Patent US3037839A successfully refreshed from Google Patents.
US3037839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of uo for nuclear reactor fuel pellets
Assignee: Individual
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Filing: 1960-09-30
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Granted: 1962-06-05
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Expires: 1980-09-30
Abstract
No abstract record available.
Inventors
- 👤 John M Googin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:39
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; G21C3/623; C; C01; C01G; C01G43/00; C01G43/01; C01G43/025; C01P; C01P2006/00; C01P2006/10; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/901; Y10S376/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
THE METHOD OF PREPARING HIGH-DENSITY UO2 SHAPES WHICH COMPRISES CONTINUOUSLY CONTACTING AN AQUEOUS URANYL FLOURIDE SOLUTION WITH AN AQUEOUS AMMONIUM HYDROXIDE SOLUTION UNDER CONDITIONS OF THROUGH AGITATION AT AN AMMONIUM-TO-URANIUM RATIO WITHIN THE RANGE FROM 25-TO-1 TO 30-TO-1, SEPARATING THE RESULTING PRECIPITATE FROM THE REMAINING MOTHER LIQUOR, DRYING THE RESULTING SEPARATED PRECIPITATE, CONTACTING THE RESULTING DRIED PRECIPITATE WITH STEAM AT A UNIFORM TEMPERATURE WITHIN THE RANGE OF 400*C. TO 650*C. UNTIL SAID PRECIPITATE IS CONVERTED TO U3O8, CONTACTING SAD U3O8 WITH GASEOUS HYDROGEN AT A UNIFORM TEMPERATURE WITHIN THE RANGE OF 550* C. TO 600*C. UNTIL SAID U3O8 IS CONVERTED TO UO2, COMPRESSING SAID UO2 INTO DISCRETE SHAPES AT A PRESSURE OF AT LEAST 5,000 POUNDS PER SQUARE INCH AND SINTERING THE RESULTING SHAPES IN A REDUCING ATMOSPHERE AT A TEMPERATURE OVER 1500*C.
Claim 2
Independent Claim
133 words
THE METHOD OF PREPARING HIGH-DENSITY UO2 SHAPES WHICH COMPRISES CONTINUOUSLY CONTACTING AN AQUEOUS URANYL FLOURIDE SOLUTION WITH AN AQUEOUS AMMONIUM HYDROXIDE SOLUTION UNDER CONDITIONS OF THROUGH AGITATION AT AN AMMONIUM-TO-URANIUM RATIO WITHIN THE RANGE FROM 25-TO-1 TO 30-TO-1, SEPARATING THE RESULTING PRECIPITATE FROM THE REMAINING MOTHER LIQUOR, DRYING THE RESULTING SEPARATED PRECIPITATE, CONTACTING THE RESULTING DRIED PRECIPITATE WITH STEAM AT A UNIFORM TEMPERATURE WITHIN THE RANGE OF 400*C. TO 650*C. UNTIL SAID PRECIPITATE IS CONVERTED TO U3O8, CONTACTING SAD U3O8 WITH GASEOUS HYDROGEN AT A UNIFORM TEMPERATURE WITHIN THE RANGE OF 550* C. TO 600*C. UNTIL SAID U3O8 IS CONVERTED TO UO2, COMPRESSING SAID UO2 INTO DISCRETE SHAPES AT A PRESSURE OF AT LEAST 5,000 POUNDS PER SQUARE INCH AND SINTERING THE RESULTING SHAPES IN A REDUCING ATMOSPHERE AT A TEMPERATURE OVER 1500*C.
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) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |