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:
Jun. 15, 2004
Filed:
Nov. 14, 2002
Horst Rosenfeldt, Gross-Zimmern, DE;
Eckhard Wendt, Koengen, DE;
Hans-Joachim Faulstroh, Schmiechen, DE;
Frank Schroeter, Moosburg, DE;
Horst Scherk, Ober-Ramstadt, DE;
Dorothea Adams, Buettelborn, DE;
Other;
Abstract
A passive force element on the basis of electrorheological liquids includes a piston with a piston rod guided in a cylindrical housing, and a force introduction element connected with the piston rod. The piston forms, in the cylindrical housing, two variable-volume working chambers, which are filled with electrorheological liquids, and which are connected by a fluid connection including a valve arrangement with an electrorheological liquid valve for controlling the throughflow characteristic. A regulated damping characteristic can be adjustedly set and force peaks are avoided, because the force introduction is achieved via the force introduction element, and the piston is coupled onto the force introduction element via an elastic element.