US3798125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear fuel subassembly
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1971-11-16
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Granted: 1974-03-19
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Expires: 1991-11-16
Abstract
Abstract A nuclear fuel assembly for a liquid metal cooled fast reactor comprises a bundle of fuel pins in a shroud. Each pin carries a helical spacer fixing the minimum spacing between each pin and the adjacent pins or the shroud. Localized head losses along the lateral subchannels are produced by wires disposed parallel to the inner wall of the shroud and obliquely with respect to the axes of the pins.
Inventors
- 👤 J Skok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:41
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/30; G21C3/32; G21C3/336; G21C3/338; G21C3/322; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
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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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |