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Fluid lubricated bearing device
   
Document Number
US Patent 7566174
Issued Date
July 28, 2009
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Abstract
An inner space of a housing sealed with a seal member as well as internal pores of a bearing member (pores in a porous structure) are filled with a lubricating oil without the presence of air, so that the oil surface of the lubricating oil is within a seal space. Under a reduced pressure of 100 Torr, no lubricating oil leaks outside of the housing even at any attitude of the fluid lubricated bearing device such as normal, inverted, or horizontal attitude.
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Number of Claims:
2
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Owner
NTN Corporation (Osaka-Fu,JP)
Published
July 28, 2009
Application Number
11/972,584
Filed
January 10, 2008
US Classification
384/114   384/100
Int'l Classification
F16C   32/06   (20060101)  
Examiner
Attorney/Law Firm
Parent Case
CROSS-REFERENCE TO RELATED APPLICATION This application is a divisional application of application Ser. No. 11/854,366 filed on Sep. 12, 2007, now pending, which is a divisional application of application Ser. No. 11/326,826 filed on Jan. 6, 2006 and granted on Nov. 20, 2007 as U.S. Pat. No. 7,296,931, which is a divisional application of application Ser. No. 10/294,483 filed on Nov. 13, 2002 and granted on May 23, 2006 as Pat. No. 7,048,444, which claims the priority benefit of Japan applications Ser. No. 2001-347725, filed on Nov. 13, 2001, 2002-29520, filed on Feb. 6, 2002, 2002-35790, filed on Feb. 13, 2002, and 2002-281599, filed on Sep. 26, 2002.
Priority Data
Nov 13, 2001 [JP] 2001-347725 Feb 06, 2002 [JP] 2002-29520 Feb 13, 2002 [JP] 2002-35790 Sep 26, 2002 [JP] 2002-281599
USPTO Field of Search
384/100   384/107   384/114  
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