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:
Apr. 30, 2002
Filed:
May. 04, 2000
Applicant:
Inventors:
Assignee:
Tokyo Parts Industrial Co., Ltd., Isesaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 7/08 ;
U.S. Cl.
CPC ...
H02K 7/08 ;
Abstract
A brushless motor having a resin bearing including a rotor with an integral output device at one side of a rotor case and a magnet at the other side, a shaft supporting the rotor, a resin bearing supporting the shaft for rotating, a stator base incorporating the resin bearing, a stator for driving the rotor, and an oil containing portion in the resin bearing. The oil containing portion includes grooves, a concave portion, and an oil barrier device located at the resin bearing, so the number of parts as well as the cost is reduced and a simple structure prevents the oil from leaking.