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. 01, 2005
Filed:
Mar. 04, 2003
Hidehiko Nishijima, Iwata, JP;
Yoshio Fujikawa, Iwata, JP;
Hidehiko Nishijima, Iwata, JP;
Yoshio Fujikawa, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
A foil bearing is provided, which is simple in structure, has a large load capacity and a large damping capability and can therefore allow a rotary shaft having a large unbalance as compared with the conventional bearing to be driven stably at a high speed. A spindle device utilizing such foil bearing is also provided, which is designed to increase the permissible amount of unbalance and also to have a light-weight feature. Each of the foil bearingsandincludes an elastic memberprepared from a wire net formed by braiding wires, and a thin bearing foilsupported by the elastic memberand defining an elastic bearing surface S. The respective foil bearingandis used at least as a radial bearingin the spindle device including a rotary shafthaving a head mounton which an atomizer head is mounted, and the radial and thrust bearingsandfor rotatably supporting the rotary shaft