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. 22, 2008
Filed:
Oct. 26, 2005
Hironori Ando, Kyoto, JP;
Kentaro Takemura, Kyoto, JP;
Kazuto Mikami, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
In a wider flow pathsurrounded with a shaft, a thrust plateand an inner circumferential corner portionof a bearing sleevein a small clearancebetween a lower side radial bearing sectionand an upper surface thrust bearing section, chamfering is performed at the inner circumferential corner portionof the bearing sleeve, wherein a width of the wider flow pathin the radial direction in rotation is formed so as to be wider than a width of a communication holelocated below the wider flow pathin the radial direction in rotation to thereby render a flow of a lubricating fluidflowing into the wider flow pathfrom the communication holesmooth.