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. 08, 1990
Filed:
Jun. 12, 1989
Tokai Rubber Industries, Ltd., Aichi, JP;
Abstract
A fluid-filled cylindrical elastic mount including an inner and an outer sleeve; an elastic body interposed between the inner and outer sleeves; a rigid sleeve disposed over at least an outer circumferential surface of opposite axial end portions of the elastic body; a pressure-receiving chamber provided between the inner and outer sleeves, filled with a non-compressible fluid, and receiving a vibrational load to be damped; an equilibrium chamber provided between the inner and outer sleeves, filled with the fluid, and at least partially defined by a flexible wall; a restricted passage for restricted fluid communication between the pressure-receiving and equilibrium chambers; a recess-defining member disposed between the inner and outer sleeves, for defining a radially outwardly opening recess, the outer sleeve covering the recess to provide a space of a predetermined volume; and an elastic sleeve for fluid-tight sealing between the outer and rigid sleeves. A portion of the elastic sleeve which is aligned with the space, is spaced apart from the outer sleeve so as to provide a flexible diaphragm in the space, the flexible diaphragm serves as the flexible wall, and the equilibrium chamber is provided in the space. The rigid sleeve and the recess-defining member may be constituted by a single generally cylindrical member.