Moyer v. Metal Stamping Co.
Opinion of the Court
This action in equity arises out of the alleged infringement of letters patent No. 591,561, issued October 12, 1897, to the assignors of complainant for thill coupling. According to the specification, the thill coupling has a fixed jaw or shackle eye section, to which is attached a spring connected to a movable jaw or eye section put together in such a way as to securely hold between them a coupling pin or bolt, and to release or disengage such pin or bolt by reversing the spring or turning it downward. Claim 1 in controversy clearly sets forth the elemental character of the device. To join a fixed and movable jaw so as to confine between them a coupling pin or bolt was old, and the employment of a spring attached to one of the jaws or blocks to open and close the coupling portions was also a familiar contrivance at the date of the patent in suit. Such a coupling device is shown in the patent to Pardee, No. 382,828, dated May 15, 1888. In the Moyer patent in suit the spring, which is the new element of the combination, is curved, the ends pointing in the same direction. One end is pivotally connected to the coupling part or jaw, while the spring at the other end extends forward further than the other to enable it to lock while the jaw is in a closed position. When the spring is turned or moved backward, the jaw is opened, and the shaft or bolt of the vehicle may be readily released. The spring is pivotally connected at one end to the fixed jaw and at the other to a link or bar which is preferably connected to the movable jaw. Such arrangement of the parts, as shown in figures 1 and 2 of the drawings, will automatically open and close the jaws from a middle position by the action of the spring. In figures 6 and 7 is shown a modification of the coupling which consists of connecting a link on the free end of the spring and extending across the upper part of the movable jaw. In the Pardee patent is shown a loose spring secured at one end to a clamp block which fits into a hook shaped jaw, and which operates to hold the clamp block in its position against the coupling pin. When the block is released, it flies upward with the spring. The spring in the patent in suit is thought essentially different, in that it produces a different result. It noticeably facilitates and makes easier the opening and closing of the pivoted jaw, and therefore the Pardee patent is not anticipatory. The Worrest thill coupling manufactured and sold by the defendant is structurally slightly different from that of complainant, but it is operated in substantially the same way, and certainly produces a like result. It has a curved spring connected at one end to a movable jaw, while the other end is pivoted to a bar in such a way as to enable opening and closing the jaws by a forward and backward movement of the spring. I think infringement would not be avoided if it were not that the defense of prior use is thought fairly established.
The latter defense arises from the claim that the coupling device or its substantial equivalent has been in public use for more than two years before the application for the patent in suit was filed with the Commissioner of Patents. It was admitted by the complainant that the Winans device claimed by the defendant to have been manufactured and in public use since 1894= has all the elements of the claim in controversy, and, if prior public use has been proven, anticipates the
The witness Bowers testified that the Winans coupling was not made in 1894, but that, in fact, it was made in the month of May, 1905, in the shop of the defendant under his direction, and at the request of the president of the defendant. To carry out the instructions given him, he designed the Winans exhibit from the specification in suit on a block of steel, and he testifies that a fellow employé, named Shannon, at his request made the exhibit coupling from his •sketch. He further testified that the spring made by Shannon was brittle, and that he then requested another fellow employé named Droz to harden it, and that a bolt in the thill eye was removed by another employé named Messenger. When the coupling was finished, he delivered it to Mr. Galvin, who on the next day suggested certain alterations appearing on a sheet of paper, and remarked that his pat
To determine the question of prior use under the facts and circumstances of this case is extremely difficult, and I have not concluded to reject the testimony of the complainant on this point without adequate deliberation. Ordinarily, where the evidence relative to prior use is contradictory or has been impeached or the circumstances are such as to discredit it, the court will not consider such defense as satisfactorily proven. But in the present case the witnesses were acquainted with devices of the description in suit. National Casket Co. v. Stolts, 157 Fed. 392, 85 C. C. A. 300. They were interested in. wagon thills and wagon paraphernalia owing to their occupations, and I think the disinterestedness of some of those who gave important testimony will not fairly admit of the court holding that complainant’s testimony is entitled to probative force, or that it is of sufficient weight to generate a reasonable doubt as to the asserted prior public use of the Winans coupling.
Because I entertain no such doubt as to the Winans thill coupling, the bill must be dismissed, with costs.
070rehearing
On Rehearing.
I have considered the application of complainant for rehearing, and have examined the reference in the petition to the testimony of Hurley, Otto Bauer, and Keenan. I have also considered the point that the exhibit Winans coupling shows no fraying or wear. According to the proofs, the pair of couplings retained by Winans was used much less than the pair with which he parted, which probably would account for any absence of fraying of the edges. Winans testified that the witness Hurley saw the coupling made, and Hurley says that he was present in 1894 when the coupling was in separate parts in Winan’s shop, and that later he saw it in its completed form. Such testimony would seem to support the statement of the court in the opinion that Hurley was present when the coupling was made. Otto Bauer testified that the coupling which he saw in 1905 was new, and painted black. The coupling in evidence was in the fire in defendant’s factory and later was found in the débris, and it has the appearance of having been painted black. It is claimed that the testimony of Bauer corroborates the claim of complainant that the coupling was actually made in 1905, as testified to by Bowers, and as evidenced by its new appearance and absence of fraying of the edges, but, giving consideration to the evidence of prior use in its entirety, such an inference is unwarranted.
The petition for rehearing is denied.
Case-law data current through December 31, 2025. Source: CourtListener bulk data.