Motor assembly allowing output in multiple degrees of freedom

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6320284
SERIAL NO

09470077

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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. There is also provided a method of providing force feedback to joystick handle in response to manipulation of the handle by a user. The method includes: providing a motor consistent with the invention for driving the joystick; sensing a position of the joystick; and energizing at least one of the coils based on the sensed position to establish the feedback force against at least a first one of the magnets and the rotor.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ROCKWELL COLLINS, INC.CEDAR RAPIDS, IA1806

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Corcoran, Christopher J Woods Hole, MA 17 105
Fontana, Richard Remo Arlington, MA 58 71

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