Patent US3842747A successfully refreshed from Google Patents.
US3842747A
Expired / Lapsed
US
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Electromagnetic suspension and guide system for vehicles adapted to switch tracks
Assignee: Mannesmann Demag Krauss Maffei GmbH
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Filing: 1973-01-16
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Granted: 1974-10-22
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Expires: 1993-01-16
Abstract
Abstract An electromagnetic guide or suspension system for a magnetically-supported vehicle which comprises symmetrically disposed electromagnetic arrangements upon the vehicle adapted to cooperate with armature rails extending into the magnetic paths of such arrangements symmetrically from opposite sides so that the vehicle may travel between a pair of outer armature rails along one track and can be switched to a second track in which the electromagnetic arrangement flanks the armature rails or vice versa.
Inventors
- 👤 P Schwarzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:05
CPC Classifications
B; B60; B60L; B60L13/00; B60L13/003; B60L2200/00; B60L2200/26
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
234 words
In a suspended-vehicle system comprising a track and a vehicle adapted to travel along said track, the improvement which comprises: at least two rows of electromagnets extending in the direction of vehicle travel and mounted on said vehicle in spaced-apart relationship; and armature rails cooperating with the electromagnets of said rows and mounted on said track for magnetically supporting said vehicle, said armature rails and said electromagnets being constructed and arranged so as to close magnetic paths between each electromagnet and the respective rail on either side of each of said rows, each of said rows of electromagnets including a plurality of electromagnets each having a core and a coil wound on said core, said cores being symmetrical about respective vertical planes and having flanges extending therefrom in opposite directions for closing magnetic paths with armature rails disposed in mirror-symmetrical relationship with reference to the respective plane, each of said cores being of double-T profile and including a vertical web and upper and lower flanges extending laterally from said web, said coil being would around said web, said armature rails being of recumbent generally U-profile, each of said rails having a base connected to a generally vertical flank of said track and a pair of flanges reaching toward the respective row of electromagnets and cooperating with the flanges thereof to form a pair of air gaps with each electromagnet, disposed one above the other.
Claim 2
Dependent Claim
234 words
In a suspended-vehicle system comprising a track and a vehicle adapted to travel along said track, the improvement which comprises: at least two rows of electromagnets extending in the direction of vehicle travel and mounted on said vehicle in spaced-apart relationship; and armature rails cooperating with the electromagnets of said rows and mounted on said track for magnetically supporting said vehicle, said armature rails and said electromagnets being constructed and arranged so as to close magnetic paths between each electromagnet and the respective rail on either side of each of said rows, each of said rows of electromagnets including a plurality of electromagnets each having a core and a coil wound on said core, said cores being symmetrical about respective vertical planes and having flanges extending therefrom in opposite directions for closing magnetic paths with armature rails disposed in mirror-symmetrical relationship with reference to the respective plane, each of said cores being of double-T profile and including a vertical web and upper and lower flanges extending laterally from said web, said coil being would around said web, said armature rails being of recumbent generally U-profile, each of said rails having a base connected to a generally vertical flank of said track and a pair of flanges reaching toward the respective row of electromagnets and cooperating with the flanges thereof to form a pair of air gaps with each electromagnet, disposed one above the other.
Claim 3
Dependent Claim
44 words
The improvement defined in claim 1 wherein at least one of the flanges of each electromagnet and a confronting flange of each armature rail are formed at their free ends with pole pieces turned toward one another and defining an air gap between them.
Claim 4
Dependent Claim
38 words
The improvement defined in claim 2 wherein the other flanges of each armature rail and the respective electromagnet cores are flat and parallel and are in overlapping relationship to define air gaps of low magnetic resistance between them.
Claim 5
Dependent Claim
19 words
The improvement defined in claim 2 wherein said pole pieces are aligned and have pole faces of equal width.
Claim 6
Dependent Claim
56 words
The improvement defined in claim 2 wherein the pole pieces of some of the electromagnets of each row are laterally offset to one side of the pole piece of the respective armature rail and the pole pieces of the other electromagnets of each row are offset to the other side of the armature rail pole piece.
Claim 7
Dependent Claim
38 words
The improvement defined in claim 5 wherein the flanges of the cores of the electromagnets of each row are of equal width and alternate electromagnets are offset to opposite sides of a vertical median plane of the rows.
Claim 8
Dependent Claim
48 words
The improvement defined in claim 5 wherein the width of the flanges of the cores of some of the electromagnets is greater than the width of the flanges of other electromagnets and the webs of the electromagnetic cores of each row lie in respective vertical median planes thereof.
