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. 12, 2007
Filed:
Feb. 23, 2005
Waldemar Wilda, Krakow, PL;
Lukasz Piotrowski, Jaroslaw, PL;
Marcin Knapczyk, Krakow, PL;
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A hydraulic damper including a tube filled with working liquid which contains a slidable piston assembly attached to a piston rod. The piston assembly includes a piston having a compression valve arrangement to control the flow of working liquid passing through the piston during the compression stroke of the damper. The compression valve arrangement includes a stack of resilient deflectable disks placed on one axial side of the piston and covering compression flow passages in the piston, a spring, spring seat guide and a spring retainer, the spring mounted between the spring seat and the spring retainer. The spring biases the axially slidable spring seat against the stack of disks to normally close the compression flow passages, and the stack of disks is held by the spring seat. The spring seat guide may also be provided with rebound flow passages linked with flow passages in the piston.