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:
Sep. 29, 2020
Filed:
Jul. 17, 2018
Nok Corporation, Minato-ku, Tokyo, JP;
Kazunori Jinbo, Kitaibaraki, JP;
NOK CORPORATION, Minato-Ku, Tokyo, JP;
Abstract
A sealing device that is applicable to high-speed rotation applications and has an increased pressure resistance is provided. The sealing device includes: a first side discharge valve located on a first side, on which a fluid is to be sealed, of an outer circumferential sealing surface, the first side discharge valve extending radially outward toward the first side for allowing a gas in a space between an inner circumferential surface of a housing and an outer circumferential sealing surface to be discharged toward the first side while blocking a gas from entering the space from the first side; and a second side discharge valve located on an atmosphere side that is opposite to the first side with respect to the outer circumferential sealing surface, the second side discharge valve extending radially outward toward the atmosphere side for allowing the gas in the space to be discharged toward the atmosphere side while blocking a gas from entering the space from the atmosphere side.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile