Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2006-07-10
2010-12-28
Phan, Thiem (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S596000, C029S598000, C029S605000, C310S179000, C310S198000
Reexamination Certificate
active
07856702
ABSTRACT:
A method for manufacturing an armature including securing a core to the shaft having a plurality of slots extending in the axial direction formed on the outer circumferential surface thereof, forming a coil composed of a plurality of coil portions by simultaneously winding wires a plurality of turns around a pair of slots separated by a predetermined number of slots and offsetting each of the coil portions one slot at a time in the circumferential direction of the core, securing a commutator to the shaft having a plurality of segments, adjacent coil portions having a slot along one side thereof, wherein a number of vacant slots between adjacent ones of the coil portions within each of simultaneously-wound coil portion groups is nonuniform, and electronically connecting segments which should have the same electric potential by means of equalizing connectors so that each of pairs of the coil portions that should have the same electric potential has a substantially equal electric potential.
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Daikoku Akihiro
Imagi Akihiko
Tanaka Toshinori
Tsumura Mitsuyuki
Yamamoto Kyouhei
Mitsubishi Denki & Kabushiki Kaisha
Phan Thiem
Sughrue & Mion, PLLC
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