Switch cover plate providing automatic emergency lighting

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

1997-04-25

1998-11-10

Cariaso, Alan

Illumination

With switch plate or socket

362 20, 200312, 200317, F21V 3300

Patent

active

058333509

ABSTRACT:
A wall switch cover plate conceals an electrical circuit capable of sensing the field provided by the covered switch circuit. When power is lost at the switch 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.

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patent: 5336977 (1994-08-01), Li
patent: 5473517 (1995-12-01), Blackman

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