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. 24, 2002
Filed:
Mar. 12, 2001
Applicant:
Inventor:
Robert Pradel, Heidenfeld, DE;
Assignee:
Mannesmann Sachs AG, Schweinfurt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F 9/04 ;
U.S. Cl.
CPC ...
F16F 9/04 ;
Abstract
Spring strut with a pneumatic spring and an oscillation damper which can be adjusted as a function of the support pressure. The pneumatic spring has a spring space bounded by a U-type bellows, which spring space is pneumatically connected to a damping device which can be adjusted as a function of a support pressure. A component which having a duct connects the spring space and the damping device is embodied without a hose and is integrated in the spring strut in such a way that it does not form any essential surface change in an unrolling piston associated with the U-type bellows and the unrolling piston forms at least a part of this duct.