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:
Oct. 04, 1983
Filed:
Jul. 07, 1981
Applicant:
Inventor:
Jacques M Sirven, 78000 Versailles, FR;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F / ;
U.S. Cl.
CPC ...
188282 ; 18832211 ; 188315 ;
Abstract
A shock absorber has a cylinder, a piston dividing the cylinder into two chambers, and a valve in the piston which opens to permit hydraulic fluid to flow through the piston when the compression rate of the shock absorber exceeds a limit value. The valve is moved to its open position by the pressure of hydraulic fluid in the chamber in the path of piston movement, and it is biased toward its closed position by a spring on the piston, a constant pressure gas in a reference chamber on the piston and the pressure of hydraulic fluid in the chamber behind the path of piston movement. Fluid from the contracting chamber is released by a check valve into a storage space.