Interlocking closure device

Details Interlocking closure device Interlocking closure device

Filed on

2005-10-11

Date issued

2005-10-11

Examiner

Eashoo, Mark (Department: 1732)

Patent Class

Plastic and nonmetallic article shaping or treating: processes

SubClass

Forming continuous or indefinite length work

SubSubClass

Shaping by extrusion

Other Related Categories

C264S286000

Type

Reexamination Certificate

Status

active

Patent number

06953542

Description

ABSTRACT:
A closure device for a thermoplastic bag which includes two opposing, longitudinally extending interlockable male and female fastening strips having respective male and female closure elements or profiles that are deformed to interdigitate and produce an audible clicking sound and or tactile effect that is perceptible to the touch as the closure device is opened and closed. Interdigitation of the two profiles is achieved by cold forming the profiles while interlocked. The shape of the cold form is a stepped deflection of both profiles so that their shapes are generally congruent. The stepped deflections provide a change in the occlusion and peel force of the interlocking closure device thereby resulting in an audible clicking or popping sound as the closure device is opened and closed and a tactile effect that is perceptible to the touch as the closure device is closed.

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