US4711182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic suspension for a vehicle
Assignee: SPECIALNOE KONSTRUKTORSKOE BJURO "TRANSPROGRESS" USSR MOSCOW
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Filing: 1985-04-25
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Granted: 1987-12-08
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Expires: 2005-04-25
Abstract
Abstract A magnetic suspension for a vehicle, includes a guide rail vertically mounted on a track and an underframe having a magnetic system surrounding lateral sides of the guide rail on which are mounted strips of permanent magnets. The magnetic system of the underframe also comprises strips of permanent magnets installed on the lateral sides of the underframe facing toward the guide rail, the strips of permanent magnets being installed with a spacing equal to the spacing of the strips of the guide rail, and the polarities of pole facets of the strips facing toward one another being different.
Inventors
- 👤 Adolf M. Alexandrov
- 👤 Evgeny G. Vasiliev
- 👤 Alexandr A. Iskanderov
- 👤 Vladimir S. Magdenko
- 👤 Semen G. Melikov
- 👤 Eduard R. Avsharov
- 👤 Jury A. Tsimbler
- 👤 Vladimir I. Presnyakov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:20
CPC Classifications
B; B65; B65G; B65G9/00; B65G9/002; B60; B60L; B60L13/00; B60L13/04; B65G54/00; B65G54/02; B60L2200/00; B60L2200/26
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
248 words
A magnetic suspension for a vehicle for passenger and freight transportation along a track, comprising: at least one guide rail vertically installed on the track, and having lateral sides of a magnetically conducting material; an underframe surrounding said lateral sides of said guide rail and having a magnetic system; a means for laterally stabilizing the position of said underframe; first strips of permanent magnets extending in a longitudinal direction along the guideway, said first strips comprising a plurality of strips having pole facets which are arranged in an alternating polarity configuration in a vertical array; second strips of permanent magnets extending in a substantially longitudinal direction of the vehicle, said second strips comprising a plurality of strips having pole facets which are arranged in an alternating polarity configuration in a vertical array; said pole facets of said first strips having identical vertical spacing as said pole facets of said second polarity of the two sets of strips of permanent magnets interact to prevent excessive vertical displacement of the vehicle due to the proximity of the magnets to magnets of the opposite set of strips having the same polarity, the pole facets of said first and second strips which are horizontally spaced from each other having opposing polarity. whereby the alternating polarity of the two sets of strips of permanent magnets interact to prevent excessive vertical displacement of the vehicle due to the proximity of the magnets to magnets of the opposite set of strips having the same polarity.
Claim 2
Dependent Claim
248 words
A magnetic suspension for a vehicle for passenger and freight transportation along a track, comprising: at least one guide rail vertically installed on the track, and having lateral sides of a magnetically conducting material; an underframe surrounding said lateral sides of said guide rail and having a magnetic system; a means for laterally stabilizing the position of said underframe; first strips of permanent magnets extending in a longitudinal direction along the guideway, said first strips comprising a plurality of strips having pole facets which are arranged in an alternating polarity configuration in a vertical array; second strips of permanent magnets extending in a substantially longitudinal direction of the vehicle, said second strips comprising a plurality of strips having pole facets which are arranged in an alternating polarity configuration in a vertical array; said pole facets of said first strips having identical vertical spacing as said pole facets of said second polarity of the two sets of strips of permanent magnets interact to prevent excessive vertical displacement of the vehicle due to the proximity of the magnets to magnets of the opposite set of strips having the same polarity, the pole facets of said first and second strips which are horizontally spaced from each other having opposing polarity. whereby the alternating polarity of the two sets of strips of permanent magnets interact to prevent excessive vertical displacement of the vehicle due to the proximity of the magnets to magnets of the opposite set of strips having the same polarity.
Claim 3
Dependent Claim
34 words
A magnetic suspension according to claim 1, wherein; said underframe comprises at least one rigid bracket having substrates of a magnetically conducting material, said second strips of permanent magnets being mounted on said substrates.
Claim 4
Dependent Claim
152 words
A magnetic suspension according to claim 2 wherein the suspension further comprises at least two guide rails having said first strips of permanent magnets installed in a substantially horizontally superposed relationship with one another; a second substrate of a magnetically conducting material installed on said underframe between said guide rails; and third strips of permanent magnets installed in a substantially horizontally superposed relationship with one another on the lateral sides of said second substrate with a spacing identical to the spacing of said first strips of permanent magnets of said guide rails, said third strips of permanent magnets mounted on said second substrate having pole facets with polarities thereof alternating in a vertical direction, said polarities of said pole facets of said third strips of permanent magnets of said substrate and said first strips of magnets of said guide rails facing toward one another and disposed opposite to each other being different.
Claim 5
Dependent Claim
33 words
A magnetic suspension according to claim 3, wherein said guide rails being arranged whereby one of said guide rails being rigidly mounted on the track and a second guide rail being laterally displaceable.
Claim 6
Dependent Claim
39 words
A magnetic suspension according to claim 1 further comprising plates of a non-magnetic electrically conducting material, said plates being installed on said pole facets of said first strips of permanent magnets of said guide rail facing toward said underframe.
Claim 7
Dependent Claim
42 words
A magnetic suspension according to claim 2 further comprising plates of a non-magnetic electrically conducting material, said plates being installed on said pole facets of said first strips of permanent magnets of said guide rail facing toward said bracket of the underframe.
Claim 8
Dependent Claim
44 words
A magnetic suspension according to claim 4 further comprising plates of a non-magnetic electrically conducting material, said plates being installed on said pole facets of said strips of permanent magnets of the guide rails facing toward said substrate and said bracket of the underframe.
Claim 9
Dependent Claim
37 words
A magnetic suspension according to claim 4 wherein said plates of a non-magnetic electrically conducting material being installed on said pole facets of said first strips of permanent magnets of the guide rails facing toward said underframe.
Claim 10
Dependent Claim
28 words
A magnetic suspension according to claim 1, wherein said first and second strips of permanent magnets being made in the form of bars of a magnetically hard material.
Claim 11
Dependent Claim
28 words
A magnetic suspension according to claim 2 wherein said first and second strips of permanent magnets being made in the form of bars of a magnetically hard material.
Claim 12
Dependent Claim
29 words
A magnetic suspension according to claim 3, wherein said first, second and third strips of permanent magnets being made in the form of bars of a magnetically hard material.
Claim 13
Dependent Claim
29 words
(Amended) A magnetic suspension according to claim 6, wherein said first and second strips of permanent magnets being made in the form of bars of a magnetically hard material.
Claim 14
Dependent Claim
15 words
A magnetic suspension according to claim 9, wherein said magnetically hard material is a ferrite.
Claim 15
Dependent Claim
15 words
A magnetic suspension according to claim 10, wherein said magnetically hard material is a ferrite.
Claim 16
Dependent Claim
15 words
A magnetic suspension according to claim 11, wherein said magnetically hard material is a ferrite.
Claim 17
Dependent Claim
15 words
A magnetic suspension according to claim 12, wherein said magnetically hard material is a ferrite.
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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) | 1990-12-07 | 1991-06-08 | 1991-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-07 | 1995-06-08 | 1995-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-07 | 1999-06-08 | 1999-12-08 | $7700.00 | Window Closed / Lapsed |