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:
Dec. 02, 1997
Filed:
Jan. 10, 1996
Applicant:
Inventor:
John M Winter, Cedar Rapids, IA (US);
Assignee:
Square D Company, Palatine, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200401 ; 246983 ; 267179 ;
Abstract
A toggle spring for a circuit breaker operating mechanism which provides better performance and reliability is provided. The toggle spring includes a unique spring eye having a back hook portion extending around a spring shank so as to dramatically increase the force supportable by the spring eye. The toggle spring is provided having a body portion having a first end and a second end. A first spring eye extends from the first end of the body portion and a shank extends from the second end of the body portion. A second spring eye extends from the shank and includes the back hook portion which extends around the shank.