US3109797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular fuel elements and fabricating techniques therefor
Assignee: Lockheed Martin Corp
•
Filing: 1957-10-01
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Granted: 1963-11-05
•
Expires: 1977-10-01
Abstract
No abstract record available.
Inventors
- 👤 William A Maxwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:09
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/16; G21C3/30; G21C3/32; G21C3/33; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
89 words
A TUBULAR FUEL ELEMENT COMPRISING A PLURALITY OF CERMET COLLARS CONSISTING OF A MATRIX METAL AND DIFFERING PERCENTAGES OF A POWDEROUS OXIDE OF A FISSIONABLE METAL DISPERSED IN SAID MATRIX METAL, SAID MATRIX METAL BEING SELECTED FROM THE GROUP CONSISTING OF STAINLESS STEEL, ALUMINUM, ZIRCONIUM, TITANIUM AND NIOBIUM, SAID COLLARS BEING ARRANGED TO FORM AN INTEGRAL TUBULAR CORE SO THAT THE CONCENTRATION OF SAID OXIDE IS INCREMENTALLY INCREASED FROM THE CENTER OF THE CORE OF BOTH END S THEREOF, AND A CONFORMABLE METAL CASING METALLURGICALLY BONDED TO SAID CORE.
Claim 2
Dependent Claim
89 words
A TUBULAR FUEL ELEMENT COMPRISING A PLURALITY OF CERMET COLLARS CONSISTING OF A MATRIX METAL AND DIFFERING PERCENTAGES OF A POWDEROUS OXIDE OF A FISSIONABLE METAL DISPERSED IN SAID MATRIX METAL, SAID MATRIX METAL BEING SELECTED FROM THE GROUP CONSISTING OF STAINLESS STEEL, ALUMINUM, ZIRCONIUM, TITANIUM AND NIOBIUM, SAID COLLARS BEING ARRANGED TO FORM AN INTEGRAL TUBULAR CORE SO THAT THE CONCENTRATION OF SAID OXIDE IS INCREMENTALLY INCREASED FROM THE CENTER OF THE CORE OF BOTH END S THEREOF, AND A CONFORMABLE METAL CASING METALLURGICALLY BONDED TO SAID CORE.
Claim 3
Dependent Claim
98 words
A NUCLEAR FUEL ELEMENT COMPRISING A CERMET TUBULAR CORE CONSISTING OF A POWDEROUS FISSIONABLE METAL OXIDE DISTRIBUTED IN A METAL MATRIX, SAID METAL MATRIX BEING SELECTED FROM THE GROUP CONSISTING OF STAINLESS STEEL, ALUMINUM, ZIRCONIUM, TITANIUM AND NIOBIUM, INNER AND OUTER METAL CASINGS METALLURGICALLY BONDED TO THE INNER AND OUTER SURFACES OF SAID CORE, SAID CORE BEING CONSTITUTED BY A PLURALITY OF COLLARS OF DIFFERING OXIDE CONCENTRATION, SAID COLLARS BEING ARRANGED TO FORM A TUBULAR CORE UTILIZING COLLARS OF COMPARATIVELY HIGH CONCENTRATION AT THE ENDS OF EACH ELEMENT, GRADUALLY DECREASING IN CONCENTRATION TOWARD THE CENTER OF THE ELEMENT.
Claim 4
Dependent Claim
98 words
A NUCLEAR FUEL ELEMENT COMPRISING A CERMET TUBULAR CORE CONSISTING OF A POWDEROUS FISSIONABLE METAL OXIDE DISTRIBUTED IN A METAL MATRIX, SAID METAL MATRIX BEING SELECTED FROM THE GROUP CONSISTING OF STAINLESS STEEL, ALUMINUM, ZIRCONIUM, TITANIUM AND NIOBIUM, INNER AND OUTER METAL CASINGS METALLURGICALLY BONDED TO THE INNER AND OUTER SURFACES OF SAID CORE, SAID CORE BEING CONSTITUTED BY A PLURALITY OF COLLARS OF DIFFERING OXIDE CONCENTRATION, SAID COLLARS BEING ARRANGED TO FORM A TUBULAR CORE UTILIZING COLLARS OF COMPARATIVELY HIGH CONCENTRATION AT THE ENDS OF EACH ELEMENT, GRADUALLY DECREASING IN CONCENTRATION TOWARD THE CENTER OF THE ELEMENT.
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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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |