Patent US4838169A successfully refreshed from Google Patents.
US4456858A
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US
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Permanent magnetic A.C.-D.C. motor
Assignee: Individual
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Filing: 1981-10-15
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Granted: 1984-06-26
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Expires: 2001-10-15
Abstract
Abstract Disclosed is a rotary machine powered by magnetic fields and comprises at least one fixed and at least one movable permanent magnetic member which have a curvilinear surface adapted to provide mutually eccentric magnetic fields and which operate to rotate the movable member with respect to the fixed member until a magnetic equilibrium position is reached, at which time means are included to rotate the movable member away from the equilibrium position, whereupon the eccentric fields again interact to cause rotation. The curvilinear surfaces are in the form of a spiral which expand in an arithmetic or geometric progression and are poled to provide alternatively either attractive or repulsive forces between opposing faces of the magnetic members.
Inventors
- 👤 James F. Loven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:04
CPC Classifications
H; H02; H02K; H02K29/00; H02K29/06; H02K29/10
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
138 words
A rotary permanent magnet machine receiving rotational power from the interaction of at least two permanent magnetic fields, comprising in combination: at least two adjacent coaxial permanent magnetic members, one of which is fixed and the other of which is rotatably movable, said magnetic members each comprising mutually reverse spiral-like curvilinear magnet configurations of selective polarity and having surfaces the outer edges of which have a radius which expands in an arithmetic or geometric progression to provide interacting mutually repulsing or attracting magnetic fields which rotate the rotatable movable member to a position of field equilibrium; and means for rotating the rotatably movable member past the position of magnetic field equilibrium to an eccentric field condition whereupon continued rotation is caused by said interacting fields until the position of field equilibrium is reached in the subsequent rotational period.
Claim 2
Dependent Claim
138 words
A rotary permanent magnet machine receiving rotational power from the interaction of at least two permanent magnetic fields, comprising in combination: at least two adjacent coaxial permanent magnetic members, one of which is fixed and the other of which is rotatably movable, said magnetic members each comprising mutually reverse spiral-like curvilinear magnet configurations of selective polarity and having surfaces the outer edges of which have a radius which expands in an arithmetic or geometric progression to provide interacting mutually repulsing or attracting magnetic fields which rotate the rotatable movable member to a position of field equilibrium; and means for rotating the rotatably movable member past the position of magnetic field equilibrium to an eccentric field condition whereupon continued rotation is caused by said interacting fields until the position of field equilibrium is reached in the subsequent rotational period.
Claim 3
Dependent Claim
14 words
The rotary machine as defined by claim 1 wherein said surfaces comprise planar surfaces.
Claim 4
Dependent Claim
37 words
The rotary machine as defined by claim 1 wherein the arithmetic or geometric progression of the radius of one member expands in a clockwise direction while the radius of the other member expands in a counterclockwise progression.
Claim 5
Dependent Claim
90 words
The rotary machine as defined by claim 3 wherein said progression comprises an arithmetic progression expressed in x and y rectilinear coordinates as: y=sin θ(R.sub.o ±nθ/θ.sub.D) x=cos θ(R.sub.o ±nθ/θ.sub.D) where R o is the base radius, θ is any angle between 0° and 360°, θ D is a unit span of progression and comprises 360° divided by an integer, n is a linear measurement of the change in radius over the unit span of progression, and wherein the + defines a counterclockwise progression while the - defines the clockwise progression.
Claim 6
Dependent Claim
130 words
The rotary machine as defined by claim 3 and wherein said progression in a counterclockwise direction comprises a geometric progression expressed in x and y rectilinear coordinates as: y=sin θ [R.sub.o +2.sup.m nθ/θ.sub.D (m+1)] x=cos θ [R.sub.o +2.sup.m nθ/θ.sub.D (m+1)] and wherein said progression in a clockwise direction comprises a geometric progression expressed as: y=sin θ [R.sub.o +2.sup.m n(θ.sub.D (m+1)/θ)] x=cos θ [R.sub.o +2.sup.m n(θD(m+1)/θ)] where R o is the base radius, θis any angle between 0° and 360°, θ D is a unit span of progression and comprises 360° divided by an integer, m is a selected member of angular divisions of 360° and progresses in value for each succeeding angular division, and n is a linear measurement of the change in radius over the unit span of progression.
Claim 7
Dependent Claim
35 words
The rotary machine as defined by claim 3 wherein mutually opposing surfaces of said adjacent magnetic members exhibit the same magnetic polarity whereupon mutually repulsive eccentric magnetic fields are provided to rotate the rotatable member.
Claim 8
Dependent Claim
22 words
The rotary machine as defined by claim 6 wherein said magnetic members are comprised of solid elements having a uniform thickness throughout.
Claim 9
Dependent Claim
26 words
The rotary machine as defined by claim 7 wherein the thickness of one magnetic member is greater than the thickness of the other permanent magnetic member.
Claim 10
Dependent Claim
28 words
The rotary machine as defined by claim 8 wherein the thickness of the rotatably movable permanent magnet is greater in thickness than that of the fixed magnetic member.
Claim 11
Dependent Claim
27 words
The rotary machine as defined by claim 3 wherein said magnetic members are comprised of solid elements which vary in graduating thickness around their respective outer perimeter.
Claim 12
Dependent Claim
21 words
The rotary machine as defined by claim 10 wherein the thickness of said members varies in an arithmetic or geometric progression.
