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. 05, 2002
Filed:
Oct. 07, 1998
Applicant:
Inventors:
Simon Anne DeMolina, Brussegem, BE;
Karl C. Kazmirski, Toledo, OH (US);
Assignee:
Tenneco Automotive Inc., Lake Forest, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 9/50 ;
U.S. Cl.
CPC ...
F16F 9/50 ;
Abstract
A two-stage shock absorber has a pressure tube within which a valve assembly is slidably disposed. A piston rod is attached to the valve assembly and extends out of the pressure tube. A ring is slidably disposed within the pressure tube and engages the valve assembly. After a specified amount of movement of the valve assembly with respect to the pressure tube in an extension movement of the shock absorber, the sleeve engages a metered slot and reduces the fluid flow through the valve assembly to progressively switch the shock absorber from soft damping to firm damping.