US3361857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing a fuel element of fissionable oxide and burnable poison
Assignee: Westinghouse Electric Corp
•
Filing: 1965-12-03
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Granted: 1968-01-02
•
Expires: 1985-12-03
Abstract
No abstract record available.
Inventors
- 👤 Richard G Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:31
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; F; F23; F23G; F23G7/00; F23G7/008; G21C3/02; G21C3/04; G21C3/16; G21C3/623; G21C7/00; G21C7/02; G21C7/04; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
THE METHOD FOR PREPARING A FUEL ELEMEN OF PRECISE DIMENTION EMBODYING A PREDETERMINED PROPORTION OF A BURNABLE POISON FOR USE IN A NUCLEAR REACTOR COMPRISING THE STEPS OF: MIXING QUANTITIES OF FISSIONABLE OXIDE MATERIAL, A SELECTED AMOUNT OF A BURNABLE POISON COMPRISING AN INORGANIC COMPOUND, AND AN ORGANIC BINDER INTO A HOMOGENEOUS BLEND, COMPRESSING THE MIXTURE INTO A COMPACT MASS, HEATING THE COMPACT MASS IN A VACUUM FOR 1 1/2 TO 3 HOURS AT A TEMPERATURE RANGING FROM ABOUT 250* TO 350*C. TO CAUSE THE ORGANIC BINDER TO BE REMOVED BY DECOMPOSITION AND VOLATILIZATION, HEATING THE COMPACT MASS IN A HYDROGEN ATMOSPHERE FOR 1 TO 3 HOURS AT A TEMPERATURE RANGING FROM ABOUT 600* TO 700*C. TO REMOVE EXCESS OXYGEN, AND SINTERING THE COMPACT MASS IN A HYDROGEN ATMOSPHERE FOR 1 TO 6 HOURS AT A TEMPERATURE RANGING FROM ABOUT 1500* TO 1800*C.
Claim 2
Independent Claim
143 words
THE METHOD FOR PREPARING A FUEL ELEMEN OF PRECISE DIMENTION EMBODYING A PREDETERMINED PROPORTION OF A BURNABLE POISON FOR USE IN A NUCLEAR REACTOR COMPRISING THE STEPS OF: MIXING QUANTITIES OF FISSIONABLE OXIDE MATERIAL, A SELECTED AMOUNT OF A BURNABLE POISON COMPRISING AN INORGANIC COMPOUND, AND AN ORGANIC BINDER INTO A HOMOGENEOUS BLEND, COMPRESSING THE MIXTURE INTO A COMPACT MASS, HEATING THE COMPACT MASS IN A VACUUM FOR 1 1/2 TO 3 HOURS AT A TEMPERATURE RANGING FROM ABOUT 250* TO 350*C. TO CAUSE THE ORGANIC BINDER TO BE REMOVED BY DECOMPOSITION AND VOLATILIZATION, HEATING THE COMPACT MASS IN A HYDROGEN ATMOSPHERE FOR 1 TO 3 HOURS AT A TEMPERATURE RANGING FROM ABOUT 600* TO 700*C. TO REMOVE EXCESS OXYGEN, AND SINTERING THE COMPACT MASS IN A HYDROGEN ATMOSPHERE FOR 1 TO 6 HOURS AT A TEMPERATURE RANGING FROM ABOUT 1500* TO 1800*C.
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) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |