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:
May. 26, 1981
Filed:
Apr. 09, 1979
Applicant:
Inventor:
Warren C Fry, Connellsville, PA (US);
Assignee:
General Equipment & Mfg. Co., Inc., Louisville, KY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 21 ; 361 85 ; 361 92 ; 307 87 ;
Abstract
An electronic sensing circuit monitoring the voltage on each of two alternating current power lines indicates when a load may be transferred from one of the power lines to the other without generating undesirable transient voltages or currents in the load.