33 F. 284 | U.S. Cir. Ct. | 1888
The hill in this case seeks to restrain the alleged infringement of letters patent No. 259,700, granted to complainant January 20, 1882, for a “pad for horse-collars;” patent No. 267,011, granted to complainant, November 7, 1882, for a “pad for horse-collars;” and patent No. 298,626, granted May 18, 1884, to John Scherling and L. I), llandall & Co., for a “'pad fastening for horse-collars,” which iasl letters patent complainant now holds by assignment. All these patents relate to devices for fastening the pad to a horse-collar, the pad being a sort of cushion, made of soft cloth, stuffed with hair, to be interposed between the collar and neck of the horse, used mainly for heavy draft harness, the pads themselves are admitted to be old, and these patents have only to do with contrivances for fastening them to the collar.
The first pa tent covers a fastening consisting of two elastic steel hooks, fixed firmly by rivets to the pads, with the hooks so adjusted that one clasps the front roll or wale of the collar, while the other hook clasps the after roll of the collar; the hooks being of elastic material, set so as to firmly grip or clasp the rolls of the collar, and thus keep the pad in place, and, by reason of the elasticity of the springs, the pad, while hold properly in place, is readily detachable from the collar. This patent contains two claims, hut infringement is charged only as to the first, which is in these words: “As attachments to a sweat or other horse-collar pad, the elastic springs, s, s, substantially as described, and for the purpose set forth.”
The second pa,tent shows a device similar in all respects to the first, except that only one elastic hook is used, which is so arranged as to clasp the fore roll of the collar, the hook for grasping the hack roll of the collar being dispensed with. This patent contains two claims; infringement is charged as to both. These claims arc as follows: (1) “As an attachment to a horse-collar pad, or other harness pad, and as adjustably attaching a pad to a horse-collar, or other part of harness, the elastic single-roll, or single-curved spring, S, constructed, arranged, attached, and operating substantially in the manner shown or described, and tor or with the purposes set forth.” (2) “The combination, with a horse-collar pad, of the elastic single-roll or single-curve spring, S, substantially in the maimer shown or described, and for the purposes set forth.”
The third patent covers a single safety-pin and hook, so constructed that the shaft of the pin is thrust into the soft material of the pad, and its point secured in the safety-lock, while a bow or hook springing from the guard of the pin is clasped over the fore roll of the collar, substantially in the same way shown in the McClain second, or single-hook patent; file only difference being that in McClain’s second patent, the hook is riveted to the pad, while in the Scherling patent the hook is pinned
The defenses are: (1) That defendants do not infringe either patent. (2) That the two last-mentioned patents are void for want of novelty.
The defendants use a strong, stiff wire hook, fastened to a stiff piece of leather, which is riveted to the pad, and adapted to clasp the front roll ■only of the collar, depending for its ready connection with and grip of the collar rather upon the yielding nature of the collar than the elasticity ■of the hook. Although there is undoubtedly some elasticity in the wire from which defendants’ hook is made; yet it is manifest that the hook is intended to operate by. forcing the collar-roll into the throat of the hook instead of opening a light flexible spring, and snapping it around the collar-roll, as would be done in applying the spring shown in either of the McClain patents.
As to the first of these patents, I think there can be no doubt that the first claim, and for that matter both claims, requires the use of the double •springs, s, s, one arranged to grasp the front, and the other the back roll ■of the collar. The claim is for the attachment of these springs, s, s, to a horse-collar pad. The patentee says in his specifications:
“One end of a spring is so curved as to partly encircle the fore wale or small roll of the collar, and to hug it so closely as to keep out of the way of the hame, and the other end is so curved as to similarly partly encircle and hug the after wale, or body side of the collar, and yet not interfere with the hame.”
Here he describes two hooks or elastic springs for the purpose of attaching the pad to a horse-collar, and claims this device as his invention. A study of the specifications of this patent also shows, I think, very clearly, that the patentee intended to use hooks which should depend mainly for their operation on their quality of elasticity. Now, as the defendants use only one hook, and that not dependent on its elasticity for its effective operation, as I think a stiff hook of cast or malleable iron would work as well as defendants’ wire hook, it is clear to me that they do not infringe the first claim of this patent. It was urged on behalf of defendants upon the argument that this first claim is baldly for the elastic springs, s, s, and that the words “as attachments to a sweat or other horse-collar pad ” are surplusage, on the ground that an inventor is entitled to all the uses to which his invention is applicable, (Roberts v. Ryer, 91 U. S. 157;) and that this claim, not being for a combination of the springs, s, s, with the collar-pad, is for the springs alone. This claim may be subject to this construction, but I do not base my opinion upon this view of it, as it is palpable to my mind that the claim only covers the two springs, s, s, when used together to fasten a pad to a horse-collar, and that the use of one spring is not an infringement. In fact the complainant must, I think, be held to have admitted that his first patent required two springs by his subsequent application for a patent on his single-hook attachment.
“A reconstruction of the machine so that a less number of parts will perform all the functions of the greater may be invention of a high order, but the omission of a part, with a corresponding omission in function, so that the retained parts do just what they did before in the combination, cannot be other than a mere matter of judgment, depending upon whether it is desirable to have the machine do all or less than it did before.”
In bis first patent, McClain provided fastenings to the front and rear rolls of the collar. He found by use that the front spring alone was a sufficient fastening for practical purposes, and there was, therefore, no invention in omitting the rear spring from his device, and using the front spring alone to perform the same functions it did in the first patent. It is true that when only the forward spring is used, it enables the person using the pad to fix its location on the collar more readily than when two springs are used, as in that case the two must be so located as to enable both springs to clasp their respective rolls of the collar, and, as the rolls of the collar diverge, the double spring could fix the pad only at one place on the collar; but the convenience that may follow this use of this front spring-alone, does not give to this front spring any new function or feature. In other words, it was nothing but a convenient mechanical adaptation of this first patent to the uses for which it was designed to cut off one of these springs when experience had shown the back one was not necessary. The single spring shown in the second patent does not do all that was done by the two springs in the first patent, but it does enough for practical purposes. Mr. McClain having by his claim and specifications clearly limited himself by his first patent to the two springs used together as shown, I do not think there was any patentable novelty in dispensing with one of these springs; and hence conclude that the second McClain patent is void for want of novelty.
For these reasons, I conclude the complainant’s bill must be dismissed for want of equity.