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:
Dec. 15, 1998
Filed:
Jun. 10, 1997
Toshinori Hijiya, Itabashi-ku, JP;
Hiroyuki Shingai, Itabashi-ku, JP;
Copal Company Limited, Tokyo, JP;
Abstract
It is an object of the invention to provide an inexpensive and high-quality fluid bearing which improves the workability in assembly or coupling of a shaft and a rotator. In order to achieve this object, a fluid bearing according to the invention includes a rotating shaft, a bearing member for rotatably supporting the rotating shaft, and first and second fluid film formation mechanisms arranged at positions near a central portion of the rotating shaft along its longitudinal direction. The first fluid film formation mechanism forms a fluid film between the rotating shaft and the bearing member while the rotating shaft rotates in a first direction. The second fluid film formation mechanism forms a fluid film between the rotating shaft and the bearing member while the rotating shaft rotates in a second direction opposite to the first direction.