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:
Jul. 09, 2019
Filed:
Dec. 10, 2015
Uchiyama Manufacturing Corp., Okayama, JP;
Kentaro Ohmori, Okayama, JP;
UCHIYAMA MANUFACTURING CORP., Okayama, JP;
Abstract
A sealing device provided between an outer member and an inner member that coaxially rotates relative to the outer member. The sealing device includes a first member in a form of a double cylinder being fitted onto the inner member; and a second member including a core member that is fitted into the outer member and a seal lip portion made of elastic material that is fixed to the core member and elastically contacts the first member, the first member and the second member being combined. The first member includes an inner diametrical side cylindrical portion and an outer diametrical side cylindrical portion that extend toward the second member in an axial direction. The outer diametrical side cylindrical portion of the first member has a first labyrinth portion and a second labyrinth portion between the outer diametrical side cylindrical portion and the second member, the first labyrinth portion being provided in the axial direction, the second labyrinth portion being provided in a radial direction and connected to the first labyrinth portion, the first labyrinth portion being equal to or more than 1.5 mm in length along a shaft.