Snap-acting thermal relay

Details Snap-acting thermal relay Snap-acting thermal relay

1981-03-31

1984-02-28

Harris, George

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337107, 337141, H01H 6104

Patent

active

044344147

ABSTRACT:
A thermally operated snap-acting switch uses a switch arm and tension spring for rotating the switch arm. A thermal-responsive element moves the pivot of theswitch arm relative to the centerline of the spring to actuate the switch. Heater means activates the thermal-responsive element for operating the switch.

REFERENCES:
patent: 2080244 (1937-05-01), Weirich
patent: 3242292 (1966-03-01), Malone
patent: 3611236 (1971-10-01), Randolph
patent: 4088976 (1978-05-01), Bell

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