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:
Jul. 08, 2003
Filed:
Dec. 27, 2001
Katsuhiro Goto, Inuyama, JP;
Kazuhiko Kato, Komaki, JP;
Abstract
A fluid-filled active vibration damping device comprising an elastic body elastically connecting a first and a second mounting member and partially defining a fluid chamber filled with a non-compressible fluid, an oscillating member partially defining the fluid chamber and being reciprocatory movable in order to control a pressure of the fluid in the fluid chamber. The above vibration damping device further includes an independently formed electromagnetic actuator for applying driving force to oscillate the oscillating member and having an oscillating sleeve member fixedly connected to the oscillating member, and a retainer adapted to support the electromagnetic actuator with respect to the second mounting member such that the retainer fixed to the second mounting member while housing the electromagnetic actuator, while a yoke member of the electromagnetic actuator is fixed to a bottom wall portion of the retainer so as to extend through the bottom wall portion. A method of producing the fluid-filled active vibration-damping device is also disclosed.