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:
Jul. 01, 2025
Filed:
Oct. 15, 2021
Applicant:
Nok Corporation, Tokyo, JP;
Inventors:
Tatsuya Mori, Fukushima, JP;
Yu Yamaguchi, Fukushima, JP;
Masamichi Kishiro, Fukushima, JP;
Toshiaki Yamauchi, Fukushima, JP;
Assignee:
NOK CORPORATION, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F 9/36 (2006.01); F16J 15/18 (2006.01); F16J 15/3232 (2016.01);
U.S. Cl.
CPC ...
F16F 9/36 (2013.01); F16J 15/18 (2013.01); F16J 15/3232 (2013.01); F16F 2230/30 (2013.01);
Abstract
A sealing device includes a seal housing disposed between a cylinder and a rod, an inner seal disposed between the rod and the seal housing, the inner seal being in contact with the rod, and an outer seal disposed between the inner seal and the seal housing, the outer seal being in contact with both the inner seal and the seal housing, in which one of the outer seal and the seal housing has a contact face that is in contact with the other of the outer seal and the seal housing, and the contact face has a concave portion.