Patent US3999110A successfully refreshed from Google Patents.
US3240282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable components for ground effect vehicles
Assignee: Westland Group PLC
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Filing: 1962-11-09
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Granted: 1966-03-15
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Expires: 1982-11-09
Abstract
No abstract record available.
Inventors
- 👤 Taylor Norman Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:57
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/06; B60V1/11; B60V1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A GROUND EFFECT VEHICLE, A RIGID BASE STRUCTURE MEANS FORMING A DOWNWARDLY DIRECTED DUCT SUBSTANTIALLY AROUND THE PERIPHERY OF SAID RIGID BASE STRUCTURE, A FLEXIBLE SKIRTING MEMBER HAVING INNER AND OUTER WALLS ATTACHED TO SAID RIGID BASE STRUCTURE AND EXTENDING DOWWARDLY THEREFROM TO FORM A CONTINUATION OF SAID DOWNWARDLY DIRECTED PERIPHERAL DUCT, SAID FLEXIBLED SKIRTING MEMBER BEING OPEN AT ITS LOWER EDGE SO AS TO PERMIT PRESSURIZED FLUID TO PASS FROM SAID DUCT DOWNWARDLY TO BE DISCHARGED FROM SAID FLEXIBLE SKIRTING MEMBER AT THE LOWER EDGE THEREOF, AND MEANS FOR RETRACTING SAID FLEXIBLE SKIRTING MEMBER UPWARDLY INTO SAID DOWNWARDLY DIRECTED DUCT IN SAID RIGID BASE STRUCTURE, WHILE MAINTAINING THE DISCHARGE OF PRESSURIZED FLUID FROM SAID FLEXIBLE SKIRTING MEMBER.
Claim 2
Dependent Claim
119 words
IN A GROUND EFFECT VEHICLE, A RIGID BASE STRUCTURE MEANS FORMING A DOWNWARDLY DIRECTED DUCT SUBSTANTIALLY AROUND THE PERIPHERY OF SAID RIGID BASE STRUCTURE, A FLEXIBLE SKIRTING MEMBER HAVING INNER AND OUTER WALLS ATTACHED TO SAID RIGID BASE STRUCTURE AND EXTENDING DOWWARDLY THEREFROM TO FORM A CONTINUATION OF SAID DOWNWARDLY DIRECTED PERIPHERAL DUCT, SAID FLEXIBLED SKIRTING MEMBER BEING OPEN AT ITS LOWER EDGE SO AS TO PERMIT PRESSURIZED FLUID TO PASS FROM SAID DUCT DOWNWARDLY TO BE DISCHARGED FROM SAID FLEXIBLE SKIRTING MEMBER AT THE LOWER EDGE THEREOF, AND MEANS FOR RETRACTING SAID FLEXIBLE SKIRTING MEMBER UPWARDLY INTO SAID DOWNWARDLY DIRECTED DUCT IN SAID RIGID BASE STRUCTURE, WHILE MAINTAINING THE DISCHARGE OF PRESSURIZED FLUID FROM SAID FLEXIBLE SKIRTING MEMBER.
References Cited (Backward Citations)
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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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |