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. 22, 2007
Filed:
Feb. 25, 2004
Yusuke Akami, Kanagawa-ken, JP;
Noriyuki Utsumi, Kanagawa-ken, JP;
Hiroshi Yoshikura, Kanagawa-ken, JP;
Hiroshi Chikuma, Chiba-ken, JP;
Satoshi Ohsawa, Tokyo, JP;
Yusuke Akami, Kanagawa-ken, JP;
Noriyuki Utsumi, Kanagawa-ken, JP;
Hiroshi Yoshikura, Kanagawa-ken, JP;
Hiroshi Chikuma, Chiba-ken, JP;
Satoshi Ohsawa, Tokyo, JP;
Kabushiki Kaisha Hitachi Seisakusho, Tokyo, JP;
Abstract
An electromagnetic suspension system comprises a universal joint mechanism for permitting radial movement of a cylinder relative to a center yoke while preventing axial movement of the cylinder relative to the center yoke. Since the cylinder is capable of radial movement relative to the center yoke, if a lateral force acts on the cylinder, the lateral force acting on a hydraulic damper does not have any significant effect on the center yokewith respect to radial movement or rocking movement thereof. Therefore, excessive sliding friction does not occur in a center-yoke dry metal and a piston-rod dry metal, thereby ensuring smooth axial relative displacement between the center yoke and an outer yoke.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile