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:
May. 15, 2007
Filed:
Oct. 12, 2005
Applicant:
Darrell Breese, Ypsilanti, MI (US);
Inventor:
Darrell Breese, Ypsilanti, MI (US);
Assignee:
Tenneco Automotive Operating Company Inc., Lake Forest, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 9/10 (2006.01); F16F 9/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
A dual tube shock absorber includes a spool valve located between the upper working chamber and the reserve chamber. The spool valve moves with the piston rod to open and close a flow path between the upper working chamber and the reserve chamber. This provides a low damping characteristic for small movements of the piston rod which changes to a high damping characteristic for larger movement of the piston rod.