Process of making a zipper for a reclosable thermoplastic bag
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 8, 2000
Issued Date -
N/A
app pub date -
Sep 30, 1997
filing date -
Mar 9, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is a zipper for a reclosable thermoplastic bag having opposing rib and groove profiles wherein at least one of the opposing zipper profiles has an longitudinally extending part interlockable and substantially free of interdigitation with the opposing profile and wherein the part is structurally discontinuous along its length. When the rib and groove profiles are interlocked, an audible clicking sound and/or a vibratory or bumpy feel perceptible to the touch is imparted. Further disclosed is a process and apparatus for making the zipper wherein a zipper profile is extruded and indentions are formed within and along it.
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