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. 10, 1981
Filed:
Jul. 14, 1978
Applicant:
Inventor:
Guglielmo Rossi, Stutensee-Friedrichstal, DE;
Assignee:
Ranco Incorporated, Columbus, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200275 ; 200 / ;
Abstract
A snap action switch blade has two resilient legs which project from an integral base portion beyond and on each side of a tongue to which an operating force is applied. The legs are joined together by a contact element which is welded to two inwardly projecting arms at the free ends of the legs, drawing the latter together to prestress the blade with a dish deformation. The two arms may be narrower than the legs, their common centerline being spaced from the contact zone of the contact, so that a twisting action is imparted to arms prior to separation of the contact from a fixed contact, assisting in breaking contact welds.