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:
Oct. 10, 1978
Filed:
Dec. 13, 1976
Applicant:
Inventors:
Jean-Pierre Rene Coulmance, Osny, FR;
Jean-Claude Gerard Six, Sevres, FR;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219501 ; 323 19 ; 323 40 ;
Abstract
A method and device for controlling the power supplied to an a.c. powered load by zero-passage switching. A ripple voltage which is superimposed on the control voltage synchronizes the start of a sawtooth voltage in a small range on both sides of the zero passage of the power-supply sinewave for the load. The device is employed in electric heating systems.
Coulmance, Jean-Pierre. (1978). Electronic thermostat (U.S. Patent No. 4119835). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4119835
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile