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. 20, 2007
Filed:
Jun. 26, 2002
Herbert Klein, Zeltweg, AT;
Herbert Klein, Zeltweg, AT;
VAE Eisenbahnsysteme GmbH, Zeltweg, AT;
VAE GmbH, Vienna, AT;
Abstract
In a device for operating rail switches, in which a plurality of mutually coupled hydraulic operating devices are arranged in an offset manner in the longitudinal direction of the rails, the cylinder-piston units of the hydraulic operating devices are connected to be driven in the same direction. The working volumes () of the hydraulic cylinder piston units () each comprise two regions () with defined cylinder cross sections, wherein the respective regions () containing end-position securing means (), safety locking means and/or sensors, of the cylinder-piston units () arranged in an offset manner in the longitudinal direction of the rails have equal cross sections and the respective other regions () of the cylinder-piston units () arranged in an offset manner in the longitudinal direction of the rails have cross sections differing from one another. (FIG.)