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:
Nov. 10, 2015
Filed:
Apr. 23, 2012
Janusz Goldasz, Krakow, PL;
Zbigniew Szklarz, Zator, PL;
Waldemar Widla, Zabierzow, PL;
BeijingWest Industries, Co. Ltd., Beijing, CN;
Abstract
A hydraulic damper () comprises a tube () filled with working liquid, inside of which a slidable piston assembly () is attached to a piston rod () and provided with at least one valve assembly () to control the flow of working liquid passing through the piston assembly () during rebound and compression stroke of the damper. The valve assembly () contains a floating disc valve () and additionally comprises a unidirectional check valve disc () disposed serially with the floating disc valve () across the passage of the flow of working liquid during compression or rebound stroke of the damper (). Preferably the piston assembly () forms a symmetrical cross-flow arrangement and preferably the at least one valve assembly includes compression () and rebound () valve assemblies of the piston assembly () which each have the same constructions.