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:
Jan. 02, 1990
Filed:
Nov. 02, 1987
Applicant:
Inventors:
Assignee:
Mitsubishi Denki K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310239 ; 310 45 ; 310 64 ;
Abstract
A brush device in a rotary electric machine such as a starter motor. Brush accommodating arrangement of the brush device for accommodating brushes and brush springs are provided with a plurality of through-holes to radiate heat therethrough efficiently. The brush device is simple in construction and high in heat resistance.