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:
Nov. 05, 1991
Filed:
Aug. 20, 1990
Tony O Woodard, Pine Level, NC (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A plunger axially depressible within a tubular housing against a return spring has a conductive pin contact contained within a helically shaped slot through the plunger to project radially from opposite sides of the plunger. A spring biases the pin toward a first pair of stationary contacts. Depression of the plunger effects abutting engagement of the pin on the stationary contacts and continued depression causes the slot to rotationally wipe the pin on the stationary contacts. A conductive washer is slidably disposed over the plunger, keyed to a helical track on the exterior surface of the plunger to cooperatively abut and subsequently rotationally wipe a second pair of stationary contacts to provide a second pole for the switch.