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:
Oct. 28, 2014
Filed:
Apr. 20, 2009
Akihiko Okimura, Kanagawa, JP;
Yoshiteru Igarashi, Kanagawa, JP;
Naohiro Horita, Kanagawa, JP;
Oiles Corporation, Tokyo, JP;
Abstract
A damperincludes a vesselfor accommodating a viscous fluidin its interior; hampering wallsandfor hampering the flow of the viscous fluid; a partitioning memberwhich partitions each of interior portionsandinto two chambersandand is provided rotatably; a communicating holeformed in the partitioning memberso as to allow the two chambersandto communicate with each other via a variable passagewhose passage cross-sectional area changes; a flow limiting meansfor limiting the flow of the viscous fluidin the chamberinto the chamberthrough the communicating hole, when the internal pressure of the viscous fluidaccommodated in the chamberhas exceeded a fixed value on the basis of the rotation of the partitioning member; and a resilient meansfor resiliently urging the partitioning memberin an Rdirection with respect to the vessel