HEATING BLANKET COVER CONSTRUCTION AND METHODS OF MANUFACTURE
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United States of America Patent
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Issued Date -
Mar 29, 2007
app pub date -
Sep 29, 2006
filing date -
Sep 29, 2005
priority date (Note) -
Abandoned
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Abstract
A heating blanket cover is constructed from a lower sheet, which may include a first material layer laminated to a second material layer, and an upper sheet bonded to the lower sheet along a longitudinally extending bonding site, wherein the upper sheet extends laterally from the bonding site over the lower sheet to a free edge. The bonding site may be formed by heat sealing the upper sheet to the lower sheet. A gap between the upper sheet and the lower sheet forms an enclosure to hold the heating blanket; the enclosure is accessible by lifting the free edge of the upper sheet away from the lower sheet. A series of covers may be formed, for example by a web-manufacturing process, by bringing together at least two lengths of materials, bonding the lengths together and assembling the lengths on a roll for dispensing of individual covers from the series.
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