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:
Mar. 23, 2010
Filed:
May. 01, 2007
Nathan J. Weister, Darlington, PA (US);
William C. Pollitt, Murrysville, PA (US);
Paul R. Rakus, Beaver Falls, PA (US);
Ronald W. Brand, Beaver Falls, PA (US);
Nathan J. Weister, Darlington, PA (US);
William C. Pollitt, Murrysville, PA (US);
Paul R. Rakus, Beaver Falls, PA (US);
Ronald W. Brand, Beaver Falls, PA (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A pole shaft assembly for a circuit breaker includes a receiving portion disposed on the exterior side of the housing, a pole shaft pivotably disposed within the receiving portion and including at least one protrusion, a number of cover members overlaying the pole shaft and the receiving portion, at least one first seal disposed between the receiving portion and a corresponding protrusion, and at least one second seal disposed between such protrusion and a corresponding one of the cover members. The seals resist undesired entry of debris between the receiving portion and the pole shaft, and control the discharge of arc gases from the circuit breaker. The first seal is formed by the interaction between the receiving portion and the corresponding protrusion. The second seal is formed by the interaction between the protrusion and the corresponding one of the cover members.