Sunbeam Corporation Limited

Gordon S Carlson

George C Crowley

Michael Woznicki

A non-resettable water actuated circuit interrupting means for use with a portable electric appliance such as a hair dryer to provide protection for the user against injury in the event that the appliance is accidentally dropped in water or otherwise develops leakage current. Both sides of the line are fused and circuit means are provided which respond to leakage current in the appliance to provide separate circuits to blow out each of the fuses.

Protective circuit for portable electric appliances

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 conductor wires. The circuit includes one or more gas tubes with parallel resistances connected across the conductor wires to sense voltage changes caused by open or short circuits and to conduct sufficiently high currents to blow a series connected fuse.

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Northbrook, IL, United States of America

Gordon S Carlson