Blister packaging system and method
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United States of America Patent
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-
Jan 10, 1995
Issued Date -
N/A
app pub date -
Aug 25, 1993
filing date -
Apr 17, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A blister packaging system and method which includes a preheat station, a cold seal press station, and a trimming station to provide a blister-type cold seal bonded blister package. The method comprises feeding the adjacent sheets of thermoplastic material to a preheat station and preheating selected sections, usually edge areas, of the plastic material for very short periods of time to a tacky or melt temperature, thereafter cold pressing the preheated sections under pressure at a temperature of less than 60.degree. F. to cold bond seal the preheated sections, and thereafter optionally to trim the cold bonded thermoplastic sheet material to a finished size and recovering a blister, cold-bonded package.
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