Michael Jester

US Patent:

45147892, Apr 30, 1985

Filed:

Mar 7, 1984

Appl. No.:

6/587049

Inventors:

Michael H. Jester - San Diego CA

International Classification:

F21V 3300

US Classification:

362 95

Abstract:

A light switch plate having a rearwardly opening housing for removably holding an AA battery is detachably mountable over a conventional wall mounted 110 volt AC light switch. An LED mounted on the front of the housing is connected to the battery through an integrated circuit oscillator which flashes the LED. A phototransistor is also mounted on the front of the housing and is connected in the circuit for disabling the flashing of the LED except when the room is dark. The flashing LED provides an eye catching signal so that a person can more readily locate the light switch in the dark. The circuit has extremely lower current drain on the battery permitting operation for a year without requiring battery replacement.