Electric heating blanket or pad
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United States of America Patent
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Nov 24, 2020
Grant Date -
Nov 12, 2015
app pub date -
Jul 17, 2015
filing date -
Mar 19, 2007
priority date (Note) -
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Abstract
An electric blanket or pad for warming a living body including a flexible sheet-like heating element including an upper edge, a lower edge, and at least two side edges. A shell formed of layers of flexible sheets covering the heating element and sealed with a weld. The weld coupling the sheets of the shell about the edges to hermetically seal the heating element therebetween. The weld may be an RF weld, ultrasonic weld, or a heat bond, wherein the sheets comprise PVC.
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