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:
Jun. 18, 2002
Filed:
Jan. 31, 2000
Katsuhisa Yano, Inuyama, JP;
Takashi Yoshida, Kasugai, JP;
Katsuhiro Goto, Inuyama, JP;
Yoshihiko Hagino, Inuyama, JP;
Tokai Rubber Industries, Ltd., Komaki, JP;
Abstract
A fluid-filled active vibration damping device, including an elastic body which is elastically deformed when a vibration is input to the damping device and which partially defines a pressure receiving chamber as a portion of a fluid chamber filled with a non-compressible fluid, an oscillating body which partially defines the pressure receiving chamber, a drive device which oscillates the oscillating body, so as to control a pressure of the non-compressible fluid in the pressure receiving chamber, the drive device comprising an output member which is formed independent of the oscillating body and which is movable in a direction of oscillation of the oscillating body, a first biasing device which biases the oscillating body toward the output member of the drive device, and a second biasing device which biases the output member of the drive device toward an outside surface of the oscillating body, so that the output member is held in direct or indirect contact with the outside surface of the oscillating body.