Patent US4536189A successfully refreshed from Google Patents.
Patent US3072555A successfully refreshed from Google Patents.
US3072555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear piles
Assignee: Cegelec SA
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Filing: 1960-07-05
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Granted: 1963-01-08
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Expires: 1980-07-05
Abstract
No abstract record available.
Inventors
- 👤 Barth Jacques
- 👤 Roche Edouard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:49
CPC Classifications
G; G21; G21C; G21C1/00; G21C1/04; G21C1/06; G21C1/08; G21C1/082; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
AN INTERNAL-BOILING NUCLEAR PILE COMPRISING HOLLOW CYLINDRICAL FUEL ELEMENTS WHOSE INTERNAL BORE CONSTITUTES A COOLANT CHANNEL, THE SAID ELEMENTS COMPRISING A LOWER PORTION WHERE THE BOILING OF THE COOLANT TAKES PLACE, AN INTERMEDIATE PORTION WHERE THE LIQUID PHASE IS SEPARATED FROM THE VAPOUR PHASE OF THE COOLANT, AND AN UPPER PORTION WHERE THE COOLANT VAPOUR IS SUPER-HEATED, A MODERATOR LOCATED OUTSIDE SAID FUEL ELEMENTS, SAID COOLANT AND SAID MODERATOR CONSISTING OF WATER, HERMETIC CLOSURE MEANS IN THE MODERATOR REGION AT A LEVEL LOCATED IMMEDIATELY ABOVE SAID INTERMEDIATE PORTION OF SAID ELEMENTS IN ORDER TO DEFINE A LOWER REGION IN WHICH THE MODERATOR SURROUNDS SAID LOWER PORTION OF THE FUEL ELEMENTS AND AN UPPER REGION IN WHICH THE MODERATOR SURROUNDS SAID UPPER PORTION OF THE FUEL ELEMENTS, MEANS FOR ADMITTING COLD WATER INTO SAID UPPER REGION, MEANS FOR SLIGHTLY HEATING SAID COLD WATER IN SAID UPPER REGION, AND EXTERNAL CONDUITS FOR PASSING THE SLIGHTLY HEATED WATER BY GRAVITY FROM SAID UPPER REGION INTO SAID LOWER REGION, MEANS FOR FURTHER HEATING OF SAID WATER IN SAID LOWER REGION, MEANS FOR ADMITTING THE THUS FURTHER HEATED WATER TO THE BOTTOM
Claim 2
Dependent Claim
187 words
AN INTERNAL-BOILING NUCLEAR PILE COMPRISING HOLLOW CYLINDRICAL FUEL ELEMENTS WHOSE INTERNAL BORE CONSTITUTES A COOLANT CHANNEL, THE SAID ELEMENTS COMPRISING A LOWER PORTION WHERE THE BOILING OF THE COOLANT TAKES PLACE, AN INTERMEDIATE PORTION WHERE THE LIQUID PHASE IS SEPARATED FROM THE VAPOUR PHASE OF THE COOLANT, AND AN UPPER PORTION WHERE THE COOLANT VAPOUR IS SUPER-HEATED, A MODERATOR LOCATED OUTSIDE SAID FUEL ELEMENTS, SAID COOLANT AND SAID MODERATOR CONSISTING OF WATER, HERMETIC CLOSURE MEANS IN THE MODERATOR REGION AT A LEVEL LOCATED IMMEDIATELY ABOVE SAID INTERMEDIATE PORTION OF SAID ELEMENTS IN ORDER TO DEFINE A LOWER REGION IN WHICH THE MODERATOR SURROUNDS SAID LOWER PORTION OF THE FUEL ELEMENTS AND AN UPPER REGION IN WHICH THE MODERATOR SURROUNDS SAID UPPER PORTION OF THE FUEL ELEMENTS, MEANS FOR ADMITTING COLD WATER INTO SAID UPPER REGION, MEANS FOR SLIGHTLY HEATING SAID COLD WATER IN SAID UPPER REGION, AND EXTERNAL CONDUITS FOR PASSING THE SLIGHTLY HEATED WATER BY GRAVITY FROM SAID UPPER REGION INTO SAID LOWER REGION, MEANS FOR FURTHER HEATING OF SAID WATER IN SAID LOWER REGION, MEANS FOR ADMITTING THE THUS FURTHER HEATED WATER TO THE BOTTOM
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |