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:
Dec. 10, 2019
Filed:
Aug. 03, 2016
Bridgestone Corporation, Chuo-ku, Tokyo, JP;
Hiroshi Kojima, Tokyo, JP;
BRIDGESTONE CORPORATION, Tokyo, JP;
Abstract
An anti-vibration device includes: a cylinder body coupled to a vibration receiver; a support body coupled to a vibration source; an elastic body that attaches the support body to the cylinder body such that the support body is capable of moving relative to the cylinder body; a first liquid chamber sectioned by an orifice pathway and the elastic body; a second liquid chamber that a liquid flows to and from the first liquid chamber through the orifice pathway; a first gas chamber with a wall configured by a diaphragm; a second gas chamber capable of communicating with the first gas chamber; and a switching section that switches a state of communication of the first gas chamber and the second gas chamber.