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:
Aug. 30, 2022
Filed:
Mar. 27, 2018
Eagle Industry Co., Ltd., Tokyo, JP;
Yuichiro Tokunaga, Tokyo, JP;
Hideyuki Inoue, Tokyo, JP;
Wataru Kimura, Tokyo, JP;
Tetsuya Iguchi, Tokyo, JP;
Hidetoshi Kasahara, Tokyo, JP;
Jun Hiromatsu, Tokyo, JP;
Yasuhiro Kuroki, Tokyo, JP;
Ryu Kikuchi, Tokyo, JP;
Abstract
In an exemplary embodiment, a seal device () that seals between a housing () and a rotation shaft () passing through the housing () includes: a floating ring () arranged with a gap h with respect to the rotation shaft (), a seal portion () formed by bringing one end face of the floating ring () into contact with the housing (), and a space portion j provided between the floating ring () and the housing (), and the floating ring () includes bias means that contactlessly biases the floating ring () to the seal portion via the space portion j. The seal device in which the floating ring follows movement of the rotation shaft is capable of exerting a sealing operation so that vibration of the rotation shaft can be reduced.