Claim 9
Dependent Claim
51 words
The improvement defined in claim 5 wherein some of said electromagnets have long flanges to one side of a vertical median plane of said row and short flanges to the opposite side thereof while the other electromagnets have long flanges to said other side and short flanges to said one side.
Claim 10
Dependent Claim
24 words
The improvement defined in claim 2 wherein said track has a channel-shaped construction with said rails being mounted on inner faces of the channel.
Claim 11
Dependent Claim
23 words
The improvement defined in claim 2 wherein said track has a central beam, said rolls being mounted upon opposite sides of said beam.
Claim 12
Dependent Claim
92 words
The improvement defined in claim 2 wherein said track includes a pair of divergent paths forming a junction, said rails including first and second pairs of rails running along said paths and cooperating with respective sides of the respective rows of electromagnets of said vehicle, at least one rails of each path being interrupted at said junction, and fixedlY positioned auxiliary rails at said junction in regions of rail interruption for cooperating with the electromagnets of said rows along the sides thereof opposite those at which the respective interrupted rails were disposed.
Claim 13
Dependent Claim
37 words
The improvement defined in claim 11 wherein at least some of said rails in the region of said junction are provided with coils energizable to annul at least part of the flux induced therein by said electromagnets.
Claim 14
Dependent Claim
144 words
In a suspended-vehicle system comprising a track and a vehicle adapted to travel along said track, the improvement which comprises: at least two rows of electromagnets extending in the direction of vehicle travel and mounted on said vehicle in spaced-apart relationship; and armature rails cooperating with the electromagnets of said rows and mounted on said track for magnetically supporting said vehicle, said armature rails and said electromagnets being constructed and arranged so as to close magnetic paths between each electromagnet and the respective rail on either side of each of said rows, said armature rails each having a web and two shanks extending from said web toward said vehicle, each of said rows of electromagnets having arms straddling one of the shanks of the respective armature rail, said one shank of each rail being received substantially centrally between the arms of the respective electromagnet.
Claim 15
Dependent Claim
144 words
In a suspended-vehicle system comprising a track and a vehicle adapted to travel along said track, the improvement which comprises: at least two rows of electromagnets extending in the direction of vehicle travel and mounted on said vehicle in spaced-apart relationship; and armature rails cooperating with the electromagnets of said rows and mounted on said track for magnetically supporting said vehicle, said armature rails and said electromagnets being constructed and arranged so as to close magnetic paths between each electromagnet and the respective rail on either side of each of said rows, said armature rails each having a web and two shanks extending from said web toward said vehicle, each of said rows of electromagnets having arms straddling one of the shanks of the respective armature rail, said one shank of each rail being received substantially centrally between the arms of the respective electromagnet.
Claim 16
Dependent Claim
207 words
A suspended-vehicle system comprising a track; a vehicle adapted to travel along said track; at least two rows of electromagnets extending in the direction of vehicle travel and mounted on said vehicle in spaced-apart relationship; and armature rails cooperating with the electromagnets of said rows and mounted on said track for magnetically supporting said vehicle, said armature rails and said electromagnets being constructed and arranged so as to close magnetic paths between each electromagnet and the respective rail on either side of each of said rows, each of said rows of electromagnets including a plurality of electromagnets each having a core of substantially double-T profile and a vertical web and a coil wound around said vertical web of said core, said cores having upper and lower flanges extending laterally from said web for closing magnetic paths with armature rails disposed in mirror-symmetrical relationship with reference to a respective symmetry plane, said armature rails being of recumbent generally U-profile, each of said rails having a base connected to a generally vertical flank of said track and a pair of flanges reaching toward the respective row of electromagnets and cooperating with the flanges thereof to form a pair of air gaps with each electromagnet, disposed one above the other.
Claim 17
Dependent Claim
207 words
A suspended-vehicle system comprising a track; a vehicle adapted to travel along said track; at least two rows of electromagnets extending in the direction of vehicle travel and mounted on said vehicle in spaced-apart relationship; and armature rails cooperating with the electromagnets of said rows and mounted on said track for magnetically supporting said vehicle, said armature rails and said electromagnets being constructed and arranged so as to close magnetic paths between each electromagnet and the respective rail on either side of each of said rows, each of said rows of electromagnets including a plurality of electromagnets each having a core of substantially double-T profile and a vertical web and a coil wound around said vertical web of said core, said cores having upper and lower flanges extending laterally from said web for closing magnetic paths with armature rails disposed in mirror-symmetrical relationship with reference to a respective symmetry plane, said armature rails being of recumbent generally U-profile, each of said rails having a base connected to a generally vertical flank of said track and a pair of flanges reaching toward the respective row of electromagnets and cooperating with the flanges thereof to form a pair of air gaps with each electromagnet, disposed one above the other.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |