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:
Jun. 23, 2026
Filed:
Nov. 24, 2022
Nok Corporation, Tokyo, JP;
Hiroshi Onodera, Fukushima, JP;
Takayuki Aihara, Fukushima, JP;
NOK CORPORATION, , JP;
Abstract
A sealing device is provided to achieve sealing between an outer-periphery-side member and an inner-periphery-side member that are able to relatively rotate, and includes: an outer seal member to be attached to the outer-periphery-side member; and an inner seal member to be attached to the inner-periphery-side member. The outer seal member includes an annular member that includes an inner tubular portion extending along an axis direction and a seal lip portion that slide-contacts the inner seal member on a side closer to an internal space than the annular member. The inner seal member includes an inner contact portion that includes a plurality of protrusions and slide-contacts the inner tubular portion. A length of a region of the inner contact portion where the plurality of protrusions are formed is longer than a minimum interval between facing portions of the outer seal member and the inner seal member.