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. 17, 2012
Filed:
Oct. 31, 2011
Satoshi Yamanaka, Fukushima, JP;
Takehiro Nakagawa, Fukushima, JP;
Masayuki Tanida, Fukushima, JP;
Hideharu Hyakutake, Fukushima, JP;
Hiroki Matsui, Fukushima, JP;
Hideyuki Furuyama, Fukushima, JP;
Go Kanzaki, Fukushima, JP;
Shinya Takeda, Fukushima, JP;
Kei Sasaki, Fukushima, JP;
Akira Yamaguchi, Fukushima, JP;
Satoshi Yamanaka, Fukushima, JP;
Takehiro Nakagawa, Fukushima, JP;
Masayuki Tanida, Fukushima, JP;
Hideharu Hyakutake, Fukushima, JP;
Hiroki Matsui, Fukushima, JP;
Hideyuki Furuyama, Fukushima, JP;
Go Kanzaki, Fukushima, JP;
Shinya Takeda, Fukushima, JP;
Kei Sasaki, Fukushima, JP;
Akira Yamaguchi, Fukushima, JP;
NOK Corporation, Minato-ku, Tokyo, JP;
Abstract
To improve durability of a seal lip () of an oil seal () in slidably contact with the peripheral surface of a shaft (), a lubricating oil supply section () for collecting adhered oil and dropping it on the shaft () is provided at a forward end portion of an installation section (), the lubricating oil supply section () has projections () formed on the inner peripheral surface of the installation section () to collect oil on the surface thereof, the surface of each projection () has a recess () for temporarily accumulating oil, guidance projections, or a slope for collecting the oil, and dams are formed on a forward end face () of the installation section () to block the oil flowing down along the circumferential direction on the forward end face () and guides the oil toward each projection ().