Patent FR849916A successfully refreshed from Google Patents.
Patent US3222256A successfully refreshed from Google Patents.
US3222256A
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Nuclear fuel element with improved end cap assembly
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1962-03-16
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Granted: 1965-12-07
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Expires: 1982-03-16
Abstract
No abstract record available.
Inventors
- 👤 Fletcher Frederick Owen
- 👤 Taylor Alan Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:38
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/06; G21C3/10; G21C3/14; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A NUCLEAR REACTOR FUEL ELEMENT COMPRISING FISSILE MATERIAL ENCLOSED IN A TUBULAR SHEATH, EACH END OF THE SHEATH BEING CLOSED BY AN END CAP SEALED TO THE SHEATH BY A FIRST CIRCUMFERENTIAL EDGE WELD, SCREW THREADS DEFINED BETWEEN AND JOINING MECHANICALLY EACH OF SAID END CAPS AND SAID SHEATH, A SHROUD MEMBER AT EACH END OF THE ELEMENT ENCLOSING EACH OF SAID FIRST EDGE WELDS AND JOINED TO THE SHEATH BY A SECOND CIRCUMFERENTIAL EDGE WELD AND TO THE END CAP BY SCREW THREADS, AND A CIRCUM-
Claim 2
Dependent Claim
87 words
A NUCLEAR REACTOR FUEL ELEMENT COMPRISING FISSILE MATERIAL ENCLOSED IN A TUBULAR SHEATH, EACH END OF THE SHEATH BEING CLOSED BY AN END CAP SEALED TO THE SHEATH BY A FIRST CIRCUMFERENTIAL EDGE WELD, SCREW THREADS DEFINED BETWEEN AND JOINING MECHANICALLY EACH OF SAID END CAPS AND SAID SHEATH, A SHROUD MEMBER AT EACH END OF THE ELEMENT ENCLOSING EACH OF SAID FIRST EDGE WELDS AND JOINED TO THE SHEATH BY A SECOND CIRCUMFERENTIAL EDGE WELD AND TO THE END CAP BY SCREW THREADS, AND A CIRCUM-
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |