Patent US3343924A successfully refreshed from Google Patents.
US3343924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective decladding of nuclear fuel elements
Assignee: Individual
•
Filing: 1966-09-30
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Granted: 1967-09-26
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Expires: 1986-09-30
Abstract
No abstract record available.
Inventors
- 👤 Louis J Anastasia
- 👤 Peter G Alfredson
- 👤 Martin J Steindler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:15
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/34; G21C19/38; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PROCESS FOR DECLADDING AN ASSENBLY OF URAINIUM DIOXIDE OR MIXTURES OF URANIUM AND PLUTONIUM OXIDES CLAD IN STAINLESS STEEL OR AN ALLOY CONSISTING ESSENTIALLY OF ZIRCONIUM AND CONTAINING MINOR AMOUNTS OF NICKEL, OR CHROMIUM, OR TIN, OR IRON, OR COMBINATIONS THEREOF COMPRISING REACTING THE ASSEMBLY WITH A GAS CONTAINING OXYGEN AND HYDROGEN FLUORIDE IN THE RATIO OF AT LEAST TWO PARTS HYDROGEN FLUORIDE TO ONE PART OXYGEN BY VOLUME IN A FLUIDIZED BED OF PARTICLES INERT TO THE ASSEMBLY AND THE REACTING GAS AT A TEMPERATURE BETWEEN ABOUT 400*C. AND ABOUT 650*C. AND SEPARATING THE UNREACTED URANIUM DIOXIDE OR MIXTURE OF URANIUM AND PLUTONIUM OXIDES FROM THE REACTION PRODUCTS.
Claim 2
Dependent Claim
110 words
A PROCESS FOR DECLADDING AN ASSENBLY OF URAINIUM DIOXIDE OR MIXTURES OF URANIUM AND PLUTONIUM OXIDES CLAD IN STAINLESS STEEL OR AN ALLOY CONSISTING ESSENTIALLY OF ZIRCONIUM AND CONTAINING MINOR AMOUNTS OF NICKEL, OR CHROMIUM, OR TIN, OR IRON, OR COMBINATIONS THEREOF COMPRISING REACTING THE ASSEMBLY WITH A GAS CONTAINING OXYGEN AND HYDROGEN FLUORIDE IN THE RATIO OF AT LEAST TWO PARTS HYDROGEN FLUORIDE TO ONE PART OXYGEN BY VOLUME IN A FLUIDIZED BED OF PARTICLES INERT TO THE ASSEMBLY AND THE REACTING GAS AT A TEMPERATURE BETWEEN ABOUT 400*C. AND ABOUT 650*C. AND SEPARATING THE UNREACTED URANIUM DIOXIDE OR MIXTURE OF URANIUM AND PLUTONIUM OXIDES FROM THE REACTION PRODUCTS.
References Cited (Backward Citations)
US3303004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |