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. 19, 2000
Filed:
Jul. 08, 1998
Applicant:
Inventors:
Heinz Knecht, Eitorf, DE;
Norbert Ackermann, Eitorf, DE;
Assignee:
Mannesmann Sachs AG, Eitorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60G / ; B60G / ; F16F / ;
U.S. Cl.
CPC ...
1882822 ; 18832215 ; 18832213 ; 188316 ; 1882828 ;
Abstract
A controllable vibration damper for motor vehicles, having a cylinder containing damping fluid, a piston rod entering the cylinder in a sealed manner and arranged axially displaceably therein, and a damping piston which is fastened to the piston rod and divides the cylinder into two working spaces, as well as a damping valve, which is provided with a valve seat and controls the effective cross section of a damping passage of the main stage via an axially displaceable valve body, the valve body being acted on in one direction by a precontrolling device and activated directly in the opposite direction.