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:
Feb. 26, 2013
Filed:
Aug. 05, 2011
Junya Mizukami, Kyoto, JP;
Takayuki Oe, Kyoto, JP;
Yoichi Sekii, Kyoto, JP;
Naoki Sabashi, Kyoto, JP;
Takehito Tamaoka, Kyoto, JP;
Takashi Yamamoto, Kyoto, JP;
Shigeki Horiki, Kyoto, JP;
Kazushi Miura, Kyoto, JP;
Mitsuhiro Takemoto, Kyoto, JP;
Junya Mizukami, Kyoto, JP;
Takayuki Oe, Kyoto, JP;
Yoichi Sekii, Kyoto, JP;
Naoki Sabashi, Kyoto, JP;
Takehito Tamaoka, Kyoto, JP;
Takashi Yamamoto, Kyoto, JP;
Shigeki Horiki, Kyoto, JP;
Kazushi Miura, Kyoto, JP;
Mitsuhiro Takemoto, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
In a motor, an annular radially extending gap is defined between an outer annular surface and a lower surface of an annular cover portion. The radially extending gap has an axial width smaller than a maximum width of an upper seal portion defined between an outer circumferential surface of an upper thrust portion and an inner circumferential surface of a tubular portion. An annular axially extending gap is defined between an inner cylindrical surface and a radially inner edge of the annular cover portion. The axially extending gap has a radial width smaller than the maximum width of the upper seal portion.