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:
Dec. 04, 2001
Filed:
Feb. 01, 1999
Applicant:
Inventors:
Hans-Peter Friedrich, Zorneding, DE;
Fritz Kummer, Munich, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01B 2/500 ;
U.S. Cl.
CPC ...
E01B 2/500 ;
Abstract
A cross-over between tracks (,) for track-gripping, track-bound vehicles consists of two parallel adjacent movable track elements (,) coupled to each other by several connection elements (,) of constant length. The track elements (,) can take two or three defined positions and allow changing from ne track to another without altering the track gauge. The connecting elements can be actuated by a common driving unit.