Electrical generator or motor structure – Dynamoelectric – Linear
Reexamination Certificate
2006-03-14
2006-03-14
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Linear
C381S414000, C381S412000, C381S420000
Reexamination Certificate
active
07012345
ABSTRACT:
The present invention provides an electromagnetic drive motor assembly (EDMA) that has an inner flux return assembly formed from an upper pole piece and a lower pole piece oppositely disposed relative to each other along the center of the EDMA. An annularly positioned conductive ring (or flux stabilization ring) encircles the inner flux return assembly, concentrically in contact with the outside of the inner flux return assembly. Along the exterior side of the flux return pieces, is a magnet that is between a top plate and a bottom plate. Each plate contacts with the magnet to form a magnetically conductive system. A magnetic gap is formed in between the inner flux return assembly and the top and bottom plates. Disposed within the magnetic gap is a dual coil wound around a cylinder. The dual coil includes a first coil portion and a second coil portion. To minimize the modulation, the top and bottom plates may be saturated and plate tips may be provided near the magnetic gap. And to dissipate heat away from the magnetic gap, a thermal radiating conductive ring may be provided as well.
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Button Douglas J.
Moro Jerry
Harman International Industries, Inc.
Jones Judson H.
Schuberg Darren
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