06594872 is referenced by 71 patents.

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.

Title
Interlocking closure device
Application Number
9/932742
Publication Number
6594872 (B2)
Application Date
August 17, 2001
Publication Date
July 22, 2003
Inventor
Ronald J Cisek
Hinsdale
IL, US
Agent
Thomas C Feix
US
Assignee
The Glad Products Company
CA, US
IPC
A44B 17/00
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