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. 24, 2001
Filed:
Feb. 03, 2000
Applicant:
Inventors:
Junichi Saito, Kiryu, JP;
Shunji Kumagai, Kiryu, JP;
Assignee:
Mitsuba Corporation, Gunma-Ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/300 ; H01K 3/906 ;
U.S. Cl.
CPC ...
H02K 1/300 ; H01K 3/906 ;
Abstract
The carbon commutator of the present invention comprises a plurality of segments having ends which are sliding members on a brush and the other ends to which conductive terminal members are attached, wherein the segments are arranged in a circumferential direction on an insulating boss member and are insulated from each other, carbon layers being formed on the sliding member sides of the segments, metal layers being formed between the carbon layers and the conductive terminal members by sintering a first material of a principal component of the conductive terminal member with a second material which can alloy with the first material.