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:
Oct. 07, 2014
Filed:
May. 02, 2012
Adrian J. Tengler, New Berlin, WI (US);
Michael S. Osvatic, Waukesha, WI (US);
Michael K. Hintz, Waukesha, WI (US);
Adrian J. Tengler, New Berlin, WI (US);
Michael S. Osvatic, Waukesha, WI (US);
Michael K. Hintz, Waukesha, WI (US);
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
An electrical switch provides a center contact moving between two outer contacts, at least one of which is mounted on a lever. In the event of a contact weld forming between the center contact and the lever mounted contact, unison motion of the lever mounted contact following the center contact during switching causes a strong shear force tending to break the weld. In one embodiment, a fulcrum wall striking the lever of the lever mounted contact causes increased angulation between the contacts so that unison motion rotates and peels the contacts apart.