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:
Feb. 12, 2013
Filed:
Jul. 24, 2008
Applicant:
Peter Heidrich, Des Plaines, IL (US);
Inventor:
Peter Heidrich, Des Plaines, IL (US);
Assignee:
Wabtec Holding Corp., Wilmerding, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60J 5/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multi-part drive shaft for a transit vehicle door comprises an upper drive shaft connected to a door operating mechanism and having a door panel operating arm extending therefrom, a lower drive shaft journaled for rotation, a door panel operating arm extending therefrom and a flexible drive shaft secured at one end to the upper drive shaft and at the other end to the lower drive shaft. Rotation of the upper drive shaft will transfer torque to the lower drive shaft at the same angular speed.