Hookless Fastener Co. v. Lion Fastener, Inc.

84 F.2d 579, 29 U.S.P.Q. (BNA) 559, 1936 U.S. App. LEXIS 4549
CourtCourt of Appeals for the Third Circuit
DecidedJune 9, 1936
DocketNo. 5625
StatusPublished
Cited by3 cases

This text of 84 F.2d 579 (Hookless Fastener Co. v. Lion Fastener, Inc.) is published on Counsel Stack Legal Research, covering Court of Appeals for the Third Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Hookless Fastener Co. v. Lion Fastener, Inc., 84 F.2d 579, 29 U.S.P.Q. (BNA) 559, 1936 U.S. App. LEXIS 4549 (3d Cir. 1936).

Opinion

DAVIS, Circuit Judge.

, This court in the case of Lion Fastener, Inc., v. Hookless Fastener Company, 72 F.(2d) 985, considered the questions of the validity and infringement by the Lion Fastener, Inc., the defendant-appellee here, of certain Sundback product or manufacture patents, owned by the Hookless Fastener Company, the plaintiff-appellant, for fastener stringers or what are commonly called “zipper fasteners.”

This case involves the patents for the machines used for making the fastener stringers or zippers.

The plaintiff contends that the defendant’s machine infringes its letters patent, Sundback, No. 1,331,884, and Sundback, No. 1,467,015. Claims 1, 20, 33, and 34 of the first patent, and claims 32, 33, 46, 47, and 54 of the second patent, are involved in the suit.

The machines cut, form, and attach to a corded tape, in a continuous and co-operative operation, the metal fastener members, forming the stringers of the zipper fastener.

1. The first patent in suit is Sundback, No. 1,331,884, filed March 16, 1916, patented February 24, 1920.

A continuous roll of beaded-edge tape and metal strip are fed to the machine from opposite sides, meeting each other on the path of the cord, and by the operation of the machine are converted into a continuous stringer which is later cut into proper lengths.

The flat strip of metal is fed step by step across the paths of die tools. The first tool, which has an outline shape of the member, punches from the metal strip a Y-shaped blank. The blank is pushed from the metal strip into a die underneath the metal strip and a spring pressed plunger thrusts the blank back into the opening in the metal strip from which it was punched. The metal strip acts as a holding and transfer device for the blank and the fastener element which is formed from the blank by the operation of the machine. The metal strip, holding the blank, is propelled forward another step to a point where another overhead tool knocks out the scrap metal left between the blank and the point where the next blank is punched. [581]*581The metal strip is thus severed into two scrap strips, but the blank is still held in its form and is advanced forwardly to a point where the next punch forms the head of the member from the blank by making a projection and a corresponding depression in the head of the blank. During this operation the blank is held in position by side guides over a co-operating female die. The element is then completed.

The finished member is carried forward in the grasp of the waste strips to the beaded-edge tape, which is brought up from the roll below the machine and edgewise between the strips of scrap metal.

Side punches squeeze the jaws of the member, by, acting on the surrounding scrap' metal strips, toward each other on the edge of the tape.

The tape and the metal strip are advanced a step after each clamping operation in order to bring the machine into position to carry out its operating function.

2. The second patent in suit is Sundback, No. 1,467,015, filed July 10, 1919; patented September 4, 1923.

This patent describes an improved machine for manufacturing fasteners.

Instead of using a flat strip of metal from which blanks are punched, the machine slices the blanks from a pre-shaped metal stock having the same cross-section as the blanks.

As the metal stock is thrust upwardly, a cutting tool passes over its end, shaving the blank from the stock, and transferring the severed blank to a die mounted in the periphery of a rotary circular dial or table. The blank is held in the die while a punch, co-operating with the die, forms the projection and depression in the head of the member. The dial is rotated a quarter turn to bring another die into position to receive the next blank severed.

Opposite the cutting tool and punch and in the periphery of the dial, the beaded tape is inserted between the jaws of clamping elements. As the dial rotates, it brings with each movement a die with a finished element into position where the extended jaws of the element may be clamped over the head on the tape by the transverse movement of the clamping elements.

Thus, each time the dial is rotated by the movement of a ratchet positioned on the axle of the dial, a blank is inserted in the die and shaped by the punch and a finished member is clamped on the tape. Proper mechanisms intermittently advance the tape upwardly, remove the clamped member from the die, and bring the tape into position between the open jaws of the next formed member to be attached to the tape.

3. The defendant’s machine:

The plaintiff contends that the defendant’s machine is a combination of the features of the first and second patents in suit. The defendant’s machine produces a stringer similar to that of the plaintiff.

A flat metal stock is fed continuously to the defendant’s machine. An overhead punch cuts the Y-shaped blanks from the stock as it advances. Simultaneously, the punch transfers the cut-out blank to a die directly beneath it on a dial similar to that of the second patent in suit. The dial is rotated a quarter turn and at that point an overhead punch forms the projection and recess in the head of the blank. The dial is rotated another quarter turn to bring the member opposite the beaded tape which moves upwardly between the extended jaws of the member. The jaws are clamped on the tape by the transverse action of clamping elements located adjacently to the periphery of the dial. The tape is moved slightly outward by the kick of inserts loosening the fasteners in the die and is fed upwardly a step to make way for the next fastener.

The first Sundback patent in suit has been the subject of prior litigation. In the Exchequer Court of Canada, the first patent was held valid and infringed. The Supreme Court of Canada held that the prior art limited the claims to the particular structure described, and when so limited, the patent was not infringed. On an appeal to the Judicial Committee of the Privy Council, the judgment of the Exchequer Court of Canada was restored. Lightning Fastener Co., Ld., v. Colonial Fastener Co., Ld. (1934) 3 Dominion Law Reports, p. 737.

The District Court for the District of Connecticut held the first patent valid and infringed. It limited the claims to an automatic machine for making slide fasteners and held that this was new in the art and that claims 1, 36, 37, 42, and 46 were valid and infringed; while claims 34 and 38 were invalid. The Court of Appeals for the Second Circuit reversed the decree, holding that the claims required a narrow construction, and, so construed, the claims [582]*582were valid but not infringed. Hookless Fastener Company v. G. E. Prentice Manufacturing Company, 68 F.(2d) 848, 850.

After that decision, the plaintiff filed disclaimers to both patents. The disclaimers limited the claims of the patents specifically to machines designed to make slide fasteners.

The District Court, in the case before us, after stating that it would follow the decisions of the Circuit Court of Appeals for the Second Circuit and the Supreme Court of Canada, held that the defendant’s machine does not infringe the patents in suit as originally drawn and that the disclaimers filed by the plaintiff are not effective to save the broad claims of the patents and, in fact, are not within the disclaimer statute.

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84 F.2d 579, 29 U.S.P.Q. (BNA) 559, 1936 U.S. App. LEXIS 4549, Counsel Stack Legal Research, https://law.counselstack.com/opinion/hookless-fastener-co-v-lion-fastener-inc-ca3-1936.