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:
Jul. 14, 2015
Filed:
Jul. 25, 2013
Applicant:
Tenneco Automotive Operating Company Inc., Lake Forest, IL (US);
Inventors:
Mark Nowaczyk, Heers, BE;
Gunther Bismans, Alken, BE;
Assignee:
Tenneco Automotive Operating Company Inc., Lake Forest, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 9/50 (2006.01); F16F 9/34 (2006.01); F16F 9/18 (2006.01); F16F 9/32 (2006.01);
U.S. Cl.
CPC ...
F16F 9/50 (2013.01); F16F 9/182 (2013.01); F16F 9/185 (2013.01); F16F 9/3214 (2013.01); F16F 9/34 (2013.01);
Abstract
A shock absorber has a pressure tube with a piston assembly slidably disposed within the pressure tube and attached to a piston rod. The piston assembly divides the pressure tube into an upper working chamber and a lower working chamber. The piston assembly includes a frequency dependent valve assembly attached to the piston rod which defines a housing attached to the piston rod and a piston disposed within the housing. The piston moves within the housing to control the fluid flow through a bypass fluid passage that bypasses the piston assembly.