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:
Jan. 06, 2009
Filed:
Oct. 13, 2006
Nathan J. Weister, Darlington, PA (US);
William C. Pollitt, Murrysville, PA (US);
John J. Shea, Pittsburgh, PA (US);
Douglas C. Marks, Murrysville, PA (US);
Nathan J. Weister, Darlington, PA (US);
William C. Pollitt, Murrysville, PA (US);
John J. Shea, Pittsburgh, PA (US);
Douglas C. Marks, Murrysville, PA (US);
Eaton Corportion, Cleveland, OH (US);
Abstract
A contact spring assembly is provided for an electrical switching apparatus including a movable contact assembly and a stationary contact assembly having stationary electrical contacts. The movable contact assembly includes a carrier assembly, and movable contact arms pivotably coupled to the carrier assembly and carrying movable electrical contacts. The contact spring assembly includes a first contact spring housing member, a second contact spring housing member coupled to and disposed opposite from the first contact spring housing member, a spring guide disposed between and coupled to at least one of the first and second contact spring housing members and including spring holes, springs received in the spring holes, and sliders coupled to the springs. The springs and sliders individually bias the movable contact arms and movable electrical contacts toward engagement with corresponding stationary electrical contacts. A movable contact assembly and an electrical switching apparatus are also disclosed.