US3100454A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed ground transportation system
Assignee: Individual
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Filing: 1961-09-27
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Granted: 1963-08-13
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Expires: 1981-09-27
Abstract
No abstract record available.
Inventors
- 👤 David H Dennis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:54
CPC Classifications
B; B61; B61B; B61B13/00; B61B13/12; B61B13/122; B61B13/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
AN AERODYNAMIC TRANSPORT SYSTEM COMPRISING, IN COMBINATION, CONTINUOUS GUIDANCE AND SUPPORTING TRACK MEANS DEFINED BY WALLS HAVING HORIZONTAL AND VERTICAL COMPONENTS, A VEHICLE FOR OPERATION ON THE TRACK, MEANS TO PROPEL THE VEHICLE ON THE TRACK AXIALLY THEREOF, AND AIRFOIL MEANS CARRIED BY THE VEHICLE AND DISPOSED, IN OPERATION, PROXIMATE THE HORIZONTAL AND VERTICAL WALL COMPONENTS BUT SPACED THEREFROM, SAID AIRFOIL MEANS AND WALLS GENERATING, COOPERATIVELY, GROUND EFFECT LIFT FORCES WITH VERTICAL AND HORIZONTAL COMPONENTS DERIVED FROM THE VEHICLE MOTION THROUGH THE AIR MASS, THEREBY TO SUPPORT THE MOVING VEHICLE AERODYNAMICALLY ON THE TRACK IN SPACED RELATION THERETO AND TO IMPART GUIDANCE FORCES TO THE VEHICLE.
Claim 2
Dependent Claim
106 words
AN AERODYNAMIC TRANSPORT SYSTEM COMPRISING, IN COMBINATION, CONTINUOUS GUIDANCE AND SUPPORTING TRACK MEANS DEFINED BY WALLS HAVING HORIZONTAL AND VERTICAL COMPONENTS, A VEHICLE FOR OPERATION ON THE TRACK, MEANS TO PROPEL THE VEHICLE ON THE TRACK AXIALLY THEREOF, AND AIRFOIL MEANS CARRIED BY THE VEHICLE AND DISPOSED, IN OPERATION, PROXIMATE THE HORIZONTAL AND VERTICAL WALL COMPONENTS BUT SPACED THEREFROM, SAID AIRFOIL MEANS AND WALLS GENERATING, COOPERATIVELY, GROUND EFFECT LIFT FORCES WITH VERTICAL AND HORIZONTAL COMPONENTS DERIVED FROM THE VEHICLE MOTION THROUGH THE AIR MASS, THEREBY TO SUPPORT THE MOVING VEHICLE AERODYNAMICALLY ON THE TRACK IN SPACED RELATION THERETO AND TO IMPART GUIDANCE FORCES TO THE VEHICLE.
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |