK
In The
Supreme Court of the
United States
October Term, 1978
N. 37-554
GLOBE LININGS, INC., HOWARD D. WEBB
and ARTHUR M. LOCKHART,
U.
CITY OF CORVALLIS,
Petitioners,
Respondent-Defendant and
Third-Party Plaintiff-Appellee,
v.
S & T CONSTRUCTION COMPANY, INC.,
Respondent-Third-Party Defendant and
Fourth-Party Plaintiff-Appellee,
Uv.
FIRESTONE TIRE AND RUBBER CO.,
Respondent-Fourth-Party Defendant-Appellee.
PETiTION FOR WRIT OF CERTIORARI TO THE
UNITED STATES COURT OF APPEALS
FOR THE NINTH CIRCUIT
FRANCIS A. UTECHT
Suite 910 Fidelity Federal Plaza
555 East Ocean Boulevard
Long Beach, California 90802
Attorney for Petitioners
TOPICAL INDEX
GP UME a ccbvcccdccenesses eeececvesessececes
IE A Wan 5:60:06 0sctdncnenaneucedansiersdamnsese
QUESTIONS PRESENTED ...............cseeeeeeevees
CONSTITUTIONAL AND STATUTORY PROVISIONS
AND RULES INVOLVED ..................006..
SURES HE BEE SEMEED 6 06 o cdccresevcccsccecssces
REASONS FOR GRANTING THE WRIT ................
A. Petitioners have been deprived of their prop-
erty (the patent in suit) without due process of
law in violation of the Fifth Amendment by the
failure of the Ninth Circuit Court of Appeals to
interpret 35 U.S.C. 103 in accordance with the
directions set forth by this Court ...............
B. The conduct of the Appellate Court calls for an
exercise of this Court’s power of supervision to
prevent a grave miscarriage of justice not only
in this case, but also in future patent cases ......
ENT oh eno 58.0bh 00006 eeesanseaeNsceaceteeeeanen
APPENDIX
1. Opinion of the District Court ...................
2. Opinion of the Ninth Circuit Court of Appeals ...
3. Order of the Appeals Court denying petitioners’
PN eT WII oo cn bcc sccccesccasacecedss
4. Allen U.S. Patent No. 2,497,850 ................
5. Feild U.S. Patent No. 2,461,537 ........cccccees
6. Dial et al Patent No. 3,313,443 .................
Page
16
17
TABLE OF AUTHORITIES CITED
Cases
Page
Anderson '’s-Black Rock v. Pavement Salvage Co.,
Aedes cdakadedes bene Goss buse ake 2, 10, 14
Blonder Tongue v. University Foundation,
RR ES ee ere 9
Cuno Engineering Corp. v. Automatic Devices Corp.,
ee oe eee ee ieeaekabasyeees 8,13
Graham v. John Deere Co.,
EE coe as cea ee umes seueadauenne 2, 4, 10,11
Grannis v. Ordean,
re oo cae Cee banabse eee eseres 9
Iowa State University Research v. Sperry Rand Corp.,
ee Sk rere 9
Kamei-Autokomfort et al v. Eurasian Automotive Products,
cde sheeee hhh 6dt0cs6e'acusabursnbecss keene 16
Regimbal v. Scymansky,
Ne a Se ot i cael poe e eae Re Keeeds 8
Sakraida v. Ag Pro,
DPM io ouch Guus uubetalesr des badanceys 06% 2, 10, 14
CONSTITUTIONAL PROVISIONS,
STATUTES AND RULES
U.S. Constitution, Fifth Amendment ...................4+- 2,9
U.S. Constitution, Article 1, Section B, Clause 8 ........ 11,17
BD BT. BIGED cc ccc cccavctvccsccncesedzscnvscevseescs 2
Fe Wr EE hocks Se vcsccccencs 2, 3, 6, 9, 10, 11, 13, 14, 16
CN NGS EEE EE RAL OLCOTT TET 9
IN THE
SUPREME COURT OF THE UNITED STATES
OCTOBER TERM, 1978
GLOBE LININGS, INC.,
HOWARD D. WEBB and
ARTHUR M. LOCKHART,
Petitioners,
U.
CITY OF CORVALLIS,
Respondent-Defendant and
Third-Party Plaintiff-Appellee,
U. No.
S & T CONSTRUCTION COMPANY,
INC.,
Respondent-Third-Party Defendant and
Fourth-Party Plaintiff-Appellee,
U.
FIRESTONE TIRE AND RUBBER
CO.,
Respondent-Fourth-Party
Defendant-Appellee.
PETITION FOR WRIT OF CERTIORARI TO THE
UNITED STATES COURT OF APPEALS FOR
THE NINTH CIRCUIT
Petitioners pray that a Writ of Certiorari issue to review
the Judgment of the United States Court of Appeals for
the Ninth Circuit entered on June 14, 1977, affirming the
Judgment of the United States District Court for the
onli
District of Oregon and the Order denying petitioners’
Petition for Rehearing entered August 4, 1977.
Opinions Below
The opinion of the District Court is reported unofficially
at 185 United States Patents Quarterly 807 and appears
at Appendix 1 herein. The opinion of the United States
Court of Appeals for the Ninth Circuit is reported
unofficially at 194 United States Patents Quarterly 415
and appears at Appendix 2 herein. The Order of the
Appeals Court denying petitioners’ Petition for Rehearing
appears at Appendix 3 herein.
Jurisdiction
The Judgment of the Court of Appeals was entered on
June 14, 1977, a timely decision for rehearing was denied
August 4, 1977, and this Petition for a Writ of Certiorari
was filed within 90 days of that date.
The jurisdiction of this court is invoked under 28 U.S.C.
§ 1254(1).
Questions Presented
1. Did the Court of Appeals deprive petitioners of their
property (the patent in suit) without due process of law in
violation of the Fifth Amendment by refusing to interpret
Section 103 of Title 35 of tae United States Code in
accordance with this Court’s direction set forth in Graham
v. Deere, Anderson’s-Black Rock v. Pavement Salvage Co.
and Sakraida v. Ag Pro.
_
2. Did the conduct of the Court of Appeals call for an
exercise of this court’s power of supervision to prevent a
grave miscarriage of justice, not only in this case but also in
future patent cases.
Constitutional and Statutory Provisions
and Rules Involved
This case involves the Due Process clause of the Fifth
Amendment of the Constitution of the United States and
Section 103 of Title 35 of the United States Code.
Statement of the Case
This is an action for infringement of Claim 5 of Dial
et al United States Letters Patent No. 3,313,433, filed
June 26, 1964, and issued April 15, 1967, for a “Floating
Cover For A Liquid Storage”’ (Appendix 6). The invention
was developed by plaintiff Globe Linings, Inc., a small
business located in Long Beach, California. The invention
consists of a floating cover for an open water reservoir to
prevent contamination of the stored water by deleterious
substances such as dirt, falling leaves, chemical sub-
stances in the air, bird and animal waste and refuse thrown
in by vandals. Although smaller water reservoirs can be
provided with fixed protective roofs, such a roof construc-
tion is too expensive for reservoirs of large surface area.
The patented invention solved the vexing problem of
removing rainwater from a flexible floating reservoir
cover.
This action arose when the defendant City of Corvallis,
Oregon, had an infringing cover constructed for its Baldy
—
Reservoir by defendant contractor S & T Construction
Co., Inc. The latter defendant utilized materials and
engineering provided by defendant Firestone Tire and
Rubber Co.
For the purpose of this Writ, it is important to note that
the invention of the patent in suit had no trouble meeting
the ‘“‘secondary considerations” referred to in this Court’s
direction in Graham v. John Deere Co., 383 U.S. 1, at 35-
36. Undoubtedly, the most striking evidence in this regard
was the failure of the U.S. Army and large manufacturers
(including the defendant Firestone herein) to solve the
problems inherent to a floating roof cover. Such failure
was well documented by a confidential Army Report which
detailed the unsuccessful attempts to solve such problems
from 1943 to the subsequent abandonment of the project
in approximately 1965. The Army Report summarized the
failure of the whole project as follows:
‘There does not appear to be a simple method of
handling water removal” (page 129); and “patterns
of rainwater accumulations on the surface of a
reservoir cannot be predicted or controlled with any
degree of certainty” (page 132). (Emphasis added)
Further evidence of nonobviousness was the skeptical
attitude those skilled in the reservoir art assumed towards
petitioners’ patented reservoir cover, the three-year
period required to develop such cover and the commercial
success achieved by the cover for the struggling plaintiff
Globe Linings, Inc. Yet another indication of nonob-
viousness was provided by the recognition by defendant
a
City of Corvallis that the patented cover of Globe Linings,
Inc. could solve the City’s contamination problems, such
recognition taking the form of an invitation to Globe
Linings to bid on the City’s reservoir cover. Unfortunately
for Globe Linings, defendants Firestone and S & T
Construction Company, Inc. made a lower bid. The lower
bid reflected the fact that neither of such defendants
needed to recoup the cost of developing and promoting the
infringing cover, but instead could merely copy plaintiffs’
patented cover.
There appears herebelow a copy of FIGS. 1 and 3 of the
patent in suit with the basic elements of Claim 5 at issue
thereof identified:
= weer eee
iad
crocs
tne ew
ee ed
tyr
wu
eos
we emer ps be ow oe
coors
ed
eee TT aie’ » fT |
FLOAT MEANS CONTINUOUS SHEET
RESERVOIR PERIPHERY RAINWATER COLLECTION SUMP
= a
RAINWATER COLLECTION
SUMP
CONTINUOUS SHEET FIG.3
\ FLOAT MEANS .
RESERVOIR PERIPHERY
Such asic elements of Claim 5 at issue are:
(1) a continuous, flexible relatively thin sheet
which completely overlies the stored liquid - this
provides an inexpensive cover for large surface
areas and one which is conformable to the reservoir
configuration;
(2) the side of the sheet being larger than the
reservoir periphery - this provides excess material
capable of forming depending folds; and
(3) “float means”’ on the sheet and supporting
the sheet such that (or “whereby’’) the unsup-
ported sheet portion “forms a depending rainwater
collection sump” outwardly of the supported sheet
portion.
After the trial at Portland, Oregon, the trial court held
Claim 5 of the patent in suit invalid and unenforceable for
obviousness under 35 U.S.C. 103 based solely upon the
three references set forth herebelow. The court did not
rule on the issue of infringement:
— oa
1. ‘The U.S. Army Report describing the aban-
doned experiments referred to hereinabove, such
report being dated December, 1965.
2. Allen U.S. Patent No. 2,497,850, issued
February 21, 1950, Appendix 4 (cited during the
prosecution of the patent in suit).
3. Feild U.S. Patent No. 2,461,537, issued
February 15, 1949, Appendix 5 (not cited).
In finding obviousness, the trial court particularly relied
upon the Army Report, since such report was directed to
the rainwater collection problem, while Allen merely
discloses a rigid floating cover for a petroleum storage
tank, and Feild merely discloses a floating cover for a
closed tank. The trial court also ruled that applicants’
claimed combination of old elements failed to “produce an
unusual or surprising result”’.
On appeal, petitioners pointed out that since the patent
in suit was filed June 26, 1964, and the Army Report was
not published until December, 1965, such report could not
possibly constitute prior art, and accordingly that it was
error for the trial court to utilize the Army Report in
holding the patent claim invalid for obviousness and in
evaluating whether or not plaintiffs’ invention produced
unusual or surprising results over the prior art.
In its opinion (Appendix 2) the Court of Appeals agreed
with petitioners that the Army Report could not be
considered prior art. Rather than remand the case to the
trial court, the Court of Appeals then proceeded to hold
=
the patent in suit invalid for obviousness on the basis of
solely the Allen patent or the Feild patent! Specifically,
the Court of Appeals held that:
(1) since both Allen and Feild utilized covers
having a peripheral sump wherein liquid could
gather, the applicants’ use of such a sump was not
patentable “‘because a change in use is not a
patentable quality unless it is patented as a
process’”’;
(2) the use of the trough together with the inner
floats which automatically diverted rainwater from
the main body of the roof into the sump involved
insufficient ingenuity and was “no more than that
to be expected of a mechanic skilled in the art”
citing Cuno Engineering Corp. v. Automatic Devices
Corp., 314 U.S. 84; and
(3) the claimed invention consists only of a
combination of ideas which produces results that
would be “expected by one of ordinary skill in the
art and hence the patent claim did not exceed the
sum of its parts in “an unusual or surprising way”
so as to meet the “rather severe test’ for the
patentability of a combination patent required by
the Ninth Circuit Court of Appeals in Regimbal v.
Scymansky, 444 F.2d 333 (1971).
The invalidity ruling of the patent in suit by the Ninth
Circuit Appellate Court has destroyed a valuable property
right of plaintiffs. In particular, plaintiffs’ competitors can
now sell copies of plaintiffs’ floating roof cover at a lower
==
price than plaintiffs, since plaintiffs’ competitors need not
amortize the cost of developing and promoting their
covers. With respect to a large competitor, such as
defendant Firestone, plaintiffs do not have a country-wide
marketing organization. Accordingly, plaintiffs cannot
possibly meet Firestone’s competition now that plaintiffs
have been deprived of their legal monopoly afforded by
the patent in suit.
Reasons for Granting the Writ
A. Petitioners have been deprived of their property
right (the patent in suit) without due process of
law in violation of the Fifth Amendment by the
failure of the Ninth Circuit Court of Appeals to
interpret 35 U.S.C. 103 in accordance with the
directions set forth by this Court.
Patents have the attributes of personal property: 35
U.S.C. §261. The patent owner has a vested property
right that can be cancelled, revoked or amended only by
judicial proceedings that afford due process of law: Jowa
State University Research v. Sperry Rand Corp., (C.A. 4,
1971), 444 F.2d 406, 409.
The fundamental requisite of due process of law is the
opportunity to be heard: Grannis v. Ordean, (1914), 234
U.S. 385, 394. Petitioners submit that due process
requires not only that judicial proceedings be held, but
that they provide the patent owner with a “fair opportunity
procedurally, substantively and evidencially to pursue his
claim”: Blonder Tongue v. University Foundation, (1971),
=
402 U.S. 313. A holding of patent invalidity, in effect,
destroys a patent owner’s property. It amounts to a taking
of his property. If the holding of invalidity is based upon
substantive interpretations of the applicable patent
statutes which so far depart from the standards set by this
Court that they do not offer a patent owner such a “‘fair
opportunity”, petitioners submit that the property, the
patent, is taken without due process of law. In this case,
petitioners were deprived of a fair opportunity substan-
tively to pursue their claim. The Ninth Circuit Court of
Appeals, rather than interpreting 35 U.S.C. 103 in
accordance with the direction set forth by this Court in
Graham v. Deere, 383 U.S. 1; Anderson’s-Black Rock v.
Pavement Salvage Co., 396 U.S. 57, and Sakraida v. Ag
Pro, 425 U.S. 273, applied its own standards of ob-
viousness in holding the patent in suit invalid. Addi-
tionally, the Appellate Court went off on a legal frolic of its
own in holding the claimed combination invalid because
one of the claim elements had been used for a different
purpose in the prior art.
It is true that the Appellate Court, as usual, paid lip-
service to Graham v. Deere, stating that the well-known
mode of analysis set forth herebelow should be followed:
“While the ultimate question of patent validity is
one of law . . . the §103 condition . . . lends
itself to several basic factual inquiries. Under
§ 103, the scope and content of the prior art are to
be determined; differences between the prior art
and the claims at issue are to be ascertained; and
the level of ordinary skill in the pertinent art
oe, ene ne
a a re et oe
—\
resolved. Against this background, the obvious-
ness or non-obviousness of the subject matter is
determined.”
After approving the above language, the Appellate
Court then ignored one of the most critical directions
thereof, i.e., a determination of “‘the level of ordinary skill
in the pertinent art”. A review of the Court’s opinion
(Appendix 2) reveals that the Court did not make any
attempt to evaluate the level of ordinary skill in the
reservoir art.
The failure of the Appellate Court to determine the level
of skill in the reservoir cover art made it quite impossible
for the Appellate Court to intelligently apply the re-
maining factual criteria of Graham v. Deere. This is true
since what may not have been obvious to one having a
lower than ordinary level of skill might be obvious to one
having a higher than ordinary level of skill.
In this case, it is clear that the Appellate Court did not
bother to determine the level of skill in the art for the
simple reason that such Court had no intention of applying
the statutory test for patentability set forth in 35 U.S.C.
103. Instead, the Court applied a hindsight test based
upon the Court’s “‘gut’’ reaction that the cover con-
struction of the patent in suit was so simple as to not be
entitled to the legal monopoly promised by Article 1,
Section 8, Clause 8 of the Constitution. Such hindsight
approach was demonstrated by the Appellate Court’s
dissection of the Feild and Allen patents and rearranging
the elements thereof to synthesize Claim 5 at issue.
=< =
In particular, the Appellate Court seized upon the
peripheral flexible sump of Feild and Allen as being usable
to collect and remove rainwater, even though the stated
purpose thereof was to act as a vapor seal. Based upon this
premise, the Appellate Court held that since such
peripheral sump was in the prior art, its use to collect
rainwater would not be patentable, holding:
“(A] patent claiming a device that has already
been put to use, albeit in a different manner, is
invalid; in order to be valid over the prior art, it
must claim not novel use, but novel conception.”’
Significantly, the Appellate Court did not base such
above contention upon any statutory provision. It will be
readily apparent that such holding completely ignored the
fact that the peripheral rainwater collection sump of the
patent is but a single element of Claim 5 at issue. If the logic
of such holding is adopted in future Ninth Circuit
decisions, Ninth Circuit Courts will feel free to invalidate
any patent claim combination merely because a single one
of the elements of such combination has been used for a
different purpose in the prior art. By way of example, a
patent claim which recited a combination of mechanical
elements such as a motor, gearing, pump and valves could
be held invalid merely because any one of such elements
had been utilized for a different purpose in the prior art.
Not content with holding Claim 5 invalid because one of
its elements was old, the Appellate Court also held that the
use of the peripheral sump, together with inner floats
which automatically diverted rainwater from the main
wittin
body of the roof into the sump involved ingenuity that was
“no more than that to be expected of a mechanic skilled in
the art’, citing Cuno Engineering Corp. v. Automatic
Devices Corp., supra. The Cuno case applied the “‘seat-of-
the-pants” subjective “flash of genius’ standard of
invention which prompted the provision in 35 U.S.C. 103
that “Patentability shall not be negatived by the manner in
which the invention was made’”’. That the Ninth Circuit
Court of Appeals still applies the “gut reaction” invention
standard of Cuno affords a clear indication that such
Circuit refuses to apply the objective factual approach
required by 35 U.S.C. 103.
Instead of applying its own subjective standard of
patentability, the Appellate Court in this case should have
looked at the clear evidence of non-obviousness provided
by the Army Report. As indicated hereinabove, such
report established the complete failure of those skilled in
the reservoir art to solve the problems of rainwater
collection in a flexible floating reservoir cover over several
years despite intensive efforts to effect such solution. The
Army Report established that a large number of skilled
persons with adequate means and facilities unsuccessfully
attempted over a long period of time to solve the rainwater
collection problem solved by plaintiffs. It seems im-
possible to conclude other than that the invention was
non-obvious. Yet this evidence was completely ignored by
the Appellate Court.
The Appellate Court also refused to look at the
“secondary considerations’, indicating non-obviousness,
“because a patentable invention is lacking’”’. It will be clear
ons Siiees
that if the Appellate Court had started its resolution of the
35 U.S.C. 103 test for obviousness by looking at the actual
floating reservoir cover prior art and the “secondary
considerations” of non-obviousness, the non-obviousness
of the patent in suit would have become apparent.
The coup de grace of invalidity was delivered by the
Appellate Court in concluding that the combination of
elements of Claim 5 did not exceed “‘the sum of its parts in
an unusual or surprising way’. In so holding, the Appellate
Court acted in direct conflict with the direction given by
this Court in a case where a patent claim is directed to a
combination of old elements. This Court does not require
that the elements of such a combination should “exceed
the sum of its parts in an unusual or surprising way’”’.
Instead, this Court has only required that such elements
provide a synergistic result.
In Anderson 's-Black Rock, this Court held:
“A combination of elements may result in an
effect greater than the sum of the several effects
taken separately. No such synergistic result is
argued here.”
And, in Sakraida v. Ag Pro, this Court held:
‘‘When a device consists of a mere aggregation of
segments of the prior art, there is an increased
danger that a patent will withdraw into its mono-
poly what is already known and add nothing to the
sum of useful knowledge. Thus, to be patentable, a
=- = ee ee ee
—
combination of elements must produce something
more than the sum of the pre-existing elements;
there must be a synergistic result that is itself non-
obvious.”
The Ninth Circuit Court of Appeals does not apply this
Court’s synergistic result test, but applies its own more
severe test for the validity of a combination patent, i.e.,
that the elements of the combination not only provide a
synergistic effect, but also that such synergistic effect
operates in an “unusual or surprising way ’. It is, of course,
difficult to find many combinations of old elements which
will even provide a synergistic effect, much less an unusual
or surprising synergistic effect. Had the Appellate Court
been satisfied to apply the synergistic effect requirement
of this Court, Claim 5 of the patent in suit would have
easily met such test. Thus, the construction and ar-
rangement of the patent’s floats to locate the excess cover
material at the reservoir periphery results in such excess
material automatically arranging itself into a rainwater
collection sump for easy rainwater removal despite
changes in the reservoir water level. The synergism results
from the fact that the floats do not merely support the
cover upon the water (as in the prior art) but additionally
the floats serve the secondary function of cooperating with
the cover to automatically define a level center section and
a peripheral rainwater collection sump that collects
rainwater from such center section. Likewise, the cover
does not merely function as a cover (as in the prior art).
Instead, because it is larger than the area of the reservoir,
its excess material cooperates with the floats to define the
aforementioned sump.
==
B. The conduct of the Appellate Court calls for an
exercise of this Court's power of supervision to
prevent a grave miscarriage of justice not only in
this case, but also in future patent cases.
As pointed out in detail hereinbefore, the Appellate
Court in this case refused to follow the directions of this
Court in determining the validity of the patent in suit,
namely, that 35 U.S.C. 103 be applied in determining non-
obviousness, and that the synergistic result test be applied
to a combination patent. The Ninth Circuit Court of
Appeals now routinely follows its own erroneous path in
testing a combination patent for obviousness. The most
recent example of which petitioners are aware is Kamei-
Autokomfort et al v. Eurasian Automotive Products, 553
F.2d 603. In Kamei, the Appellate Court, just as in this
case, applied the ‘“‘unusual or surprising result” non-
obvious test rather than this Court’s synergistic result
test. Kamei is before this Court by means ot a Petition For
Writ Of Certiorari filed July 29, 1977 under No. 77-168.
It will be clear that unless this Court provides the Ninth
Circuit Court of Appeals with supervision, it can only be
assumed that such Appellate Court will continue to apply
its own standards of patentability in future patent cases.
Such erroneous application of 35 U.S.C. 103 will naturally
enough be adopted by the trial courts. As a result, the
patent system will be effectively emasculated in the Ninth
Circuit so as to render such patent system incapable of
performing its Constitutional purpose: “To promote the
progressof . . . useful arts, by securing for limited times
to . . . inventors the exclusive right to their . . . dis-
= =
coveries’’, as guaranteed by Article 1, Section 8, Clause 8
of the Constitution.’’ Once potential patentees become
aware of such emasculation, the wells of invention will
quickly dry up. Moreover, small businesses (such as
plaintiff Globe Linings in this case) can no longer
effectively compete with large businesses (such as de-
fendant Firestone herein). Additionally, and more im-
portantly, the public will no longer receive the benefits of
research and development generated by the present
patent system.
Conclusion
For the reasons set forth hereinabove, this Petition for
Certiorari should be granted.
Respectfully submitted,
FRANCIS A. UTECHT
Suite 910 Fidelity Federal Plaza
555 East Ocean Boulevard
Long Beach, California 90802
(213) 432-0453
Counsel for Petitioners
APPENDIX
on tiens
APPENDIX 1
IN THE UNITED STATES DISTRICT COURT
FOR THE DISTRICT OF OREGON
GLOBE LININGS, INC and
HOWARD D. WEBB,
Plaintiffs,
v.
CITY OF CORVALLIS,
Defendant and Third-Party Plaintiff,
Vv
S & T CONSTRUCTION COMPANY, INC.,
Third-Party Defendant and
Fourth-Party Plaintiff,
v.
FIRESTONE TIRE AND RUBBER CO.,
Fourth-Party Defendant.
Civil No. 72-290
OPINION
Francis A. Utecht
910 Fidelity Federal Plaza
555 East Ocean Blvd.
Long Beach, California 90802
Joseph B. Sparkman
1000 Georgia-Pacific Bldg.
Portland, Oregon 97204
Attorneys for Plaintiff
iin
James Eickelberg
City Attorney
P.O. Box 486
Corvallis, Oregon 97330
Attorney for Defendant and
Third-Party Plaintiff
M. H. Hartwell, Jr.
1004 Standard Plaza
Portland, Oregon 97204
Attorney for Third-Party Defendant
and Fourth-Party Plaintiff
George L. Kirklin
800 Pacific Building
Portland, Oregon 97204
Attorney for Fourth Party Defendant
Burns, J.:
This is an action for alleged infringment of Claim
5 of United States Letters Patent No. 3,313,443, is-
sued April 11, 1967, for “FLOATING COVER FOR
A LIQUID STORAGE RESERVOIR.” The alleged
infringement arises by virtue of the construction by
or on behalf of the City of Corvallis, and the use of, a
floating roof cover for the City’s Baldy Reservoir.
A third-party complaint against the construction
contractor, a counter-claim by third-party defendant
alleging invalidity of the patent, and a fourth-party
complaint against the materials supplier have also
i en li A
mete a Dateline
oe et an aT ts Ct te Othe D Ba A ee tt Cli Ne Bald tthe Cae Bo nme MR Loe & 1 TORE Mn
Pe en ae eee eee ee een se
te lee nana a
De Whew ob Dee eS
been filed. The issues of patent validity and infringe-
ment have been segregated for separate trial; all
other issues among the parties are reserved for later
determination.
Jurisdiction is properly invoked under 28 U.S.C.
$1338, and venue lies in this district under 28 U.S.C.
§1400(b).
Claim 5 of the patent is as follows:
4
5. Apparatus for preventing contamination
of the stored liquid in an open reservoir, com-
prising: A continuous sheet of flexible, rela-
tively thin material impervious to and complete-
ly overlying said liquid in coextensive relation-
ship to the periphery of said reservoir, the size of
said sheet being greater than the area encom-
passed by the upper periphery of said reservoir;
anchor means securing the outer periphery of
said sheet to the upper periphery of said reser-
voir in fluid-tight relationship therewith;
and float means on said sheet spaced inwardly
from the upper periphery of said reservoir to
raise and lower said sheet on the surface of said
liquid as the level thereof varies, with said float
means supporting the area of said sheet engaged
by said float means at a higher elevation than
the portion of said sheet spaced outwardly of said
float means and inwardly of said anchor means
whereby said portion forms a depending rain-
water collection sump.”
— =
Because it would have been obvious to a person having
ordinary skill in the art, 35 U.S.C. 8103, the patent is
invalid and unenforceable. So concluding, I do not
consider the question of infringement.
Plaintiff is, of course, entitled to the statutory pre-
sumption of validity, 35 U.S.C. §282, that attaches
to the grant of the patent here in issue. My finding
of obviousness, however, is based on three prior art
references, two of which were not considered by the
Patent Office. ‘““Where the element of patentability
being considered is the obviousness of the subject
matter when weighed against the prior art, the pre-
sumption dissipates in the face of a showing that the
prior art was not brought to the attention of the ex-
aminers.” Hewlett-Packard Co. v. Tel-Design, Inc.,
460 F.2d 625 (9th Cir. 1972). The file wrapper in-
dicates that the patent to Feild, No. 2,461,537, and
the Hasty Bulk Fuel Storage Reservoir Report of the
U.S. Army Engineer Research and Development
Laboratories (“the Army report’”’) were not canvassed
by the examiners.
Discussion of obviousness must begin with the
standard set forth in Graham v. John Deere Co., 383
U.S. 1, 17 (1966).
Under 8103, the scope and content of the prior
1. Jeddeloh Brothers v. Coe Mfg., 375 F.2d 85 (9th Cir. 1967),
cert. denied 389 U.S. 823 (1967). and Volvo, Inc. v. Cummings,
& Sander, Inc., 435 F.2d 981 (9th Cir. 1971), indicate that I
need not determine the issue of infringement, having concluded
that the patent is invalid.
nel needa
_
art are to be determined; differences between the
prior art and the claims at issue are to be as-
certained; and the level of ordinary skill in the
pertinent art resolved. Against this background,
the obviousness or non-obviousness of the subject
matter is determined.
The patent to Allen, No. 2,497,850, teaches the use
of a partially flexible, floating cover with an amount
of flexible material that is larger than the surface
to be covered by it, in order to follow the rise and
fall of the fluid level. Allen also teaches use of an
anchor means to attach the flexible material to the
periphery of the tank. Finally, Allen teaches that a
peripheral anchor with flexible material connected
to a float over the liquid will create a peripheral
trough.
The patent to Feild, No. 2,461,537, also combines
the elements of a peripheral anchor for flexible ma-
terial and a float means. Specifically, the patent
teaches use of a flexible material of sufficiently large
size so that, when attached at its outer periphery to
the side wall, a dependent loop will be formed in the
material. Unlike Allen, which used a large solid float
to cover most of the surface and flexible material as
a link to the wall, Feild uses flexible material over
most of the surface with only a small central float.
One embodiment, Fig III, teaches the use of an an-
nular float, for this round tank, near the periphery,
thus confining the liquid on the upper/outer side of
the flexible material to a peripheral trough.
=
The Army report offers extensive pertinent teach-
ing. First, a flexible material was used to cover a
large rectangular reservoir. The material was larger
than the surface, to allow for rise and fall of the
liquid, and was anchored by a means that involved
wrapping the materiai around a peripheral pipe and
securing the pipe to the ground with sandbag weights.
Second, a float tube ran the length of the reservoir
at the center of the cover. Third, ballast tubes were
placed adjacent the periphery in order to form rain-
water accumulation troughs.
We turn now to the differences between these teach-
ings and the claim of plaintiff’s patent. Claim 5 refers
to a continuous sheet of flexible material over the
liquid, with an area greater than that of the reser-
voir. All three of the references discussed above show
a continuous sheet of material with an excess at the
periphery. Allen does use a solid central portion, but
Feild and the Army report show flexible material
forming all or substantially all of the cover. Whether
the reservoir is round, square or rectangular, has
vertical or sloping walls, covers volatile petroleum
products or water, is not determinative; claim 5 is
not limited in these respects.
Claim 5 does specify a cover for an open reservoir,
and only the Army report explicitly reveals an open
reservoir. Allen does not specify whether the tank is
covered; Feild indicates a rainshed. With respect to
the critical elements of Claim 5, the fact that Feild
and Allen have, or may have, fixed roofs is immaterial.
Pe
so ecenatianettiathante tatiana ie rene nin eh et i a ee ee ee a ee ee
a
—I25—
Both Allen and Feild disclose an anchor means se-
curing the outer edge of the sheet to the reservoir per-
iphery in fluid-tight relation. The connection in these
patents is not at the top of the tank, but in both
cases it appears that the operation of the flexible
cover would not be affected by shifting the connection
point upward. When either the Allen or Feild tank
is less than half full, it may be noted, the connection
point is then in effect at the top of a shorter tank and
the flexible cover forms a trough in the same way,
and in the same relationship to the fluid level, as the
contested patent. The Army report shows an anchor
means different in detail from plaintiff’s specifica-
tion, but fully described by Claim 5.
Claim 5 last describes float means on the cover,
spaced inwardly from the reservoir sides to raise and
lower the cover and — by keeping the center portion
of the cover higher than the outer portion — to form
a depending rainwater collection sump around the
edge. Feild and Allen both include a float means ar-
ranged with the flexible material to form a trough
around the edge, and Feild in the embodiment in
Figure III used floats near the periphery as well as
at the center, in a way very similar to that described
in plaintiff's patent. The Army also used a central
float, together with peripheral weights to place the
trough, which differs from the disputed patent’s
specification in that the float is a single tube down
the center rather than a network of floats. Claim 5,
however, makes no reference to the size of the float
means; in addition, the Feild float means is function-
ally very similar to plaintiff's.
=— =
Allen does not mention use of the trough to collect
rainwater, and Feild, of course, would not because it
is to be covered, but the Army report discusses rain-
water extensively. Because structure rather than use
is the patentable quality, Exer-Genie v. McDonald,
453 F.2d 132 (9th Cir. 1971), it is not determinative
that the fluid-filled dependent trough in Allen and
Feild was used as a sealing mechanism: its structure
was very similar to plaintiff’s even though the latter
was used for collecting rather than retaining fluid.
John Deere, supra, directs finally that I examine the
level of ordinary skill in the pertinent art. Having
reviewed carefully the testimony of the expert and
other witnesses, I find that an ordinarily skilled de-
signer or maker of reservoir covers would have been
aware of and understood the use of flexible materials
larger in size than the reservoir to be covered, the
use of float means to raise and lower the cover, the
use of anchor means at the periphery, and the use of
peripheral floats to control the positioning of the
cover material.
From this, I conclude that, taken as a whole, the
subject matter of the disputed patent would have been
obvious at the time the invention was made to a person
having ordinary skill in the art.
Plaintiff has suggested that, even if the elements
of his claim are individually old and obvious, the re-
—_— =
sults are synergistic and the invention, therefore,
nonobvious. In this area of combination patents we
are instructed to be strict. Jeddeloh Brothers v. Coe
Mfg., 375 F.2d 85 (9th Cir. 1967), cert, denied 389
U.S. 823 (1967); Burgess v. Klingensmith, 487 ¥.2d
321 (9th Cir. 1973). And in the Ninth Circuit, the
combination of old elements must produce an unusual
or surprising result. Hewlett-Packard, supra, Regim-
bal v. Scymansky, 444 F.2d 333 (9th Cir. 1971). No
such result was achieved here; that is, no result un-
usual or surprising in light of the prior art. Plaintiff's
cover floated up and down with the fluid level, but
so did all the three discussed. Plaintiff’s excess ma-
terial gathered in folds, but so did the Army’s. Plain-
tiff’s folds were located at the periphery, but so were
Allen’s and Feild’s. Plaintiff's peripheral folds
gathered rainwater, but so did the Army’s. The shuf-
fling of old elements here produced only the results
that prior experience with the elements had suggested.
That plaintiff’s shuffle was a better one may be true,
but that is not the test of patentability.
Although some evidence was introduced concerning
“such secondary considerations as commercial suc-
cess, long felt but unsolved needs, failure of others,
etc.,” John Deere, supra, I find that evidence not
persuasive, particularly in light of the small differ-
ences between prior art and the challenged patent.
In this evidence, I do not find the clarity of unsolved
problems plus failure of others that was a “weighty
indication that at the then level of skill . . ., the
patented discovery was not obvious.” Cool-Fin Elec-
tronics v. International Electronic Research Corpora-
tion, 491 F.2d 660, 663 (9th Cir. 1794).
The foregoing shall constitute findings of fact and
conclusions of law pursuant to F.R. Civil P. 52.
Dated this 10th day of April, 1975.
JAMES M. BURNS
APPENDIX 2
GLOBE LININGS, INC., Howard D.
Webb and Arthur M. Lockhart,
. Plaintiffs-Appellants,
v.
CITY OF CORVALLIS, Defendant and
Third-Party Plaintiff-Appellee,
Vv.
S & T CONSTRUCTION COMPANY,
INC., Third-Party Defendant and
Fourth-Party Plaintiff-Appellee,
v.
FIRESTONE TIRE AND RUBBER
CO., Fourth-Party
Defendant-Appellee.
No. 75-2848.
United States Court of Appeals,
Ninth Circuit.
June 14, 1977.
Owner of patent brought action for
infringement. The United States Dis-
trict Court for the District of Oregon,
James M. Burns, J., entered judgment
holding patent invalid and the patent
holder appealed. The Court of Appeals,
Eugene A. Wright, Circuit Judge, held
that (1) failure of examiner to consider
pertinent prior art dissipated statutory
presumption of validity, and (2) claim 5
of patent No. 3,313,443 relating to a
floating cover for liquid storage reser-
voirs was invalid because of obviousness.
Affirmed.
1. Patents @=32
Presumption of nonobviousness of
patent dissipates upon showing that pri-
or art was not brought to attention of
patent examiner. 35 U.S.C.A. § 282.
2. Patents <=32
Even one prior art reference not
considered by patent office may be suffi-
cient to overcome presumption of nonob-
viousness of patent. 35 U.S.C.A. § 282.
3. Patents 68
Army report discussing an experi-
mental effort could not be considered as
prior art since it was not public informa-
tion. 35 U.S.C.A. § 102(a).
4. Patents 68
Where army report on experimental
effort stated that each transmittal of the
document outside the agencies of United
States government must have prior ap-
proval of commanding general and that
recipient should destroy report when no
longer needed, it could not be said that
the report fell within the realm of “pub-
lic information” for purpose of determin-
ing whether it constituted prior art. 35
U.S.C.A. § 102(a).
See publication Words and Phrases
for other judicial constructions and
definitions.
5. Patents 58
If patent not considered by examin-
er was either less pertinent than the pri-
or art he did consider or was merely
cumulative, presumption of validity of
patent issue would operate. 35 U.S.C.A.
§§ 102, 282.
6. Patents 58
Since it was determined in patent
infringement action that a particular
patent which was not considered by ex-
aminer was more pertinent than the pat-
ent he did consider on issue of prior art,
failure of patent examiner to consider
the more pertinent patent dissipated
statutory presumption of validity of is-
sued patent and court started with a
clean slate in considering question of ob-
viousness in infringement action. 35
U.S.C.A. § 282.
Synopses, Syllabi and Key Number Classification
COPYRIGHT © 1977, by WEST PUBLISHING CO.
—30—
7. Patents 18
In considering question of obvious-
ness, court must inquire whether or not
claim of patent would have been obvious
to person of ordinary skill in the art
which requires determination of scope
and content of prior art, differences be-
tween prior art and claim in issue, and
level of ordinary skill in pertinent art.
8. Patents 18
Inventor will not be denied patent
simply because his invention embodies a
solution which seems simple and obvious
with benefit of hindsight; solution must
constitute a change in structure and not
a change in use.
9. Patents <>27(1)
Change in use is not patentable
quality unless patented as a _ process.
10. Patents <=328(2)
Claim 5 of patent No. 3,313,443, rei-
ating to a floating cover for liquid stor-
age reservoirs was invalid because of ob-
viousness in view of prior art. 35 US.
C.A. § 103.
11. Patents 16.7, 36.2(1)
Where patentable invention is lack-
ing, secondary consideration such as
*Senior Circuit Judge for the Second Circuit.
