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. 18, 2019
Filed:
Jun. 30, 2016
Ihi Corporation, Koto-ku, JP;
Rei Mihara, Tokyo, JP;
Tomoya Kakuta, Tokyo, JP;
IHI Corporation, Koto-ku, JP;
Abstract
A seal mechanism that is provided with an annular resin seal lip which is disposed coaxially with a shaft and is brought into contact with a circumferential surface of the shaft. The seal mechanism is provided with a stopper that is provided in a metallic housing surrounding the shaft and is disposed between the shaft and a portion of the seal lip other than the edge portion coming into direct contact with the shaft while spaced apart from the circumferential surface of the shaft. The stopper is made of a material having a thermal expansion coefficient smaller than that of a material of which the seal lip is formed, and an axis of the seal lip is caused to correspond to an axis of the shaft by coming into contact with the seal lip which is reduced in diameter at the time of cooling.