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:
Mar. 06, 2007
Filed:
Dec. 20, 2004
Winfried Hommen, Ebersberg, DE;
Henry Kirsch, München, DE;
Martin Lehmair, München, DE;
Reinhard Loebner, München, DE;
Martin Waldstein, München, DE;
Ralf Oberthür, München, DE;
Winfried Hommen, Ebersberg, DE;
Henry Kirsch, München, DE;
Martin Lehmair, München, DE;
Reinhard Loebner, München, DE;
Martin Waldstein, München, DE;
Ralf Oberthür, München, DE;
Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH, Munich, DE;
Abstract
A secondary suspension for a rail vehicle includes a superstructure, a bogie and a steel spring arranged between the superstructure and the bogie. The steel spring ensures at least one raised traveling level for the superstructure when the rail vehicle is traveling. Further included is a tension cylinder. When the rail vehicle is stopped, the steel spring is compressed by the tension cylinder to adjust the superstructure to a lowered station platform level below the at least one traveling level.