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:
Feb. 06, 2007
Filed:
Dec. 17, 2003
Frank Gundermann, Schonungen-Marktsteinach, DE;
Joachim Kühnel, Dittelbrunn, DE;
Christian Böhm, Rannungen, DE;
Heinz-joachim Gilsdorf, Donnersdorf, DE;
Frank Gundermann, Schonungen-Marktsteinach, DE;
Joachim Kühnel, Dittelbrunn, DE;
Christian Böhm, Rannungen, DE;
Heinz-Joachim Gilsdorf, Donnersdorf, DE;
ZF Sachs AG, Schweinfurt, DE;
Abstract
Vibration damper comprising a piston rod, which is guided with freedom of axial movement in a damping medium-filled cylinder and which carries a piston, which divides the cylinder into two working spaces. At least one of the two working spaces has a flow connection leading to a housing, in which a separating element separates at least one chamber from one of the two working spaces, where the volume of the minimum of one chamber in the housing has a size which is variable within defined limits. The separating element executes relative motion with respect to the housing, and is located in a permanent position with respect to the piston rod, whereas the housing is movable with respect to the piston rod.