1. Claim 5 of the patent defines this portion of
the invention as follows:
“Apparatus for preventing contamination of
the stored liquid in an open reservoir, com-
prising:
a continuous sheet of flexible, relatively thin
material impervious to and completely
overlying said liquid in coextensive rela-
tionship to the periphery of said reservoir
the size of said sheet being greater than
the area encompassed by the upper pe-
riphery of said reservoir;
anchor means securing the outer periphery
of said sheet to the upper periphery of
said reservoir in fluid-tight relationship
therewith;
commercial success and long-felt but un-
fulfilled need cannot fill gap.
Appeal from the United States Dis-
trict Court for the District of Oregon.
Before LUMBARD,* WRIGHT and
ANDERSON, Circuit Judges.
OPINION
EUGENE A. WRIGHT, Circuit Judge:
Globe Linings, Inc. (Globe) is the own-
er of U.S. Patent No. 3,313,443 (the Dial
patent), which has as its subject matter
a floating cover for liquid storage reser-
voirs. This flexible cover protects stored
liquid from falling debris and sunlight.
It is also adapted, through the use of
floats, to rise and fall with the level of
the liquid. Because the cover is larger
than the reservoir, folds form adjacent
to the periphery. Rainwater is collected
in the peripheral folds and removed by
pump.
Under contract with the City of Cor-
vallis (Corvallis), the S & T Construction
Co. constructed a floating reservoir cover
for the city’s Baldy Reservoir. Globe
brought suit for infringement of claim
5' of its patent. Corvallis and other
defendants? contended that Globe's pat-
and float means on said sheet spaced in-
wardly from the upper periphery of said
reservoir to raise and lower said sheet on
the surface of said liquid as the level
thereof varies, with said float means sup-
porting the area of said sheet engaged by
said float means at a higher elevation than
the portion of said sheet spaced outwardly
of said float means and inwardly of said
anchor means whereby said portion forms
a depending rainwater collection sump.”
2. Impleaded as defendants were S & T Con-
struction Company and Firestone Tire and
Rubber Company, which supplied materials to
S & T. Because ali three defendants claimed
=— =
ent was invalid for obviousness under 35
U.S.C. § 103 (1970).2 The district court
segregated the issues of patent validity
and infringement for trial, found the
patent invalid for obviousness, and gave
judgment for defendants.
On appeal Globe contends that the dis-
trict court’s finding of obviousness is in-
correct. It argues that the statutory
presumption of the patent's validity
should not have been rejected. It also
contends that, even if its invention con-
tained no new elements, the combination
of old elements produced an unusual or
surprising result not found in the prior
art.
THE STATUTORY PRESUMPTION
The district court relied on three prior
art references, two of which were not
considered by the patent office. This
raises an initial question of whether ap-
pellant was entitled to the statutory pre-
sumption of validity. Congress has de-
clared that:
A patent shall be presumed valid.
The burden of establishing
invalidity of a patent or any claim
that the patent was invalid for obviousness we
will consider their claims together for pur-
poses of this appeal.
3. Recognized at least as early as 1851 in
Hotchkiss v. Greenwood, 11 How. 248, 52 U.S.
248, 13 L.Ed. 683 (1851), the nonobwiousness
requirement was codified in 1952 as Section
103 of the Patent Act:
“A patent may not be obtained though the
invention is not identically disclosed or de-
scribed as set forth in section 102 of this
title, if the differences between the subject
matter sought to be patented and the prior
art are such that the subject matter as a
thereof shall rest on the party assert-
ing such invalidity.
35 U.S.C. § 282 (Supp.1977).
[1,2] We have held that this “pre-
sumption of non-obviousness dissipates
upon a showing that the prior art was
not brought to the attention of the pat-
ent examiner.” Aleor Aviation, Ine. vy.
Radair Incorporated, 527 F.2d 113, 115
(9th Cir. 1975); see also Hewlett-Pack-
ard Co. v. Tel-Design, Inc., 460 F.2d 625
(9th Cir. 1972). Even one prior art ref-
erence not considered by the patent of-
fice may be sufficient to overcome the
presumption. Jaybee Mfg. Corp. v. Ajax
Hardware Corp., 287 F.2d 228, 229 (9th
Cir. 1961).
The Allen patent was among the 10
patents cited as references by the exam-
iner. Its elements included a partially
flexible, flat cover with an amount of
flexible material larger than the covered
surface level to follow the rise and fall
of the fluid level. An anchor attached
the flexible material to the periphery of
the tank in a fluid-tight relationship.
The patent also demonstrated that a pe-
ripheral anchor with flexible material
connected to a float over-the liquid will
create a peripheral trough.
whole would have been obvious at the time
the invention was made to a person having
ordinary skill in the art to which said sub-
ject matter pertains. Patentability shall not
be negatived by the manner in which the
invention was made.”
4. In its brief Globe contends that the cover
terminated inwardly of the periphery but the
district court found otherwise. Because we
find substantial evidence to support the court's
finding we treat it as a finding of fact which is
not clearly erroneous and adopt it. Fed.R.Civ.
Pro. 52(a).
Two possible prior art references not
considered by the examiner were a pat-
ent issued to an inventor, Feild, and an
Army report discussing an experimental
effort, begun in 1943 and terminated
around 1965, to devise a system for rap-
idly building reservoirs with covers.
[3] As to the Army report, we agree
with Globe that it cannot be considered
as prior art because it was not public
information as required by 35 USS.
§ 102(a) (1970).5 Although section 102(a)
merely defines prior art as an “invention
, known or used by others,” this
provision has been held to mean “only
what was known or used publicly or was
accessible to the public.” Union Carbide
Corp. v. Filtrol Corp., 170 USPQ 482, 518
(C.D.Cal.1971), aff'd in an unpub. memo.
179 UPSQ 209 (9th Cir. 1973). See also
Carboline Co. v. Mobil Oil Corp., 301
F.Supp. 141 (N.D.III.1969) (work product
under a “security” classification).
[4] Although the district court was
not called upon to decide whether the
Army report was public information we
note that the document itself contained
this language: ’
Each transmittal of this document out-
side the agencies of the U.S. Govern-
ment must have prior approval of the
Commanding General, U.S. Army Ma-
5. Section 102:
“A person shall be entitled to a patent
unless—
“(a) the invention was known or used by
others in this country before the
invention thereof by the applicant for [the]
patent -
6. We note that on pages 3-4 of its reply brief
appellant represents that this case appears in
Federal Supplement and Federal Reporter 2nd
Series. We find no such cases at the citations
given. Rather, we have found such disposi-
tions in U. S. Patent Quarterly. We note that
terial Command, Washington, D.C.
20315.
Destroy this report when no longer
needed.
Another section of the report listed the
agencies to which the report has been
distributed. After our examination of
the record, we cannot say that this re-
port falls within the realm of “public
information.”
[5] Because of our holding that the
Army report could not be considered as
prior art, we must decide whether the
Feild patent itself was sufficient to ne-
gate the presumption of non-obviousness.
The first question is whether the Feild
patent was either “less pertinent” than
the prior art considered by the examiner,
or was merely “cumulative.” In either
case, the presumption of validity would
then be allowed to operate. Saf-Gard
Products, Inc. v. Service Parts, Inc., 532
F.2d 1266, 1271 (9th Cir.), cert. denied,
429 U.S. 896, 97 S.Ct. 258, 50 L.Ed.2d 179
(1976).
Globe contends that the Feild patent is
less pertinent than the Allen patent be-
cause its design contemplates covering
the reservoir with a rigid roof, thereby
precluding the floating cover beneath
from being used to collect rain, unlike
the Allen and Dial patents, both of
the Court of Appeals’ ruling is an unpublished
memorandum decision of August 31, 1973.
We refer counsel to Ninth Circuit Rule 21(c)
which states that a “disposition which is not
for publication shall not be cited to
this Court in briefs or oral argument.” This
rule means what it says even when applied to
patent cases.
7. Plaintiff's Exhibit 43, “Development of a
Hasty Bulk Fuel Storage Reservoir,” U.S.
Army Engineer Research and Development
Laboratories, Fort Belvoir, Virginia, (Dec. 1965)
(first unnumbered page after the title page).
im Go” SLO” ae
=_ =
which are open to the rain. It notes
that its expert, a patent attorney, testi-
fied that the cited Allen patent was
more pertinent than the non-cited Feild
patent. The court, however, not the ex-
pert, determines which is more pertinent.
[6] In certain respects, the record re-
veals that the Feild patent was more
pertinent than the Allen patent. Specif-
ically we note that (1) unlike the Allen
patent but like the instant one the cover
of the Feild patent consisted almost en-
tirely of a flexible material, and (2)
again unlike the Allen patent but like
the instant one the float means in the
Feild patent consisted of floats near the
periphery of the cover as well as in the
center, thus confining the liquid on the
upper/outer side of the flexible material
to a peripheral trough. These features
were critical to both the Dial and Feild
patents. We therefore find the Feild
patent to be pertinent prior art and the
failure of the patent examiner to con-
sider it dissipates the statutory presump-
tion of validity.
With a clean slate, we consider the
question of obviousness.
Il.
OBVIOUSNESS
[7] In approaching this question, we
must inquire whether or not claim 5 of
the Dial patent would have been obvious
to a person of ordinary skill in the art.
This is the determinative test of patenta-
bility under section 103. Saf-Gard Prod-
ucts, Inc., supra at 1270. We have been
directed by the Supreme Court in Gra-
ham v. John Deere Co., 383 U.S. 1, 17, 86
S.Ct. 684, 694, 15 L.Ed.2d 545 (1966), to
adopt the following mode of analysis:
8. See footnote 1 in Exer-Genie, Inc. v. Mc-
Donald, 453 F.2d 132, 133 (9th Cir. 1971), cert.
While the ultimate question of patent
validity is one of law . . ._ the
§ 103 condition lends itself
to several basic factual inquiries. Un-
der § 108, the scope and content of the
prior art are to be determined; differ-
ences between the prior art and the
claims at issue are to be ascertained;
and the level of ordinary skill in the
pertinent art resolved. Against this
background, the obviousness or non-ob-
viousness of the subject matter is de-
termined.
“Prior art” then plays a fundamental
role in our examination of this case. See
Chisum, “Sources of Prior Art in Patent
Law,” 52 Wash.L.Rev. 1, 3 (1976).
[8,9] An inventor will not be denied
a patent simply because his invention
embodies a solution which seems simple
and obvious with the benefit of hind-
sight. Nationa! Sponge Cushion Co. v.
Rubber Corp., 286 F.2d 731, 735 (9th Cir.
1961), cert. denied, 368 U.S. 976, 82 S.Ct.
480, 7 L.Ed.2d 438 (1962). The solution
must constitute a change in structure,
however, not a change in use because a
change in use is not a patentable quality
unless it is patented as a process.’
[A] patent claiming a device that >
has already been put to use, albeit in a
different manner, is invalid; in order
to be valid over the prior art, it must
claim not novel use, but novel concep-
tion.
Beckman Instruments, Inc. v. Chemtron-
ies, Inc., 428 F.2d 55, 561 (5th Cir.), cert.
denied, 400 U.S. 956, 91 S.Ct. 353, 27
L.Ed.2d 264 (1970), quoted in Exer-Ge-
nie, Inc. v. McDonald, 453 F.2d 132, 134
(9th Cir. 1971), cert. denied, 405 U.S.
1075, 92 S.Ct. 1498, 31 L.Ed.2d 809
(1972).
denied, 405 US.
L.Ed.2d 809 (1972).
1075, 92 S.Ct. 1498, 31
=
{10} Both the Feild and Allen patents
include a float means arranged with a
flexible material to form a_ trough
around the edge and the Feild patent
uses floats near the periphery in a way
very similar to that described in the Dial
patent. The major elements of claim 5
of the Dial patent were (1) the continu-
ous sheet of material extending beyond
the area of stored liquid, (2) the use of a
float means to support the cover and
form a fold outwardly from the float
means, and (3) the use of a perimeter
sump to collect and remove rainwater.
The collection of rainwater in the periph-
eral sump was accomplished by the rais-
ing of the inner floats, thus causing the
rainwater to flow downward to the deep
peripheral fold or trough.
Because the main significant elements
of the Dial patent claim 5 were already
found in the prior art, the final inquiry
is whether the raising of the height of
the inside floats and the use of a pump
to drain the water from the trough were
obvious. We conclude that they were.
There was testimony by appellant's ex-
pert ® that the Allen patent arrangement
would collect rainwater, whether or not
that was its stated purpose. The use of
the trough to collect water was therefore
a change in use, not structure. The rais-
ing of the inner floats to create a run-
off was arguably a change in structure,
but the ingenuity required to effect the
adaptation was “no more than that to be
expected of a mechanic skilled in the
art.” Cuno Engineering Corp. v. Auto-
matic Devices Corp., 314 U.S. 84, 92, 62
S.Ct. 37, 41, 86 L.Ed. 58 (1941).
[11] Because a patentable invention
is lacking, secondary considerations such
as “commercial success” and “long-felt
but unfulfilled needs” cannot fill the
gap. Graham v. John Deere Co., 383
U.S. 1, 35-36, 86 S.Ct. 684, 15 L.Ed.2d
545 (1966); Great Atlantic & Pacific Tea
Co. v. Supermarket Equipment Corp.,
340 U.S. 147, 153, 71 S.Ct. 127, 95 L.Ed.
162 (1950).
III.
COMBINATION PATENT
Appellant suggests that the float ar-
rangement of the Dial patent to locate
the excess material at the periphery of
the reservoir was an unusual or surpris-
ing result not found in the prior art. It
also makes reference to the ability of the
float means to keep the cover from sink-
ing if punctured, and to the raising of
the inner floats. In so doing, appellant
attempts to persuade this court that its
invention satisfies the “rather severe
test” for patentability of a combination
patent. See Regimbal v. Scymansky, 444
F.2d 333, 338-39 (9th Cir. 1971). We
must therefore decide whether the
“whole” of this patent claim exceeds the
sum of its parts in an unusual or surpris-
ing way.
We hold that it does not, but rather
consists only of a combination of ideas
which produces results that would be
“expected by one of ordinary skill in the
art.” Hewlett-Packard Co. v. Tel-De-
sign, Inc., 460 F.2d at 629-30.
The judgment of the district court is
affirmed.
9. Reporter's Transcript at 303.
—35—
APPENDIX 3
IN THE UNITED STATES COURT OF APPEALS
FOR THE NINTH CIRCUIT
GLOBE LININGS, INC., HOWARD D. WEBB
and ARTHUR M. LOCKHART,
Plaintiffs-Appellants,
v.
CITY OF CORVALIS,
Defendant and Third-Party Plaintiff-Appellee,
v
S & T CONSTRUCTION COMPANY, INC.,
Third-Party Defendant and
Fourth-Party Plainiiff-Appellee,
v.
FIRESTONE TIRE AND RUBBER CO.,
Fourth-Party Defendant-Appellee.
No. 75-2848
Before: LUMBARD, WRIGHT and ANDERSON,
Circuit Judges.
The panel as constituted in the above case has voted to
deny the petition for rehearing. Judges Wright and
Anderson have voted to reject the suggestion for a
rehearing en banc.
The full court has been advised of the suggestion for an
en banc hearing, and no judge of the court has requested a
vote on it. Fed.R.App.P. 35 (b).
The petition for rehearing is denied and the suggestion
for a rehearing en banc is rejected.
APPENDIX 4
Feb. 21, 1950 J. W. ALLEN 2,497,850
SEAL FOR FLOATING ROOF TANKS
Filed Aug. 6, 1945 2 Sheets-Sheet 1
Ge
4 L20C7200"
Sohn 00 4b Mere
Sy Cfao a hdlét term ae
os porrag Sg preyllpo
Se
A Be mee 2 wt me
APPENDIX 5
Feb. 15, 1949. A. S. FEILD
FLOATING ®O0F STORAGE TANK
Filed Oct. 10, 1944
2,461,537
2 Sheets-Sheet 1
loventor: Alexander S Feild
By his Attorney:
aiiine
APPENDIX 6
H.S DIAL ETAL
April 11, 1967
3,313,443
FLOATING COVER FOR A LIQUID STORAGE RESERVOIR
Filed June 26, 1964
3 Sheets-Sheet 1
ATTORNEYS
err
= ™=
April 11, 1967 H. S. DIAL ETAL 3,313,443
PLOATING COVER FOR A LIQUID STORAGE RESERVOIR
Filed June 26, 1964 3 Sheets-Sheet <
lel
AZ
a2
gh ia
it 4
Jd 4 dg
oe iy 4) 1?
J
hr
wii (AM 8. KAS
BY Fihharathen , itoer, Galion,
a Lake
ATTORNEYS
—
April 11, 1967
H. S. DIAL
ETAL 3,313,443
FLOATING COVER FOR A LIQUID STORAGE RESERVOIR
Filei June 26, 1964
3 Sheets-Sheet 3
l2<++ ee a
s Fi Ss el A —~- ~> x
as _—-. ‘ _— |
7, ;- . > > -
; + lZ- —— ( oa | + 4- -- ry 4
; 5 a if
7d 4
4 >
i wl
| Peak
; oe oe 7 sé “<6 oe wo”
| : f é 4 t ‘a
u .
4
oo - 70 40 10 J
+ i ' ’
: -] 7
J 4
4--- . 4-- .7
_.+ 78 4 }
od 4
4
16 4¢-<cb) oe
“
> | a 3 ’ - -~-, ‘ -_7- + ‘ ~-
/ Ll. J
4 ae « ‘- } .
aoa ’ . . . 4 ‘ *,i 8 Le . . "1? ‘ . +
ro
en 4 4 a
} ’ g - + <
oe file § S, 4A
~ Ts 4
" ‘ f
w. \« (ng aay AE
QA SONS <p
s
INV EN TORS.
ROWER © SF LIA,
Aéner 4 MABE GEEX
ii Aw @ 4A»,
ATTORNEYS
—
United States Patent Office
3,313,443
Patented Apr. 11, 1967
3,313,443
FLOATING COVER FOR A LIQUID STORAGE
sy , = Placentia, and
William B. mare Wha Calif., assignors to Globe
Linings, lac., Beach, Calif., 2 corporation of
Filed June 26, Ser. No. 378,469
s Chee te 220—26)
The present invention relates to a floating cover for a
liquid storage reservoir, and more particularly to a float-
ing cover adapted to rise and fall with the level of the
stored liquid, according to the consumption and replen-
ishment thereof
It is an object of the present invention to provide a
floating cover which will protect the liquid in a storage
reservoir from small animals and birds and from dele-
terious substances such as dirt, radioactive fallout, and
the like, and which is strong enough and sufficiently well
supported by flotation means to support relatively heavy
loads, such as the weight of snow. The invention is par-
ticularly adapted for use in conjunction with conven-
tional water reservoirs characterized by sloping side walls,
although it can also be used in conjunction with reservoirs
and tanks having vertical walls. Such water reservoirs
usually contain large volumes of water and it is impor-
tant that the cover utilized to protect the water be rela-
tively inexpensive and yet be capable of accommodation
to the varying water areas as the water level rises and
falls in the slope-sided reservoir.
Another object of the invention is to provide such a
floating cover which is adapted to define a drainage and
expansion section or sump for concentrating rain water
so that it may be periodically removed, as by pumping
or the like.
Yet another object of the invention is to provide a
floating cover for a water reservoir which is supported
upon the surface of the water by a plurality of sets of
flotation units, and wherein each sect of flotation units
defines an unsupported area therebetween which tends to
collect rain water. A system of drainage pipes or lines
is provided with inlet openings in communication with
each of these unsupported areas for removing the col-
lected rain water.
It is also an object of the invention to provide a means
for anchoring the floating cover relative to the bottom
of the reservoir to constrain the cover against lateral
movement, which might occur by virtue of strong winds
sweeping laterally across the surface of the reservoir.
Another object of the invention is to provide a floating
cover which can be installed in a water reservoir for pro-
tection of the stored water without the necessity of re-
moving any of the water therefrom, and which includes
a fap or flaps which can be opened to afford access to
the umlerside of the cover and to the interior of the
resei voir for maumenance purposes and the like.
A further object of the invention is to provide a float-
ing cover which can be installed in a water reservoir for
protection of the stored water without the necessity of
removing any of the water therefrom, and which is adapt-
ed for support by a plurality of cables or the like dis-
posed therebeneath during emptying of the reservoir for
maintenance or repair of the reservoir.
Other objects and features of the invention will become
apparent from consideration of the following description
taken in connection with the accompanying drawings, in
which:
FIG. 1 is a plan view of a floating cover in accordance
with the present invention;
FIG. 2 is an enlarged view taken along the line 2—2
of FIG. 1;
20
25
30
70
ja: 3 is an enlarged view taken along the line 3—3
of FIG. 1;
FIG. 4 is an enlarged view taken along the line 4—4
of FIG. 1;
FIG. 5 is an enlarged view of the area designated by
the numeral § in FIG. 1;
FIG. 6 is an enlarged view taken along the line 6—6
of FIG. 1;
FIG. 7 is an enlarged view taken along the line 7—7
of FIG. 6;
FIG. 8 is an enlarged view taken along the line 8—8
of FIG. 1;
FIG. 9 is a plan view of another form of floating cover
in accordance with the present invention;
FIG. 10 is an enlarged view taken along the line
10—10 of FIG. 9;
FIG. 11 is an enlarged view taken along the line
11—I1 of FIG. 9; and
FIG. 12 is an enlarged view taken along the line 12—12
of FIG. 9.
Referring now to the drawings, the floating cover of
the present invention is designated generally by the
numeral 10 and is illustrated in association with an
earthen reservoir 12 which in the present instance is
rectangular in shape. The particular reservoir 12 is char-
acterized by downwardly and inwardly slanting or slop-
ing side walls 14, as best viewed in FIGS. 2 and 3, which
are usually formed by a compacted subgrade 13 of earth
covered with a relatively thin layer 18 of asphalt of
cement treated material.
By virtue of the fact that the reservoir 12 has sloping
side walls, the area at the upper extremity or periphery
of the reservoir is greater than the corresponding area
at the base or bottom of the reservoir and the cover 10
must be adapted to accommodate itself to the difference
in area as the level of the water rises and falls accord-
ing to the Consumption and replenishment thereof.
The cover 10 is continuous sheet of material, such as
flexible, relatively thin butyl rubber shecting or vinyl,
polyethylene or like film impervious to and adapied tw
completely overlie the water in the reservoir 12 in co-
extensive relationship to the reservoir periphery. The
sheeting or film is preferably fabtic reinforced for im-
proved tear strength. The size or area selected for the
cover 10 is such that it is appreciably greater than the
arca of the reservoir periphery, that is the periphery of
the reservoir at its upper extremity. With this arrange-
ment, wrinkles or folds 16 are formed in the cover 10,
and tend to develop adjacent the periphery of the reser-
voir 12 for reasons which will become apparent herein-
after.
The peripheral or free edges of the cover i@ are
anchored in position in substantially air and fluid-tight
relationship by a peripherally continuous sheet anchor 18
adjacent the uppermost extremity of the reservoir. Any
suitable shect anchor 18 for maintaining the cover 10
in position in substantially fluid-tight relationship is satis-
factory. One exemplary form of sheet anchor 18 is illus-
trated in FIGS. 1, 3, and 4. In this cunstruction, the
anchor 18 comprises a fixed puriion 22 which extends
about the periphery of the reservoir 12 and is convenient-
ly made of concrete firmly embedded in the subgrade 13.
Facing elements 26 are arranged coextensive with the
fixed portion 22, and are constituted of elongated lengths
of timber arranged in abutting relation at their ends.
Each anchor 18 also includes a plurality of movable por-
tions which each comprise an elongated concrete block
3 and a coexiensive facing element 32 made of a wooden
timber or the like. The plurality of blocks 3@ and
associated elements 32 are arranged in confronting rela-
tionship to the facing elements 26 and the fixed portion
22 of the sheet anchor so that the wooden facing ele-
a
3,313,:4%
ments 26 and 32 define jaws initially spaced apart to re-
ceive the outer margin of the cover 10. The movable
and fixed portions of the shect anchor are then moved
together to clamp the edge of the cover 10 therebetucen
by operating a plurality of nut and bolt asseniblies, one
of which is illustrated at 34 in FIG. 4. With the pro-
vision of the continuous shect anchor 18, ut will be ap
parent that the cover 10 may be quickly installed with-
out having to remove any of the water from the reservour
and without having to make any special anchorages of
provisions for anchorages in the botiom of sides of the
reservoir. In addition, a fluid-tight relationship is pro-
vided between the cover 1@ and the periphery of the
reservoir.
In order to obtain access to the underside of the cover
10 and the interior of the reservou, four flaps are
provided at the four corners of the cover 10, each flap
36 being defined by a right angular cut in the cover 10,
suitably strengthened by reinforcing strips and secured in
closed pusition by lacing 38 or the dike.
The cover 1® is floated or buoyed upon the surface
of the stored water by a plurality of float units 40 so
that in the event that the cover 10 1s accwentally torn,
it is prevented from sinking to the bottom of the reservoir
and thereby complicating repair of the cover. The cover
10 could also be floated by employing the float arrange-
ment of FIGS. 9-12, as will subsequently be described,
or the cover 10 could itself be made floatable by making
it of a material such as fcamed plastic having positive
buoyancy and characterized by marginal flexible portions
of the neutral or negative buoyancy. However, utiliza-
tion of the float units 4@ is preferable where it is desired
to drain water from the cover 10 from a number of
different points over the surface thereof
Each float unit 40 is made of buty! rubber and is
provided with ag inflation valve 43 extending above the
surface of the cover 10. That is, each float unit is affixed
to the underside of the cover by three straps 42 secured
to the underside ot the cover by a plurality of suitable
fasteners 44, the inflation valve 43 for cach float unit ex-
tending upwardly through a suitable opening in the cover
so that the unit may be easily inflated or deflated.
The float units 40 are preferably arranged in sub-
stantially uniformly distributed sets of four, the four units
of each set being oriented to define a rectangular bay
41 or unsupported area therebetween. With this arrange-
ment, rain water tends to collect in the unsupported areas
defined by the sets of float units, making it possible to
pump or otherwise drain this water off the surface of
the cover by pumping from each bay 41, as will be seen.
In addition, it is particularly noted that the float units
4@ are spaced away from the outer periphery of the
cover 1@ to define an unsupported peripheral area con-
stituting an expansion and drainage section or sump, which
is designated in FIG. 1 by dash-dot lines extending about
the periphery of the cover 1@ and identified by the numeral
46.
The area of the sump 46 is completely unsupported by
float units so that the excess material in the cover tends
to develop the folds 16. Then, as rain water collects
upon the surface of the cover, the rain water tends to
flow to the lower, unsupported arcas of the cover, com-
prising both the bays 41 and the sump 46. The water in
the sump 46 forces the folds 16 more deeply into the
stored water as the volume of rain water increases. Drain-
age of the rain water to the sump 46 may be increased
by selectively inflating the float units 4@ so that the more
interiorly disposed float units ride higher on the reservoir
water cause the rain water to flow exteriorly or oulward-
ly into the sump 46.
In certain applications water collection in the area of
the sump 46 is sufficient without resorting to the inflatable
float units 4@, and in these instances an arrangement like
that illustrated in FIGS. 9-12 can be used. as will be
more particularly described hereinafier.
70
75
A plurality of flexible drain lines 48 are arranged to
extend across the cover 1@ as best illustrated in FIG. 1,
and afe each provided with inlet openings $@ in com-
munication with the unsupported bays 41 defined by
each set of the float units 40. One extremity of each of
the drain lines 48 is capped or closed, as at 49, and the
opposite extremities of the lines are connectej to a mani-
fold drain line $2 extending transversely of the lines 48
at one end of the reservoir. In addition, a continuous
sump drain line $4, normally located at a level below
that of the line $2, extends about the periphery of the
cover and is provided along its length with openings (not
shown) in communication with the sump 46.
The manifold line $2, as best illustrated in FIG. 2,
is connected by a flexible drain line $6 to a drain conduit
$8 secured by a bracket $9 to the facing element 32 in
the berm 2@ of the reservoir. The drain conduit $8 is
made of a length sufficient that it will reach the manifold
line $2 at the lowest level to which the water in the res-
ervoir falls. The drain conduit 58 is connected to any
suitable pump or drainage means (not shown) whereby
the rain water collected in the bays 41 can easily be re-
moved.
The sump drain line 54 is connected by a flexible drain
line 6@ to a drain conduit 61 which is located alongside
the drain line $6 and is connected to the facing element
32 by the same bracket $9 which secures the drain con-
duit 58. Like the flexible line $6, the line 6@ is made of
a length sufficient that it will reach the sump line $4 at
its lowest leve! within the fold 16 defining the sump 46.
The drain conduit 61 is connected to the same pump or
drainage means (not shown) to which the drain conduit
58 is connected so that the pump can take a suction on
either or both of the conduits, as will be apparent to
those skilled in the art.
The cover 1@ is constrained against lateral movement,
as might occur by virtue of a wind sweeping across the
surface of the reservoir, by a plurality of anchors 62 rest-
ing upon the bottom of the reservoir. Each anchor 62
is connected to the cover by a flexible line 64 made of a
length sufficient to accommodate the rise and fall of the
cover 10 during use of the reservoir, the upper end of
cach line 64 being secured to a fitting 66 which is adhered
or otherwise secured to a reinforced section 68 of the
cover 10.
Referring now to FIGS. 9 through 12, there is illus-
trated another cover in accordance with the present inven-
tion, designated generally by the numeral 70. The cover
in °
The size of the cover 7@ is greater than the area of
\he reservoir at its upper periphery so the
are formed at the outer margin of the cover 70, as was
the case with the cover 10. The cover 7@ is fabricated by
securing to:ether a plurality of elongated strips of the
cover material, the seams between such strips being best
illustrated in FIG. 11. The adjacent margins of the
cover strips are arranged to form a lap join any
able adhesive 72 is interposed between the lap portions
of the strips to secure them together.
A plurality of elongated floats 74 and 75 are secured
to the underside of the cover 70, as best illustrated in
FIGS. 9 and 10, by a suitable adhesive 76. The floats
74 extend perimetrically along the sides and ends of the
cover 7@ in a rectangular configuration and, in one em-
bodiment, are approximately 12 inches wide. Each float
74 is elongated and abuts the adjacent floats at its ends.
Each float 74 and 75 includes a central portion 78 made
of buoyant material such as one of the well known pias-
=
$3,313,443
tic or rubber foam materials, and also includes an outer
casing 80 made of butyl rubber and completely envelop-
ing the portion 78.
The peripheral band of floats 74 are spaced from the
edge margin of the cover 70 and define the unsupported
sump portion 46 between the marginal floats and the edge
of the cover 70. In addition, the plurality of floats 75,
preferably of lesser width than the marginal floats 74,
extend across the cover beneath each of the seams be-
tween the cover strips. Thus, the pattern of floats 74 is
a rectangular perimeter of floats, the floats 75 constitute
a plurality of strings of floats across the cover in parallel,
spaced relationship to one another.
Rain water collects in the sump 46, as previously de-
scribed in connection with the first embodiment, by forc-
ing the folds 16 deeper into the water stored in the
reservorr.
Referring now to FIG. 12, the edge margins of the
cover 70 are secured in position adjacent the berm cf
the reservoir in substantially fluid-tight relationship by a :
peripherally continuous concrete footing 82 firmly em-
bedded in the subgrade 13. The footing 82 includes a
plurality of equally spaced siuds 84 embedded therein, and
a plurality of elongated anchor elements 86 are arranged
in end-abutting relationship along the length of the foot-
ing 82 and are each provided with suitable openings for
receiving the uprer ends of the studs 80. The margin
of the cover 7@ is also provided with similar openings
for the studs 80 so that the cover may he secured in po-
sition by first disposing the margin thercof in position
upon the studs 80 and thereafter placing the anchor
clements 86 in position so that the cover 70 i, sandwiched
between jams constituted by the elements 86 and the
upper surface of the footing 82. A plurality of nuts 88
are then threaded upon the plurality of studs 8@ to
firmly secure the cover 7@ in position.
With the arrangement just described, no provision aeed
be made for pumping rain water from the central por-
tions of the cover. Rather, the arrangement of floats
74 has been found to float the cover high enough in the
reservoir water that rain water can drain into the sump
46 for removal by any suitable pump (not shown).
Thus, the sump 46 can be drained merely by disposing a
flexible drain line in any portion of the sump and taking
a suction until the collected water is removed, as will be
apparent.
The footing 82 also includes a plurality of peripherally
spaced and embedded |-bolts 98, each I-bolt on one side
of the reservoir having its counterpart located in the con-
fronting footing 82 on the opposite side of the reservoir.
With this arrangement supporting cables 92, indicated in
dash-dot outline in FIGS. 10 and 11 can be disposed be-
neath the cover 70 and connected at their opposite ex-
tremities of the I-bolts 90. The cables 92 thus extend
bencath the cover in parallel relationship, as indicated
by the paralici dush-dot lines 94 in FIG. 9, so that when
it is desired to repuir the bottom or side walls of the reser-
voir, the stored water can be emptied and the cover 70
supported or suspended above the reservoir floor. The
cables 92 may be installed beneath the cover and attached
to the I-bolts 90 when the cover is first installed, if suffi-
cient slack is provided in the cables to permit the cover
to rise and fall with the change in level of the stored
water, or the cables may be installed only when it is
desired to empty the reservoir. In this case, skin divers
can easily install the cables in their proper positions.
Although not shown, the underside of the cover 70 in
the area of the cubles ix preferably suitably reinforced
by adhesively securing an eatra thickness of buty! sheet-
ing, thereby reducing possible abrading of the underside
of the cover by the cables 92.
From the foregoing it will be apparent that a floating
cover has been provided which is adapted to not only ac-
commodate itself to the rise and fall of the water level
in a reservoir, but which is also adapted to define a sump
10
15
25
3n
40
45
55
70
76
6
area adjacent the periphery of the reservoir for the col-
lection of rain water whereby the rain water may be
easily pumped away or otherwise removed. In addition,
the cover completely overlies the water in the reservoir
and prevents contamination of the water by deleterious
substances or by small animals and birds.
Various modifications and changes may be i
regard to the foregoing detailed description without de-
parting from the spirit of the invention or the scope 0
the following claims.
We claim:
1. A floating cover for a liquid storage reservoir
wherein the level of the stored liquid varies, said cover
comprising:
a continuous sheet of flexible material impervious to
and adapted to completely overlie the liquid in the
storage resservoir in coextensive relationship to the
reservoir periphery for attachment thereto, the area
and flexibility of said sheet permitting formation of
depending folds in said sheet;
a plurality of anchors adapted to rest upon the bottom
of said reservoir;
a plurality of flexible lines connecting said anchors to
various portions of said sheet to constrain said sheet
against lateral movement over the surface of the
stored liquid;
outer periphery of said sheet, rain water tending to
collect in said depending folds and force said folds
deeper into the stored liquid as the volume of rain
water increases.
a
a6
mr
uh
Ha
Le E
2 tis 4
He
a
3,313,445
7
sheet, the peripheral edges of said sheet being dis-
posed between said jaws and firmly held thereby in
the closed position thereof;
a plurality of anchors adapted to rest upon the bottom
of said reservoir;
a plurality of flexible lines connecting said anchors to
various portions of said sheet to constrain suid sheet
against lateral movement over the surface of the
stored liquid;
and flotation means on said sheet interiorly of the outer
periphery thereof for supporting said sheet upon the
surface of the stored liquid whereby said depending
folds tend to define a sump section adjacent the outer
periphery of said sheet, rain water tending to collect
in said depending folds and force said folds deeper
into the stored liquid as the volume of rain water
increases.
4. In combination:
a liquid storage reservoir having sloping side walls and
a peripheral berm;
anchor means located about the periphery of said
reservoir adjacent said berm and including fixed and
movable portions constituting jaws, and further in-
cluding means for urging said jaws closed, said an-
chor means mounting u plurality of cable mounts;
continuous sheet of flexible miuterial impervious to
and adapted to completely overlic the liquid in the
storage reservoir in coextensive relationship to the
reservoir berm, the area and flexibility of said sheet
permitting formation of depending folds in said
sheet, the peripheral edges of said sheet being dis-
posed between said jaws and firmly held thereby in
the closed position thereof;
flotation means on said sheet interiorly of the outer
periphery thereof for supporting said sheet upon the
surface of the stored liquid whereby said depending
folds tend to define a sump section adjacent the
outer periphery of said sheet, rain water tending to
collect in said depending folds and force said folds
deeper into the stored liquid as the volume of rain
water increases;
-
~
10
20
25
30
35
40
and a plurality of cables extending between said cable
mounts and beneath said sheet in positions to sup-
port said sheet in the absence of liquid in said reser-
voir,
5. Apparatus for preventing contamination of the
stored liquid in an open reservoir, comprising:
a continuous sheet of flexible, relatively thin material
impervious to and completely overlying said liquid in
coextensive relationship to the periphery of said
reservoir, the size of said sheet being greater than
the area encompassed by the upper periphery of said
reservoir;
anchor means securing the outer periphery of said
sheet to the upper periphery of said reservoir in
fluid-tight relationship therewith;
and float means on said sheet spaced inwardly from the
upper periphery of said reservoir to raise and lower
said sheet on the surface of said liquid as the level
thereof varies, with said float means supporting the
area of said sheet engaged by said float means at a
higher elevation than the portion of said sheet spaced
outwardly of said float means and inwardly of said
anchor means whereby said portion forms a depend-
ing rainwater collection sump.
References Cited by the Examiner
UNITED STATES PATENTS
ON (“rr 220—26
2,497,850 2/1950 Allen .....--..-.-... 220—26
2,815,809 12/1957 Jacobs et al. ....-..--- 4—172
2,867,346 1/1959 Champagnot _.....-_- 220—26
2,970,716 2/1961 McCammon .-.....-- 220—26
I MS 220—26
3,120,320 2/1964 Wissmiller _.......-.- 220—26
NN ( yy 4—172
FOREIGN PATENTS
888,975 9/1953 Germany.
1,154,765 9/1963 Germany.
THERON E. CONDON, Primary Examiner.
JAMES R. GARRETT, Examiner.
CERTIFICATE OF SERVICE
I, FRANCIS A. UTECHT, a member of the Bar
of this Court, hereby certify that on October 6,
1977, three copies of the attached PETITION FOR
WRIT- OF CERTIORARI TO THE UNITED STATES COURT OF
APPEALS FOR THE NINTH CIRCUIT were mailed, postage
prepaid, to attorneys for Respondents, addressed as
follows:
JAMES EICKELBERG
City Attorney
Post Office Box 486
Corvallis, Oregon 97330
KOLISCH HARTWELL & DICKINSON
M. H. HARTWELL, JR.
1004 Standard Plaza
Portland, Oregon 97204
DEZENDORF, SPEARS, LUBERSKY & CAMPBELL
GEORGE L. KIRKLIN
800 Pacifie Building
Portland, Oregon 97204
I further certify that all parties required
to be served have been served.
Francis A. Utecht
Suite 910 Fidelity Federal Plaza
555 East Ocean Boulevard
Long Beach, California 90802
— Counsel for Petitioners
This is a copy of a public record, reproduced as it was published. It is not legal advice, and it may not be the version a court would rely on. Check the official source before you cite it.