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:
Dec. 13, 1983
Filed:
Oct. 13, 1981
Applicant:
Inventor:
Takaichi Mabuchi, Matsudo, JP;
Assignee:
Mabuchi Motor Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310220 ; 310238 ;
Abstract
A small electric motor having an insulating cylinder fixedly fitted to a rotating shaft of a motor rotor, a plurality of commutator segments disposed at equal spacing in the angular positional direction of the insulating cylinder and brushes for making sliding contact with the cummutator segments. Each of the commutator segments has a commutator terminal formed by bending an end of the segment and led out for external connection. The insulating cylinder has an enlarged diameter portion, on which adhesive reservoirs are provided. An electrically conductive adhesive is injected into the reservoirs and deposited in such a manner as to bridge the adjoining commutator segments.