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:
Apr. 02, 2002
Filed:
Dec. 20, 2000
Etsunori Fujita, Hiroshima, JP;
Yoshimi Enoki, Hiroshima, JP;
Hiroshi Nakahira, Hiroshima, JP;
Eiji Sugimoto, Hiroshima, JP;
Shigeki Wagata, Hiroshima, JP;
Hideyuki Yamane, Hiroshima, JP;
Shigeyuki Kojima, Hiroshima, JP;
Kazuyoshi Chizuka, Hiroshima, JP;
Delta Tooling Co., Ltd., Hiroshima, JP;
Abstract
A magneto-spring structure includes a lower frame and an upper frame vertically movably mounted on the lower frame via a link mechanism. The upper and lower frames have respective permanent magnets secured thereto, with like magnetic pole opposed to each other. The link mechanism includes a plurality of links and a connecting member for rotatably connecting them via a bearing. The links are made of non-magnetic material, while the bearing is made of ferromagnetic material.