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:
Aug. 27, 2019
Filed:
Oct. 18, 2017
Beijingwest Industries Co., Ltd., Beijing, CN;
Marcin Knapczyk, Cracow, PL;
Waldemar Widla, Zabierzow Bochenski, PL;
Pawel Slusarczyk, Myslenice, PL;
Jakub Wrzesinski, Cracow, PL;
Marcin Zborowski, Katowice, PL;
BEIJINGWEST INDUSTRIES CO., LTD., Beijing, CN;
Abstract
A hydraulic damper includes a piston rod attached to a slidable piston assembly having a hollow housing with first and second valve assemblies disposed therein and each including a valve body and rebound and compression discs for regulating flow of a working fluid through the piston assembly. The first valve assembly is disposed about a sleeve with a valve nut securing them within the housing. The second valve assembly is threadedly secured in the housing, with a pin holding it together. The housing including a coil and an armature, axially slidable through a plunger guide with a spring biasing the armature to a first position with fluid allowed to flow through the sleeve to bypass the first valve. The armature slides to a second position with fluid not bypassing the first valve in response to the coil being energized by an electrical cable which extends through the piston rod.