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. 14, 2010
Filed:
Sep. 17, 2004
Applicant:
Andreas Hirtenlehner, Waidhofen an der Ybbs, AT;
Inventor:
Andreas Hirtenlehner, Waidhofen an der Ybbs, AT;
Assignee:
Knorr-Bremse Ges. M. B. H., Modling, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61D 23/00 (2006.01); B61D 47/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A retractable step for a rail vehicle includes a treadable region having lateral guides, a front edge, a guide region, a first roller disposed on the rail vehicle, and a second roller disposed in a guide. The guide has a configuration that is one or more of oblique, curved or bent. Also included is a transition area between the treadable region and the guide region. The transition area is configured to have one or more of a bend and a curvature and has an upwardly convex shape.