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:
Jul. 24, 2001
Filed:
Jun. 16, 1999
NSK Ltd., Tokyo, JP;
Abstract
A fluid bearing motor having sufficient room for securing an air chamber for use in quickly discharging bubbles that have entered a thrust fluid bearing and a reservoir for supplying a lubricating fluid to the thrust fluid bearing. Moreover, the fluid bearing motor can easily be fabricated. The fluid bearing motor includes a shaft member,, a sleeve,cooperating with the shaft member and a thrust collar,which is fixed to the shaft member,and extended in the diametric direction. The circumferentially-directed contour of the outer peripheral face of the thrust collar,is made elliptic, so that a reservoir,and an air chamber,are formed between the outer peripheral face of the thrust collar,and the face,of the mating member (sleeve).