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.

Date of Patent:
Nov. 26, 2024

Filed:

May. 17, 2021
Applicant:

Nok Corporation, Tokyo, JP;

Inventors:

Yuya Sakano, Fukushima, JP;

Yuichi Tarukawa, Fukushima, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C 33/78 (2006.01); F16C 19/18 (2006.01);
U.S. Cl.
CPC ...
F16C 33/7823 (2013.01); F16C 19/18 (2013.01); F16C 33/7883 (2013.01); F16C 2326/02 (2013.01);
Abstract

A sealing device includes a first sealing member and a second sealing member. The first sealing member has a sleeve mounted on an inner member, and a flange. The second sealing member has a tubular portion mounted on the outer member, a disk portion that faces the flange, a radial lip in slidable contact with the sleeve, and a side lip extending from the disk portion and being in slidable contact with the flange. The first sealing member has an annular first protrusion protruding from the flange toward the disk portion. The first protrusion is disposed radially outside the side lip and overlaps the side lip in radial directions. The second sealing member has an annular second protrusion protruding from the disk portion toward the flange. The second protrusion is disposed radially outside the first protrusion and overlaps the first protrusion in radial directions.


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