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:
Oct. 20, 1981
Filed:
Nov. 20, 1979
Norihiro Ooki, Katsuta, JP;
Shoji Motegi, Hitachi, JP;
Yasuyuki Wachi, Takahagi, JP;
Yoshio Takikawa, Hitachi, JP;
Norio Yamakawa, Ibaraki, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Chemical Co., Ltd., Tokyo, JP;
Abstract
A brush holding apparatus for a rotary electric machine permitting removal and replacement of brushes without stopping the rotation of the rotary electric machine comprises a brush holder which can be detached from a stationary unit, and a securing device for detachably securing the brush holder to the stationary unit. A manipulating lever is provided on the stationary unit to actuate the securing device. The brush holder can easily be mounted on or detached from the stationary unit by the manipulation of the manipulating lever for the puppose of removal and replacement of the brushes while the rotary electric machine is in operation.