Electric blanket control circuit

Details Electric blanket control circuit Electric blanket control circuit

1975-09-02

1977-07-05

Hickey, Robert J.

Electric heating

Heating devices

Combined with diverse-type art device

219494, 361103, H02H 102, H05B 334

Patent

active

040341852

ABSTRACT:
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.

REFERENCES:
patent: 3418454 (1968-12-01), Ryckman, Jr.
patent: 3594788 (1971-07-01), Seelig
patent: 3628093 (1971-12-01), Crowley
patent: 3673381 (1972-06-01), Crowley et al.

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