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:
Mar. 20, 2012
Filed:
Feb. 02, 2007
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, Tokyo, JP;
Abstract
A seal lip of an oil seal is in slidable contact with a 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.