US3262858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear reactor fuel elements
Assignee: United Kingdom Atomic Energy Authority
•
Filing: 1963-05-31
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Granted: 1966-07-26
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Expires: 1983-05-31
Abstract
No abstract record available.
Inventors
- 👤 Gittus John Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:26
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/30; G21C3/32; G21C3/336; G21C3/338; G21C3/02; G21C3/04; G21C3/042; G21C3/044; G21C3/16; G21C3/20; G21C3/26; G21C3/322; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/936; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12424; Y10T428/12479; Y10T428/12486; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12826
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A NUCLEAR REACTOR FUEL ELEMENT COMPRISING A BUNDLE OF FILAMENTS OF NUCLEAR FUEL MATERIAL EXTENDING THE FULL LENGTH OF THE FUEL ELEMENTS, THE FILAMENTS BEING COATED WITH CLADDING MATERIAL AND BEING SINTERED TOGETHER IN THE BUNDLE ALONG THE LINES OF CONTACT OF THE CLADDING MATERIAL THE FUEL ELEMENTS, THE COMPOSITE STRUCTURE CONTAINING 10-50 VOLUME PERCENT OF POROSITY IN THE FORM OF PORES DEFINED BETWEEN THE FILAMENTS, SEPARATE FROM ONE ANOTHER, AND EXTENDING ALONG THE LENGTH OF THE FUEL ELEMENT, SO THAT IN USE OF THE FUEL ELEMENT IN A NUCLEAR REACTOR, COOLANT CAN PASS THROUGH THE PORES IN THE FUEL ELEMENT AS WELL AS OVER ITS OUTER SURFACE.
Claim 2
Dependent Claim
108 words
A NUCLEAR REACTOR FUEL ELEMENT COMPRISING A BUNDLE OF FILAMENTS OF NUCLEAR FUEL MATERIAL EXTENDING THE FULL LENGTH OF THE FUEL ELEMENTS, THE FILAMENTS BEING COATED WITH CLADDING MATERIAL AND BEING SINTERED TOGETHER IN THE BUNDLE ALONG THE LINES OF CONTACT OF THE CLADDING MATERIAL THE FUEL ELEMENTS, THE COMPOSITE STRUCTURE CONTAINING 10-50 VOLUME PERCENT OF POROSITY IN THE FORM OF PORES DEFINED BETWEEN THE FILAMENTS, SEPARATE FROM ONE ANOTHER, AND EXTENDING ALONG THE LENGTH OF THE FUEL ELEMENT, SO THAT IN USE OF THE FUEL ELEMENT IN A NUCLEAR REACTOR, COOLANT CAN PASS THROUGH THE PORES IN THE FUEL ELEMENT AS WELL AS OVER ITS OUTER SURFACE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |