Power control relay for electrical outlets which maintains posit

Details Power control relay for electrical outlets which maintains posit Power control relay for electrical outlets which maintains posit

1990-09-27

1991-12-10

Scott, J. R.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

335177, H01H 4700, H01H 900

Patent

active

050723286

ABSTRACT:
A power control relay has a pair of solenoids one of which is briefly energized to open a pair of contacts and the other is opened briefly to close the contacts. A mechanical linkage maintains the contacts in their closed and open positions in the absence of solenoid energization. In a preferred embodiment of the invention, the solenoids drive a cam back and forth between two stable positions. The cam toggles an arm which opens and closes the power switch contacts.

REFERENCES:
patent: 3418488 (1968-12-01), Platzer
patent: 3600637 (1971-08-01), Bergkvist
patent: 4341556 (1982-07-01), Bohm et al.
patent: 4630166 (1986-12-01), D'Onofrio

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