ELECTRICAL HEATING ELEMENT
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United States of America Patent
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Issued Date -
Dec 24, 2009
app pub date -
Jan 25, 2007
filing date -
Apr 8, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electrical heating element, in particular for a hot-wedge film welding device, having two electrodes and a heating resistor arranged between the electrodes such that an application of an electrical voltage to the electrodes results in heat being produced along the length of the heating resistor. The heating resistor is designed to correspond to the shape of a heating wedge of a film welding machine, such that it can replace the heating cartridge and the hot wedge of a conventional film welding device. It is preferably produced from a conductive ceramic material and is distinguished by uniform heat distribution, good thermal conductivity and resistance to wear, as well as by excellent corrosion resistance.
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