US3062728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of processing polyphenyl nuclear reactor coolant
Assignee: North American Aviation Corp
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Filing: 1959-12-21
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Granted: 1962-11-06
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Expires: 1979-12-21
Abstract
No abstract record available.
Inventors
- 👤 Wayne E Duffy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:53
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/28; G21C19/30; C; C07; C07C; C07C15/00; C07C15/12; C07C15/14; C10; C10G; C10G47/00; C10G47/22; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A METHOD OF PROCESSING POLYPHENYL NUCLEAR REACTOR COOLANT, WHICH COMPRISES WITHDRAWING SAID COOLANT FROM A REACTOR, DISTILLING THE WITHDRAWN COOLANT TO SEPARATE UNDAMAGED POLYPHENYL COOLANT FROM DEGRADATION PRODUCTS, RETURNING THE DISTILLATE TO THE REACTOR, REMOVING THE STILL BOTTOM RESIDUE, AT LEAST HALF OF SAID RESIDUE CONSISTING OF POLYPHENYL COMPOUNDS HAVING AT LEAST FOUR PHENYL RINGS, MIXING SAID RESIDUE WITH HYROGEN GAS, HEATING THE RESULTING MIXTURE AT A TEMPERATURE OF ABOUT 250-575*C., AND THEN RETURNING THE RESULTING RECONSTITUTED COOLANT TO THE REACTOR.
Claim 2
Independent Claim
81 words
A METHOD OF PROCESSING POLYPHENYL NUCLEAR REACTOR COOLANT, WHICH COMPRISES WITHDRAWING SAID COOLANT FROM A REACTOR, DISTILLING THE WITHDRAWN COOLANT TO SEPARATE UNDAMAGED POLYPHENYL COOLANT FROM DEGRADATION PRODUCTS, RETURNING THE DISTILLATE TO THE REACTOR, REMOVING THE STILL BOTTOM RESIDUE, AT LEAST HALF OF SAID RESIDUE CONSISTING OF POLYPHENYL COMPOUNDS HAVING AT LEAST FOUR PHENYL RINGS, MIXING SAID RESIDUE WITH HYROGEN GAS, HEATING THE RESULTING MIXTURE AT A TEMPERATURE OF ABOUT 250-575*C., AND THEN RETURNING THE RESULTING RECONSTITUTED COOLANT TO THE REACTOR.
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) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |