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. 08, 1985
Filed:
Mar. 21, 1983
Donald W Crouch, Newton Square, PA (US);
Joseph C Sofianek, Broomall, PA (US);
General Electric Company, New York, NY (US);
Abstract
A vacuum interrupter comprises an end plate having a central opening through which a movable contact rod extends. A tubular metallic bellows surrounds the contact rod and includes a plurality of annular convolutions at its inner diameter. Guide structure fixed to the end plate lines its central opening and is located outside said convolutions. A sleeve of self-lubricating plastic material surrounds the contact rod and is fixed thereto. This sleeve is disposed within the guide structure and within the tubular bellows and fits closely within said convolutions so that the convolutions are capable of bearing against the sleeve to assist in guiding the rod.