Manufacturing container or tube from paper; or other manufacturi – Container making – Pliable container
Reexamination Certificate
2005-01-21
2008-11-25
Gerrity, Stephen F (Department: 3721)
Manufacturing container or tube from paper; or other manufacturi
Container making
Pliable container
C053S412000, C053S133400, C053S139200, C156S066000
Reexamination Certificate
active
07455636
ABSTRACT:
An apparatus for application of zippers to film material10comprises an applicator bar22for presenting pre-cut lengths of zipper26to the film and a heated sealing bar34for sealing the pre-cut lengths to the film. The applicator bar, the sealing bar, feed rollers30a,30band a zipper cutter32are mounted for movement with the film on a linear motor14. A pneumatic cylinder18raised the application bar towards the film10. The applicator bar moves in direction C to apply the zipper to the film10moving in direction A, then moves with the sealing bar and the film in direction B, away from the film in direction C′, back to its starting position in direction B′, then towards the film again in direction C. A further length of zipper may be fed to the applicator bar at any time after the bar has moved away from the film in direction C′ and therefore during an end portion of the forward stroke of the motor, or during its return stroke.
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Day Pitney LLP
Gerrity Stephen F
Illinois Tool Works Inc.
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