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US3851594A Expired / Lapsed US ⏱️ 0.0 years remaining

Electromagnetic suspension and guide system for suspended vehicles adapted to switch tracks

Assignee: Mannesmann Demag Krauss Maffei GmbH
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Filing: 1973-05-21
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Granted: 1974-12-03
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Expires: 1993-05-21
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Abstract

Abstract An electromagnetic guide or suspension system for a magnetically supported vehicle having at least two rows of electromagnets extending along the vehicle in the direction of travel thereof and cooperating with respective armature rails upon the supporting track. Each row of electromagnets consists of two subrows of electromagnets, the electromagnets of at least one subrow being in a magnetic circuit with a respective armature rail at all times. The rows of electromagnets are designed to receive armature rails extending into the magnetic paths of the electromagnets symmetrically from opposite sides so that the vehicle may travel between a pair of outer armature rails along one track, can be switched to a second track in which the armature rails are flanked by the rows of electromagnets, or the electromagnets can be disposed to the same side of the respective armature rails in an asymmetrical arrangement.

Inventors

  • 👤 P Schwarzler
  • 👤 C Walkner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 08:31
CPC Classifications
B; B61; B61B; B61B13/00; B61B13/08; B60; B60L; B60L13/00; B60L13/003; B60L13/04; B60L2200/00; B60L2200/26; Y; Y02; Y02T; Y02T30/00

