Electric blanket safety circuit

Details Electric blanket safety circuit Electric blanket safety circuit

H - Electricity

05

B

309/14, 309/85

H05B 1/02 (2006.01) H02H 3/02 (2006.01) H02H 5/04 (2006.01) H05B 3/34 (2006.01) H05B 3/56 (2006.01) H02H 5/10 (2006.01)

Patent

CA 1193639

Abstract of the Disclosure A safety circuit for deenergizing an electric blanket of the type utilizing a positive coefficient resistance material as the heating element positioned between a pair of spaced con- ductor wires, The circuit includes one or more gas tubes with parallel resistances connected across said conductor wires to sense voltage changes caused by open or short circuits and to conduct sufficiently high currents to blow a series connected fuse.

413829

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