Web registration system and method
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United States of America Patent
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-
Nov 28, 1995
Grant Date -
N/A
app pub date -
Sep 9, 1992
filing date -
Sep 9, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system and method in the manufacture of plastic bags for accurately registering a web having graphic material printed repetitively thereon with respect to a transverse cutting and sealing device comprise detecting the passage of an eyemark printed on the web by a certain location at an initial part of a web index, calculating the initial length travelled by the web from the start of the web index to the detection of the eyemark, and then adjusting a predetermined draw length of the web based upon that calculated initial length.
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Family
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Cited Art Landscape
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