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:
Mar. 05, 2019
Filed:
Dec. 10, 2014
Applicant:
Nsk Ltd., Tokyo, JP;
Inventors:
Assignee:
NSK LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 15/16 (2006.01); F16J 15/3284 (2016.01); F16C 33/78 (2006.01); H01L 21/67 (2006.01); H01L 21/687 (2006.01); F16C 35/06 (2006.01); F16C 19/54 (2006.01);
U.S. Cl.
CPC ...
F16J 15/3284 (2013.01); F16C 33/7886 (2013.01); F16C 35/06 (2013.01); H01L 21/67126 (2013.01); H01L 21/68792 (2013.01); F16C 19/54 (2013.01);
Abstract
A sealing mechanism functioning as a separator between two spaces having different pressures or gases, includes: a housing; a shaft inserted into the housing; and a plurality of annular sealing members sealing a gap by contacting a part of the shaft or a radial outer surface of a rotary portion fixed to the shaft. The respective annular sealing members include materials having different material quality and are disposed at different positions in an axial direction parallel to a center axis of the shaft.