Kant-Skore Piston Co. v. Sinclair Mfg. Corporation

32 F.2d 882, 2 U.S.P.Q. (BNA) 112, 1929 U.S. App. LEXIS 3904
CourtCourt of Appeals for the Sixth Circuit
DecidedJune 6, 1929
Docket4991
StatusPublished
Cited by11 cases

This text of 32 F.2d 882 (Kant-Skore Piston Co. v. Sinclair Mfg. Corporation) is published on Counsel Stack Legal Research, covering Court of Appeals for the Sixth Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Kant-Skore Piston Co. v. Sinclair Mfg. Corporation, 32 F.2d 882, 2 U.S.P.Q. (BNA) 112, 1929 U.S. App. LEXIS 3904 (6th Cir. 1929).

Opinion

MACK, Circuit Judge.

Suit for specific performance of a patent licensing agreement.

Patent No. 1325176 was granted December 16, 1919, to A. A. Spillman for an improvement in internal combustion engines. The object of the invention was to make practicable the substitution of aluminum for cast iron in pistons because of the substantial advantages in weight. This had theretofore been impracticable due to the fact that aluminum pistons expand under the heat of operation twice as rapidly as the east-iron engine cylinders containing them and thus tend to score the walls thereof. Spillman cut through the skirt, or depending cylindrical portion of the piston, two transverse slits near the head and two diagonal slits spiral-ling down from the transverse slits to the bottom edge of the skirt, thus forming disonnected oppositely tapering tongues. The primary function of the slits undoubtedly was to take up the expansion attendant upon heating without change in she or cylindrical form of the piston; but it is asserted both in patent, application and by the witnesses that the slits also serve to make the piston sides so resilient that the pistons can be fitted into the engine cylinder with very small clearance and yet be relied upon to spring back just sufficiently to permit easy passage when forced against the cylinder walls by the press-sure of each stroke.

While the application was pending, Spill-man gave an exclusive license on a small royalty to Sinclair and Hallstead, who formed the Sinclair Manufacturing Company, plaintiff herein. Plaintiff produced and marketed the pistons to an extent not clearly shown by the record, except that it *883 was more than negligible. Th§ name “Kant-Skore” was applied to the pistons, being used then and later, as the trial court properly found, to designate the type of article rather than the source of its origin, by calling attention to its principal virtue.

On May 15, 1920, plaintiff entered into a contract with one Armstrong, whereby it assigned through him to his corporation, the Walton & Macke Nail Company, all of its rights under the patent, and the assignee agreed to pay plaintiff “royalties in the sum of thirty-five cents for each and every piston, excepting as hereinafter specified, manufactured and sold in said territory under said patent right by second party or his assigns, respectively, under and pursuant to this agreement.” There were elaborate provisions for defense of the patent, and the assignee further agreed “to diligently proceed to make an organization and arrangements for the manufacture of such pistons and the distribution thereof in the best centers of said territory. * * * ” The assignee was given an option should it at any time decide that the patent was not of practical commercial use, to terminate the contract on ninety days notice, upon the surrender by it of all the rights therein granted. Later clauses provided that the assignee should pay at invoice prices for all the machinery and equipment of plaintiff’s factory, and that, “Party of the first part further grants unto second party and his assigns, the exclusive right to use the name and trade-mark ‘Kant-Skore,’ which said trade-mark has been copyrighted by first party, and first party now' licenses second party and such assigns to use said trade-mark in connection with the manufacture and sale of said pistons as herein provided.”

Pursuant to the condition precedent in this contract requiring consent by Spillman, the inventor on May 20th entered into an agreement with plaintiff and plaintiff’s in-corporators in which he gave his assent to that and to future transfers of the license, in consideration of a royalty to be paid him by plaintiff of 5 cents per piston with a minimum of $250 per month. Royalties were payable upon the 25th day of each next succeeding month; if not paid within a month thereafter Spillman could give notice to plaintiff, and all assignees and sublicensees of whose interest he had written notice, that the agreement and all rights thereunder would be canceled in 60 days in default of payment by plaintiff or an assignee, and if the payment were not so made then the agreement would “cease and determine’’ on the designated day. Spillman agreed to disclose and subject to the license any further improvements in connection with the piston he might discover.

During the succeeding year large quantities of “Kant-Skore” pistons were marketed by the nail company. Harry Hater, a Cincinnati shoe dealer, became its local representative and shortly thereafter induced a wealthy relative to buy the business and establish him therein. Accordingly, a new corporation, defendant Kant-Skore Piston Company, was formed by Hater and Armstrong. In May, 1921 there were assigned to it, in consideration of cash, notes, and the assumption of liabilities under Armstrong’s contract of May 15, 1920, all of the nail company’s rights under all of the above contracts in respect to the patent, as well as the assets, accounts, and good will of the business. Defendant gave Spillman notice of its rights so as to become entitled to any notice from Spillman of any breach by plaintiff of the May 20th agreement.

Defendant at first suffered losses in its operations, amounting to $106,000 by the end of 1921, but thereafter its business steadily improved until the Kant-Skore aluminum piston won a very important place in the industry, due in large measure to effective advertising of the trade-name.

The first months after the transfer to defendant were marked by widespread protest by dealers that a substantial percentage of the pistons were defective, in that after a period of use the tongues formed by the juncture of the spiral and transverse slits were bent in, especially, as examination is said to have disclosed, on the side of the skirt receiving the thrust of the power stroke, until the piston became distorted in shape and at places the clearance between the piston and the engine cylinder wall was far too great. Plaintiff contends, and as the trial court found at least to some extent rightly, that this caving in of the piston under pressure was due to the use by defendant in the early months of exceedingly soft low-grade metal. But defendant strenuously insists that the weakness resulted from an inherent error in the Spillman construction, namely, inclusion of the spiral slit across that side of the piston skirt bearing the brunt of the power stroke. Although the Sinclair Company had experimented with pistons slit only on one side and had marketed a few, this departure from Spillman was discouraged by him and, so far as the record shows, was not communicated to defendant. Hater, inexperienced as he was in pistqn mechanics, attempted by trial and error to remedy the *884 defect complained of by the dealers and finally evolved a construction modifying Spill-man in two respects: First, on the thrust side the metal was not out wholly through at the bottom of the skirt so as to produce the spiral slit but instead was merely grooved by a spiral slot backed up by the uncut inside reinforcing ring; second, this slot was stopped short of juncture with the "transverse slits, thus eliminating the tongues of metal on the thrust side.

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Bluebook (online)
32 F.2d 882, 2 U.S.P.Q. (BNA) 112, 1929 U.S. App. LEXIS 3904, Counsel Stack Legal Research, https://law.counselstack.com/opinion/kant-skore-piston-co-v-sinclair-mfg-corporation-ca6-1929.