Bi-stable relay

Details Bi-stable relay Bi-stable relay

1980-04-15

1981-12-22

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337 38, 337104, H01H 6106

Patent

active

043073670

ABSTRACT:
One reed of a pair of parallel reeds has a rod extending to opposite sides of the pair. A bimetallic snap disc can be heated to snap against one end of the rod and thus flex the reed to engage a contact on that reed with a contact on the other reed and thus close a circuit to be controlled. A resilient latch holds that reed in its flexed position, even after the disc cools and snaps back to its normal configuration, until a second snap disc is heated and pushes the rod and reed back to its open-contact position. A selectively operable switch serves to provide electric current to a selected one of a pair of resistance heaters, one heater being near each of the snap discs.

REFERENCES:
patent: 2002467 (1935-05-01), Blodgett
patent: 2324161 (1943-07-01), Holmes
patent: 2446831 (1948-08-01), Hottenroth, Jr.
patent: 3534314 (1970-10-01), Ellenberger

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