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:
May. 06, 2014
Filed:
Aug. 18, 2010
Takehiro Nakagawa, Tokyo, JP;
Akihiro Sato, Tokyo, JP;
Tetsuo Tasaki, Tokyo, JP;
Hiromi Takahashi, Tokyo, JP;
Junya Hoshi, Tokyo, JP;
Hiroshi Okubo, Tokyo, JP;
Masahiro Anzai, Tokyo, JP;
Takehiro Nakagawa, Tokyo, JP;
Akihiro Sato, Tokyo, JP;
Tetsuo Tasaki, Tokyo, JP;
Hiromi Takahashi, Tokyo, JP;
Junya Hoshi, Tokyo, JP;
Hiroshi Okubo, Tokyo, JP;
Masahiro Anzai, Tokyo, JP;
NOK Corporation, Tokyo, JP;
Abstract
A lip type end face sealing device having excellent sealability to different kinds of liquids on both sides in the axial direction and having excellent durability. A case is tight fitted to an inner peripheral face of a housing and includes case members. One pair of seal lips is integrally fitted to inner peripheral flange parts, positioned oppositely each other in the axial direction, and opened in a tapered shape. One pair of the seal lips is slidably contacted with flange parts of slingers tight fitted to an outer periphery of a rotary shaft. Pressure in seal internal spaces between the seal lips is released through a vent hole.