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:
Jan. 16, 1979
Filed:
Jun. 03, 1977
Applicant:
Inventor:
Kenneth P Holmes, Austin, TX (US);
Assignee:
Esquire, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 56 ; 361 91 ; 361 55 ;
Abstract
A protection circuit for producing one or more triggers in the presence of a monitored overvoltage condition employing photodiode networks for sensing the voltage overload, phototransistors responding to the photodiode outputs and operating gated semiconductors, which, in turn, discharge capacitors for trigger production. Separate networks are provided for each ac polarity operation. Monitoring may be with respect to supply voltage, power supply output voltage or one or more independent voltages.
Holmes, Kenneth. (1979). Electronic protection circuit (U.S. Patent No. 4135223). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4135223
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile