Patent US3707924A successfully refreshed from Google Patents.
US3707924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic motion imparting means and transportor system embodying the same
Assignee: Individual
•
Filing: 1970-04-28
•
Granted: 1973-01-02
•
Expires: 1990-04-28
Abstract
Abstract An electromagnetic device producing a mechanical action, as in a transporter system comprising a suspended car, or in an electric motor, includes a magnetizing assembly and a magnetized assembly adapted to move one with respect to the other. The magnetizing assembly comprises at least one magnetic circuit defining an air gap and provided with at least one inductor winding, the magnetized assembly, subjected to the action of the magnetizing assembly comprising at least one magnetic portion associated with at least one non-magnetic portion and being in part housed in the air gap of said magnetizing assembly. This latter comprises at least two electromagnetic units each comprising an air gap and disposed in line whereas said magnetized assembly comprises a number of separate magnetic sections at least equal to two, the pitch of which is different from that of the electromagnetic units of said magnetizing assembly, said magnetic sections being coupled together mechanically, separated by non-magnetic sections and constituting a series in line. The windings of said electromagnetic units are connected to a switch adapted to ensure their energization following a predetermined sequence, guiding means being provided so as to permit the displacement of the magnetic sections of said magnetized assembly in the air gaps of said electromagnetic units in a transverse direction relative to the lines of force in said air gap.
Inventors
- 👤 M Barthalon
- 👤 A Moiroux
- 👤 P Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:52
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/14; B; B60; B60V; B60V3/00; B60V3/02; B60V3/04; H02K37/00; H02K37/02; H02K37/08; H02K41/00; H02K41/02; H02K41/03; B60L; B60L2200/00; B60L2200/26; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
350 words
A transporter system comprising at least one beam serving as a track, at least one car suspended from and movable along said track and provided with drive means for imparting motion thereto, said drive means comprising a magnetizing assembly and and a magnetized assembly adapted to move one with respect to the other and mounted one on said beam and the other on said car, the magnetizing assembly comprising a plurality of electromagnetic units disposed in line and each said unit comprising one magnetic circuit having two oppositely facing pole faces defining an air gap therebetween and having at least one inductor winding, the magnetized assembly projecting into said air gap in the magnetic field of the magnetizing assembly and comprising a plurality of magnetic sections disposed in line in alternate relation with non-magnetic sections, each said magnetic section comprising at least a pair of oppositely facing surfaces, at least a pair of said section surfaces facing respectively two of the said pole faces of a said magnetic circuit so that the magnetic flux generated by said inductor winding and acting upon said magnetic section enters one of said section surfaces and leaves the opposite surface of said magnetic section, the pitch of said magnetic sections being different from that of the electromagnetic units of said magnetizing assembly, switching means for supplying current pulses to the windings of said electromagnetIc units according to a predetermined sequence, each pulse of the sequence being supplied at about the time when one of the magnetic sections reaches the entrance of the corresponding air gap, means for guiding the relative displacement of the said magnetized assembly through the air gaps of said electromagnetic units in a direction crossing the lines of force within said air gaps, the direction of said lines of force being substantially the same in said air gaps and in said magnetic sections of said magnetized assembly, sensing means for detecting a parameter of that assembly which is moving with respect to the other assembly, and means controlled by said sensing means for controlling the current pulses supplied to said windings.
Claim 2
Dependent Claim
350 words
A transporter system comprising at least one beam serving as a track, at least one car suspended from and movable along said track and provided with drive means for imparting motion thereto, said drive means comprising a magnetizing assembly and and a magnetized assembly adapted to move one with respect to the other and mounted one on said beam and the other on said car, the magnetizing assembly comprising a plurality of electromagnetic units disposed in line and each said unit comprising one magnetic circuit having two oppositely facing pole faces defining an air gap therebetween and having at least one inductor winding, the magnetized assembly projecting into said air gap in the magnetic field of the magnetizing assembly and comprising a plurality of magnetic sections disposed in line in alternate relation with non-magnetic sections, each said magnetic section comprising at least a pair of oppositely facing surfaces, at least a pair of said section surfaces facing respectively two of the said pole faces of a said magnetic circuit so that the magnetic flux generated by said inductor winding and acting upon said magnetic section enters one of said section surfaces and leaves the opposite surface of said magnetic section, the pitch of said magnetic sections being different from that of the electromagnetic units of said magnetizing assembly, switching means for supplying current pulses to the windings of said electromagnetIc units according to a predetermined sequence, each pulse of the sequence being supplied at about the time when one of the magnetic sections reaches the entrance of the corresponding air gap, means for guiding the relative displacement of the said magnetized assembly through the air gaps of said electromagnetic units in a direction crossing the lines of force within said air gaps, the direction of said lines of force being substantially the same in said air gaps and in said magnetic sections of said magnetized assembly, sensing means for detecting a parameter of that assembly which is moving with respect to the other assembly, and means controlled by said sensing means for controlling the current pulses supplied to said windings.
Claim 3
Dependent Claim
17 words
A system as claimed in claim 1, said sensing means detecting the position of said moving assembly.
Claim 4
Dependent Claim
17 words
A system as claimed in claim 1, said sensing means detecting the speed of said moving assembly.
Claim 5
Dependent Claim
19 words
A system as claimed in claim 1, said sensing means detecting the direction of movement of said moving assembly.
Claim 6
Dependent Claim
17 words
A system as claimed in claim 1, said controlling means controlling the beginning of the current pulses.
Claim 7
Dependent Claim
17 words
A system as claimed in claim 1, said controlling means controlling the end of said current pulses.
Claim 8
Dependent Claim
42 words
A system as claimed in claim 6, said means controlling the end of the current pulses effecting the interruption of a current pulse fed to an electromagnetic unit before the corresponding magnetic section reaches a central position in the corresponding air gap.
Claim 9
Dependent Claim
23 words
A system as claimed in claim 1, said controlling means controlling the order in which said current pulses are supplied to said windings.
Claim 10
Dependent Claim
20 words
A system as claimed in claim 1, the line in which said electromagnetic units are disposed being a straight line.
Claim 11
Dependent Claim
20 words
A system as claimed in claim 1, the line in which said electromagnetic units are disposed being a curved line.
Claim 12
Dependent Claim
59 words
A system as claimed in claim 1, the amount by which the pitch of said magnetic sections is different from that of the electromagnetic units of said magnetizing assembly being such that the axial length of N pitches of one said assembly is equal to the length of (N+1) pitches of the other assembly, N being a whole number.
Claim 13
Dependent Claim
79 words
A system as claimed in claim 1, said guiding means being so arranged that the mechanical play of said magnetized assembly in a direction parallel to the lines of force within the air gaps of said electromagnetic units is substantially less than the value of the residual air gap between the pole faces of said units and the oppositely facing surfaces of the magnetic sections of said magnetized assembly when the latter are in the position of minimum reluctance.
Claim 14
Dependent Claim
350 words
A transporter system comprising at least one member serving as a track, at least one member movable along said track and provided with driving means for imparting motion thereto, said driving means comprising a magnetizing assembly and a magnetized assembly, one of said assemblies being carried by one of said members and the other of said assemblies being carried by the other of said members, the magnetizing assembly comprising a plurality of electromagnetic units disposed in line and each said unit comprising one magnetic circuit having two oppositely facing pole faces defining an air gap therebetween and having at least one inductor winding, the magnetized assembly projecting into said air gap in the magnetic field of the magnetizing assembly and comprising a plurality of magnetic sections disposed in line in alternate relation with non-magnetic sections, each said magnetic section comprising at least a pair of oppositely facing surfaces, at least a pair of said section surfaces facing respectively two of the said pole faces of a said magnetic circuit so that the magnetic flux generated by said inductor winding and acting upon said magnetic section enters one of said section surfaces and leaves the opposite surface of said magnetic section, the pitch of said magnetic seCtions being different from that of the electromagnetic units of said magnetizing assembly, switching means for supplying current pulses to the windings of said electromagnetic units according to a predetermined sequence, each pulse of the sequence being supplied at about the time when one of the magnetic sections reaches the entrance of the corresponding air gap, means for guiding the relative displacement of the said magnetized assembly through the air gaps of said electromagnetic units in a direction crossing the lines of force within said air gaps, the direction of said lines of force being substantially the same in said air gaps and in said magnetic sections of said magnetized assembly, sensing means for detecting a parameter of that assembly which is moving with respect to the other assembly, and means controlled by said sensing means for controlling the current pulses supplied to said windings.
Claim 15
Dependent Claim
350 words
A transporter system comprising at least one member serving as a track, at least one member movable along said track and provided with driving means for imparting motion thereto, said driving means comprising a magnetizing assembly and a magnetized assembly, one of said assemblies being carried by one of said members and the other of said assemblies being carried by the other of said members, the magnetizing assembly comprising a plurality of electromagnetic units disposed in line and each said unit comprising one magnetic circuit having two oppositely facing pole faces defining an air gap therebetween and having at least one inductor winding, the magnetized assembly projecting into said air gap in the magnetic field of the magnetizing assembly and comprising a plurality of magnetic sections disposed in line in alternate relation with non-magnetic sections, each said magnetic section comprising at least a pair of oppositely facing surfaces, at least a pair of said section surfaces facing respectively two of the said pole faces of a said magnetic circuit so that the magnetic flux generated by said inductor winding and acting upon said magnetic section enters one of said section surfaces and leaves the opposite surface of said magnetic section, the pitch of said magnetic seCtions being different from that of the electromagnetic units of said magnetizing assembly, switching means for supplying current pulses to the windings of said electromagnetic units according to a predetermined sequence, each pulse of the sequence being supplied at about the time when one of the magnetic sections reaches the entrance of the corresponding air gap, means for guiding the relative displacement of the said magnetized assembly through the air gaps of said electromagnetic units in a direction crossing the lines of force within said air gaps, the direction of said lines of force being substantially the same in said air gaps and in said magnetic sections of said magnetized assembly, sensing means for detecting a parameter of that assembly which is moving with respect to the other assembly, and means controlled by said sensing means for controlling the current pulses supplied to said windings.
