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:
May. 26, 2014
Nok Corporation, Tokyo, JP;
Koji Watanabe, Kitaibaraki, JP;
Kazunari Seki, Kitaibaraki, JP;
NOK CORPORATION, Tokyo, JP;
Abstract
A seal ring () makes contact with a low-pressure-side (L) side wall surface of an annular groove () and slides against an inner circumferential surface of a shaft hole of a housing () through which a shaft () is inserted. The seal ring includes a pair of recessed portions () extending in a circumferential direction on an outer surface, wherein a distance between a side surface on one side of a protruding portion () that is disposed between the pair of recessed portions () and a side surface on another side of the seal ring (), and a distance between a side surface on another side of the protruding portion () and a side surface on one side of the seal ring () are set to be shorter than a distance between an inner circumferential surface of the seal ring and an outer circumferential surface of the protruding portion ().