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.

Date of Patent:
Nov. 20, 2001

Filed:

May. 07, 1999
Applicant:
Inventors:

Loris Vignocchi, Zola Predosa, IT;

Sandro Musiani, Marzabotto, IT;

Assignee:

Marzocchi, S.p.A., Bologna, IT;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F 9/34 ;
U.S. Cl.
CPC ...
F16F 9/34 ;
Abstract

The present invention provides a shock absorber having improved damping. On the base of the shock absorber there is fastened the bottom of a barrel on which rests the counter-acting spring which urges in expansion the piston of the shock absorber. The barrel contains damping fluid and has a piston which is axially movable with lateral seal. The shock absorber also has an external secondary flow dampening device which is connected to the base of the shock absorber via a tube. In the strut base, and the connecting appendage there is a plug adjustment which moves laterally and limits an alternative path of flow for the liquid through the base flow damper and the piston flow damper respectively. By acting on the plug adjustments it is possible to adjust the braking level in expansion of the strut. Each flow damper also is affixed with a shim. The shim on the piston flow damper will flex at an appropriate pressure in the expansion phase, thereby damping the reaction of the strut to expansion. Alternatively the shim at the base flow damper will flex at an appropriate pressure in the compression phase damping the reaction of the strut to compression.


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