Apparatus and method for controlling movement of an object through a medium using a magnetic field
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United States of America Patent
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Jan 11, 2005
Grant Date -
Dec 12, 2002
app pub date -
Mar 27, 2002
filing date -
Apr 5, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Apparatus and method for controlling movement of an object through a medium using a magnetic field by combining the magnetic field of a primary electromagnetic coil having a central axis with the magnetic fields of a plurality of secondary electromagnetic coils having axes generally parallel to the central axis of the primary coil and positioned within the primary coil to produce an operational magnetic field by which movement of the object in a medium is controlled outside of the primary coil.
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