Patent US3138009A successfully refreshed from Google Patents.
US3138009A
Expired / Lapsed
US
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Transpiration cooling system
Assignee: General Electric Co
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Filing: 1957-04-17
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Granted: 1964-06-23
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Expires: 1977-04-17
Abstract
No abstract record available.
Inventors
- 👤 Louis R Mccreight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:12
CPC Classifications
B; B64; B64D; B64D13/00; B64D13/006; Y; Y02; Y02T; Y02T50/00; Y02T50/40; Y10; Y10S; Y10S60/00; Y10S60/909; Y10S62/00; Y10S62/05; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12042; Y10T428/12063; Y10T428/1209
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A TRANSPIRATION COOLED SKIN STRUCTURE COMPRISING A PLURALITY OF LAYERS OF PORPOUS MATERIAL, EACH OF SAID LAYRS HAVING A SUBSTANTIALLY UNIFORM POROSITY THROUGHOUT ITS CROSS-SECTION, A FLUID RESERVOIR BACKING UP SAID LAYERS WITH A FLUID UNDER PRESSURE, THE POROSITY AND THICKNESS OF SAID LAYERS DECREASING FROM THE INSIDE OUT SUCH THAT THE INNERMOST OF SAID LAYERS IS DESIGNED PRIMARILY FOR STRUCTURAL SUPPORT AND TO REQUIRE MINIMIZED PRESSSURE FROM SAID RESERVOIR TO FORCE SAID FLUID THERETHROUGH AND THE OUTERMOST OF SAID LAYERS IS DESIGNED TO PROVIDE SMALLER AND MORE NUMEROUS POROUS OPENINGS TO CONTROL THE RATE OF FLUID TRANSPIRATION THERETHROUGH.
Claim 2
Dependent Claim
99 words
A TRANSPIRATION COOLED SKIN STRUCTURE COMPRISING A PLURALITY OF LAYERS OF PORPOUS MATERIAL, EACH OF SAID LAYRS HAVING A SUBSTANTIALLY UNIFORM POROSITY THROUGHOUT ITS CROSS-SECTION, A FLUID RESERVOIR BACKING UP SAID LAYERS WITH A FLUID UNDER PRESSURE, THE POROSITY AND THICKNESS OF SAID LAYERS DECREASING FROM THE INSIDE OUT SUCH THAT THE INNERMOST OF SAID LAYERS IS DESIGNED PRIMARILY FOR STRUCTURAL SUPPORT AND TO REQUIRE MINIMIZED PRESSSURE FROM SAID RESERVOIR TO FORCE SAID FLUID THERETHROUGH AND THE OUTERMOST OF SAID LAYERS IS DESIGNED TO PROVIDE SMALLER AND MORE NUMEROUS POROUS OPENINGS TO CONTROL THE RATE OF FLUID TRANSPIRATION THERETHROUGH.
References Cited (Backward Citations)
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US2447200A
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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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |