Patents by Inventor Christopher J. Corcoran

Christopher J. Corcoran has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6320284
    Abstract: A motor allowing multiple degrees of output freedom. The motor includes a stator having an interior surface forming at least a portion of a sphere or curved surface and first and second substantially orthogonally positioned stator coils wound on the interior surface. A rotor is fixed to the output shaft and movably supported adjacent the stator with an air gap disposed between the rotor and the stator. The rotor includes a plurality of magnets disposed thereon and is movable along the interior surface in directions defining at least first and second degrees of freedom. Upon energization of the first stator coil, a first magnetic field is established to force at least a first one of the magnets and the rotor in a direction in the first degree of freedom. Upon energization of the second stator coil, a second magnetic field is established to force at least a second one of the magnets and the rotor in a direction in the second degree of freedom.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: November 20, 2001
    Assignee: Engineering Matters, Inc.
    Inventors: Richard Remo Fontana, Christopher J. Corcoran