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:
Sep. 09, 1997
Filed:
Jul. 27, 1994
Applicant:
Inventor:
John J Wilhelm, New Kensington, PA (US);
Assignee:
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61C / ;
U.S. Cl.
CPC ...
105 30 ; 105 73 ; 105150 ; 105154 ; 104 95 ;
Abstract
Wheel assembly capable of maintaining engagement with a rail having an uneven portion therein. The wheel assembly includes a frame adapted to pivot about a pivot axis defined by the frame. At least one wheel is rotatably connected to the frame for traversing the rail. The wheel maintains engagement with the rail as the wheel traverses the uneven portion of the rail because the frame pivots about the pivot axis as the wheel encounters the uneven portion of the rail. Service tooling may be suspended from the wheel assembly to service a nuclear reactor pressure vessel located below the rail.