US3231476A
Expired / Lapsed
US
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Nuclear fuel element cluster
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1963-08-12
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Granted: 1966-01-25
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Expires: 1983-08-12
Abstract
No abstract record available.
Inventors
- 👤 Paul Thome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:34
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0042; G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/30; G21C3/32; G21C3/3213; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AN IMPROVED FUEL ELEMENT FOR GAS COOLED NUCLEAR REACTORS OF THE "CLUSTER" ELEMENT TYPE,A PLURALITY OF SHEATHED FUEL RODS INCLUDING A NON-COMBUSTIBLE CENTRAL ROD HELD IN A DEFINITE GEOMETRICAL ARRANGEMENT BY STRUCTURAL ELEMENTS FORMING A SELF CONTAINED UNIT, SAID STRUCTURAL ELEMENTS COMPRISING TWO END GRIDS, AN OUTER JACKET AND TIE RODS BETWEEN SAID GRIDS, FREE SPACES IN SAID CENTRAL ROD AND IN SAID TIE AND FUEL RODS, MINUTE CHANNELS IN ONE OF SAID GRIDS INTERCONNECTING SAID SPACES AND ADDITIONAL FREE SPACES IN SAID NON-COMBUSTIBLE CENTRAL RODS, IN SAID OUTER JACKET AND IN SAID TIE RODS CONNECTED TO SAID CHANNELS.
Claim 2
Dependent Claim
99 words
AN IMPROVED FUEL ELEMENT FOR GAS COOLED NUCLEAR REACTORS OF THE "CLUSTER" ELEMENT TYPE,A PLURALITY OF SHEATHED FUEL RODS INCLUDING A NON-COMBUSTIBLE CENTRAL ROD HELD IN A DEFINITE GEOMETRICAL ARRANGEMENT BY STRUCTURAL ELEMENTS FORMING A SELF CONTAINED UNIT, SAID STRUCTURAL ELEMENTS COMPRISING TWO END GRIDS, AN OUTER JACKET AND TIE RODS BETWEEN SAID GRIDS, FREE SPACES IN SAID CENTRAL ROD AND IN SAID TIE AND FUEL RODS, MINUTE CHANNELS IN ONE OF SAID GRIDS INTERCONNECTING SAID SPACES AND ADDITIONAL FREE SPACES IN SAID NON-COMBUSTIBLE CENTRAL RODS, IN SAID OUTER JACKET AND IN SAID TIE RODS CONNECTED TO SAID CHANNELS.
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |