US3170530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile air supported vehicle
Assignee: Individual
•
Filing: 1961-03-23
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Granted: 1965-02-23
•
Expires: 1981-03-23
Abstract
No abstract record available.
Inventors
- 👤 Richard W Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:58
CPC Classifications
B; B60; B60V; B60V3/00; B60V3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
A LIFT UNIT FOR AN AIR SUPPORTED VEHICLE COMPRISING A GIMBAL RING, A FAN SHROUD MOUNTED IN SAID GIMBAL RING, A FAN DISPOSED IN SAID SHROUD, A FAN DRIVING ENGINE SUPPORTED BY SAID GIMBAL RING AND CARRYING SAID FAN, A SKIRT OF PLIABLE MATERIAL DISPOSED BELOW SAID FAN AND COMPRISING AN OUTER WALL HAVING ITS UPPER END SURROUNDING AND SECURED TO SAID FAN SHROUD, AN INNER WALL HAVING ITS UPPER END SURROUNDING AND SECURED TO A PORTION OF SAID ENGINE BELOW SAID FAN, THE RADIAL DISTANCE BETWEEN THE UPPER ENDS OF SAID WALLS BEING SUBSTANTIALLY EQUAL TO THE LENGTH OF THE BLADES OF SAID FAN SO THAT THE AIR MOVED BY SAID FAN IS FORCED INTO THE ANNULAR SPACE BETWEEN THE OUTER AND INNER WALLS OF SAID SKIRT, AND A PERFORATED ANNULAR MEMBER SECURED AT ITS OUTER AND INNER EDGES TO THE BOTTOM EDGES OF SAID OUTER AND INNER WALLS, SAID ANNULAR MEMBER BEING EFFECTIVE TO PROVIDE AN ANNULAR AIR JET IMPINGING ON THE UNDERLYING GROUND SURFACE TO RAISE SAID LIFT UNIT ABOVE THE GROUND AND SAID INNER WALL CONSTITUTING A BELL-SHAPED OPEN BOTTOM PLENUM CHAMBER TO ASSIST IN MAINTAINING SAID UNIT ABOVE THE GROUND SURFACE.
Claim 2
Dependent Claim
259 words
IN AN AIR SUPPORTED VEHICLE, A FRAME HAVING AT LEAST THERE DIVERGENT ARMS, A LIFT UNIT UNDER EACH OF SAID ARMS AND EACH COMPRISING AN OUTER GIMBAL RING ROCKABLY SECURED TO THE CORRESPONDING ARM, AN INNER GIMBAL RING ROCKABLY MOUNTED IN SAID OUTER RING, A FAN SHROUD MOUNTED IN SAID INNER RING, A POWER DRIVEN FAN SHROUD MOUNTED SHROUD, A SKIRT OF PLIABLE MATERIAL DEPENDING FROM SAID SHROUD, AND TRICING LINES ARRANGED AT ANGULAR INTERVALS AROUND SAID SKIRT AND DIVIDED INTO TWO GROUPS DISPOSED ONE GROUP AT EACH SIDE OF SAID SKIRT, AN OPERATOR''S PLATFORM MOUNTED ON SAID FRAME, AND VEHICLE CONTROL MEANS MOUNTED ON SAID PLATFORM AND INCLUDING ONE OR MORE CONTROL COMPONENTS SO CONNECTED TO SAID GROUPS OF TRICING LINES THAT THE BOTTOM EDGES OF CORRESPONDING SIDES OF ALL OF SAID LIFT UNITS CAN BE RAISED SIMULTANEOUSLY TO ASSIST IN THE DIRECTIONAL CONTROL OF SAID VEHICLE 109 IN AN AIR SUPPORTED VEHICLE, A FRAME HAVING AT LEAST THREE DIVERGENT ARMS, A LIFT UNIT DISPOSED BELOW AND CONNECTED TO EACH SAID ARMS, EACH OF SAID LIFT UNITS HAVING A GIMBAL RING CONNECTION WITH THE ASSOCIATED ARM TO ENABLE SAID LIFT UNITS TO ASSUME DIFFERENT INDIVIDUAL POSITIONS RELATIVE TO SAID FRAME AND EACH LIFT UNIT HAVING A SKIRT OF PLIABLE FABRIC MATERIAL TO FACILITATE PASSAGE OF SAID LIFT UNITS PAST OBSTRUCTIONS IN THE PATH OF SAID VEHICLE, A PLATFORM MOUNTED ON SAID FRAME, VEHICLE PROPULSION MEANS MOUNTED ON SAID PLATFORM, AND VEHICLE CONTROL MEANS MOUNTED ON SAID PLATFORM AND OPERATIVELY CONNECTED TO SAID PROPULSION MEANS AND SAID LIFT UNITS.
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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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |