Patent US4532825A successfully refreshed from Google Patents.
US3674638A
Expired / Lapsed
US
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Nuclear reactor fuel element assembly
Assignee: Atomic Energy of Canada Ltd AECL
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Filing: 1969-04-15
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Granted: 1972-07-04
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Expires: 1989-04-15
Abstract
Abstract A NUCLEAR REACTOR FUEL ELEMENT ASSEMBLY WHEREIN A PLURALITY OF FUEL ELEMENTS ARE DISPOSED SIDE-BY-SIDE AND ARE JOINED TOGETHER AT AN INTERMEDIATE POSITION ALONG THEIR LENGTHS BY PAIRS OF PADS EACH ONE OF A PAIR BEING BRAZED TO A FUEL ELEMENT CLADDING AND JOINED TO THE OTHER PAD OF THAT PAIR BY A WELD OR BRAZE HAVING A WEAKER BREAKING STRENGTH THAN THE FUEL ELEMENT CALDDINGS. EACH PAIR OF PADS PROVIDES A ROBUST JOINT BETWEEN FUEL ELEMENTS, WHICH WILL BREAK BEFORE RUPTURE OF A FUEL ELEMENT CLADDING OCCURS.
Inventors
- 👤 John Cameron Mcgregor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:30
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/30; G21C3/32; G21C3/336; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |