US2997435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure vessels
Assignee: The General Electric Company PLC
•
Filing: 1956-05-31
•
Granted: 1961-08-22
•
Expires: 1976-05-31
Abstract
No abstract record available.
Inventors
- 👤 Millar Robert Neil
- 👤 Mitchell Keith James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:11
CPC Classifications
G; G21; G21C; G21C13/00; G21C13/08; G21C13/087; G21C1/00; G21C1/04; G21C1/06; G21C1/08; G21C1/10; G21C1/12; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
IN A PRESSURIZED GAS-COOLED NUCLEAR REACTOR: AN OUTER PRESSURE-RESISTANT ENCLOSING SHELL, AN APERTURED SUPPORTING GRID CONTAINED WITHIN SAID OUTER SHELL, AN INTERNAL HEAT-RESISTANT CYLINDRICAL SHELL MEMBER SUPPORTED IN SPACED RELATION TO SAID OUTER SHELL AND WITH ITS OPEN BASE IN SUBSTANTIALLY CLOSE PROXIMITY TO SAID SUPPORTING GRID, A HEATRESISTANT END MEMBER ARRANGED SUBSTANTIALLY TO CLOSE THE TOP END OF SAID CYLINDRICAL MEMBER, MEANS ARRANGED FOR THE INTRODUCTION OF A MAIN SUPPLY OF COOLING GAS INTO SAID OUTER SHELL, MEANS ARRANGED FOR THE PASSAGE OF COOLING GAS FROM SAID CYLINDRICAL AND END MEMBER COMBINATION AND OUT THROUGH SAID OUTER SHELL, GAS SEALING MEANS ARRANGED TO ENSURE THAT SUBSTANTIALLY ALL SAID MAIN SUPPLY OF COOLING GAS SHOULD BE DIVERTED UPWARDS THROUGH SAID SUPPORTING GRID, AN APERTURED GAS DEFLECTOR MEMBER INTERPOSED BETWEEN SAID OPEN BASE AND THE OUTER SHELL AND ARRANGED BELOW SAID SUPPORTING GRID, AND MEANS PROVIDING OPENINGS FOR THE FLOW OF A RELATIVELY SMALL QUANTITY OF COOLING GAS INWARDS THROUGH SAID CYLINDRICAL AND END MEMBER COMBINATION.
Claim 2
Dependent Claim
165 words
IN A PRESSURIZED GAS-COOLED NUCLEAR REACTOR: AN OUTER PRESSURE-RESISTANT ENCLOSING SHELL, AN APERTURED SUPPORTING GRID CONTAINED WITHIN SAID OUTER SHELL, AN INTERNAL HEAT-RESISTANT CYLINDRICAL SHELL MEMBER SUPPORTED IN SPACED RELATION TO SAID OUTER SHELL AND WITH ITS OPEN BASE IN SUBSTANTIALLY CLOSE PROXIMITY TO SAID SUPPORTING GRID, A HEATRESISTANT END MEMBER ARRANGED SUBSTANTIALLY TO CLOSE THE TOP END OF SAID CYLINDRICAL MEMBER, MEANS ARRANGED FOR THE INTRODUCTION OF A MAIN SUPPLY OF COOLING GAS INTO SAID OUTER SHELL, MEANS ARRANGED FOR THE PASSAGE OF COOLING GAS FROM SAID CYLINDRICAL AND END MEMBER COMBINATION AND OUT THROUGH SAID OUTER SHELL, GAS SEALING MEANS ARRANGED TO ENSURE THAT SUBSTANTIALLY ALL SAID MAIN SUPPLY OF COOLING GAS SHOULD BE DIVERTED UPWARDS THROUGH SAID SUPPORTING GRID, AN APERTURED GAS DEFLECTOR MEMBER INTERPOSED BETWEEN SAID OPEN BASE AND THE OUTER SHELL AND ARRANGED BELOW SAID SUPPORTING GRID, AND MEANS PROVIDING OPENINGS FOR THE FLOW OF A RELATIVELY SMALL QUANTITY OF COOLING GAS INWARDS THROUGH SAID CYLINDRICAL AND END MEMBER COMBINATION.
References Cited (Backward Citations)
US2840522A
Cited
US2782158A
Cited
US2778792A
Cited
US2743225A
Cited
US2780596A
Cited
FR1113339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |