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:
Nov. 09, 2004
Filed:
Jan. 30, 2003
Applicant:
Inventor:
Roland Beckers, Lauffen, DE;
Assignee:
Minebea Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 3/206 ; F16C 3/372 ;
U.S. Cl.
CPC ...
F16C 3/206 ; F16C 3/372 ;
Abstract
A fluid dynamic bearing assembly including a shaft and a bearing sleeve. A bearing gap is formed between the shaft and the bearing sleeve and is filled with a lubricating fluid. A reservoir containing the excess of the lubricating fluid is formed at one end of the bearing sleeve. The reservoir is not located in close proximity to the shaft. A fluid trapping recess is formed in the shaft, the fluid trap being configured to prevent migration of the lubricating fluid along the shaft into the environment.