Current driven actuator with coupled thermal and magnetic actuat

Details Current driven actuator with coupled thermal and magnetic actuat Current driven actuator with coupled thermal and magnetic actuat

1991-01-24

1992-04-21

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

337140, H01H 7118, H01H 7512, H01H 6106

Patent

active

051072351

ABSTRACT:
An electric current responsive actuator has a thermally responsive force generator and an electromagnetically responsive force generator. The force generators are coupled together to produce a resultant force on a movable trip actuator. In the preferred specific embodiment of the invention, a shape-memory alloy element serves as the thermally responsive force generator.

REFERENCES:
patent: 4275370 (1981-06-01), Sims

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