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:
Mar. 27, 2001
Filed:
May. 03, 1999
Gottfried Schremmer, Tamm, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
A control cylinder is provided in a vehicle steering column arrangement in order to displace two jacket tube parts, displaceable telescopewise with respect to one another, relative to one another. The control cylinder includes a cylinder housing filled with a damping medium and a piston axially displaceable in a cylinder. A flexible sealing lip is provided as a sealing member for a through bore in the piston. The lip in its unloaded resting position leaves the through-flow cross section open. Upon an abrupt relative movement of the piston and cylinder housing, the level of the impact load on the fluid moves the lip into a closed position that at least largely seals off the through-flow cross section, with the deformation resistance of the sealing lip being chosen so that the sealing lip remains in its resting position during normal adjustment between the piston rod and the cylinder housing. Embodiments with multiple through bores and sealing lips are also provided.