Claim 13
Dependent Claim
94 words
The rotary machine as defined by claim 11 wherein the progression of thickness t of one magnetic member comprises an arithmetic progression defined by the expression: t=2nθ/θ.sub.D and wherein the thickness of the other magnetic member is defined by the expression: t=2n(360-θ/θ.sub.D) where θ D is a unit span of radius progression and comprises 360° divided by an integer, θ is any predetermined angle of radius between 0° and 360°, and n is the linear measurement of change in radius measured from the central axis of the perimeter over said unit span of progression.
Claim 14
Dependent Claim
106 words
The rotary machine as defined by claim 3 wherein the progression of thickness (t) of one magnetic member comprises a geometric progression defined by the expression: t=2[2.sup.m nθ/θ.sub.D (m+1)] and wherein the thickness of the other magnetic member is defined by the expression: t=2[2.sup.m nθ.sub.D (m+1)/θ] where θ is any angle between 0° and 360°, θ D is a unit span of progression and comprises 360° divided by an integer, m is a selected number of angular divisions of 360° and progresses in value for each succeeding angular division, and n is a linear measurement of the change in radius over the unit span of progression.
Claim 15
Dependent Claim
53 words
The rotary machine as defined by claim 3 and additionally including at least one other fixed magnetic member, at least one other rotatably movable member, and a common shaft linking said rotatable members forming thereby a compound rotor and wherein the fixed and rotatably movable magnetic members alternate in position along said shaft.
Claim 16
Dependent Claim
33 words
The rotary machine as defined by claim 14 wherein the fixed permanent magnetic members are of substantially the same size and wherein said rotatably movable magnetic members are of substantially the same size.
Claim 17
Dependent Claim
92 words
The rotary machine as defined by claim 1 wherein said means for rotating the rotatably movable member past a position of magnetic field equilibrium comprises another rotatably movable permanent magnet member coupled to said first recited movable member, selectively energized electromagnet means located adjacent said another rotatably movable permanent magnet member, and additionally including means for energizing said electromagnet means at said position of field equilibrium and being poled with respect to said another movable member when energized to rotate said member a predetermined span of rotational arc and thereafter becoming deenergized.
Claim 18
Dependent Claim
121 words
The rotary machine as defined by claim 16 wherein said electromagnet means includes an electrical coil and said means for energizing said electromagnet means comprises an electrical switch circuit for coupling electrical power to said coil and electrical circuit interruptor means including at least one light source, means responsive to light emitted from said light source, and an intermediate rotatable element coupled to said rotatably movable magnetic member and having an aperture for coupling light from said light source to said light responsive means at a position of rotation corresponding to said position of field equilibrium, and wherein said means responsive to said light is adapted to cause electrical circuit means to become operative to couple power to said electromagnet coil.
Claim 19
Dependent Claim
90 words
The rotary device as defined by claim 17 wherein said light means comprises a pair of light sources, said light responsive means comprises a pair of light responsive elements, and said intermediate element comprises a rotatable disc having a pair of apertures therein and being adapted at a predetermined rotational position to simultaneously couple light from both light sources to both light responsive elements wherein said light responsive elements are connected in series to energize said electrical circuit means only when both elements receive light from said pair of sources.
Claim 20
Dependent Claim
72 words
The rotary machine as defined by claim 17 wherein said electrical switch circuit is comprised of a bridge rectifier circuit coupled to an AC source and including a pair of silicon controlled rectifiers having respective gate electrodes which are coupled to said series connected light responsive elements, said silicon controlled rectifiers being rendered conductive when both light responsive elements receive light to apply DC power from said bridge rectifier to said coil.
Claim 21
Dependent Claim
52 words
The rotary machine as defined by claim 17 wherein said electrical switch means includes at least one transistor coupled to a DC source and coupled to said series connected light responsive elements to be rendered conductive thereby to couple said DC source to said coil when both light responsive elements receive light.
Claim 22
Dependent Claim
21 words
The rotary machine as defined by claim 1 wherein said permanent magnetic members are comprised of coplanar annular permanent magnet members.
Claim 23
Dependent Claim
31 words
The rotary machine as defined by claim 21 wherein said annular members comprise an inner and outer band of permanent magnet material respectively located on a coplanar rotor and stator member.
Claim 24
Dependent Claim
31 words
The rotary machine as defined by claim 22 wherein said inner band progresses radially outwardly in a first rotational direction and the outer band progresses outwardly in the opposite rotational direction.
Claim 25
Dependent Claim
30 words
The rotary machine as defined by claim 22 wherein the inner band progresses radially outwardly in a geometric progression and the outer band progresses radially outwardly in an arithmetic progression.
Claim 26
Dependent Claim
43 words
The rotary machine as defined by claim 24 wherein said inner and outer bands are magnetized to provide mutually attractive magnetic forces between said bands which rotate the rotor containing said inner band of permanent magnetic material until an equilibrium position is reached.
Claim 27
Dependent Claim
22 words
The rotary machine as defined by claim 22 wherein said inner and outer bands progress radially outward in the same rotational direction.
Claim 28
Dependent Claim
68 words
The rotary machine as defined by claim 22 and wherein said rotor member additionally includes a plurality of orthogonally oriented generally elongated permanent magnet members mounted on said rotor member and a plurality of orthogonally located electrical induction coils mounted adjacent said plurality of elongated magnetic members on said stator member, said induction coils being adapted to conduct induced electrical currents therein upon rotation of said rotor member.
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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) | 1987-06-26 | 1987-12-26 | 1988-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-26 | 1991-12-26 | 1992-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-26 | 1995-12-26 | 1996-06-26 | $7700.00 | Window Closed / Lapsed |