(under subclass 510) Subject matter wherein the thermally responsive means comprises fusible material. The material may be either directly in the electrical circuit so that upon fusing it opens the circuit directly or may comprise some securing device which upon fusing allows a circuit completion means to open or close.
SEE OR SEARCH THIS CLASS, SUBCLASS:
253, for electric flatiron type devices with thermally responsive fusible means in the power supply circuit.
SEE OR SEARCH CLASS
200, Electricity: Circuit Makers and Breakers,
61.08, for circuit breakers of the frangible or destructible type.
337, Electricity: Electrothermally or Thermally Actuated Switches, 142+, and 401+ for electrothermal and thermally actuated switches utilizing fusible material.
