US3207672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire extinguishing system for nuclear reactors
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1963-07-25
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Granted: 1965-09-21
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Expires: 1983-07-25
Abstract
No abstract record available.
Inventors
- 👤 Costes Didier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:52
CPC Classifications
G; G21; G21C; G21C9/00; G21C9/04; C; C02; C02F; C02F3/00; C02F3/28; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
APPARATUS FOR EXTINGUISHING A FIRE IN ANY ONE OF A PLURALITY OF VERTICAL FUEL CHANNELS OF A GAS COOLED NUCLEAR REACTOR, COMPRISING A MAGAZINE FOR STORING NON-COMBUSTIBLE MATERIAL IN DIVIDED FORM AND POSITIONED AT A LEVEL ABOVE THAT OF THE UPPER ENDS OF SAID CHANNELS, CONNECTING LINE MEANS SELECTIVELY OPERABLE FOR CONNECTING SAID MAGAZINE TO THE UPPER END OF A SELECTED CHANNEL, SAID CONNECTING LINE MEANS INCLUDING VALVE MEANS NORMALLY PREVENTING THE DOWNFLOW OF SAID MATERIAL FROM THE MAGAZINE TO THE SELECTED CHANNEL, MEANS FOR ACTUATING SAID VALVE MEANS TO OPEN CONDITION ON SELECTIVE CONNECTION WITH A CHANNEL, AND MEANS IN EACH CHANNEL FOR RETAINING THEREIN THE MATERIAL FED THEREINTO.
Claim 2
Dependent Claim
110 words
APPARATUS FOR EXTINGUISHING A FIRE IN ANY ONE OF A PLURALITY OF VERTICAL FUEL CHANNELS OF A GAS COOLED NUCLEAR REACTOR, COMPRISING A MAGAZINE FOR STORING NON-COMBUSTIBLE MATERIAL IN DIVIDED FORM AND POSITIONED AT A LEVEL ABOVE THAT OF THE UPPER ENDS OF SAID CHANNELS, CONNECTING LINE MEANS SELECTIVELY OPERABLE FOR CONNECTING SAID MAGAZINE TO THE UPPER END OF A SELECTED CHANNEL, SAID CONNECTING LINE MEANS INCLUDING VALVE MEANS NORMALLY PREVENTING THE DOWNFLOW OF SAID MATERIAL FROM THE MAGAZINE TO THE SELECTED CHANNEL, MEANS FOR ACTUATING SAID VALVE MEANS TO OPEN CONDITION ON SELECTIVE CONNECTION WITH A CHANNEL, AND MEANS IN EACH CHANNEL FOR RETAINING THEREIN THE MATERIAL FED THEREINTO.
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |