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, 2024
Filed:
Jun. 02, 2021
Nok Corporation, Tokyo, JP;
Masahiro Seki, Fukushima, JP;
NOK CORPORATION, , JP;
Abstract
A sealing device has a first sealing member and a second sealing member. The first sealing member has a cylindrical part mounted on an outer member, and a lip. The second sealing member has a sleeve into which an inner member is fitted, and a flange extending radially outward. The flange has a rigid flange portion connected to the sleeve, and a circular annular elastic flange portion that adheres to the rigid flange portion. An annular protrusion is formed on an inner periphery of the elastic flange portion, and is in contact with an outer peripheral surface of the inner member. In an initial state, the inner peripheral surface of the protrusion has a cylindrical portion having an inner diameter that is less than that of the sleeve. The cylindrical portion has a length of at least 0.15 mm in the initial state.