US3194852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of uranium oxide bodies
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1960-06-16
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Granted: 1965-07-13
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Expires: 1980-06-16
Abstract
No abstract record available.
Inventors
- 👤 Lloyd Henry
- 👤 Williams Neville Ronald
- 👤 Wheatley Christopher Came Hope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:03
CPC Classifications
C; C01; C01G; C01G43/00; C01G43/01; C01G43/025; G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; G21C3/623; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
119 words
A METHOD OF PRODUCING A DENSE URANIUM DIOXIDE BODY, COMPRISING THE STEPS OF MIXING POWDERED URANIUM DIOXIDE HAVING AN OXYGEN TO URANIUM ATOMIC RATIO OF LESS THAN 2.3 WITH AN ORGANIC BINDING AGENT; COLD-COMPACTING THE MIXTURE INTO A BODY AT A PRESSURE OF AT LEAST 20 TONS/ SQ. IN. TO YIELD A COMPACTED BODY; HEATING SAID COMPACTED BODY TO A TEMPERATURE IN THE RANGE 200* C. TO 250* C. IN AN OXIDISING ATMOSPHERE UNTIL THE OXYGEN TO URANIUM RATIO IS AT LEAST 2.3 AND AT LEAST A LARGE PART OF THE BINDING AGENT IS REMOVED; AND THEREAFTER HEATING THE BODY IN AN INERT ATMOSPHERE TO A TEMPERATURE OF 1300* C. TO 1500* C., THEREBY OBTAINING A DENSE NON-STOICHIOMETRIC BODY.
Claim 2
Independent Claim
119 words
A METHOD OF PRODUCING A DENSE URANIUM DIOXIDE BODY, COMPRISING THE STEPS OF MIXING POWDERED URANIUM DIOXIDE HAVING AN OXYGEN TO URANIUM ATOMIC RATIO OF LESS THAN 2.3 WITH AN ORGANIC BINDING AGENT; COLD-COMPACTING THE MIXTURE INTO A BODY AT A PRESSURE OF AT LEAST 20 TONS/ SQ. IN. TO YIELD A COMPACTED BODY; HEATING SAID COMPACTED BODY TO A TEMPERATURE IN THE RANGE 200* C. TO 250* C. IN AN OXIDISING ATMOSPHERE UNTIL THE OXYGEN TO URANIUM RATIO IS AT LEAST 2.3 AND AT LEAST A LARGE PART OF THE BINDING AGENT IS REMOVED; AND THEREAFTER HEATING THE BODY IN AN INERT ATMOSPHERE TO A TEMPERATURE OF 1300* C. TO 1500* C., THEREBY OBTAINING A DENSE NON-STOICHIOMETRIC BODY.
Claim 3
Independent Claim
143 words
A METHOD OF PRODUCING A DENSE URANIUM DIOXIDE BODY, COMPRISING THE STEPS OF MIXING POWDERED URANIUM DIOXIDE HAVING AN OXYGEN TO URANIUM ATOMIC RATIO OF LESS THAN 2.3 WITH AN ORGANIC BINDING AGENT; COMPACTING THE MIXTURE INTO A BODY AT A PRESSURE OF AT LEAST 20 TONS/SQ. IN. TO YIELD A COMPACTED BODY HAVING A DENSITY OF AT LEAST 6 GM./CC; THEN HEATING SAID COMPACTED BODY TO A TEMPERATURE IN THE RANGE 200* C. TO 250* C. IN AN OXIDISING ATMOSPHERE UNTIL THE OXYGEN TO URANIUM RATIO IS AT LEAST 2.3 AND AT LEAST A LARGE PART OF THE BINDING AGENT IS REMOVED; SUBSEQUENTLY HEATING SAID BODY IN AN INERT ATMOSPHERE TO A TEMPERATURE OF 1300* C. TO 1500* C. AND THEREAFTER HEATING THE BODY IN A REDUCING ATMOSPHERE AT A TEMPERATURE OF AT LEAST 1000* C., THEREBY PRODUCING A DENSE STOICHIOMETRIC BODY.
Claim 4
Independent Claim
143 words
A METHOD OF PRODUCING A DENSE URANIUM DIOXIDE BODY, COMPRISING THE STEPS OF MIXING POWDERED URANIUM DIOXIDE HAVING AN OXYGEN TO URANIUM ATOMIC RATIO OF LESS THAN 2.3 WITH AN ORGANIC BINDING AGENT; COMPACTING THE MIXTURE INTO A BODY AT A PRESSURE OF AT LEAST 20 TONS/SQ. IN. TO YIELD A COMPACTED BODY HAVING A DENSITY OF AT LEAST 6 GM./CC; THEN HEATING SAID COMPACTED BODY TO A TEMPERATURE IN THE RANGE 200* C. TO 250* C. IN AN OXIDISING ATMOSPHERE UNTIL THE OXYGEN TO URANIUM RATIO IS AT LEAST 2.3 AND AT LEAST A LARGE PART OF THE BINDING AGENT IS REMOVED; SUBSEQUENTLY HEATING SAID BODY IN AN INERT ATMOSPHERE TO A TEMPERATURE OF 1300* C. TO 1500* C. AND THEREAFTER HEATING THE BODY IN A REDUCING ATMOSPHERE AT A TEMPERATURE OF AT LEAST 1000* C., THEREBY PRODUCING A DENSE STOICHIOMETRIC BODY.
References Cited (Backward Citations)
GB801381A
Cited
US3094377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |