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:
Aug. 19, 2014
Filed:
Jan. 13, 2010
Kentaro Yamamoto, Osaka, JP;
Katsushi Saito, Osaka, JP;
Gen Isawa, Osaka, JP;
Tatsunori Masuda, Osaka, JP;
Katsuhiro Sakurai, Aichi, JP;
Kentaro Yamamoto, Osaka, JP;
Katsushi Saito, Osaka, JP;
Gen Isawa, Osaka, JP;
Tatsunori Masuda, Osaka, JP;
Katsuhiro Sakurai, Aichi, JP;
Toyo Tire & Rubber Co., Ltd., Osaka-shi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
In a liquid-sealed antivibration devicewhich includes: a main liquid chamberA where a vibration-isolating baseforms a portion of a chamber wall thereof; a subsidiary liquid chamberB where a diaphragmforms a portion of a chamber wall thereof; a partition elementby which the main liquid chamberA and the subsidiary liquid chamberA are partitioned from each other; and an orifice flow passagewhich allows the main liquid chamberA and the subsidiary liquid chamberB to be communicated with each other, an elastic membraneis formed on the partition element, and the elastic membraneis formed of rubber composition containing butyl rubber or halogenated butyl rubber. Due to such a constitution, an abnormal sound generated by collision of the elastic membraneis reduced.