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. 14, 1991
Filed:
Jun. 18, 1990
Applicant:
Inventors:
Donna C DeRosier, Plainville, CT (US);
Richard A Dziura, Plainville, CT (US);
Joseph M Palmieri, Southington, CT (US);
Eric D Juntwait, Plainville, CT (US);
Linda Y Jacobs, Barkhamsted, CT (US);
Graham A Scott, Avon, CT (US);
Assignee:
General Electric Company, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
336180 ; 336173 ;
Abstract
A compact circuit breaker containing an electronic trip unit for interrupting overcurrent conditions within a protected circuit is made operable over a wide operating current range by means of current transformers having multiple turn primary windings. The primary windings are selected to provide a constant ampere-turns ratio to the current transformers without changing the size of the secondary winding or the volume of the transformer core.