US2996443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fissile material and fuel elements for neutronic reactors
Assignee: Individual
•
Filing: 1958-05-16
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Granted: 1961-08-15
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Expires: 1978-05-16
Abstract
No abstract record available.
Inventors
- 👤 Burton E Schaner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:31
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; G21C3/623; G21C3/02; G21C3/04; G21C3/16; G21C3/18; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/901
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
43 words
FISSILE MATERIAL ADAPTED FOR USE IN A FUEL ELEMENT FOR A NEUTRONIC REACTOR COMPRISING A SINTERED COMPACT CONSISTING OF, BY WEIGHT, FROM 64% TO 75% OF ZIRCONIUM DIOXIDE, FROM 15% TO 19% OF URANIUM DIOXIDE AND FROM 8% TO 17% OF CALCIUM OXIDE.
Claim 2
Dependent Claim
43 words
FISSILE MATERIAL ADAPTED FOR USE IN A FUEL ELEMENT FOR A NEUTRONIC REACTOR COMPRISING A SINTERED COMPACT CONSISTING OF, BY WEIGHT, FROM 64% TO 75% OF ZIRCONIUM DIOXIDE, FROM 15% TO 19% OF URANIUM DIOXIDE AND FROM 8% TO 17% OF CALCIUM OXIDE.
Claim 3
Dependent Claim
108 words
A FUEL ELEMENT SUITABLE FOR USE IN A NEUTRONIC REACTOR COMPRISING A FLAT FILLER PLATE CONSTRUCTED OF A MATERIAL HAVING A LOW THERMAL NEUTRON CROSS SECTION AND HAVING A PLURALITY OF COMPARTMENTS THEREIN SPACED FROM THE OUTER EDGES THEREOF, A FISSILE MATERIAL COMPRISING AT LEAST ONE SINTERED COMPACT CONSISTING OF, BY WEIGHT FROM 64% TO 75% OF ZIRCONIUM DIOXIDE, FROM 15% TO 19% OF URANIUM DIOXIDE AND FROM 8% TO 17% OF CALCIUM OXIDE LOCATED IN EACH OF SAID COMPARTMENTS, A PAIR OF CLADDING PLATES FORMED OF THE SAME MATERIAL AS SAID FILLER PLATE SECURED THERETO AND COOPERATING THEREWITH TO TOTALLY ENCLOSE SAID FISSILE MATERIAL IN SAID COMPARTMENTS.
Claim 4
Dependent Claim
108 words
A FUEL ELEMENT SUITABLE FOR USE IN A NEUTRONIC REACTOR COMPRISING A FLAT FILLER PLATE CONSTRUCTED OF A MATERIAL HAVING A LOW THERMAL NEUTRON CROSS SECTION AND HAVING A PLURALITY OF COMPARTMENTS THEREIN SPACED FROM THE OUTER EDGES THEREOF, A FISSILE MATERIAL COMPRISING AT LEAST ONE SINTERED COMPACT CONSISTING OF, BY WEIGHT FROM 64% TO 75% OF ZIRCONIUM DIOXIDE, FROM 15% TO 19% OF URANIUM DIOXIDE AND FROM 8% TO 17% OF CALCIUM OXIDE LOCATED IN EACH OF SAID COMPARTMENTS, A PAIR OF CLADDING PLATES FORMED OF THE SAME MATERIAL AS SAID FILLER PLATE SECURED THERETO AND COOPERATING THEREWITH TO TOTALLY ENCLOSE SAID FISSILE MATERIAL IN SAID COMPARTMENTS.
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) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |