Miller Rubber Co. v. De Laski & Thropp Circular Woven Tire Co.

257 F. 733, 169 C.C.A. 21, 1919 U.S. App. LEXIS 2275
CourtCourt of Appeals for the Sixth Circuit
DecidedMay 6, 1919
DocketNo. 3220
StatusPublished
Cited by1 cases

This text of 257 F. 733 (Miller Rubber Co. v. De Laski & Thropp Circular Woven Tire Co.) 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
Miller Rubber Co. v. De Laski & Thropp Circular Woven Tire Co., 257 F. 733, 169 C.C.A. 21, 1919 U.S. App. LEXIS 2275 (6th Cir. 1919).

Opinion

WARRINGTON, Circuit Judge.

This suit grew out of alleged infringement of letters patent No. 1,OH,450, issued December 12, 1911, to Albert De Laski and Peter D. Thropp, assignors to the De Laski & [734]*734Thropp Circular Woven Tire Company, plaintiff appellee. The Miller Rubber Company, defendant appellant, denies both invention and infringement. A preliminary injunction was granted, and later the cause was tried in open court upon its merits. This resulted in an opinion and decree adjudging validity of the patent as to the claims in suit (1, 2, 3, 4, 7, 8, 10, 11, 12, 13, and 20), and their infringement, and also in the present appeal.

The invention relates to a tire-wrapping machine; and in the Third Circuit the same claims of .the patent as are in issue here were held valid and infringed. De Laski & Thropp Circular Woven Tire Co. v. William R. Thropp & Sons Co. (D. C.) 218 Fed. 458, affirmed upon appeal of Thropp & Sons Co. in 226 Fed. 941, 141 C. C. A. 545 (C. C. A. 3). Before the instant suit was commenced, appellant had purchased of appellee one of its make of tire-wrapping machines and is still operating it. Appellant had also purchased of the William R. Thropp & Sons Company a tire-wrapping machine which appellee claims was like the infringing device involved in the Third Circuit suit before cited; and appellant had also caused to be constructed, and it is still using, two tire-wrapping machines which appellee maintains were built in accordance with the patent in suit. The last three machines are the basis of the charge of infringement. We thus come to the question of validity'of the patent in suit.

We cannot think it necessary or appropriate to discuss the question of invention. The devices alleged to be infringements in the instant case are so nearly related in form and substance to the device con- ■ demned as an infringement in the case passed on in the Third Circuit, and the opinions there rendered by the District Court and the Court of Appeals alike are so full and so well considered, as to persuade us that another opinion on the subject of validity of the patent could serve no useful purpose. The present case is “peculiarly one for the application of the doctrine of comity.” Courtney v. Croxton, 239 Fed. 251, 152 C. C. A. 239 (C. C. A. 6). It is true, as regards the prior art, that appellant relies on some patents that do not appear in the opinions of the Third Circuit case. Assuming that appellant’s new citations are all relevant and that the excluded Midgley patent was admissible, we are unable to find in them anything of present importance in view of the patents considered in those opinions.

The infringement depends upon whether the use of the machines which appellant admittedly operated, in addition to the one it purchased of appellee, included the pressure head or its equivalent of the patent in suit. The pressure.head is .composed of mechanism disposed above and below the apex of an arch frame extending upwardly from the surface of the table carrying the tire and its assembled parts during the wrapping operation. The mechanism comprises (1) a tripod suspended within the arch, having rollers mounted on its lower ends, and designed to transmit heavy pressure to the mold and the mold rings and through them to the tire, in order to prevent dislodgement and expansion of the tire in the wrapping process; and (2) appliances for exerting and releasing such pressure and consisting either of a screw engaging the top of the tripod and operated hy a wheel, or of a cylinder and piston [735]*735disposed at the top of the tripod and operated by compressed air or steam. The pressure heads in dispute here are all of this latter type.

There are several remarkable features touching the use of this pressure head. After appellant put into operation the machine it had bought of appellee, it purchased and used the Thropp & Sons Company machine; later, although it had -meanwhile been notified by appellee that it was infringing the patent in suit, appellant employed another manufacturer to construct two machines substantially like the machine it had acquired of appellee, and put them into operation. We think the evidence fairly shows that the machine so acquired of Thropp & Sons Company and the machines so constructed each contained this pressure head; indeed this is scarcely open to doubt in view of two corroborating circumstances: First, that after March, 1915, possibly after the Third Circuit case was ultimately decided (August 9, 1915), Thropp & Sons Company notified appellant to remove the pressure head from the machine purchased of it, if the machine was still in use; and, second, some months before the instant suit was begun, appellant was advised by its own counsel to remove the pressure heads from the two machines it had caused to be constructed. It is not necessary to state the inferences to which this situation gives rise. 'However, appellant seeks in several ways to show that what happened did not amount to material infringement; and it insists that the appellee should be denied the right to maintain its present action in equity, and be remitted to an action at law.

It was sought to show, for example, that the machine obtained from Thropp & Sons Company was never used in a commercial sense; that is, it was only used for wrapping a small number of tires, and this “experimentally.” The machine was purchased in May, 1913, -and appellant’s witnesses differ as to the -length of time it was in use; its superintendent saying that it was not used after September of that year, and its assistant engineer saying that he knew it was not used after January, 1914. It seems to have been kept in the tire-wrapping room for about two years, when it is said it was “scrapped”—i. e., placed in the salvage department—the superintendent testifying:

“At the time this suit was brought the machine was in the salvage department. I cannot tell you why we did not send it back and ask the return of our money, when we found it was not satisfactory. I think that just slipped my mind; if I had thought of it earlier, I might have sent it back, don’t you know. The machine cost $1,500.”

Whatever else might be said of such a showing, it is inconsistent with the practically admitted length of time the machine was kept in use, and moreover, it is observable that no claim is made that the pressure head was ever removed.

The showing made as to the two machines appellant caused to be constructed is different. Admittedly they were installed and put into use in March, 1915. Appellant offered testimony to the effect that the pressure heads of the machines were removed before the instant suit was commenced (September 17, 1915); but its testimony is indefinite as to the time of removal, ranging from two weeks after the machines were placed in the tire-wrapping room, until the “summer” of 1915. [736]*736It is enough to say of this that appellee presented testimony which in our view is convincing that the machines were regularly operated with their pressure heads until at least October, 1915—something like a month after this suit was begun.

Appellant seeks in another way, however, to meet the charge of infringement as respects the two machines so constructed for it.

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Bluebook (online)
257 F. 733, 169 C.C.A. 21, 1919 U.S. App. LEXIS 2275, Counsel Stack Legal Research, https://law.counselstack.com/opinion/miller-rubber-co-v-de-laski-thropp-circular-woven-tire-co-ca6-1919.