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. 31, 1979
Filed:
Sep. 02, 1977
Applicant:
Inventor:
James C Sturrock, Atlanta, GA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
361 93 ; 307 86 ; 3072 / ;
Abstract
An electronic switching apparatus comprising an elongate device having an opening in one end thereof for receipt of an electric conductor therethrough, a transformer winding surrounding the opening within the device such that a voltage will be induced in the transformer when a current passes through the conductor, means for detecting the induced voltage and providing a shunt in response to the induced voltage, a path through the device having a controlled rectifier therein, the rectifier having a gate, a circuit connecting the gate to the path for causing the rectifier to conduct, the shunt providing a shunt around the gate to prevent the rectifier from conducting.