PROFILED HEAT SEALER AND METHODS FOR SHAPED SEALS
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United States of America Patent
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N/A
Issued Date -
May 24, 2012
app pub date -
Nov 23, 2011
filing date -
Nov 24, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Web sealing apparatus includes a shaped sealing unit where the shape on one side of the element corresponds to a desired seal pattern in a multiple ply web and a heating element secured to another side of the sealing element, where the heating element is oriented to provide more heat energy to a portion of the sealing element corresponding to a desired seal pattern in one multiple ply portion of said web and less heat energy to a portion of the sealing element corresponding to a desired seal pattern in another portion of said web of fewer plies, The invention includes structure for adjusting the radial position of sealing units on a rotatable drum sealer. Multiple sealing units are adjustably mounted on a sealing drum or wheel for applying varied parameter seals in multiple-ply webs wrapped about said drum in contact with said sealing units. Methods are disclosed.
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Family
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Cited Art Landscape
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