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:
Oct. 19, 2004
Filed:
Feb. 07, 2003
Applicant:
Inventors:
Steven L. Ross, Pittsburgh, PA (US);
Brian Hilgert, Verona, PA (US);
Assignee:
Universal Electric Corporation, Bridgeville, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60M 1/00 ;
U.S. Cl.
CPC ...
B60M 1/00 ;
Abstract
A continuously installable/removable collector trolley includes a plurality of selectively extendable and retractable bearing assemblies. The bearing assemblies may be retracted to permit insertion and removal of the trolley into a conductor bar track at any point along the track. The bearing assemblies may then be extended to secure the trolley within the track, and to permit the bearings to roll along the track, permitting movement of the trolley.