Claim 16
Dependent Claim
17 words
A system as claimed in claim 13, said sensing means detecting the position of said moving assembly.
Claim 17
Dependent Claim
17 words
A system as claimed in claim 13, said sensing means detecting the speed of said moving assembly.
Claim 18
Dependent Claim
19 words
A system as claimed in claim 13, said sensing means detecting the direction of movement of said moving assembly.
Claim 19
Dependent Claim
17 words
A system as claimed in claim 13, said controlling means controlling the beginning of the current pulses.
Claim 20
Dependent Claim
17 words
A system as claimed in claim 13, said controlling means controlling the end of said current pulses.
Claim 21
Dependent Claim
42 words
A system as claimed in claim 18, said means controlling the end of the current pulses effecting the interruption of a current pulse fed to an electromagnetic unit before the corresponding magnetic section reaches a central position in the corresponding air gap.
Claim 22
Dependent Claim
23 words
A system as claimed in claim 13, said controlling means controlling the order in which said current pulses are supplied to said windings.
Claim 23
Dependent Claim
20 words
A system as claimed in claim 13, the line in which said electromagnetic units are disposed being a straight line.
Claim 24
Dependent Claim
20 words
A system as claimed in claim 13, the line in which said electromagnetic units are disposed being a curved line.
Claim 25
Dependent Claim
59 words
A system as claimed in claim 13, the amount by which the pitch of said magnetic sections is different from that of the electromagnetic units of said magnetizing assembly being such that the axial length of N pitches of one said assembly is equal to the length of (N+1) pitches of the other assembly, N being a whole number.
Claim 26
Dependent Claim
79 words
A system as claimed in claim 13, said guiding means being so arranged that the mechanical play of said magnetized assembly in a direction parallel to the lines of force within the air gaps of said electromagnetic units is substantially less than the value of the residual air gap between the pole faces of said units and the oppositely facing surfaces of the magnetic sections of said magnetized assembly when the latter are in the position of minimum reluctance.
Claim 27
Independent Claim
361 words
A system comprising guide means, means movable on said guide means, drive means for imparting motion to said movable means on said guide means, said motion-imparting means comprising an electromagnetic device producing a mechanical action and comprising a magnetizing assembly and a magnetized assembly adapted to move one with respect to the other, one of said assemblies being carried by said guide means and the other of said assemblies being carried by said movable means, the magnetizing assembly comprising a plurality of electromagnetic units disposed in line and each said unit comprising one magnetic circuit having two oppositely facing pole faces defining an air gap therebetween and having at least one inductor winding, the magnetized assembly projecting into said air gap in the magnetic field of the magnetizing assembly and comprising a plurality of magnetic sections disposed in line in alternate relation with non-magnetic sections, each said magnetic section comprising at least a pair of oppositely facing surfaces, at least a pair of said section surfaces facing respectively tWo of the said pole faces of a said magnetic circuit so that the magnetic flux generated by said inductor winding and acting upon said magnetic section enters one of said section surfaces and leaves the opposite surface of said magnetic section, the pitch of said magnetic sections being different from that of the electromagnetic units of said magnetizing assembly, switching means for supplying current pulses to the windings of said electromagnetic units according to a predetermined sequence, each pulse of the sequence being supplied at about the time when one of the magnetic sections reaches the entrance of the corresponding air gap, said guide means guiding the relative displacement of the said magnetized assembly through the air gaps of said electromagnetic units in a direction crossing the lines of force within said air gaps, the direction of said lines of force being substantially the same in said air gaps and in said magnetic sections of said magnetized assembly, sensing means for detecting a parameter of that assembly which is moving with respect to the other assembly, and means controlled by said sensing means for controlling the current pulses supplied to said windings.
Claim 28
Independent Claim
361 words
A system comprising guide means, means movable on said guide means, drive means for imparting motion to said movable means on said guide means, said motion-imparting means comprising an electromagnetic device producing a mechanical action and comprising a magnetizing assembly and a magnetized assembly adapted to move one with respect to the other, one of said assemblies being carried by said guide means and the other of said assemblies being carried by said movable means, the magnetizing assembly comprising a plurality of electromagnetic units disposed in line and each said unit comprising one magnetic circuit having two oppositely facing pole faces defining an air gap therebetween and having at least one inductor winding, the magnetized assembly projecting into said air gap in the magnetic field of the magnetizing assembly and comprising a plurality of magnetic sections disposed in line in alternate relation with non-magnetic sections, each said magnetic section comprising at least a pair of oppositely facing surfaces, at least a pair of said section surfaces facing respectively tWo of the said pole faces of a said magnetic circuit so that the magnetic flux generated by said inductor winding and acting upon said magnetic section enters one of said section surfaces and leaves the opposite surface of said magnetic section, the pitch of said magnetic sections being different from that of the electromagnetic units of said magnetizing assembly, switching means for supplying current pulses to the windings of said electromagnetic units according to a predetermined sequence, each pulse of the sequence being supplied at about the time when one of the magnetic sections reaches the entrance of the corresponding air gap, said guide means guiding the relative displacement of the said magnetized assembly through the air gaps of said electromagnetic units in a direction crossing the lines of force within said air gaps, the direction of said lines of force being substantially the same in said air gaps and in said magnetic sections of said magnetized assembly, sensing means for detecting a parameter of that assembly which is moving with respect to the other assembly, and means controlled by said sensing means for controlling the current pulses supplied to said windings.
Claim 29
Dependent Claim
17 words
A system as claimed in claim 25, said sensing means detecting the position of said moving assembly.
Claim 30
Dependent Claim
17 words
A system as claimed in claim 25, said sensing means detecting the speed of said moving assembly.
Claim 31
Dependent Claim
19 words
A system as claimed in claim 25, said sensing means detecting the direction of movement of said moving assembly.
Claim 32
Dependent Claim
17 words
A system as claimed in claim 25, said controlling means controlling the beginning of the current pulses.
Claim 33
Dependent Claim
17 words
A system as claimed in claim 25, said controlling means controlling the end of said current pulses.
Claim 34
Dependent Claim
42 words
A system as claimed in claim 30, said means controlling the end of the current pulses effecting the interruption of a current pulse fed to an electromagnetic unit before the corresponding magnetic section reaches a central position in the corresponding air gap.
Claim 35
Dependent Claim
23 words
A system as claimed in claim 25, said controlling means controlling the order in which said current pulses are supplied to said windings.
Claim 36
Dependent Claim
65 words
A system as claimed in claim 23, in which the residual air gap between the pole faces of said electromagnetic units and the oppositely facing surfaces of the magnetic sections of said magnetized assembly is at least equal to twice the maximum mechanical play of said magnetized assembly in a direction parallel to the lines of force within the air gaps of said electromagnetic units.
Claim 37
Dependent Claim
52 words
A system as claimed in claim 25, in which the section of passage of the magnetic flux in the magnetic circuits of said electromagnetic units and in the magnetic sections of said magnetized assembly is determined in such a way that said magnetic sections are saturated before said magnetic circuits reach saturation.
Claim 38
Dependent Claim
47 words
A system as claimed in claim 25, in which the moving assembly is mounted below the fixed assembly and is suspended by magnetic attraction, retention means being further provided for preventing said moving assembly from falling in case of interruption of current supply to said magnetized assembly.
Claim 39
Dependent Claim
69 words
A system as claimed in claim 25, in which said electromagnetic units of the magnetizing assembly are connected in parallel to a single source of electrical energy through means for differential regulation of the voltage across the terminals of the windings of said electromagnetic units, said means comprising synchronized sliders and means for controlling the displacement of said sliders in dependence of the desired position of the moving assembly.
Claim 40
Dependent Claim
20 words
A system as claimed in claim 25, the line in which said electromagnetic units are disposed being a straight line.
Claim 41
Dependent Claim
20 words
A system as claimed in claim 25, the line in which said electromagnetic units are disposed being a curved line.
Claim 42
Dependent Claim
59 words
A system as claimed in claim 25, the amount by which the pitch of said magnetic sections is different from that of the electromagnetic units of said magnetiZing assembly being such that the axial length of N pitches of one said assembly is equal to the length of (N+1) pitches of the other assembly, N being a whole number.
Claim 43
Dependent Claim
79 words
A system as claimed in claim 25, said guiding means being so arranged that the mechanical play of said magnetized assembly in a direction parallel to the lines of force within the air gaps of said electromagnetic units is substantially less than the value of the residual air gap between the pole faces of said units and the oppositely facing surfaces of the magnetic sections of said magnetized assembly when the latter are in the position of minimum reluctance.
References Cited (Backward Citations)
US782312A
Cited
US2585317A
Cited
US3225228A
Cited
US3233559A
Cited
US3462883A
Cited
US3385228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |