Apparatus for and method of positioning a slider on mating zipper elements
AssigneeS.C. Johnson Home Storage, Inc.
InventorsClark Woody, Jeffrey S. Hoffman
Life of this patent
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Abstract
An apparatus used in the manufacture of a thermoplastic zipper having a slider mounted thereon includes a pair of clamp arms disposed on opposing sides of a path of the zipper. The clamp arms are movable in directions substantially perpendicular to the zipper path so as to clamp the thermoplastic zipper to fuse a length thereof. A pair of fingers is disposed on opposing sides of the zipper path. The fingers are movable in directions substantially perpendicular to the zipper path and in directions substantially parallel with the zipper path relative to the clamp arms. The fingers push the slider along the zipper.
Claims13
An apparatus used in a process of manufacturing a thermoplastic zipper, the apparatus comprising:
- a pair of press members mounted on opposing blocks that are configured for placement on opposite sides of a thermoplastic zipper;
- a first set of biasing springs that bias the pair of press members away from each other and a thermoplastic zipper disposed therebetween;
- a pair of fingers mounted on opposing finger mounts that are configured for placement on opposite sides of a thermoplastic zipper, the pair of fingers configured to push a mounted slider along a thermoplastic zipper;
- a second set of biasing springs that bias the pair of fingers away from the pair of press members;
- and
- a third set of biasing springs that bias the pair of fingers toward each other and a thermoplastic zipper disposed therebetween;
- wherein the pair of press members is configured to clamp a thermoplastic zipper to form an end thereof.
Dependencies are inferred from the claim text.