Piel Manufacturing Company v. George A. Rolfes Co.

233 F. Supp. 891, 143 U.S.P.Q. (BNA) 107, 1964 U.S. Dist. LEXIS 9586
CourtDistrict Court, S.D. Iowa
DecidedOctober 2, 1964
DocketCiv. 5-1250
StatusPublished
Cited by2 cases

This text of 233 F. Supp. 891 (Piel Manufacturing Company v. George A. Rolfes Co.) is published on Counsel Stack Legal Research, covering District Court, S.D. Iowa primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Piel Manufacturing Company v. George A. Rolfes Co., 233 F. Supp. 891, 143 U.S.P.Q. (BNA) 107, 1964 U.S. Dist. LEXIS 9586 (S.D. Iowa 1964).

Opinion

HANSON, District Judge.

Plaintiff, Piel Manufacturing Company, Incorporated, is an Iowa corporation located at Hubbard, Iowa. It was-incorporated in 1959 and was preceded in business by a partnership, Piel Manufacturing Company, which was composed of plaintiff, Alfred J. Piel, and members of his family. Plaintiff Curry-trol Oil Corp., of Hubbard, Iowa, is also an Iowa, corporation which was formed in 1959, and plaintiff Alfred J. Piel is president of both plaintiff corporations.

*893 Defendants, George A. Rolfes Co. and Rolfes Manufacturing Co. are Iowa corporations located at Boone, Iowa, and George A. Rolfes is President of both corporations. Subsidiary Rolfes corporations exist in several midwestem states. Since about 1954, defendants have been manufacturing and selling grain aeration equipment and related items. The Rolfes Manufacturing Co. does the manufacturing of these products and sales are handled by the George A. Rolfes Co.

Plaintiif Alfred J. Piel is the inventor of record and owner of the patents in suit, namely, patent Nos. 2,813,510 and 2,794,422 on cattle oilers and rubbing elements therefor, respectively. Plaintiif, Piel Manufacturing Company, Incorporated, is the licensee under these patents.

Plaintiif Piel Manufacturing Company, Incorporated, is the owner by assignment from its preceding partnership of the trademark “Currytrol” and trademark registration No. 679,190 thereon, said trademark being used on cattle oil-ers. Said corporation is also the owner of the trademark “Currytrol” and registration No. 748,038 thereon for use on insecticide oil, and plaintiif Curry-trol 011 Corp. is a licensee under this trademark. Piel Manufacturing Company, Incorporated, makes and sells cattle oil-ers under its trademark, and the Curry-trol Oil Corp. manufactures and sells the insecticide oil sold under its licensed mark.

Of patent 2,813,510 (referred to as the 510 patent), only claims 1, 2, 3, 4, 5, and 12 are involved in this suit. These claims read as follows:

Claim 12 contains:

a) A tank.
b) A bearing frame mounted in the upper portion of said tank.
c) A cable operatively movably mounted on said frame and extending downwardly and outwardly in two directions.
d) A means for anchoring the two ends of said cable.
e) A liquid pump secured to said bearing frame and having
f) An actuating member.
g) A means operatively connecting said pump with the interior of said tank.
h) Said actuating member on said pump operatively connected to said cable.
i) A discharge conduit leading from said pump to a point in the vicnity of said cable.

Claim 1 of the 510 patent is substantially the same as claim 12 except that it calls for two spaced apart wheels rotably mounted on the frame.

Claim 4 of the 510 patent is the washers mounted on the cables.

Claim 5 of the 510 patent consists of the spring connected to the actuating member of the pump and it incorporates all of claim 1.

Claim 2 of the 510 patent modifies the structure of claim 1 by providing that the liquid discharge conduit leads from the pump to a point in the vicinity of the cable at a point between the wheels.

Claim 3 of the 510 patent defines the wheels of claim 1 as pulley wheels.

It is the claim of the plaintiffs that these claims of the 510 patent are infringed by the defendants and that the 510 patent is valid. Defendants deny the infringement and claim the 510 patent is invalid.

Piel made a few cattle oilers substantially the same as shown in the patent drawings. Later Piel developed Model 561 which used a single pulley wheel instead of two wheels shown in the patent drawing. Still later, Piel developed Model 601 which added a full sized, cylindrical tank. It is this Model 601 which is involved in the unfair competition claim. Both Models 561 and 601 worked on the principle of a single cable-

The defendants claim that the original 510 patent under the doctrine of equiva-member on the pump to be operatively connected to the cable. Defendants also *894 claim that this was necessary to make the unit operative.

Defendants contend that because their machine does not have two spaced apart pulley wheels and because the actuating member on their pump is not connected operatively to the cable, their structure does not literally infringe the 510 patent and further that it does not infringe the 510 patent under the doctrine of equivalents.

Patent No. 2,794,422 (referred to as the 422 patent) is a liquid redirecting element located on the cables of the cattle oiler and is designed to reduce oil wastage by redirecting oil from the surface of the rubbing elements back to the cable. The 422 patent contains 9 claims and the defendants are charged with infringing claims 1, 2, 5, 6, 7, 8, and 9.

The elements of claim 1 of the 422 patent are:

a) A cable adapted to be supported at its ends in an inclined relation with respect to the ground.
b) Said cable having intermediate its length at least one liquid redirecting unit.
c) And washer-like means on said cable in engagement with opposite sides of said unit to hold said unit against movement along said cable.

Claim 2 of the 422 patent incorporates claim 1 and adds a spool having an open well at one end thereof receiving a portion of the washer-like means and a communicating bore embracing the cable.

Claim 5 of the 422 patent contains the following elements:

a) A cable adapted to be supported at its ends in an inclined relation with respect to the ground.
b) Said cable having intermediate its length at least one liquid redirecting spool unit comprising
c) an elongated body member having
d) an enlarged upper portion and
e) lower portion,
f) a bore in said lower portion embracing said cable,
g) an open well in said enlarged upper portion communicating with said bore and having a diameter greater than said bore,
h) and washer-like means on said cable in engagement with opposite sides of said unit to hold said unit against movement along said cable.

Claim 6 of the 422 patent incorporates claim 5 and adds the fins on the outer surface of the 422 structure.

Claim 7 of the 422 patent is very similar to claims 1 and 5.

Claim 8 of the 422 patent incorporates claim 7 and adds the feature that the lower end portion of one washer structure has an outside diameter less than that of the inside diameter of the top end of the washer structure. This allows the separate washer-like structures to fit together.

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Bluebook (online)
233 F. Supp. 891, 143 U.S.P.Q. (BNA) 107, 1964 U.S. Dist. LEXIS 9586, Counsel Stack Legal Research, https://law.counselstack.com/opinion/piel-manufacturing-company-v-george-a-rolfes-co-iasd-1964.