Patent US3797403A successfully refreshed from Google Patents.
US3797403A
Expired / Lapsed
US
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Power electromagnetic suspension and guide system for vehicles
Assignee: Mannesmann Demag Krauss Maffei GmbH
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Filing: 1972-06-30
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Granted: 1974-03-19
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Expires: 1992-06-30
Abstract
Abstract An electromagnetic suspension and drive system, e.g., for a floating personnel carrier or other vehicle, wherein a T-section armature is carried by the vehicle and is provided along its shank with a magnetic suspending coil and along the crossbar of the T with a pair of magnetic guide coils and connected and arranged through the latter coils provided oppositely effective horizontal forces and operate in aiding relationship with the suspending coil. The magnetic flux path is closed through a Ushaped channel whose flanges flank the crossbar of the T and receive the armature between them while defining lateral and vertical air gaps with the armature.
Inventors
- 👤 H Schauberger
- 👤 P Schwarzler
- 👤 G Bohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:05
CPC Classifications
B; B61; B61B; B61B13/00; B61B13/08
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
197 words
An electromagnetic suspension and guide system comprising: a longitudinally extending fixed support; a floating body displaceable longitudinally along said support; an armature rail extending along said fixed support and connected thereto; and an electromagnet on said body juxtaposed with said armature rail and including a core and electromagnet coil means on said core for producing a vertical-suspension and lateral-guide flux and, independently thereof, for selectively augmenting and diminishing said lateral-guide flux, said armature rail being a channel having a base and a pair of vertically extending flanges connected to said base, said core having a generally Tshaped profile with a shank extending vertically toward said base and a pair of arms extending laterally toward said flanges to define a vertical air gap between said shank and said base and a pair of horizontal air gaps between said arms and said flanges, said coil means including a first coil on said shank and a second coil on at least one of said arms, said first coil being energizable to generate a vertical-suspension magnetic force at said vertical gap and oppositely effectively horizontally guide forces at said horizontal gaps, said second coil being energizable to modify said horizontal forces.
Claim 2
Dependent Claim
197 words
An electromagnetic suspension and guide system comprising: a longitudinally extending fixed support; a floating body displaceable longitudinally along said support; an armature rail extending along said fixed support and connected thereto; and an electromagnet on said body juxtaposed with said armature rail and including a core and electromagnet coil means on said core for producing a vertical-suspension and lateral-guide flux and, independently thereof, for selectively augmenting and diminishing said lateral-guide flux, said armature rail being a channel having a base and a pair of vertically extending flanges connected to said base, said core having a generally Tshaped profile with a shank extending vertically toward said base and a pair of arms extending laterally toward said flanges to define a vertical air gap between said shank and said base and a pair of horizontal air gaps between said arms and said flanges, said coil means including a first coil on said shank and a second coil on at least one of said arms, said first coil being energizable to generate a vertical-suspension magnetic force at said vertical gap and oppositely effectively horizontally guide forces at said horizontal gaps, said second coil being energizable to modify said horizontal forces.
Claim 3
Dependent Claim
36 words
The system defined in claim 1 wherein each of said arms is provided with respective second coils, said second coils having identical numbers of turns and the same winding sense and being electrically connected in series.
Claim 4
Dependent Claim
22 words
The system defined in claim 2 wherein said shanks and said arms at their free ends are provided with respective pole shoes.
Claim 5
Dependent Claim
24 words
The system defined in claim 2 wherein the free ends of said arms lie at least in part below the bottoms of said flanges.
Claim 6
Dependent Claim
54 words
The system defined in claim 4 wherein said support is a horizontally extending track provided along its underside with a pair of symmetrically disposed armature rails as defined and said body is a vehicle displaceable along said track and provided with a pair of such electromagnets each cooperating with one of said armature rails.
Claim 7
Dependent Claim
22 words
The system defined in claim 5 further comprising means responsive to the widths of said horizontal gaps for energizing said second coils.
Claim 8
Dependent Claim
164 words
An electromagnetic suspension and guide system comprising a longitudinally extending fixed support; a floating body displaceable longitudinally along said support; an armature rail extending along said fixed support and connected thereto; an electromagnetic core on said body juxtaposed with said armature rail and defining at least one air gap with said core and generating vertical electromagnetic force between said rail and said core, and at least two air gaps between said core and said armature rail for developing oppositely acting electromagnetic forces in substantially horizontal directions between said core and said rail; and electromagnetic coil means on said core including at least one first portion for Generating magnetic flux in said core across said one air gap and at least two portions cooperating with said two air gaps respectively and providing in dependence upon relative horizontal displacement forces of said core and said rail, a flux addition in one of the two portions and a flux subtraction in the other of the two portions.
Claim 9
Dependent Claim
164 words
An electromagnetic suspension and guide system comprising a longitudinally extending fixed support; a floating body displaceable longitudinally along said support; an armature rail extending along said fixed support and connected thereto; an electromagnetic core on said body juxtaposed with said armature rail and defining at least one air gap with said core and generating vertical electromagnetic force between said rail and said core, and at least two air gaps between said core and said armature rail for developing oppositely acting electromagnetic forces in substantially horizontal directions between said core and said rail; and electromagnetic coil means on said core including at least one first portion for Generating magnetic flux in said core across said one air gap and at least two portions cooperating with said two air gaps respectively and providing in dependence upon relative horizontal displacement forces of said core and said rail, a flux addition in one of the two portions and a flux subtraction in the other of the two portions.
Claim 10
Dependent Claim
76 words
The system defined in claim 7 wherein said armature rail is generally of a U section having a horizontal web and a pair of vertically extending shanks depending from said web, said core being of inverted-T configuration with the shank of said T being juxtaposed with said web to form said one gap and each laterally extending arm of the T being juxtaposed with a respective shank to form a respective one of said two gaps.
Claim 11
Dependent Claim
30 words
The system defined in claim 8 wherein said one portion is a coil portion wound on said shank and said two portions are respective coil portions wound on said arms.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |