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:
Nov. 27, 1979
Filed:
May. 19, 1978
Applicant:
Inventor:
Kung C Chow, East Hanover, NJ (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 93 ; 307358 ; 324127 ; 361 98 ;
Abstract
A solid state overcurrent relay which receives both an information signal and operating power from a single current transformer. A power supply, which couples the current transformer and relay, is constructed to present a constant impedance load on the current transformer, enabling the current transformer to simultaneously provide an accurate information signal.