H - Electricity – 05 – B
Patent
H - Electricity
05
B
309/14, 341/31
H05B 3/34 (2006.01) H02H 3/04 (2006.01) H02H 5/04 (2006.01)
Patent
CA 1077111
Abstract of the Disclosure An electric blanket control circuit is provided which includes an overheat protection circuit to detect an overheat condition as well as a fail- safe testing circuit to assure that the electrical components in said overheat protection circuit are properly functioning. A simulation circuit is provided to electrically simulate an overheat condition in the blanket. An on-off switch is provided which will consecutively activate the overheat simulation circuit and then the fail-safe testing circuit so that said circuits are activated each time the electric blanket is turned off by the user.
260151
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