Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1997-02-19
1999-03-16
Ramirez, Nestor
Electrical generator or motor structure
Dynamoelectric
Rotary
40426, 74 57, 335229, 335306, 446129, 446131, H02K 709, H01F 702
Patent
active
058834540
ABSTRACT:
An electromagnetic drive apparatus and method are operative to rotate a magnetically levitated object for an indefinite period of time. The object, such as a spinning magnetic top with a spindle, is levitated over a base magnet and a horizontal component of a pulsed magnetic field is applied at the region of the spinning magnetic top to maintain the top spinning and levitating indefinitely. The pulsed magnetic field is generated by applying a pulsed dc voltage or an ac current to a coil situated in proximity to the top. The coil may have a cylindrical or oblong shape and a core may be provided in the coil. Levitation stability and duration are improved by positioning a loosely fitting washer on the spindle of the spinning magnet so as to permit relative rotation therebetween during application of the pulsed magnetic field.
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Hones Edward W.
Hones William G.
Creative Gifts, Inc.
Mullins Burton S.
Ramirez Nestor
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