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 148 words
In a suspended-vehicle system comprising a track and a vehicle adapted to travel along said track and provided with force-transmitting electromagnetic means between said vehicle and said track, the improvement wherein said electromagnetic means comprises at least two electromagnet arrangements extending along and fixed to said vehicle, each of said electromagnet arrangements including two subrows of electromagnets extending in the direction of vehicle travel along said track; and armature rails mounted on said track and cooperating with each of said electromagnet arrangements respectively, the armature rail associated with each electromagnet arrangement selectively entering the field of the electromagnets of each subrow on different sides of a respectively vertical plane through the electromagnet arrangement, each of the electromagnets of each of said electromagnet arrangements being paired with an electromagnet thereof in the other subrow, said electromagnet arrangements being formed with energizing coils common to the electromagnets of each pair.
Claim 2
Dependent Claim 148 words
In a suspended-vehicle system comprising a track and a vehicle adapted to travel along said track and provided with force-transmitting electromagnetic means between said vehicle and said track, the improvement wherein said electromagnetic means comprises at least two electromagnet arrangements extending along and fixed to said vehicle, each of said electromagnet arrangements including two subrows of electromagnets extending in the direction of vehicle travel along said track; and armature rails mounted on said track and cooperating with each of said electromagnet arrangements respectively, the armature rail associated with each electromagnet arrangement selectively entering the field of the electromagnets of each subrow on different sides of a respectively vertical plane through the electromagnet arrangement, each of the electromagnets of each of said electromagnet arrangements being paired with an electromagnet thereof in the other subrow, said electromagnet arrangements being formed with energizing coils common to the electromagnets of each pair.
Claim 3
Dependent Claim 26 words
The improvement defined in claim 1 wherein the electromagnet of each pair comprises codirectionally extending U-profile magnetic cores receiving the respective coil between the shanks thereof.
Claim 4
Dependent Claim 23 words
The improvement defined in claim 2 wherein said armature rails are of U-cross-section and have shanks reaching toward the shanks of said cores.
Claim 5
Dependent Claim 190 words
In a suspended-vehicle system comprising a track and a vehicle adapted to travel along said track and provided with force-transmitting electromagnetic means between said vehicle and said track, the improvement wherein said electromagnetic means comprises at least two electromagnet arrangements extending along and fixed to said vehicle, each of said electromagnet arrangements including two subrows of electromagnets extending in the direction of vehicle travel along said track; and armature rails mounted on said track and cooperating with each of said electromagnet arrangements respectively, the armature rail associated with each electromagnet arrangement selectively entering the field of the electromagnets of each subrow on different sides of a respectively vertical plane through the electromagnet arrangement, said electromagnets having cores and coils, said armature rails and said cores being of oppositely open U-section configuration with respective shanks of the rails reaching toward the shanks of the cores, said vehicle is provided with supports for said electromagnet arrangements beyond horizontal planes defining the outline of a vehicle body thereof, said supports including uprights, said cores being disposed on horizontal lateral sides of said uprights and being upwardly open, said coils extending around said uprights.
Claim 6
Dependent Claim 190 words
In a suspended-vehicle system comprising a track and a vehicle adapted to travel along said track and provided with force-transmitting electromagnetic means between said vehicle and said track, the improvement wherein said electromagnetic means comprises at least two electromagnet arrangements extending along and fixed to said vehicle, each of said electromagnet arrangements including two subrows of electromagnets extending in the direction of vehicle travel along said track; and armature rails mounted on said track and cooperating with each of said electromagnet arrangements respectively, the armature rail associated with each electromagnet arrangement selectively entering the field of the electromagnets of each subrow on different sides of a respectively vertical plane through the electromagnet arrangement, said electromagnets having cores and coils, said armature rails and said cores being of oppositely open U-section configuration with respective shanks of the rails reaching toward the shanks of the cores, said vehicle is provided with supports for said electromagnet arrangements beyond horizontal planes defining the outline of a vehicle body thereof, said supports including uprights, said cores being disposed on horizontal lateral sides of said uprights and being upwardly open, said coils extending around said uprights.
Claim 7
Dependent Claim 46 words
The improvement defined in claim 2 wherein alternate cores along each of said subrows are laterally offset from the othEr cores of each subrow whereby energization of said coil provides a combined vertical suspending and laterally guiding force between said electromagnet arrangements and the respective rails.
Claim 8
Dependent Claim 201 words
In a suspended-vehicle system comprising a track and a vehicle adapted to travel along said track and provided with force-transmitting electromagnetic means between said vehicle and said track, the improvement wherein said electromagnetic means comprises at least two electromagnet arrangements extending along and fixed to said vehicle, each of said electromagnet arrangements including two subrows of electromagnets extending in the direction of vehicle travel along said track; and armature rails mounted on said track and cooperating with each of said electromagnet arrangements respectively, the armature rail associated with each electromagnet arrangement selectively entering the field of the electromagnets of each subrow on different sides of a respectively vertical plane through the electromagnet arrangement, said system being provided with at least one branching region provided with another armature rail associated with one of said electromagnet arrangements and overlapping in the direction of travel of the vehicle with the first-mentioned armature rail of said one of said arrangements and reaching into magnetic cooperation with the other electromagnet subrow thereof from that cooperating with said first rail, the pole surfaces of the overlapping rails in said branching region progressively receding from the electromagnets of the respective subrows toward the ends of the overlapping rails.
