Dennison, Meserole, Pollack & Scheiner
Electric motor brush assembly adaptable to different stators
 An electric motor includes a commutator and a brush assembly. The brush assembly includes a pair of brushes, each disposed in operative relation to the commutator, a pair of brush holders each supporting at least one of the brushes, and an assembly base (69, 74) for securing the brush holders thereto. The assembly base includes a base plate of insulating material and at least two severable conductive passages (71, 72) each secured to the base plate. The conductive passages are adapted to supply electric current to the pair of brushes from different directions and drive the electric motor for rotation in either forward or reverse direction when either one of the passages is severed for permitting use of a single brush assembly in different kinds of motors. 
Makita Electric Works, Ltd.
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Y10T H01R H02K H02K
additional inventional inventional inventional
Tetsuya Kenji Akira Fusao
Sawa Yoshida Naitoh Fushiya