Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Patent
1991-09-12
1992-11-10
Hoff, Marc
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
For relays or solenoids
307117, 359225, H01H 4724
Patent
active
051629682
ABSTRACT:
The present invention teaches a control system wherein fiber optics controls the functioning of one or more types of wiring devices, such as a wall receptacle. With the use of the present invention, a relatively safer system is provided for use in wet, hospital, explosive and other environments, and which is capable of surface mounting. Switch and load supply assemblies are interconnected by fiber optic means for transmitting reflected signals from a movable mirror to a photocell-influenced relay circuit.
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patent: 3881106 (1975-04-01), Pocker et al.
patent: 3931514 (1976-01-01), Patterson
patent: 4324981 (1982-04-01), Miller
patent: 4352046 (1982-09-01), Tigner et al.
patent: 4704656 (1987-11-01), Neiger
Hoff Marc
Leviton Manufacturing Company, Inc.
Sutton Paul J.
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