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Patent US4874346A successfully refreshed from Google Patents.
US4874346A
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US
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Free flying magnetic levitator
Assignee: Individual
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Filing: 1988-01-06
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Granted: 1989-10-17
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Expires: 2008-01-06
Abstract
Abstract A free flying magnetic levitator that is self stabilized and fully maneuverable for magnetic structure establishing an odd number of poles for interaction with another magnetic field having an even number of poles to produce linear motion instead of rotation without a guideway. Longitudinally wound coils produce the odd pole magnetic field for maximizing coupling with an even pole field such as the magentic field of the earth.
Inventors
- 👤 How Wachspress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:16
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/26
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
148 words
A free flying magnetic levitator adapted for disposition in an external surrounding dipole magnetic field having substantially parallel lines of force and comprising at least a first pair of axially elongated toroidally wound magnet windings with each having a tapered configuration from a small diameter and to an outer large diameter end and said windings being disposed axially of each other with the small diameter ends contiguous to form a tripole magnet, and means for controllably energizing said magnetic windings by current flowing between the small diameter ends and the large diameter ends to establish a magnetic field having like magnetic poles at the outer large diameter ends whereby the energized pair of magnet windings produce a tripole magnetic field having a dipole vector potential field generating forces of interaction with the external surrounding the dipole magnetic field for moving the levitator in the surrounding dipole magnetic field.
Claim 2
Dependent Claim
148 words
A free flying magnetic levitator adapted for disposition in an external surrounding dipole magnetic field having substantially parallel lines of force and comprising at least a first pair of axially elongated toroidally wound magnet windings with each having a tapered configuration from a small diameter and to an outer large diameter end and said windings being disposed axially of each other with the small diameter ends contiguous to form a tripole magnet, and means for controllably energizing said magnetic windings by current flowing between the small diameter ends and the large diameter ends to establish a magnetic field having like magnetic poles at the outer large diameter ends whereby the energized pair of magnet windings produce a tripole magnetic field having a dipole vector potential field generating forces of interaction with the external surrounding the dipole magnetic field for moving the levitator in the surrounding dipole magnetic field.
Claim 3
Dependent Claim
80 words
The levitator of claim 1 further defined by a second pair of tapered elongated toroidal magnet windings disposed in axial alignment with the small diameter ends thereof contiguous to form a second tripole magnet and the axis of said second pair of magnet windings being disposed perpendicularly to the axis of said first pair of magnet windings, and means for controllably energizing said second pair of magnet windings for controlling motion of said levitator in said surrounding dipole magnetic field.
Claim 4
Dependent Claim
69 words
The levitator of claim 1 further defined by said magnet windings each comprising a frusto-conical form having an insulated conductor disposed upon an outer surface thereof and extending back and forth between the ends thereof about the circumference of the form and having electrical connections to opposite ends of the conductor at opposite ends of the form for electrical energization to generate a toroidal magnetic field about said windings.
Claim 5
Dependent Claim
58 words
The levitator of claim 1 further defined by each of said magnet windings comprising a hollow frusto-conical form and an insulated conductor wound longitudinally of said form about the inner and outer surfaces thereof in successive turns whereby energization of said windings produces a toroidal magnetic field thereabout having a differential field strength between ends of said form.
Claim 6
Dependent Claim
80 words
The levitator of claim 1 further defined by an envelope about said windings, liquid helium disposed in said envelope for boiling out of a vent of said envelope to maintain a very low temperature interiorly thereof, at least one pair of said magnet windings being comprised of a superconducting material having substantially zero resistance at said low temperature, and means circulating a very large current through said windings for maximizing the magnetic force of interaction with said surrounding magnetic field.
Claim 7
Dependent Claim
80 words
The levitator of claim 5 further defined by a second pair of like elongated toroidally wound windings in axial alignment with tapered configurations and contiguous small ends, said second pair of windings being formed of insulated conductors that exhibit electrical resistance at said low temperature, said second pair of windings being disposed orthogonally to said first pair of windings, and means for controllably energizing said second pair of windings for controlling motion of said levitator in said surrounding magnetic field.
Claim 8
Dependent Claim
103 words
The levitator of claim 2 further defined by said means for controllably energizing said windings comprising an amplifier connected across each of said windings, a potentiometer connected across the input of each of said amplifiers to control current through each of said windings separately, a magnet control potentiometer connected to said amplifiers through the potentiometers thereof to vary the relative current through said first and second pairs of magnet windings, and a polarity control potentiometer connected across a power source and connected to said magnet control potentiometer for controlling the polarity of current flow through said first and second pairs of magnet windings.
Claim 9
Dependent Claim
31 words
The levitator of claim 7 further defined by a plurality of signal generators with each having control means and connected to said electromagnets for modulating currents passed through said magnet windings.
Claim 10
Dependent Claim
26 words
The levitator of claim 1 further defined by the windings of said tripole magnet having the tapered configurations thereof conforming to hyperbolic horns with contiguous throats.
Claim 11
Dependent Claim
39 words
The levitator of claim 1 further defined by said windings being formed of insulated conductors having a coating thereon with a magnetic permeability intermediate the permeability of the windings and the permeability of a source of said magnetic field.
Claim 12
Dependent Claim
23 words
The levitator of claim 10 further defined by said coating also having a magnetic permeability near that of a medium about said levitator.
Claim 13
Dependent Claim
75 words
The levitator of claim 1 further defined by said magnet windings comprising a pentapole magnet having a plurality of four tapered winding sections with the large diameter ends thereof disposed substantially upon separate surfaces of a tetrahedron and the small diameter ends connected together at the center of said tetrahedron and said means energizing said windings connected to pass current through each of said windings to establish like poles at the center of said tetrahedron.
Claim 14
Dependent Claim
55 words
The levitator of claim 1 further defined by said pair of magnet windings being disposed upon an elongated cylinder having means for rotating the ends thereof to twist the windings into a pair of frusto-conical sections having contiguous small ends for controlling the taper of said windings from the large to the small ends thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-16 | 1993-04-17 | 1993-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-16 | 1997-04-17 | 1997-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-16 | 2001-04-17 | 2001-10-17 | $7700.00 | Window Closed / Lapsed |