The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 26, 1977
Filed:
Aug. 28, 1975
Elwood R Horwinski, Cheshire, CT (US);
Product Concepts, Inc., Middlebury, CT (US);
Abstract
An internally illuminated switch plate for providing visual indications of the on-off condition of an electrical wall switch. The plate comprises a wall plate in the form of a flat slab adapted to overlie the wall fixture and constituted of material which conducts light. A small recess in the rear surface carries a neon glow lamp, and a second recess carries a resistor. The glow lamp and resistor are connected in series, and this assemblage in turn connected across the terminals of the switch. Connections to the neon lamp and resistor are made via tracks of conductive paint disposed in grooves in the rear surface of the slab. The tracks extend to two terminals of the slab, from which flexible leads are run to terminals of the switch. The arrangement is such that when the switch is off, the lamp is energized by the voltage normally appearing across the switch terminals, to thus provide a visual indication of the on-off condition of the switch.