US3291870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating a multichannel nuclear fuel element
Assignee: Individual
•
Filing: 1964-06-12
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Granted: 1966-12-13
•
Expires: 1984-06-12
Abstract
No abstract record available.
Inventors
- 👤 George S Allison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:30
CPC Classifications
G; G21; G21C; G21C21/00; G21C21/02; G21C21/10; B; B21; B21C; B21C23/00; B21C23/22; B21C33/00; B21C33/002; B21C37/00; B21C37/06; C; C23; C23F; C23F1/00; C23F1/02; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S72/00; Y10S72/70; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T428/00; Y10T428/12; Y10T428/1234
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
A METHOD OF MAKING A MULTICHANNEL FUEL ELEMENT, COMPRISING CLOSELY SURROUNDING A PLURALITY OF RIGHT CIRCULAR CYLINDRICAL FIRST TUBES OF GAS-TIGHT, CORROSION-RESISTANT META WITH COAXIAL TUBES OF FISSIONBLE MATERIAL, SOLIDLY FILLING THE INTERIOR OF THE FIRST TUBES WITH SACRIFICICAL METAL TO FORM A PLURALITY OF COMPONENTS, SEALING EACH OF THE SAID COMPONEENTS IN A TIGHT-FITTING COPPER CONTAINER, HEATING THE SEALED CONTAINER TO EXTRUSION TEMPERATURE, CONVERTING EACH OF THE COMPONENTS TO A HEXAGONAL SHAPE OF SMALLER DIAMETER THAN THAT OF THE COPPER CONTAINER, REMOVING THE COPPER CONTAINER, ARRANGING THE PLURALITY OF COMPONENTS THUS REDUCED IN DIAMETER INTO A CLOSE-PACKED HONEYCOMB CONFIGURATION OF HEXAGONAL SHAPE, SURROUNDING THE CONFIGURATION WITH A CLOSE-FITTING SLEEVE OF FLUIDTIGHT, CORROSION-RESISTANT METAL, FILLING SLEEVE OF FLUIDBETWEEN THE SLEEVE AND THE CONFIGURATION WITH TRANSITION SHAPES, SEALING THE SLEEVE AND ITS CONTENTS IN A SECOND COPPER CONTAINER, HEATING THE ASSEMBLY THUS FORMED WITHIN THE SAID SECOND CONTAINER TO EXTRUSTION TEMPERATURE, EXTRUDING THE SAID ASSEMBLY THROUGH A ROUND DIE OF SMALLER DIAMETER THAN THAT OF THE ASSEMBLY THROUGH A ROUND DIE OF SMALER CONTANER, COVERING THE EXPOSED ENDS OF THE NUCLEAR MATERIAL WITH CHEMICALLY INERT MATERIAL AND REMOVING THE SACRIFICIAL MATERIAL BY CHEMICAL MEANS.
Claim 2
Independent Claim
193 words
A METHOD OF MAKING A MULTICHANNEL FUEL ELEMENT, COMPRISING CLOSELY SURROUNDING A PLURALITY OF RIGHT CIRCULAR CYLINDRICAL FIRST TUBES OF GAS-TIGHT, CORROSION-RESISTANT META WITH COAXIAL TUBES OF FISSIONBLE MATERIAL, SOLIDLY FILLING THE INTERIOR OF THE FIRST TUBES WITH SACRIFICICAL METAL TO FORM A PLURALITY OF COMPONENTS, SEALING EACH OF THE SAID COMPONEENTS IN A TIGHT-FITTING COPPER CONTAINER, HEATING THE SEALED CONTAINER TO EXTRUSION TEMPERATURE, CONVERTING EACH OF THE COMPONENTS TO A HEXAGONAL SHAPE OF SMALLER DIAMETER THAN THAT OF THE COPPER CONTAINER, REMOVING THE COPPER CONTAINER, ARRANGING THE PLURALITY OF COMPONENTS THUS REDUCED IN DIAMETER INTO A CLOSE-PACKED HONEYCOMB CONFIGURATION OF HEXAGONAL SHAPE, SURROUNDING THE CONFIGURATION WITH A CLOSE-FITTING SLEEVE OF FLUIDTIGHT, CORROSION-RESISTANT METAL, FILLING SLEEVE OF FLUIDBETWEEN THE SLEEVE AND THE CONFIGURATION WITH TRANSITION SHAPES, SEALING THE SLEEVE AND ITS CONTENTS IN A SECOND COPPER CONTAINER, HEATING THE ASSEMBLY THUS FORMED WITHIN THE SAID SECOND CONTAINER TO EXTRUSTION TEMPERATURE, EXTRUDING THE SAID ASSEMBLY THROUGH A ROUND DIE OF SMALLER DIAMETER THAN THAT OF THE ASSEMBLY THROUGH A ROUND DIE OF SMALER CONTANER, COVERING THE EXPOSED ENDS OF THE NUCLEAR MATERIAL WITH CHEMICALLY INERT MATERIAL AND REMOVING THE SACRIFICIAL MATERIAL BY CHEMICAL MEANS.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |