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:
Aug. 06, 1991
Filed:
Jun. 11, 1990
Nobuo Matsumoto, Nagoya, JP;
Keita Shiraki, Kasugai, JP;
Tokai Rubber Industries Ltd., Aichi, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
A fluid-filled cylindrical elastic mount having an elastic body between an inner and an outer sleeve, a movable member movably disposed in a pressure-receiving chamber defined by the outer sleeve and the elastic body, a rigid member cooperating with the outer sleeve to define a space diametrically opposite to the pressure-receiving chamber in a load-receiving direction of the mount, and a partition member having a flexible portion and dividing the space into two sections one of which serves as an equilibrium chamber disposed diametrically opposite to the pressure-receiving chamber. The movable member and the inner surface of the pressure-receiving portion define a fluid resonance portion for isolating high-frequency vibrations. An orifice passage is spirally formed for fluid communication between the pressure-receiving and equilibrium chambers, for damping low-frequency vibrations.