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:
Apr. 07, 2015
Filed:
Aug. 23, 2010
Ole Göetz, Braunschweig, DE;
Wolfgang Hamers, Jülich, DE;
Klaus Schmidt, Odenthal, DE;
Dmitrij Smeljanskij, Leverkusen, DE;
Freddy Woenarta, Braunschweig, DE;
Ole Göetz, Braunschweig, DE;
Wolfgang Hamers, Jülich, DE;
Klaus Schmidt, Odenthal, DE;
Dmitrij Smeljanskij, Leverkusen, DE;
Freddy Woenarta, Braunschweig, DE;
ThyssenKrupp Bilstein GmbH, Ennepetal, DE;
Abstract
A motor-vehicle shock absorber has a tube at least partially filled with damping liquid and extending, a piston rod axially shiftable inside the damper tube, and a piston connected to the piston rod and subdividing the damper tube into a piston rod-side working chamber and an opposite working chamber. An on-off control valve is axially movable inside the piston between a closed and an open position. A first soft-characteristic damping valve inside the piston through which the damping liquid may flow in both flow directions is connectable to a flow path of the damping liquid from one into the other working chamber through the control valve. A second hard-characteristic damping valve through which the damping liquid may flow in both flow directions is also provided in the piston.