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:
May. 17, 2022
Filed:
Dec. 12, 2018
Bridgestone Corporation, Tokyo, JP;
Akira Ueki, Tokyo, JP;
Yasuyuki Nagashima, Tokyo, JP;
Yuki Satake, Tokyo, JP;
Kenichiro Iwasaki, Tokyo, JP;
BRIDGESTONE CORPORATION, Tokyo, JP;
Abstract
A present invention provides an anti-vibration device () which is equipped with a first tubular mounting member () connected to one of a vibration generating part and a vibration receiving part, and a second mounting member () connected to the other thereof; an elastic body () which connects the first mounting member and the second mounting member; and a partition member () which partitions a liquid compartment () in the first mounting member into a first liquid compartment () having the elastic body in a part of a bulkhead, and a second liquid compartment () in an axial direction along an central axis of the first mounting member, and has an orifice passage () through which the first liquid compartment and the second liquid compartment communicate with each other, in which a plurality of ridge parts () extending in a circumferential direction are formed on an inner surface () of the elastic body which defines the first liquid compartment in a radial direction.