I. T. S. Co. v. Tee Pee Rubber Co.

288 F. 794, 1923 U.S. App. LEXIS 2222
CourtCourt of Appeals for the Sixth Circuit
DecidedApril 5, 1923
DocketNo. 3804
StatusPublished
Cited by7 cases

This text of 288 F. 794 (I. T. S. Co. v. Tee Pee Rubber 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
I. T. S. Co. v. Tee Pee Rubber Co., 288 F. 794, 1923 U.S. App. LEXIS 2222 (6th Cir. 1923).

Opinion

DENISON, Circuit Judge.

This case is in effect a suit for infringement and unfair competition brought by the I. T. S. Company against the Tee Pee Company; the infringement charged being based upon the Tufford reissued patent No. 14,049 for rubber lifts for shoe heels. The District Court granted a preliminary injunction, but on appeal this order was reversed. Tee Pee Co. v. I. T. S. Co. (C. C. A.) 268 Fed. 250. The case then went to final hearing upon proofs taken, in open court. The District Judge thought that the question of patent infringement was controlled by the former decisión of this court, and accordingly held that the T. P. lift did not infringe the Tufford patent. He also found the existence of a measure of unfair competition, and awarded an injunction on that issue, but declined to order an account[795]*795ing of profits or damages. On this appeal the I. T. S. Co. insists upon the existence of infringement and upon its right to have an accounting.

Upon the issue of infringement, the controlling questions are precisely the same as those which were fully considered and decided upon the former appeal, and as to which the Circuit Court of Appeals of the Seventh Circuit, on appeal from an interlocutory injunction, has reached the same conclusion. U. S- Rubber Co. v. I. T. S. Co., 288 Fed. 786. We have carefully considered the very earnest and emphatic contentions of counsel, intended to demonstrate that our former conclusion was wrong, hut we are not convinced; on the contrary, further study confirms the results then reached.

The present record contains some further experiments, and some further testimony as to experiments and as to opinion, not found in the former record; but nothing that seems to us persuasive. With this conclusion, the decree might be affirmed upon the former opinion; but perhaps the contentions of appellant’s counsel are fairly entitled to some discussion. They are in effect — and coming to the vital point at once — that, in former structures, the center of the breast edge was the weak spot because of its tendency to be open; that the Tufford lift, by virtue of the functions inherent in the structure claimed, produced an intensive sealing of the breast edge up against the bottom of the heel, at the center as well as all the way across, and thus excluded water; that this result follows only indirectly from the flattening of the upper concave surface up against the heel, but comes directly from the tendency to “unflatten” — that is, of the distorted rubber to return to its original shape; that the greater the distortion the greater the pressure or thrust to return; that in the progress of flattening the T. P. lift, by nailing, the breast edge even at the center comes up against the heel in advance of any contact between the heel and the lift a little back from the edge, say an inch or half an inch, is therefore, as the flattening is. finished,"somewhat more distorted, and therefore has a mdre intensive upward thrust and sealing effect than has the body of the lift a little back from the edge.. In other words, it is said that though the T. P. lift as it is first piaced up against the heel, may have no low spot centrally located as in the Tufford heel, yet that, as the process of attaching is continued, this low spot develops somewhere out toward the breast edge, the lift then responds to the claim, and the remainder of the attaching process and the resulting breast edge sealing are according to the theory of the Tufford patent as we have construed it. We have no occasion to deny that infringement could be spelled out in this way if the orthography were correct; but we are convinced that the T. P. lift does not perform in this way to any substantial degree, in theory or in practice.

First, considering theory: We think confusion comes from thinking alone of the center longitudinal line of the upper face that is shown on page 251 of 268 Fed. It is obviously true that if this line only were involved, and it were pivoted at its higher end, it would, in the process of attachment, swing up until its forward end touched the heel, and then, as the center part was flattened, this forward end would [796]*796thrust upwardly and seal; but this ideal line cannot be thought of by itself.1 The just recited performance does not happen. Points in the line do not swing up in the arc of a circle. The central line is tied to- the remainder of the lift and when the points in it are forced up, they move vertically. The critical point at the center of the breast edge is not only the free end of the supposed longitudinal arch, which by itself might have some tendency to an upward thrust, but it is also the center or key point of the transverse arch, and any tendency of this point to be thrust upward by the flattening of the longitudinal arch toward its center is resisted, and perhaps more than counterbalanced, by the effort of the transverse arch to maintain its former shape. Which .force would prevail must depend upon the many varying elements, such as the respective depth of the arches in proportion to their length, the thickness of the lift at its various parts, the extent and character of the resiliency, etc. It would seem that the T. P. transverse arch is enough sharper than the longitudinal arch, so that the net tendency would be for the breast to remain open at this critical point; certainly nothing in the theories involved assures the contrary result; and that this is what does happen is demonstrated by the exhibits, which show that when the center of the T. P. lift is driven up completely against the heel, the breast is still open. As the attaching proceeds by driving in further nails between the center and the breast edge, there seems no sufficient reason for thinking that there is any point where this balance between the thrust and the resistance should shift so that the breast edge would come into contact before the driving point does.2 The. theoretical problem is complicated by other elements; but if possibly there is such a tendency in the edge to make contact first, it is so slight and unsubstantial as to be only the shadow and not the substance of the Tufford operative theory.

Coming to practice: Exhibits are produced consisting of lifts nailed onto boards, which are said to show equivalent results with the I. T. S. and the T. P. heels, while at the same time illustrating the failure of the Nerger to maintain a tight edge. All such exhibits must be looked at critically, and no visual impression accepted hastily.' The extent and manner of nailing are important. Each nail passes through a washer which is embedded in the rubber. The nail head is stopped by the washer, but, if the driving is continued, the rubber between the washer and the heel is compressed and this compression has an effect [797]*797upon the surrounding rubber, depending upon the unknown size of the washer and the extent of the compression. Nerger’s heels have only two nails which are on the longitudinal center line. Nerger’s edges in these exhibits are for this and perhaps other reasons not well sealed Tuiford’s theory teaches that his edges would seal; but he does not depend on Nerger’s two nails. He puts in five more, following the shape of the edge and approximately midway between the center and the edge. When we compare the sample exhibits showing the I. T. S. and the T. P. heels, we find that the nails are much nearer the breast edge and corners in the T. P. than in the corresponding size of the I. T. S. There is nothing in these exhibits to convince that the T. P.

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Bluebook (online)
288 F. 794, 1923 U.S. App. LEXIS 2222, Counsel Stack Legal Research, https://law.counselstack.com/opinion/i-t-s-co-v-tee-pee-rubber-co-ca6-1923.