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. 31, 1995
Filed:
Nov. 10, 1994
Andre Gennesseaux, Chateaudun, FR;
Hutchinson, Paris, FR;
Abstract
The hydraulic antivibration device is designed to be interposed between the body (9) and the engine (10) of a vehicle. It comprises an annular rigid strength member (1), a rigid rod (2) passing through the strength member, an annular spring (3) resting on the strength member and interposed between the strength member and the rod which passes through the spring, a membrane (4) carried by the strength member and co-operating with an annular wall (6) to define an enclosure disposed above the spring, an intermediate rigid partition (7) carried by the strength member and subdividing the inside of the enclosure into two chambers (A, B), a mass of liquid filling the two chambers and the narrow passage, a first disk (6) secured to the base of the annular wall, and a second disk (2.sub.1) secured to the head of the rod, and resting on the spring. A control apparatus is provided causing at will the two disks to move apart from each other axially.