Patent US3000802A successfully refreshed from Google Patents.
US3000802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of nuclear reactions
Assignee: Huntington Alloys Corp
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Filing: 1958-12-16
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Granted: 1961-09-19
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Expires: 1978-12-16
Abstract
No abstract record available.
Inventors
- 👤 David K Worn
- 👤 Ralph E Buttress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:13
CPC Classifications
G; G21; G21C; G21C21/00; G21C21/18; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12069; Y10T428/12104; Y10T428/12111; Y10T428/12125; Y10T428/12139
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
THE METHOD FOR PRODUCING A COMPOSITE NEUTRON-ABSORBING DEVICE IN TUBULAR FORM WHICH COMPRISES ASSEMBLING IN SUBSTANTIALLY CONCENTRIC RELATION TUBES MADE OF CORROSION RESISTANT METAL SUCH THAT AN ANNULAR SPACE IS PROVIDED THEREBETWEEN, PACKING SAID ANNULAR SPACE WITH A MIXTURE OF POWDERED NEUTRON-ABSORBING MATERIAL HAVING A PARTICLE SIZE BETWEEN ABOUT 60 AND ABOUT 200 MESH AND A METAL POWDER FROM THE GROUP CONSISTING OF NICKEL, COPPER AND IRON, SUBJECTING THE RESULTING ASSEMBLY TO AT LEAST ONE COLD WORKING OPERATION AND AT LEAST ONE ANNEALING OPERATION SUBSEQUENT TO SAID COLD WORKING OPERATION TO COMPACT AND BOND TOGETHER SAID POWDER MIXTURE, WHEREBY A TUBULAR NEUTRON-ABSORBING DEVICE IS OBTAINED HAVING A NEUTRON-ABSORBING PHASE SUBSTANTIALLY UNIFORMLY DISPERSED THROUGH A METAL MATRIX WHICH IS CLADDED ON BOTH THE INTERIOR AND EXTERIOR FACES WITH CORROSION RESISTANT METAL AND WHICH IS PRODUCED TO CLOSE DIMENSIONAL TOLERANCE.
Claim 2
Independent Claim
138 words
THE METHOD FOR PRODUCING A COMPOSITE NEUTRON-ABSORBING DEVICE IN TUBULAR FORM WHICH COMPRISES ASSEMBLING IN SUBSTANTIALLY CONCENTRIC RELATION TUBES MADE OF CORROSION RESISTANT METAL SUCH THAT AN ANNULAR SPACE IS PROVIDED THEREBETWEEN, PACKING SAID ANNULAR SPACE WITH A MIXTURE OF POWDERED NEUTRON-ABSORBING MATERIAL HAVING A PARTICLE SIZE BETWEEN ABOUT 60 AND ABOUT 200 MESH AND A METAL POWDER FROM THE GROUP CONSISTING OF NICKEL, COPPER AND IRON, SUBJECTING THE RESULTING ASSEMBLY TO AT LEAST ONE COLD WORKING OPERATION AND AT LEAST ONE ANNEALING OPERATION SUBSEQUENT TO SAID COLD WORKING OPERATION TO COMPACT AND BOND TOGETHER SAID POWDER MIXTURE, WHEREBY A TUBULAR NEUTRON-ABSORBING DEVICE IS OBTAINED HAVING A NEUTRON-ABSORBING PHASE SUBSTANTIALLY UNIFORMLY DISPERSED THROUGH A METAL MATRIX WHICH IS CLADDED ON BOTH THE INTERIOR AND EXTERIOR FACES WITH CORROSION RESISTANT METAL AND WHICH IS PRODUCED TO CLOSE DIMENSIONAL TOLERANCE.
References Cited (Backward Citations)
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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) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |