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:
Dec. 21, 1976
Filed:
Apr. 07, 1975
Applicant:
Inventors:
Assignee:
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
3402 / ; 3402 / ; 340331 ;
Abstract
An indicator light circuit utilizing a single lamp and providing continuous illumination during normal operation and on and off flashing during an emergency condition. The circuit can also provide an indication wherein the lamp is continuously on but pulsating bright and dim. The indicator light circuit can thus provide four visual indications: (1) Off; (2) Normal on; (3) Flashing on and off; and, (4) On, but pulsating bright and dim. The invention is particularly adaptable for use to provide motor running and relay trip indication.