Apparatus and process for forming and applying a profile and adj

Details Apparatus and process for forming and applying a profile and adj Apparatus and process for forming and applying a profile and adj

1986-10-20

1988-05-03

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

15624411, 15624425, 15624427, 156500, 383 63, 383 65, B29C 4704

Patent

active

047417897

ABSTRACT:
A method and apparatus are provided for applying a profile with adjacent ribs to a traveling film web to form an adjacent rib-type zipper. The device includes a first extruder for extruding a base member, and a mechanism for joining the base member to a bag film web. A second extruder is provided for extruding a male profile member, a first rib member and a second rib member as three separate extrudates. The extruder is configured for joining the profile member, first rib member and second rib member to the bag film in an aligned relation such that the profile member is disposed between the first and second rib members.

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