US2928779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neutronic reactor construction and operation
Assignee: Individual
•
Filing: 1954-08-16
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Granted: 1960-03-15
•
Expires: 1974-08-16
Abstract
No abstract record available.
Inventors
- 👤 Jordan T Weills
- 👤 John M West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:03
CPC Classifications
G; G21; G21D; G21D5/00; G21D5/04; G21D5/08; G21C; G21C15/00; G21C15/02; G21C15/04; G21C15/06; G21C7/00; G21C7/02; G21C7/32; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S376/00; Y10S376/908
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
THE METHOD OF OPERATING A NEUTRONIC REACTOR WITH A NEGATIVE TEMPERATURE COEFFICENT OF REACTIVITY COMPRISING THE STEPS OF SEQUENTIALLY MAINTAINING A NEUTRONIC CHAIN REACTION IN THE REACTOR TO ESTABLISH AN EQUILIBRIUM XENON CONCENTRATION, SHUTTING DOWN THE REACTOR FOR A PERIOD FO TIME LESS THAN 72 HOURS, LOWERING THE TEMPERATURE OF THE REACTOR DURING THE PERIOD OF SHUTDOWN BY AN AMOUNT SUFFCIENT FOR THE NEGATIVE TEMPERATURE COEFFICIENT OF REACTIVITY TO INCREASE THE REACTIVITY OF THE REACTOR EQUAL TO THE DECREASE IN REACTIVITY DUE TO THE PEAK XENON CONCENTRATION, GENERATING A NEUTRON FLUX WITHIN THE REACTOR EQUAL TO THE FLUX BEFORE SHUTDOWN, AND INCREASING THE TEMPERATURE OF THE REACTOR OVER A PERIOD OF TIME IN ACCORDANCE WITH THE CURVE SET FORTH IN FIGURE 13
Claim 2
Independent Claim
122 words
THE METHOD OF OPERATING A NEUTRONIC REACTOR WITH A NEGATIVE TEMPERATURE COEFFICENT OF REACTIVITY COMPRISING THE STEPS OF SEQUENTIALLY MAINTAINING A NEUTRONIC CHAIN REACTION IN THE REACTOR TO ESTABLISH AN EQUILIBRIUM XENON CONCENTRATION, SHUTTING DOWN THE REACTOR FOR A PERIOD FO TIME LESS THAN 72 HOURS, LOWERING THE TEMPERATURE OF THE REACTOR DURING THE PERIOD OF SHUTDOWN BY AN AMOUNT SUFFCIENT FOR THE NEGATIVE TEMPERATURE COEFFICIENT OF REACTIVITY TO INCREASE THE REACTIVITY OF THE REACTOR EQUAL TO THE DECREASE IN REACTIVITY DUE TO THE PEAK XENON CONCENTRATION, GENERATING A NEUTRON FLUX WITHIN THE REACTOR EQUAL TO THE FLUX BEFORE SHUTDOWN, AND INCREASING THE TEMPERATURE OF THE REACTOR OVER A PERIOD OF TIME IN ACCORDANCE WITH THE CURVE SET FORTH IN FIGURE 13
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) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |