H - Electricity – 05 – B
Patent
H - Electricity
05
B
356/107, 309/97
H05B 1/00 (2006.01) H01C 1/028 (2006.01) H01C 7/02 (2006.01) H05B 3/02 (2006.01) H05B 3/14 (2006.01) H05B 3/40 (2006.01) H05B 3/44 (2006.01) H05B 3/48 (2006.01)
Patent
CA 1111093
ABSTRACT: Self-regulating heating element comprising one or more positive temperature coefficient resistor bodies embedded in a heat-conductive potting composition sur- rounded by a heat conductive casing. In order to prevent occurrence of explosions in the potting composition, one or more channels are positioned in it within a heat- effective distance from said resistor body, an end of said channel or channels being situated at the surface of the potting composition open to the atmosphere. - 12 -
296059
Belhomme Charles J.g.
Van Bokestal Andre M.a.
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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