Claim 9
Dependent Claim 201 words
In a suspended-vehicle system comprising a track and a vehicle adapted to travel along said track and provided with force-transmitting electromagnetic means between said vehicle and said track, the improvement wherein said electromagnetic means comprises at least two electromagnet arrangements extending along and fixed to said vehicle, each of said electromagnet arrangements including two subrows of electromagnets extending in the direction of vehicle travel along said track; and armature rails mounted on said track and cooperating with each of said electromagnet arrangements respectively, the armature rail associated with each electromagnet arrangement selectively entering the field of the electromagnets of each subrow on different sides of a respectively vertical plane through the electromagnet arrangement, said system being provided with at least one branching region provided with another armature rail associated with one of said electromagnet arrangements and overlapping in the direction of travel of the vehicle with the first-mentioned armature rail of said one of said arrangements and reaching into magnetic cooperation with the other electromagnet subrow thereof from that cooperating with said first rail, the pole surfaces of the overlapping rails in said branching region progressively receding from the electromagnets of the respective subrows toward the ends of the overlapping rails.
Claim 10
Dependent Claim 224 words
In a suspended-vehicle system comprising a track and a vehicle adapted to travel along said track and provided with force-transmitting electromagnetic means between said vehicle and said track, the improvement wherein said electromagnetic means comprises at least two electromagnet arrangements extending along and fixed to said vehicle, each of said electromagnet arrangements including two subrows of electromagnets extending in the direction of vehicle travel along said track; and armature rails mounted on said track and cooperating with each of said electromagnet arrangements respectively, the armature rail associated with each electromagnet arrangement selectively entering the field of the electromagnets of each subrow on different sides of a respectively vertical plane through the electromagnet arrangement, said system being provided with at least one branching region provided with another armature rail associated with one of said electromagnet arrangements and overlapping in the direction of travel of the vehicle with the first-mentioned armature rail of said one of said arrangements and reaching into magnetic cooperation with the other electromagnet subrow thereof from that cooperating with said first rail, each of the armature rails associated with said one of said electromagnetic arrangements being provided in said region with a respective coil excitable to counteract the flux of the electromagnets of the respective subrow to maintain the magnetic effectiveness of said one of said arrangements substantially constant through said region.
Claim 11
Dependent Claim 224 words
In a suspended-vehicle system comprising a track and a vehicle adapted to travel along said track and provided with force-transmitting electromagnetic means between said vehicle and said track, the improvement wherein said electromagnetic means comprises at least two electromagnet arrangements extending along and fixed to said vehicle, each of said electromagnet arrangements including two subrows of electromagnets extending in the direction of vehicle travel along said track; and armature rails mounted on said track and cooperating with each of said electromagnet arrangements respectively, the armature rail associated with each electromagnet arrangement selectively entering the field of the electromagnets of each subrow on different sides of a respectively vertical plane through the electromagnet arrangement, said system being provided with at least one branching region provided with another armature rail associated with one of said electromagnet arrangements and overlapping in the direction of travel of the vehicle with the first-mentioned armature rail of said one of said arrangements and reaching into magnetic cooperation with the other electromagnet subrow thereof from that cooperating with said first rail, each of the armature rails associated with said one of said electromagnetic arrangements being provided in said region with a respective coil excitable to counteract the flux of the electromagnets of the respective subrow to maintain the magnetic effectiveness of said one of said arrangements substantially constant through said region.
Claim 12
Dependent Claim 118 words
In a suspended-vehicle system comprising a track and a vehicle adapted to travel along said track and provided with forcetransmitting electromagnetic means between said vehicle and said track, the improvement wherein said electromagnetic means comprises armature rails extending along and mounted on said track and further comprises at least two electromagnet arrangements extending along and fixed to said vehicle, each of said electromagnet arrangements including two subrows of electromagnets extending in the direction of vehicle travel along said track, each of said armature rails normally cooperating magnetically with only one of said subrows of electromagnets, the other one of the subrows of each electromagnet arrangement cooperating magnetically with an overlapping one of said armature rails at a branching.
Claim 13
Dependent Claim 118 words
In a suspended-vehicle system comprising a track and a vehicle adapted to travel along said track and provided with forcetransmitting electromagnetic means between said vehicle and said track, the improvement wherein said electromagnetic means comprises armature rails extending along and mounted on said track and further comprises at least two electromagnet arrangements extending along and fixed to said vehicle, each of said electromagnet arrangements including two subrows of electromagnets extending in the direction of vehicle travel along said track, each of said armature rails normally cooperating magnetically with only one of said subrows of electromagnets, the other one of the subrows of each electromagnet arrangement cooperating magnetically with an overlapping one of said armature rails at a branching.

References Cited (Backward Citations)

DE707032C Cited
US3750803A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-12-02 1978-06-03 1978-12-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-12-02 1982-06-03 1982-12-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-12-02 1986-06-03 1986-12-03 $7700.00 Window Closed / Lapsed

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