Unit operations on a web with attached zipper and method of performing the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Aug 24, 2010
Grant Date -
May 21, 2009
app pub date -
Jan 21, 2009
filing date -
Feb 21, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A unit operation station for use in a web processing machine comprising: a shuttle system including an input roller for receiving a web and an attached zipper, an output roller and a the connecting element for maintaining the input roller and the output roller in a fixed position relative to each other; a plurality of stations performing distinct operations for mechanically altering the attached zipper, one of the plurality of stations including a slider-insertion mechanism for placing a slider onto the zipper; a web path located beyond the input roller and including the plurality of stations; a driver for providing reciprocating movement to the shuttle system to cause intermittent movement of the web and the attached zipper along the web path; wherein the output roller releases the web and the attached zipper at a rate substantially equal to a continuous input feed rate of the web and the attached zipper, and wherein the shuttle system moves at a speed substantially equal to the continuous input/output feed rate of the web as it enters and exits the plurality of stations.
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