Tube spreader for removing wrinkles in tube stock
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United States of America Patent
Stats
-
May 16, 1989
Grant Date -
N/A
app pub date -
Dec 7, 1987
filing date -
Dec 7, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved tube spreader for flattening and removing wrinkles from a bag film web in a form, fill, and seal packaging machine is provided. The tube spreader includes a plurality of clamping fingers which grasp a first edge of the bag film and a spreader bar, located within the bag film, and adapted to exert a lateral force on the opposite edge of the film to eliminate and remove wrinkles prior to the film being sealed.
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