US3780668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic suspension and/or guide system especially for magnetically suspended vehicles
Assignee: Mannesmann Demag Krauss Maffei GmbH
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Filing: 1972-08-11
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Granted: 1973-12-25
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Expires: 1992-08-11
Abstract
Abstract An electromagnetic suspension and guide system for magnetically suspended vehicles comprises a support or track along which the vehicle is displaceable and is provided with an armature rail of magnetically permeable material (e.g., a ferrous metal), while the vehicle is provided with at least one electromagnet cooperating with this armature rail. The electromagnet has a core of U-profile, the arms or shanks of which reach toward the armature rail which is likewise of U-profile whose shanks reach toward the electromagnet. The shanks of these two members overlap and the shanks of one member are inclined toward the shanks of the other. The shanks of the armature member may reach into the space between the shanks of the core member or vice versa.
Inventors
- 👤 P Schwarzler
- 👤 G Bohn
- 👤 H Schauberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:54
CPC Classifications
B; B61; B61B; B61B13/00; B61B13/04; B61B13/08
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
100 words
An electromagnetic suspension or guide system, comprising support, a U-profile armature rail member fixed to said support and having a web and a pair of shanks extending from said web, and electromagnet juxtaposed with said rail member and having a core member provided with a web and a pair of shanks extending therefrom toward said rail member, and a coil wound on said core member, the shanks of one of said members being received between the shanks of the other of said members and overlapping therewith, and at least one shank of each overlapping pair being inclined to the other.
Claim 2
Dependent Claim
100 words
An electromagnetic suspension or guide system, comprising support, a U-profile armature rail member fixed to said support and having a web and a pair of shanks extending from said web, and electromagnet juxtaposed with said rail member and having a core member provided with a web and a pair of shanks extending therefrom toward said rail member, and a coil wound on said core member, the shanks of one of said members being received between the shanks of the other of said members and overlapping therewith, and at least one shank of each overlapping pair being inclined to the other.
Claim 3
Dependent Claim
22 words
The system defined in claim 1 wherein the shanks of said core member extend into said rail member between the shanks thereof.
Claim 4
Dependent Claim
22 words
The system defined in claim 1 wherein the shanks of said rail member are received between the shanks of said core member.
Claim 5
Dependent Claim
19 words
The system defined in claim 1 wherein the inclined shank of each of said pairs is of curved configuration.
Claim 6
Dependent Claim
117 words
The system defined in claim 1 for a magnetically suspended vehicle wherein said support is a longitudinally extending track, said rail member extends longitudinally along said track, said system further comprises a vehicle carrying said electromagnet and displaceable along said track, said core member and said rail member having centroids defining a longitudinal axis of stability such that relative displacement of said vehicle and said support tending to separate said core member from said rail member in the direction of said axis results in a magnetic attractive force counteracting such separation, and a further electromagnetic system effective between said support and said vehicle for stabilizing same against relative displacement in a direction transverse to said longitudinal axis.
Claim 7
Dependent Claim
49 words
The system defined in claim 5 wherein said rail member and said core member form a longitudinally stable suspension arrangement for said vehicle, said further electromagnetic system including a control arrangement for limiting lateral displacement of said vehicle and being electromagnetically unstable in the absence of said control arrangement.
Claim 8
Dependent Claim
46 words
The system defined in claim 5 wherein said rail member and said core member provide a longitudinally stable lateral guide arrangement for said vehicle and said further electromagnetic system is an unstable electromagnetic suspension including a control arrangement for adjusting the suspension gap of said vehicle.
Claim 9
Dependent Claim
39 words
The system defined in claim 5 wherein said armature rail member is provided with a pair of inclined shanks having free ends approaching the shanks of said core member and the shanks of said core member are mutually parallel.
Claim 10
Dependent Claim
34 words
The system defined in claim 5 wherein said core member is provided with the inclined shanks having free ends approaching the shanks of said rail member and said rail member has mutually parallel shanks.
Claim 11
Dependent Claim
28 words
The sYstem defined in claim 5 wherein the inclined shank of each pair includes an angle between substantially 15* and 60* with the other shank of the pair.
References Cited (Backward Citations)
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US3378801A
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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) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |