Switch cover plate providing automatic emergency lighting

Details Switch cover plate providing automatic emergency lighting Switch cover plate providing automatic emergency lighting

1998-02-27

1999-12-14

Cariaso, Alan

Illumination

With switch plate or socket

362 20, 362 85, 362234, 307 66, 315 86, F21V 2304, H05B 3704

Patent

active

060008075

ABSTRACT:
A wall mounted cover plate conceals an electrical circuit capable of sensing the field provided by a covered switch or electrical socket circuit. When power is lost at the wall circuit the electrical circuit senses the loss of power and activates one or more LEDs to provide emergency illumination. The electrical circuit is self contained and does not require stand-by energy so that the batteries are long lasting.

REFERENCES:
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patent: 3739226 (1973-06-01), Seiter et al.
patent: 4177500 (1979-12-01), Nichdl et al.
patent: 4461974 (1984-07-01), Chiu
patent: 4514789 (1985-04-01), Jester
patent: 4631649 (1986-12-01), McCue et al.
patent: 4977351 (1990-12-01), Bavaro et al.
patent: 5132596 (1992-07-01), Walters et al.
patent: 5336977 (1994-08-01), Li
patent: 5473517 (1995-12-01), Blackman

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