Apparatus for applying reclosable fasteners to a web of film
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United States of America Patent
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-
Dec 21, 1999
Grant Date -
N/A
app pub date -
Jul 17, 1997
filing date -
Jul 17, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus for applying strip fastener elements or zippers to web material includes an unwind stand holding a roll of film material, an infeed dancer arrangement of rollers, a zipper apparatus which conditions zipper material, cuts zippers and delivers zippers to a zipper feed apparatus. The zipper feed apparatus loads zippers into a sealing platen of a rotating turret. The rotating turret carries the zippers successively to a position adjacent a surface of the film and a seal bar presses the film to successive zippers to seal the zippers thereto while a new zipper is being received in a sealing platen of the turret at a loading station at a rotational position at a distance from the sealing station. The film with zippers attached is drawn downstream of the turret to a rewind dancer roll assembly and thereafter to a rewind stand for winding into a roll of zippered film.
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