Patents Assigned to Magnetic Revolutions Limited, L.L.C
  • Patent number: 6342746
    Abstract: A permanent magnet device includes a permanent magnet having north and south pole faces with a first pole piece positioned adjacent one pole face thereof and a second pole piece positioned adjacent the other pole face thereof so as to create at least two potential magnetic flux paths. A first control coil is positioned along one flux path and a second control coil is positioned along the other flux path, each coil being connected to a control circuit for controlling the energization thereof. The control coils may be energized in a variety of ways to achieved desirable motive and static devices, including linear reciprocating devices, linear motion devices, rotary motion devices and power conversion.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: January 29, 2002
    Assignee: Magnetic Revolutions Limited, L.L.C.
    Inventor: Charles J. Flynn
  • Patent number: 6246561
    Abstract: A permanent magnet device includes a permanent magnet having north and south pole faces with a first pole piece positioned adjacent one pole face thereof and a second pole piece positioned adjacent the other pole face thereof so as to create at least two potential magnetic flux paths. A first control coil is positioned along one flux path and a second control coil is positioned along the other flux path, each coil being connected to a control circuit for controlling the energization thereof. The control coils may be energized in a variety of ways to achieved desirable motive and static devices, including linear reciprocating devices, linear motion devices, rotary motion devices and power conversion.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: June 12, 2001
    Assignee: Magnetic Revolutions Limited, L.L.C
    Inventor: Charles J. Flynn
  • Patent number: 5710493
    Abstract: The present invention relates to a control circuit for a motor, the motor including a rotor having a non-magnetic body portion and a peripheral portion, the peripheral portion being formed on permanently magnetized material, one arcuate portion thereof having north magnetic pole and another arcuate portion having south magnetic pole, a pair of motor coils, a diode bridge circuit having opposed input connections and opposed output connections, a circuit for connecting the respective opposed input connections of the bridge circuit in series with the pair of coils across an alternating current source, a first circuit portion connected across the opposed output connections of the diode bridge circuit including a controllable switch device having a control gate, circuitry to control the voltage applied to the control gate to control the conducting condition thereof and hence current flow through the pair of coils, circuit means including first and second parallel circuits each having a resistor in series with a di
    Type: Grant
    Filed: August 25, 1995
    Date of Patent: January 20, 1998
    Assignee: Magnetic Revolutions Limited, L.L.C.
    Inventor: Charles J. Flynn
  • Patent number: 5455474
    Abstract: The present invention relates to an apparatus having spaced permanent magnets positioned so that there is magnetic interaction between them, and controlling the interaction by having a coil in the space between the permanent magnets connected to a source of electric potential and a controllable switch in series such that closing the switch places a voltage across the coil and predeterminately affects the magnetic interaction between the spaced permanent magnets. The invention also teaches mounting one of the permanent magnets on a rotatable structure so that the spaced permanent magnets can move relative to each other, the controllable switch operating to control the application of electric potential across the coil in such a manner as to produce relative rotational movement between the spaced permanent magnets.
    Type: Grant
    Filed: June 23, 1992
    Date of Patent: October 3, 1995
    Assignee: Magnetic Revolutions Limited L.L.C.
    Inventor: Charles J. Flynn