US3239023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground effect machines
Assignee: Westland Group PLC
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Filing: 1962-11-09
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Granted: 1966-03-08
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Expires: 1982-11-09
Abstract
No abstract record available.
Inventors
- 👤 Richard S Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:23
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/06; B60V1/11; B60V1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN A GROUND EFFECT MACHINE, A RIGID BASE STRUCTURE, A SUBSTANTIALLY FLUIDTIGHT MEMBER EXTENDING DOWNWARDLY FROM SAID BASE STRUCTURE AROUND THE PERIPHERY THEREOF TO FORM AN OPEN-BOTTOMED CHAMBER UNDER SAID BASE STRUCTURE, SAID MEMBER HAVING DOWNWARDLY EXTENDING PASSAGES THEREIN AND OPENINGS ALONG THE LOWER EDGE, PRESSURIZED GAS GENERATING MEANS FOR DISCHARGING PRESSURIZED GAS DOWNWARDLY IN SAID PASSAGES TO GENERATE AND MAINTAIN A PRESSURIZED GAS SUPPORTING CUSHION UNDER SAID BASE STRUCTURE, AT LEAST ONE STABILIZING MEMBER EXTENDING DOWNWARDLY FROM SAID BASE STRUCTURE INTO SAID CHAMBER TO DIVIDE SAID CHAMBER INTO A PLURALITY OF SUB-CHAMBERS, SAID STABILIZING MEMBER HAVING OPENINGS ALONG THE LOWER EDGE FOR DISCHARGING PRESSURIZED GAS, MEANS FOR FORMING AT LEAST ONE GAP BETWEEN ADJACENT SUB-CHAMBERS FOR PASSAGE OF PRESSURIZED SUPPORTING GAS BETWEEN SAID SUBCHAMBERS, AND MEANS LOCATED IN THE GAP OF PERMITTING VARIATION IN THE SIZE OF SAID GAP.
Claim 2
Dependent Claim
140 words
IN A GROUND EFFECT MACHINE, A RIGID BASE STRUCTURE, A SUBSTANTIALLY FLUIDTIGHT MEMBER EXTENDING DOWNWARDLY FROM SAID BASE STRUCTURE AROUND THE PERIPHERY THEREOF TO FORM AN OPEN-BOTTOMED CHAMBER UNDER SAID BASE STRUCTURE, SAID MEMBER HAVING DOWNWARDLY EXTENDING PASSAGES THEREIN AND OPENINGS ALONG THE LOWER EDGE, PRESSURIZED GAS GENERATING MEANS FOR DISCHARGING PRESSURIZED GAS DOWNWARDLY IN SAID PASSAGES TO GENERATE AND MAINTAIN A PRESSURIZED GAS SUPPORTING CUSHION UNDER SAID BASE STRUCTURE, AT LEAST ONE STABILIZING MEMBER EXTENDING DOWNWARDLY FROM SAID BASE STRUCTURE INTO SAID CHAMBER TO DIVIDE SAID CHAMBER INTO A PLURALITY OF SUB-CHAMBERS, SAID STABILIZING MEMBER HAVING OPENINGS ALONG THE LOWER EDGE FOR DISCHARGING PRESSURIZED GAS, MEANS FOR FORMING AT LEAST ONE GAP BETWEEN ADJACENT SUB-CHAMBERS FOR PASSAGE OF PRESSURIZED SUPPORTING GAS BETWEEN SAID SUBCHAMBERS, AND MEANS LOCATED IN THE GAP OF PERMITTING VARIATION IN THE SIZE OF SAID GAP.
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |