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:
Oct. 13, 2020
Filed:
Jan. 17, 2019
Komatsu Ltd., Tokyo, JP;
Nok Corporation, Tokyo, JP;
Yoshio Hoshino, Tokyo, JP;
Hisatoshi Odaka, Tokyo, JP;
Kenichi Ajiki, Kitaibaraki, JP;
Takafumi Nakamura, Kitaibaraki, JP;
Yoshiyuki Abe, Mito, JP;
KOMATSU LTD., Tokyo, JP;
NOK CORPORATION, Tokyo, JP;
Abstract
A sealing device includes: an annular seal that is disposed on an outer periphery of a rod of a hydraulic cylinder further on a side of an extending direction than a cylinder head of the hydraulic cylinder and that has a pair of opposing first facing surfaces; a holding member disposed on an outer periphery of the seal; and a fixing member disposed on an outer periphery of the holding member, the fixing member having a tapered inner surface that contacts an outer surface of the holding member and that has an inner diameter increasing toward a retracting direction.