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. 07, 2005
Filed:
Nov. 16, 2001
Atsushi Muramatsu, Komaki, JP;
Kazuhiko Kato, Komaki, JP;
Motohiro Hatano, Kounan, JP;
Tokai Rubber Industries, Ltd., Aichi-ken, JP;
Abstract
Disclosed is a pneumatically operated active vibration damping device including an elastic oscillating plate partially define a pressure receiving chamber formed on one side thereof and an oscillating air chamber formed on the other side thereof, wherein the elastic oscillating plate is oscillated due to a periodic change of the air pressure generated in the oscillating air chamber so as to exhibit active vibration damping effect of the device, and wherein at least one of the pressure receiving chamber and the oscillating air chamber undergoes a static pressure change so as to change a spring stiffness of the elastic oscillating plate. Thus, the device is capable of changing its active vibration damping characteristics based on the oscillation of the elastic oscillating plate.