Patent US5340687A successfully refreshed from Google Patents.
Patent US3006859A successfully refreshed from Google Patents.
US3006859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing of radioactive waste
Assignee: Individual
•
Filing: 1960-08-23
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Granted: 1961-10-31
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Expires: 1980-08-23
Abstract
No abstract record available.
Inventors
- 👤 Rudolph T Allemann
- 👤 Jr Benjamin M Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:12
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/04; G21F9/06; G21F9/14; Y; Y10; Y10S; Y10S159/00; Y10S159/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A PROCESS OF CONCENTRATING A RADIOACTIVE FISSIONPRODUCT-AND SALT-CONTAINING WASTE SOLUTION DERIVED FROM THE CHEMICAL PROCESSING OF NEUTRON-IRRADIATED URANIUM FUEL ELEMENTS PRIOR TO DISPOSAL, COMPRISING ADDING SUGAR TO SAID SOLUTION, SPRAYING SAID SOLUTION INTO A HEATED SPACE WHEREBY WATER EVAPORATES AND A POWDER IS FORMED, HEATING SAID POWDER TO AT LEAST 220*C. IN THE PRESENCE OF OXYGEN WHEREBY IGNITION TAKES PLACE, THE SUGAR IS DECOMPOSED TO CARBON AND THE SALTS ARE DECOMPOSED BY SAID CARBON, HEATING THE POWDER TO A TEMPERATURE OF BETWEEN 800 AND 900*C. WHEREBY IT MELTS, AND COOLING THE MELT WHEREBY A COMPACT MASS OF HIGH DENSITY IS OBTAINED.
Claim 2
Dependent Claim
101 words
A PROCESS OF CONCENTRATING A RADIOACTIVE FISSIONPRODUCT-AND SALT-CONTAINING WASTE SOLUTION DERIVED FROM THE CHEMICAL PROCESSING OF NEUTRON-IRRADIATED URANIUM FUEL ELEMENTS PRIOR TO DISPOSAL, COMPRISING ADDING SUGAR TO SAID SOLUTION, SPRAYING SAID SOLUTION INTO A HEATED SPACE WHEREBY WATER EVAPORATES AND A POWDER IS FORMED, HEATING SAID POWDER TO AT LEAST 220*C. IN THE PRESENCE OF OXYGEN WHEREBY IGNITION TAKES PLACE, THE SUGAR IS DECOMPOSED TO CARBON AND THE SALTS ARE DECOMPOSED BY SAID CARBON, HEATING THE POWDER TO A TEMPERATURE OF BETWEEN 800 AND 900*C. WHEREBY IT MELTS, AND COOLING THE MELT WHEREBY A COMPACT MASS OF HIGH DENSITY IS OBTAINED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |