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. 26, 2008
Filed:
Oct. 13, 2005
Takeshi Yoneyama, Kasugai, JP;
Shouji Akasa, Ichinomiya, JP;
Takeshi Yoneyama, Kasugai, JP;
Shouji Akasa, Ichinomiya, JP;
Tokai Rubber Industries, Ltd., Komaki, JP;
Abstract
A fluid filled vibration damping device including: a low-frequency orifice passage opening directly towards a pressure-receiving chamber and an equilibrium chamber at either axial end surface of a first orifice member; a rubber partition plate disposed between a bottom surface of a center concavity of the first orifice member and a bottom end surface of a second orifice member, to create a seal mechanism that grasps an outer perimeter edge and a center diameter section of the rubber partition plate with a fluid-tight seal therebetween. Semicircular sections of the rubber partition plate surrounded by the areas grasped by the seal mechanism constituting a first deformable membrane section and a second deformable membrane section that respectively allow prescribed amounts of elastic deformation.