US3222254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling the reactivity of a nuclear reactor
Assignee: Anglo Belge Vulcain SA Soc
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Filing: 1963-02-05
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Granted: 1965-12-07
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Expires: 1983-02-05
Abstract
No abstract record available.
Inventors
- 👤 Maldague Pierre Edmond J Marie
- 👤 Waegh Francois Albert De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:10
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/04; G; G21; G21C; G21C7/00; G21C7/06; G21C7/22; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD OF CONTROLLING THE REACTIVITY OF THE NUCLEAR REACTOR HAVING A CORE THROUGH WHICH A WATER COOLANTMODERATOR FLOWS, COMPRISING THE STEPS OF: VARYING LIGHT TO HEAVY WATER RATIO TO CONTROL REACTIVITY VARIATIONS, MODIFYING DURING NORMAL POWER OPERATIONS OF SAID REACTOR THE CONCENTRATION OF A POISON IN RESPONSE TO THE WATER TEMPERATURE TO MAINTAIN A COMBINED EFFECT UPON REACTIVITY OF XENON 135 AND SAID POISON SUBSTANTIALLY EQUAL TO THAT OF XENON 135 EQUILIBRIUM POISONING AT REACTOR FULL POWER,
Claim 2
Independent Claim
78 words
A METHOD OF CONTROLLING THE REACTIVITY OF THE NUCLEAR REACTOR HAVING A CORE THROUGH WHICH A WATER COOLANTMODERATOR FLOWS, COMPRISING THE STEPS OF: VARYING LIGHT TO HEAVY WATER RATIO TO CONTROL REACTIVITY VARIATIONS, MODIFYING DURING NORMAL POWER OPERATIONS OF SAID REACTOR THE CONCENTRATION OF A POISON IN RESPONSE TO THE WATER TEMPERATURE TO MAINTAIN A COMBINED EFFECT UPON REACTIVITY OF XENON 135 AND SAID POISON SUBSTANTIALLY EQUAL TO THAT OF XENON 135 EQUILIBRIUM POISONING AT REACTOR FULL POWER,
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |