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:
Mar. 08, 1977
Filed:
Aug. 28, 1975
Applicant:
Inventor:
James N Seib, Williams, IN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; H05B / ;
U.S. Cl.
CPC ...
315361 ; 307115 ; 3072 / ; 315362 ; 307216 ;
Abstract
A circuit is disclosed which is suitable for controlling lighting in a building from a multiple number of points. AC current to light bulbs is controlled by a triac which in turn is controlled by the output of a series of exclusive OR gates. The output of each exclusive OR gate is connected to one input of an adjacent exclusive OR gate except that the output of the last exclusive OR gate of the series is connected to control the input to the triac. Switches connecting to the remaining inputs of each of the exclusive OR gates each can independently determine energization or de-energization of the light bulbs.