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Patent US3229781A successfully refreshed from Google Patents.
US3229781A
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Combination land and air cushion vehicle
Assignee: Westland Group PLC
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Filing: 1962-07-27
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Granted: 1966-01-18
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Expires: 1982-07-27
Abstract
No abstract record available.
Inventors
- 👤 Jones Richard Stanton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:51
CPC Classifications
F; F41; F41H; F41H7/00; F41H7/02; B; B60; B60F; B60F3/00; B60F3/0061; B60P; B60P3/00; B60P3/42; B60V; B60V1/00; B60V1/11; B60V1/115; B62; B62D; B62D55/00; B62D55/08; B62D55/104; B62D55/112; B62D55/1125; B62D57/00; B62D57/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
IN COMBINATION, A LAND VEHICLE, TRACTION MEANS FOR PROPELLING SAID VEHICLE ON THE GROUND, SAID VEHICLE HAVING FRONT, REAR AND SIDE PERIPHERAL SURFACES, MEANS ATTACHED TO SAID PERIPHERAL SURFACES FOR DECREASING THE SURFACE DISPLACEMENT OF THE LAND VEHICLE, SAID MEANS COMPRISING A FLEXIBLE BASE SKIRTING SECURED TO SAID PERIPHERAL SURFACES AND EXTENDING DOWNWARDLY AND ENCOMPASSING THE VEHICLE AND MEANS FOR INDUCING PRESSURIZED AIR WITHIN SAID FLEXIBLE SKIRT TO GENERATE A GROUND EFFECT AIR CUSHION TO REDUCE THE SURFACE PRESSURE APPLIED BY GROUND CONTACT OF THE TRACTION MEANS OF THE VEHICLE.
Claim 2
Dependent Claim
90 words
IN COMBINATION, A LAND VEHICLE, TRACTION MEANS FOR PROPELLING SAID VEHICLE ON THE GROUND, SAID VEHICLE HAVING FRONT, REAR AND SIDE PERIPHERAL SURFACES, MEANS ATTACHED TO SAID PERIPHERAL SURFACES FOR DECREASING THE SURFACE DISPLACEMENT OF THE LAND VEHICLE, SAID MEANS COMPRISING A FLEXIBLE BASE SKIRTING SECURED TO SAID PERIPHERAL SURFACES AND EXTENDING DOWNWARDLY AND ENCOMPASSING THE VEHICLE AND MEANS FOR INDUCING PRESSURIZED AIR WITHIN SAID FLEXIBLE SKIRT TO GENERATE A GROUND EFFECT AIR CUSHION TO REDUCE THE SURFACE PRESSURE APPLIED BY GROUND CONTACT OF THE TRACTION MEANS OF THE VEHICLE.
References Cited (Backward Citations)
US936395A
Cited
US1698482A
Cited
US3029042A
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US3042129A
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US3019756A
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FR1251967A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |