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:
Apr. 28, 2020
Filed:
Oct. 26, 2018
Nok Corporation, Tokyo, JP;
Toru Nakashima, Tottori, JP;
Hiroyuki Uekusa, Tottori, JP;
NOK CORPORATION, Tokyo, JP;
Abstract
A sealing structure includes a hub, an outer-periphery-side mass body, an outer-periphery-side damper elastic body, an inner-periphery-side mass body, and an inner-periphery-side damper elastic body. The hub is attached to one end of a rotary shaft of an object to be attached. The oil seal includes a seal lip in an annular shape and a side lip in an annular shape and is oriented to the inner-periphery-side mass body, is attached in a through hole in the object to be attached, and hermetically seals a void between the hub and the object to be attached. The inner-periphery-side mass body forms at least a part of a pocket which is composed of a recessed portion in an annular shape, and the side lip forms a labyrinth seal which is composed of a gap in an annular shape between the side lip and the pocket.