Zipper applicator

Manufacturing container or tube from paper; or other manufacturi – Assembling or disassembling of distinct members – Comprising bringing two members together

Reexamination Certificate

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Details

C493S213000, C493S214000, C493S927000, C053S133400, C053S139200

Reexamination Certificate

active

06840897

ABSTRACT:
An apparatus and method for engaging both profiles (18, 20) of an interlocked zipper (12) as the zipper or fastener strip is guided onto a supply of thermoplastic film (16) used to make a reclosable bag. A first interlocked profile (18) of the zipper is engaged by at least one roller (24, 26, 36, 38, 40, 42, 44) of the roller-type applicator (10). A disc (28) mechanically attached to an end section of at least one of the rollers engages a web (22) of the second interlocked profile (20) that extends beyond the width of a web of the first profile (18). By their attachment, the disc (28) and the roller move the profiles (18, 20) at the same speed so that the profiles remain aligned as they are moved through the zipper guide (14). The zipper (12) is then attached to a surface of the thermoplastic film (16) used to make the reclosable bag.

REFERENCES:
patent: 4355494 (1982-10-01), Tilman
patent: 4709533 (1987-12-01), Ausnit
patent: 4812074 (1989-03-01), Ausnit et al.
patent: 4909017 (1990-03-01), McMahon et al.
patent: 5400568 (1995-03-01), Kanemitsu et al.
patent: 6044621 (2000-04-01), Malin et al.
patent: 6099451 (2000-08-01), Mulder et al.
patent: 6131370 (2000-10-01), Ausnit
patent: 6350340 (2002-02-01), Johnson
patent: 6553740 (2003-04-01), Delisle
patent: 6640519 (2003-11-01), Goodwin
patent: 6656297 (2003-12-01), Schneider et al.

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