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US 5,675,197 AGranted
Magnetic eccentric motion motor
AssigneeSarcos Corp.
InventorsStephen C. Jacobsen, Clark C. Davis
Life of this patent
Estimating the term…
Abstract
An eccentric-motion motor for driving a utilization mechanism includes a stator defining a closed surface pathway, an armature composed of a permanent magnet rollably disposed on the closed surface pathway, a series of electromagnetic elements disposed in the stator along the closed surface pathway, circuitry for successively energizing the electromagnetic elements to cause them to attract and/or repel the armature so that it rolls along the closed surface pathway, and a coupler mechanism for coupling the armature to the utilization mechanism so that as the armature is caused to roll, the utilization mechanism is powered by the operation of the motor.
Claims12
An eccentric-motion motor comprising
- a plurality of electromagnets disposed in an array about a closed space, with one pole of each electromagnet positioned in series with the other said one poles to define a closed pathway, and wherein said motor includes a pair of tracks and a pair of ridges formed on the interior surface of the closed pathway,
- a permanent magnet, one pole of which is disposed to roll along the closed pathway, wherein said permanent magnet comprises a bar and a pair of disks mounted on the ends of the bar, said pair of disks disposed to roll in the pair of tracks and being prevented from moving axially by the pair of ridges as the permanent magnet is attracted and/or repelled to roll along the closed pathway, and
- means for selectively energizing the electromagnets to attract and/or repel the permanent magnet, and wherein said energizing means includes means for energizing the electromagnets so that said one poles thereof alternately attract and repel the permanent magnet to cause it to roll along the pathway.
An eccentric-motion motor for driving a utilization mechanism comprising
- a stator defining a continuous closed surface pathway,
- an armature composed of a permanent magnet rollably disposed on the closed surface pathway, and wherein said armature comprises an elongate, generally cylindrical bar whose poles are positioned to roll in pathways adjacent respective aligned poles of the electromagnets,
- a series of electromagnetic elements disposed in the stator at the closed surface, said elements being successively energizable to attract and/or repel the armature to cause it to roll along the closed surface pathway, wherein said electromagnetic elements comprise elongate electromagnets disposed in the stator at spaced-apart locations along the pathway, generally parallel with one another so that poles of the electromagnets are in alignment, for successively receiving electrical current, and wherein each of said electromagnets more specifically comprises
- a pair of ferromagnetic end pieces, each formed as an arc with a generally arcuate inner surface area disposed at the closed surface pathway,
- a ferromagnetic core element joining the end pieces, and
- a conductor wound about the core element for receiving electrical current, wherein said conductor comprises a flat strip of conductive material formed in a helix about the core element,
- means for successively energizing the electromagnetic elements, and wherein said energizing means comprises commutator means for successively supplying electrical current to said electromagnets, and
- means for coupling the armature to the utilization mechanism.
5 more elements
An eccentric-motion motor for driving a utilization mechanism comprising
- a stator defining a continuous closed surface pathway, and wherein said stator includes a pair of tracks spaced apart to circumscribe respective ends of the cylindrical bar,
- an armature composed of a permanent magnet rollably disposed on the closed surface pathway, and wherein said armature comprises an elongate, generally cylindrical bar whose poles are positioned to roll in pathways adjacent respective aligned poles of the electromagnets, and wherein said armature further includes a pair of disks mounted on respective ends of the cylindrical bar to contact and roll on the tracks as the armature is attracted and/or repelled by the electromagnets,
- a series of electromagnetic elements disposed in the stator at the closed surface, said elements being successively energizable to attract and/or repel the armature to cause it to roll along the closed surface pathway, wherein said electromagnetic elements comprise elongate electromagnets disposed in the stator at spaced-apart locations along the pathway, generally parallel with one another so that poles of the electromagnets are in alignment, for successively receiving electrical current,
- means for successively energizing the electromagnetic elements, and wherein said energizing means comprises commutator means for successively supplying electrical current to said electromagnets, and
- means for coupling the armature to the utilization mechanism.
2 more elements
Dependencies are inferred from the claim text.