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, 2000
Filed:
Jun. 19, 1998
Applicant:
Inventors:
Shoji Fujii, Iwata, JP;
Yoshio Fujikawa, Shizuoka, JP;
Assignee:
NTN Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
384107 ; 384113 ; 384121 ;
Abstract
An externally pressurized gas bearing assembly including a bearing sleeve fixed in contact with an inner peripheral surface of a housing provided with a gas supply passage communicated with fine feed ports of thrust bearings and opening at an outer peripheral surface of the bearing sleeve through an interior of the bearing sleeve. The bearing sleeve supports a main shaft in an axial direction through an externally pressurized gas by a thrust bearing surface having a plurality of fine feed ports of the thrust bearing.