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:
Feb. 03, 1987
Filed:
Jul. 29, 1985
Applicant:
Inventor:
Henry G Willard, Wethersfield, CT (US);
Assignee:
General Electric Company, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
335-7 ; 335180 ; 335268 ;
Abstract
A modified electronic trip unit actuator provides remote trip and undervoltage release function without impairing the actuator reliability. One embodiment replaces the permanent magnet of a flux shift trip unit actuator with an undervoltage release coil for undervoltage facility and a further embodiment uses the combination of a permanent magnet with a shunt trip coil for remote tripping function.