E. J. Brooks Co. v. Klein

114 F.2d 955, 46 U.S.P.Q. (BNA) 537, 1940 U.S. App. LEXIS 3246
Court of Appeals for the Third Circuit·Decided September 17, 1940·No. No. 7241·Published·Cited by 12 cases

Opinion

JONES, Circuit Judge.

This is a suit for the alleged infringement of a patent, being United States No. 1,789,-236, issued to Klein and Kasanof on January 13, 1931, and thereafter assigned to Klein, the plaintiff-appellee herein.

The subject of the patent is a seal consisting of a small metal device for fastening the cord of a pendent price tag to clothing or garments so that the tag may not be removed surreptitiously without mutilating the cord, the garment or the seal. Seals which serve the purpose described are useful to retail merchants who do business on a large scale and, especially, in stores which are operated on the principle of self-service where customary sales people are dispensed with. The seal serves to protect the seller against the unauthorized removal or substitution of price tags while the articles are yet in the store before sale and, elsewhere, until the customer’s final acceptance of the purchase. It is essential that the seal be inexpensive to manufacture, easy to adjust to the price tag cord and effective as a guard against tampering.

The patent in suit calls for a seal stamped from a single piece of light metal into two jaws or shells, the one telescopable into the other and joined by a narrow strip of metal which serves as a hinge in the manner of a bivalve. The jaws are correspondingly tapered toward the hinge end so that when they are closed, after being pressed together with the hinge as an axis, the seal has a wedge-shaped conformation with the thin edge at the hinge or folded strip. On the inside of each of the jaws at the end opposite the hinge, there are lateral flanges which, by ineracting one with the other when the jaws are pressed together, lock automatically. The flanges slip past each other under tension and, when they have overlapped, their own spring [956]*956action causes them to hook together. The knot tying the ends of the cord by which the tag is suspended is placed between the open jaws and rests within the chamber formed by the jaws when closed, the looped cord passing out of the seal at either side of the hinge which firmly grips the- cord. The patent in suit (herein referred to as the Klein patent) allows three claims of invention, each of which the plaintiff charges the defendant with infringing.

The defendant’s alleged infringing structure is a seal, made in accordance with a later patent, being United States No. 1,982,-783, issued to one W. M. Brooks. Under the Brooks patent the seal is also stamped from a single piece of metal into two jaws, the one telescopable into the other and both joined by a narrow strip of the metal which acts as a hinge 'when the jaws are pressed together for their closed position. .Each jaw is slightly curved concavely with relation to their being pressed together, so that when the jaws are closed the seal presents a thin edge at either end and the sides of the closed seal have an ovoid or elliptical shape. The knot tying the two ends of the tag cord rests in the chamber formed by the closed jaws and the cord passes out of the seal at either side of the hinge. The locking engagement of the jaws in the defendant’s structure is accomplished by friction. At the free -end of one of the jaws is a projection of tongue which.curves inwardly toward the jaw. The sides of the other jaw at its free end are slightly indented to form a • groove or slot into which the curved tongue at the end of the other jaw fits when the two jaws are pressed together. In the latter operation, the curved tongue, which is frangible, conforms itself to the inside of the top of the slotted jaw.

The court below held that each of the three claims of the Klein patent is valid and that each is infringed by the defendant’s seal. In so holding, the court below expressly based its action on the decision of the Circuit Court of Appeals for the Second Circuit in Klein v. American Casting & Mfg. Corp., 87 F.2d 291. The court also referred to the opinion of this court in International Seal & Knot Protector Co. v. E. J. Brooks Co., 98 F.2d 647, where, as the court below conceived, the patent now in suit was considered. However, the Klein patent was considered in the International Seal case, supra, only to the extent that it evidenced anticipation of the patent there involved (Keidel patent, United States No. 1,783,938) whose invalidity, as found by the District Court in that case, this court was then affirming. It would indeed be going far beyond the competent intendment of the decision in the International Seal case, supra, to say that this court had, even impliedly, there sustained the Klein patent. Aerovox Corp. v. Cornell-Dubilier Corp., 2 Cir., 108 F.2d 749, 752. The Klein patent was not in suit in the International Seal case and its validity was therefore not passed upon either directly or indirectly. It served merely as an exemplification of the prior art, as did also another patent (Behr-man Patent, United States No. 1,791,342).

In view of the prior art, it is very slight invention, if any, that the Klein patent presents. A seal stamped from a single piece of metal into two shells or jaws joined by a narrow integral strip, which also acts as a hinge in the rotation of the jaws to a closed position where they are automatically locked by spring action of tangential parts, had long been known when the Klein patent was applied for. The Bell patent, United States No. 1,160,034, issued in 1915 and the British patent to Fusa (No. 9,285 of 1910) both embodied that principle. Klein’s effort, therefore, could, at best, be little more than mechanical adjustment or change in the application of the art priorly disclosed. Nor is there any evidence in the case that the Bell and Fusa patents were found wanting or that they could not, readily and economically, have been made useful and serviceable.

So far as the Klein patent indicates, Bell and Fusa had left little, if anything, for Klein’s discovery. In such circumstances, any possible invention in the Klein patent could represent at most no more than improvement upon the prior art. It was, therefore, peculiarly incumbent upon Klein as a patent applicant to state plainly and specifically what he claimed to be new and to be his invention. General Electric Co. v. Wabash Appliance Corp. et al., 304 U.S. 364, 368, 369, 58 S.Ct. 899, 82 L.Ed. 1402. This brings us to a consideration of the claims upon which Klein relies.

Claim 1 reads as follows: “A seal for a tie member comprising a pair of tapering jaws hinged together at their tapered ends and forming complementary telscopable portions of a chamber when brought together with the portions of the jaw adjacent the hinge in close association, the jaws being adapted to receive the tie member between them when open and to clamp said [957]*957member along the lines of the hinge and between the adjacent portions of the jaws, and means within said chamber for automatically locking the jaws together ill an inseparable manner.”

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E. J. Brooks Co. v. Klein, 114 F.2d 955, 46 U.S.P.Q. (BNA) 537, 1940 U.S. App. LEXIS 3246 (3d Cir. 1940).

114 F.2d 955 (E. J. Brooks Co. v. Klein) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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