Patent US3245140A successfully refreshed from Google Patents.
US3245140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabrication of oxide fuel elements by rotary swaging
Assignee: Babcock and Wilcox Co
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Filing: 1958-05-27
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Granted: 1966-04-12
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Expires: 1978-05-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Wallace Markert
- 👤 Paul Charles Thys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:47
CPC Classifications
B; B21; B21K; B21K23/00; G; G21; G21C; G21C21/00; G21C21/02; G21C21/06; G21C7/00; G21C7/06; G21C7/08; G21C7/10; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
THE METHOD OF FABRICATING AN ATOMIC ENERGY REACTOR ELEMENT, INCLUDING A CORE OF A POWDERED MATERIAL AND A METAL CLADDING ENCASING SAID CORE, TO PRESET FINAL VALUES OF LENGTH, CROSS-SECTIONAL AREA, RATIO OF CORE MATERIAL TO CLADDING METAL, AND CRITICAL VALUE OF DENSITY OF THE POWDERED MATERIAL; SAID METHOD COMPRISING THE STEPS OF PROVIDING A RELATIVELY ELONGATED TUBE OF THE CLADDING METAL HAVING A LENGTH LESS THAN SUCH FINAL LENGTH AND AN OUTSIDE DIAMETER IN EXCESS OF THE OUTSIDE DIAMETER CORRESPONDING TO SUCH FINAL CROSS-SECTIONAL AREA TO THUS PROVIDE A PREDETERMINED AMOUNT OF METAL; SEALINGLY CLOSING ONE END OF SAID TUBE; FILLING THE TUBE WITH A PREDETERMINED WEIGHT OF SUCH POWDERED MATERIAL; DURING SUCH FILLING, CONTINUOUSLY VIBRATING THE TUBE TO COMPACT THE POWDERED MATERIAL TO A DENSITY SUCH THAT, WHEN THE FILLED TUBE IS SEALED AT ITS OPEN END AND CONCURRENTLY INCREASED IN LENGTH AND REDUCED IN CROSS-SECTIONAL AREA TO ATTAIN SUCH FINAL VALUES OF LENGTH AND CROSS-SECTIONAL AREA, THE DENSITY OF THE POWDERED MATERIAL WILL AT LEAST EQUAL SUCH CRITICAL FINAL DENSITY.
Claim 2
Independent Claim
173 words
THE METHOD OF FABRICATING AN ATOMIC ENERGY REACTOR ELEMENT, INCLUDING A CORE OF A POWDERED MATERIAL AND A METAL CLADDING ENCASING SAID CORE, TO PRESET FINAL VALUES OF LENGTH, CROSS-SECTIONAL AREA, RATIO OF CORE MATERIAL TO CLADDING METAL, AND CRITICAL VALUE OF DENSITY OF THE POWDERED MATERIAL; SAID METHOD COMPRISING THE STEPS OF PROVIDING A RELATIVELY ELONGATED TUBE OF THE CLADDING METAL HAVING A LENGTH LESS THAN SUCH FINAL LENGTH AND AN OUTSIDE DIAMETER IN EXCESS OF THE OUTSIDE DIAMETER CORRESPONDING TO SUCH FINAL CROSS-SECTIONAL AREA TO THUS PROVIDE A PREDETERMINED AMOUNT OF METAL; SEALINGLY CLOSING ONE END OF SAID TUBE; FILLING THE TUBE WITH A PREDETERMINED WEIGHT OF SUCH POWDERED MATERIAL; DURING SUCH FILLING, CONTINUOUSLY VIBRATING THE TUBE TO COMPACT THE POWDERED MATERIAL TO A DENSITY SUCH THAT, WHEN THE FILLED TUBE IS SEALED AT ITS OPEN END AND CONCURRENTLY INCREASED IN LENGTH AND REDUCED IN CROSS-SECTIONAL AREA TO ATTAIN SUCH FINAL VALUES OF LENGTH AND CROSS-SECTIONAL AREA, THE DENSITY OF THE POWDERED MATERIAL WILL AT LEAST EQUAL SUCH CRITICAL FINAL DENSITY.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |