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:
Oct. 28, 2003
Filed:
Jul. 02, 2002
Martin Teichmann, Graz, AT;
Herwig Waltensdorfer, Graz, AT;
Hans Hödl, Graz, AT;
Alexander Schimanofsky, Graz, AT;
Siemens SGP Verkehrstechnik GmbH, Vienna, AT;
Abstract
The rail car ( ) with a substructure ( ) and a car body ( ) arranged thereon having a main suspension system ( ) on a fluid basis is provided with at least one strut ( ) supporting the car body ( ) against the substructure ( ). The pressure prevailing in the strut being correlated to the weight of the car body, and at least one emergency spring ( ) supports the car body ( ) against the substructure ( ) in case of a failure of the main suspension ( ). The at least one emergency spring ( ) is biased and maintained in normal operation position (FIGS. ) by a force (F) generated by the pressure (p) prevailing in the strut ( ). The emergency spring ( ) expands from the normal operation position into an emergency operation position (FIG. ) in which it resiliently supports the car body ( ) in case of a failure of the main suspension system ( ).