Safety shutoff device for a stove

Details Safety shutoff device for a stove Safety shutoff device for a stove

1987-09-02

1988-10-04

Hix, L. T.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

361189, 340655, 219519, H01H 4712

Patent

active

047759135

ABSTRACT:
A control device for controlling the operation of an object of cooking such as a stove or the like. The presence of a user in the area of the stove is detected. When the user is present, the stove operation is enabled. After the user has been absent from the area for a first predetermined time, the stove is temporarily disabled, an again enabled when the user enters the area. If the user is absent from the area of the stove for a second predetermined time, the stove is permanently disabled, so that it cannot again be enabled until manually reset.

REFERENCES:
patent: 3670167 (1972-06-01), Forbes
patent: 3858192 (1974-08-01), Fischer
patent: 3958118 (1976-05-01), Schwarz
patent: 4029176 (1977-06-01), Mills
patent: 4031408 (1977-06-01), Holz
patent: 4179691 (1979-12-01), Keller
patent: 4346427 (1982-08-01), Blissett
patent: 4366366 (1982-12-01), Ekblad
patent: 4375034 (1983-02-01), Guscott
patent: 4377808 (1983-03-01), Kao
patent: 4412268 (1983-10-01), Dassow
patent: 4433328 (1984-02-01), Saphir

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