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. 21, 2026
Filed:
Mar. 28, 2022
Nok Corporation, Tokyo, JP;
Atsushi Ikeda, Ibaraki, JP;
NOK CORPORATION, , JP;
Abstract
A sealing device is arranged between a high-pressure space and a low-pressure space next to each other along an axial direction of a rod, and seals a gap between an outer circumferential surface of the rod and an inner circumferential surface of a housing through which the rod can be inserted. The sealing device has an annular member mounted to the housing and a seal member, at which the seal member is mounted to the annular member, projects toward the outer circumferential surface of the rod, and is contactable with the outer circumferential surface of the rod. The seal member has an outer circumferential portion arranged radially outwardly and an inner circumferential portion arranged radially inwardly. The seal member is deformable in a curved shape such that a portion contactable with the outer circumferential surface of the rod projects toward the low-pressure space in the axial direction of the rod.