Formable thermoplastic laminate heated element assembly
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United States of America Patent
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N/A
Issued Date -
Jul 3, 2003
app pub date -
Dec 18, 2002
filing date -
Aug 18, 2000
priority date (Note) -
Abandoned
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Abstract
A semi-rigid heated element assembly and method of manufacturing semi-rigid heated element assemblies is provided. A heated element assembly includes a first thermoplastic sheet, a second thermoplastic sheet, and a resistance heating element laminated between the first and second thermoplastic sheets. The resistance heating element includes a supporting substrate having a first surface thereon and an electrical resistance heating material forming a predetermined circuit path having a pair of terminal end portions. The circuit path continues onto at least one flap portion that is capable of rotating about a first axis of rotation. The reformable continuous element structure may be formed into a final element assembly configuration whereby at least the flap portion is rotated along its axis of rotation to provide resistance heating in at least two planes. Semi-rigid heating elements may be formed into heated containers, heated bags, and other objects with complex heat planes.
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