Patent US3306388A successfully refreshed from Google Patents.
US3306388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground effect vehicles with independent flexible stern skirt section
Assignee: Westland Group PLC
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Filing: 1964-08-12
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Granted: 1967-02-28
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Expires: 1984-08-12
Abstract
No abstract record available.
Inventors
- 👤 Jones Richard Stanton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:01
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A GROUND EFFECT VEHICLE COMPRISING, IN COMBINATION, A BASE, A KEEL EXTENDING LONGITUDINALLY OF THE BASE SUBSTANTIALLY TO THE STERN THEREOF, FLEXIBLE DEPENDING SKIRT MEANS HAVING PORTIONS EXTENDING ALONG THE SIDES OF THE BASE AND TERMINATING ADJACENT THE STERN OF THE BASE AT POINTS SPACED LATERALLY FROM THE TERMINAL END OF SAID KEEL, A PLURALITY OF INDEPENDENT FLEXIBLE INFLATABLE SKIRT SECTIONS FREELY SUSPENDED FROM THE BASE AND DISPOSED BETWEEN THE TERMINAL END OF THE KEEL AND THE TERMINAL ENDS OF SAID SKIRT PORTIONS, SAID INDEPENDENT SKIRT SECTIONS BEING MOVABLE INDEPENDENTLY OF THE ADJACENT SKIRT PORTIONS AND THE KEEL AND BEING INFLATABLE INDEPENDENTLY OF THE ADJACENT SKIRT PORTIONS, THE LATERAL ENDS OF THE INDEPENDENT SKIRT SECTIONS BEING SHAPED TO CONFORM TO THE ADJACENT FACES OF THE LONGITUDINAL KEEL AND ADJACENT SKIRT PORTIONS, WHEREBY TO PROVIDE A FLEXIBLE UNDERSTRUCTURE SYSTEM OF REDUCED STIFFNESS AT AND ADJACENT THE STERN OF THE VEHICLE.
Claim 2
Dependent Claim
149 words
A GROUND EFFECT VEHICLE COMPRISING, IN COMBINATION, A BASE, A KEEL EXTENDING LONGITUDINALLY OF THE BASE SUBSTANTIALLY TO THE STERN THEREOF, FLEXIBLE DEPENDING SKIRT MEANS HAVING PORTIONS EXTENDING ALONG THE SIDES OF THE BASE AND TERMINATING ADJACENT THE STERN OF THE BASE AT POINTS SPACED LATERALLY FROM THE TERMINAL END OF SAID KEEL, A PLURALITY OF INDEPENDENT FLEXIBLE INFLATABLE SKIRT SECTIONS FREELY SUSPENDED FROM THE BASE AND DISPOSED BETWEEN THE TERMINAL END OF THE KEEL AND THE TERMINAL ENDS OF SAID SKIRT PORTIONS, SAID INDEPENDENT SKIRT SECTIONS BEING MOVABLE INDEPENDENTLY OF THE ADJACENT SKIRT PORTIONS AND THE KEEL AND BEING INFLATABLE INDEPENDENTLY OF THE ADJACENT SKIRT PORTIONS, THE LATERAL ENDS OF THE INDEPENDENT SKIRT SECTIONS BEING SHAPED TO CONFORM TO THE ADJACENT FACES OF THE LONGITUDINAL KEEL AND ADJACENT SKIRT PORTIONS, WHEREBY TO PROVIDE A FLEXIBLE UNDERSTRUCTURE SYSTEM OF REDUCED STIFFNESS AT AND ADJACENT THE STERN OF 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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |