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:
Jun. 30, 1998
Filed:
Sep. 25, 1996
Applicant:
Inventors:
Takuzou Mukai, Handa, JP;
Kenzo Mitani, Obu, JP;
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310232 ; 310 43 ;
Abstract
A slip ring is made of a carbonaceous material and a brush is made of a metal. A metal connection bar has an insert member held in the carbonaceous slip ring to make a mechanical and electrical connection without the necessity of an additional member. The slip ring and the connection bar are insert-molded in a slip-ring-support made of a resinous material. The slip-ring-support is press-fitted to a rear portion of the rotor so that the slip ring and the connection bar are fixed to the shaft at the same time. Further, the fan unit having a plurality of fan blades and a fan-supporting-portion is molded integrally with the slip-ring-support.