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. 01, 1983
Filed:
Jan. 30, 1981
Richard S Lenzing, Farmington, CT (US);
General Electric Company, New York, NY (US);
Abstract
A contactor assembly comprises an arc chute having side walls, an intermediate wall and legs extending from the latter. A stationary electromagnet assembly is supported by a metallic support member, i.e. base plate, whose sidearms are secured to the bottom of the legs. Pole shader rings are nested in the arms of the magnet assembly. Portions of the pole shaders extending transversely from the magnet legs are clamped against platforms on the sidewalls of the arc chute by the spring force exerted by the base plate. An armature is secured to a moveable contact carrier that carries a spring biased contact bridge. The wear allowance of the contact carrier can be readily controlled by machining the platforms to the correct height. This is accomplished prior to installation of the electromagnet assembly by exerting a force directly against the contact bridges to close them against the stationary contacts. The platforms are then machined to a predetermined depth from the pole face of the armature. This minimizes tolerance buildups that adversely modify the distance of movement of the moveable contact carrier.