Direct-drive field actuator motors
First Claim
Patent Images
1. A motor, comprising:
- a stator member carrying a first field actuator drive means adapted to vary in at least one dimension responsive to application or removal of an energy field;
a rotor element hinged to said stator member and rotatably movable about said hinge with respect to said stator member;
a first drive shoe in contact with said first field actuator drive means, adjacent said rotor element and movable responsive to said dimensional variance of said first field actuator to effect rotational movement of said rotor element relative to said stator member; and
an energy source for providing a said energy field.
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Abstract
A high-torque, low speed, positive-drive field actuator motor including a stator carrying at least one field actuator which changes in dimension responsive to application of an energy field, and at least one drive shoe movable by the dimensional changes of the field actuator to contact and move a rotor element with respect to the stator. Various embodiments of the motor are disclosed, and the rotor element may be moved linearly or arcuately.
74 Citations
31 Claims
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1. A motor, comprising:
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a stator member carrying a first field actuator drive means adapted to vary in at least one dimension responsive to application or removal of an energy field; a rotor element hinged to said stator member and rotatably movable about said hinge with respect to said stator member; a first drive shoe in contact with said first field actuator drive means, adjacent said rotor element and movable responsive to said dimensional variance of said first field actuator to effect rotational movement of said rotor element relative to said stator member; and an energy source for providing a said energy field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A motor, comprising:
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a stator member carrying a first field actuator drive means adapted to vary in at least one dimension responsive to application or removal of an energy field; a rotor element movable with respect to said stator member; a first drive shoe in contact with said first field actuator drive means and movable responsive to said dimensional variance of said first field actuator; an energy source for providing a said energy field; a rotary drive element associated with said rotor element, said rotary drive element having a drive surface adjacent said first drive shoe, said rotary drive element being rotatable from a first position to a second position responsive to contact of said drive surface by said first drive shoe; and clamping structure for selectively clamping said rotary drive element to said rotor element. - View Dependent Claims (12, 13, 14, 15, 29, 30)
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16. A motor comprising:
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a stator member carrying a first and a second field actuator drive means, each of said drive means adapted to vary in at least one dimension responsive to the application or removal of an energy field; an energy source for providing a said energy field; a rotor element movable with respect to said stator member; a first drive shoe in contact with said first and said second field actuator drive means, adjacent said rotor element and movable responsive to said dimensional variances of said first and said second field actuator drive means into and out of contact with said rotor element to effect movement thereof relative to said stator member; and biasing means for maintaining said first drive shoe in contact with at least one of said first and second field actuator drive means during said dimensional variances thereof. - View Dependent Claims (17, 18, 19, 20, 21, 22, 26)
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23. A motor, comprising:
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a stator member carrying a first field actuator drive means adapted to vary in at least one dimension responsive to application or removal of an energy field; a rotor element movable with respect to said stator member; a first linear reciprocable drive element in contact with said first field actuator drive means and linearly movable responsive to said dimensional variance of said first field actuator drive means; a first clamping structure for selectively clamping said rotor element to said first reciprocable drive element; and an energy source for periodically subjecting said first field actuator drive means to a said energy field. - View Dependent Claims (24, 25, 31)
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27. A motor, comprising:
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a stator member carrying a first field actuator drive means adapted to vary in at least one dimension responsive to application or removal of an energy field; an energy source for providing a said energy field; a rotor element movable with respect to said stator member; a first drive shoe in contact with said first field actuator drive means and movable responsive to said dimensional variance of said first field actuator to effect movement thereof relative to said stator member; and a first field actuator clamping means and a first clamping shoe in contact therewith and with said first drive shoe, said first field actuator clamping means being adapted to vary in at least one dimension responsive to application or removal of an energy field to move said first drive shoe into contact with said rotor element through said first clamping shoe. - View Dependent Claims (28)
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Specification