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. 27, 2011
Filed:
May. 02, 2007
Applicants:
Roland Buda, Radolfzell, DE;
Frank Meyer, Stockach, DE;
Inventors:
Roland Buda, Radolfzell, DE;
Frank Meyer, Stockach, DE;
Assignee:
Schwihag AG, Taegerwilen, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01B 9/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
In the case of a hollow sleeper () for adjusting devices of switch blades of railway points, movable common crossings or cable crossings in any desired sections of track and points, formed as an upwardly open hollow sleeper profile with a planar sleeper underside (), for fitting in a track skeleton, wherein the cross-sectional width and height are made to match a normal concrete, wooden or steel sleeper, the positional stability on ballast can be improved if the sleeper underside () of the hollow sleeper () is formed with at least one sunken, downwardly open chamber ().