Patent US3177069A successfully refreshed from Google Patents.
US3177069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of manufacturing fissionable materials for use in nuclear reactors
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1960-02-24
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Granted: 1965-04-06
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Expires: 1980-02-24
Abstract
No abstract record available.
Inventors
- 👤 Englander Marcel
- 👤 Stohr Jacques Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:08
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/60; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
THE METHOD OF MANUFACTURING A FISSIONABLE MATERIAL WHICH COMPRISES FORMING A COARSE GRAIN ALLOY OF URANIUM, FROM 0.1 TO 2+ PERCENT OF THE WEIGHT OF URANIUM OF ALUMINUM, AND FROM 0.05 TO 1% OF THE WEIGHT OF URANIUM OF ZIRCONIUM, HEATING THE MOLTEN ALLOY THUS OBTAINED UNDER A VACUUM RANGING FROM 10**-4 TO 10**-5 MM. OF MERCURY AT A TEMPERATURE OF ABOUT 1,500*C. ALLOWING SAID ALLOY TO SOLIDIFY, HEATING IT UNDER A VACUUM OF APPROXIMATELY 10**-3 MM. OF MERCURY AT A TEMPERATURE HIGHER THAN 1,000*C. BUT LOWER THAN THE MELTING POINT OF SAID ALLOY, FOR ABOUT 50 HOURS, QUENCHING SUDDENLY SAID ALLOY AND ANNEALING IT AT A TEMPERATURE OF ABOUT 600*C.
Claim 2
Independent Claim
111 words
THE METHOD OF MANUFACTURING A FISSIONABLE MATERIAL WHICH COMPRISES FORMING A COARSE GRAIN ALLOY OF URANIUM, FROM 0.1 TO 2+ PERCENT OF THE WEIGHT OF URANIUM OF ALUMINUM, AND FROM 0.05 TO 1% OF THE WEIGHT OF URANIUM OF ZIRCONIUM, HEATING THE MOLTEN ALLOY THUS OBTAINED UNDER A VACUUM RANGING FROM 10**-4 TO 10**-5 MM. OF MERCURY AT A TEMPERATURE OF ABOUT 1,500*C. ALLOWING SAID ALLOY TO SOLIDIFY, HEATING IT UNDER A VACUUM OF APPROXIMATELY 10**-3 MM. OF MERCURY AT A TEMPERATURE HIGHER THAN 1,000*C. BUT LOWER THAN THE MELTING POINT OF SAID ALLOY, FOR ABOUT 50 HOURS, QUENCHING SUDDENLY SAID ALLOY AND ANNEALING IT AT A TEMPERATURE OF ABOUT 600*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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |