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. 02, 2013
Filed:
Oct. 06, 2009
Takehiro Nakagawa, Fukushima, JP;
Takehiro Nakagawa, Fukushima, JP;
NOK Corporation, , JP;
Abstract
To improve sealing performance, a sealing device comprises an oil seal () mounted to a non-rotating housing (), and a dust cover () mounted to a rotating body () outside the oil seal (), one of the oil seal () and the dust cover () facing each other has an external seal lip () slidably in close contact with the other of them () outside the slide sections (S, S) between the oil seal () and the rotating body (), the oil seal () and the dust cover () have non-contact lips () which are positioned outside the slide sections (S, S) and inside the external seal lip (), have substantially conical tubular shapes becoming larger in diameter toward the tips thereof, and are loosely inserted to each other, and a labyrinth seal () is provided at the outer diameter side of the external seal lip ().