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:
Feb. 25, 2003
Filed:
Feb. 12, 2002
Kentaro Yamamoto, Osaka, JP;
Toyo Tire & Rubber Co., Ltd., Osaka, JP;
Abstract
A liquid-filled vibration-proof device constructed so that the positioning and supporting function of a partition is performed firmly and a port opening of an orifice passage in the partition is not obstructed to ensure a sufficient opening area of the port opening. To that end, a diaphragm and a partition located inwardly thereof are hermetically fixed to a cylindrical fitting at a side opposing a vibration-isolating base thereby partitioning an enclosure between the vibration-isolating base and the diaphragm into two liquid chambers, the both liquid chambers being put in communication with each other through the orifice passage; the vibration-isolating base is provided at a marginal part of its inner face with protruding portions for positioning, with which an upper marginal portion of the partition is in opposed contact, disposed circumferentially at intervals at plural positions so as not to impede the flow of the port opening.