Electrical generator or motor structure – Dynamoelectric – Linear
Reexamination Certificate
2008-05-09
2009-11-10
Tamai, Karl I (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Linear
C310S012060, C104S290000, C318S135000
Reexamination Certificate
active
07615894
ABSTRACT:
A high voltage, low current electric motor. The motor comprises a drive shaft turned by a sprocket that is driven by an assembly of electromagnets. A carrier supporting permanent magnets travels in a tubular track formed into an endless loop around the sprocket. The carrier preferably comprises a chain formed of interconnected links, each link housing a magnet. The tubular track is non-ferrous and forms a core for a plurality of coils spaced around the tube. A sequencing circuit in the motor sequentially energizes the coils to cause the carrier to circulate around the tube by repelling and attracting the magnets. Teeth on the sprocket engage the chain so that as the chain travels through the tube the sprocket is rotated. Preferably, the coils are double-wound so that a direction control circuit may be included to selectively reverse the direction of the carrier's travel. Speed control also may be included.
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Lee Mary M.
Tamai Karl I
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