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:
Feb. 22, 1994
Filed:
Oct. 16, 1992
Shigeru Shiroyama, Himeji, JP;
Akira Kuragaki, Himeji, JP;
Mitsubishi Denki Kabushik Kaisha, Tokyo, JP;
Abstract
The brush holder 12 of a brush device for a d.c. machine is provided with plural pairs of brush boxes 12a each having an open front portion and an open inner diameter portion, and a pair of projections 12d at outer portions; lead wires 14a, 14b for each pair of brushes 13a and 13b have such length that they can avoid interference with the projections 12d, and the brushes 13a, 13b can be fitted to the brush boxes 12 from the front side and in the axial direction of the brush holder 12; brush springs 15 are put at the top portion of the brushes 13a, 13b; and an insulating plate 16 is attached to the front of the brush holder 12, whereby assembling work for the brushes 13a, 13b can be automated.