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:
Nov. 24, 1992
Filed:
Sep. 30, 1991
Applicant:
Inventor:
Andre Gennesseaux, Chalette sur Loing, FR;
Assignee:
Hutchinson, , FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16M / ;
U.S. Cl.
CPC ...
26714015 ; 26714012 ;
Abstract
A hydraulic vibration-free coupler comprises an inner tubular strength member (1), an outer tubular strength member (2) and an intermediate body (3) made of elastomer defining fluid-tight chambers connected to each other by restricted passages (9). Natural vibrations are actively attenuated by artificially imposing appropriate vibrations to a magnetic ring (7) which moves freely in all possible transverse directions, but not axially, by excitation of electrical coils (5) circumferentially distributed around the ring on the inside of the outer tubular strength member (2). This is done along one or both of two separate diametral directions E and F.