David C Russo

US Patent:

56347103, Jun 3, 1997

Filed:

Jul 18, 1996

Appl. No.:

8/683086

Inventors:

David Di Russo - San Leandro CA
Kenneth Tarlow - Corte Madera CA

International Classification:

E05B 1710

US Classification:

362100

Abstract:

An improved key hole light which can be easily added to an existing door lock or ignition switch whose illuminating element is an electroluminescent panel which is die cut into a flat doughnut shaped pattern. The inside of the pattern is the size of a standard key hole area of about one half of one inch and the outside diameter of the panel is about one inch. A two inch long tail portion is integral with the doughnut shape which allows the flexible light display to be bent and adhered to the contours of a lock assembly or door knob assembly. An extendible pair of coated wires attach the light display to an electronic module which contains a power supply, a timer circuit and a high voltage transformer. A conductive switch panel is connected by two wires to the electronic module. When a person touches his or her finger to any portion of the conductive switch panel it causes the light display to illuminate for approximately ten seconds and then automatically turn off.