Method of making an electrical device comprising a conductive polymer
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United States of America Patent
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Apr 5, 1994
Issued Date -
N/A
app pub date -
Jan 21, 1992
filing date -
Mar 13, 1989
priority date (Note) -
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Abstract
An electrical device, particularly a self-regulating strip heater, has improved thermal efficiency, good mechanical properties, and acceptable resistance to water penetration when an outer insulating layer is applied in a way that it penetrates the interstices of a braid surrounding the heater. Appropriate penetration may be achieved by pressure-extruding the outer jacket over the braid.
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