Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – With bimetallic elements
Patent
1984-05-07
1985-05-21
Broome, Harold
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
With bimetallic elements
200153M, H01H 7116
Patent
active
045189439
ABSTRACT:
A bimetallic circuit breaker with a first or main set of movable and stationary contacts. The circuit breaker includes an electrical insulating slide restrained in one position by the movable contact and interposed between the contacts when these contacts are in the open position. The slide is carried by an insulator frame received within a housing of electrical insulating material. The frame is provided with a second or auxiliary set of movable and stationary contacts. The slide is positioned relative to the auxiliary contacts so that it keeps the auxiliary movable contact separated from the corresponding stationary auxiliary contact. When the bimetal flexes sufficiently, the slide is released and the main contacts open, and at such times the slide moves away from the auxiliary movable contact, permitting the auxiliary contacts to close for signalling, at a remote location, the opening of the main contacts. The circuit breaker includes a case having an end wall. The main set of contacts are carried by a pair of main terminals which extend through the end wall. The main terminals are disposed parallel to each other. The auxiliary movable contact is carried by an auxiliary terminal which is disposed at right angles to the main terminals and intermediate the main terminals.
REFERENCES:
patent: 3361888 (1968-01-01), Brackett
patent: 3772484 (1973-11-01), Roeser
Broome Harold
Dorfman John C.
Heinemann Electric Company
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