Patent US2979450A successfully refreshed from Google Patents.
US2979450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear reactor control device
Assignee: Fluor Corp
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Filing: 1957-02-25
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Granted: 1961-04-11
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Expires: 1977-02-25
Abstract
No abstract record available.
Inventors
- 👤 Mark R Dusbabek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:38
CPC Classifications
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
160 words
THE COMBINATION, COMPRISING A NUCLEAR CHAIN REACTOR CORE WHEREIN NEUTRONS ARE PRODUCED, FLUID CORE COOLANT WITHIN THE CORE, SEALED CONTAINER MEANS ENTIRELY WITHIN THE CORE, AND A NEUTRON ABSORBER WITHIN SAID CONTAINER MEANS INCLUDING A BODY OF UNVAPORIZED ABSORBER CONCENTRATE AND ABSORBER VAPOR ABOVE SAID BODY IN EQUILIBRIUM CONTACT WITH THE BODY SURFACE, A FIRST PORTION OF THE CONTAINER CONTAINING THE UNVAPORIZED CONCENTRATE HAVING A VOLUME SUBSTANTIALLY LESS THAN A SECOND PORTION OF THE CONTAINER CONTAINING THE VAPOR, SAID FIRST PORTION OF THE CONTAINER MEANS BEING NEAR THE CORE BOUNDARY, SAID SECOND PORTION OF THE CONTAINER MEANS HAVING LOW NEUTRON ABSORBING CAPACITY IN RELATION TO SAID ABSORBER, SAID BODY OF ABSORBER CONCENTRATE BEING IN HEAT TRANSFER RELATIONSHIP WITH THE CORE COOLANT TO CONTROL THE ABSORBER VAPOR DENSITY IN RESPONSE TO CHANGES IN CORE POWER LEVEL AND SAID VAPOR BEING ADAPTED TO ABSORB NEUTRONS PRODUCED IN THE CORE, AND SAID BODY OF ABSORBER CONCENTRATE AND VAPOR COMPRISING THE SAME CHEMICAL SUBSTANCE.
Claim 2
Dependent Claim
160 words
THE COMBINATION, COMPRISING A NUCLEAR CHAIN REACTOR CORE WHEREIN NEUTRONS ARE PRODUCED, FLUID CORE COOLANT WITHIN THE CORE, SEALED CONTAINER MEANS ENTIRELY WITHIN THE CORE, AND A NEUTRON ABSORBER WITHIN SAID CONTAINER MEANS INCLUDING A BODY OF UNVAPORIZED ABSORBER CONCENTRATE AND ABSORBER VAPOR ABOVE SAID BODY IN EQUILIBRIUM CONTACT WITH THE BODY SURFACE, A FIRST PORTION OF THE CONTAINER CONTAINING THE UNVAPORIZED CONCENTRATE HAVING A VOLUME SUBSTANTIALLY LESS THAN A SECOND PORTION OF THE CONTAINER CONTAINING THE VAPOR, SAID FIRST PORTION OF THE CONTAINER MEANS BEING NEAR THE CORE BOUNDARY, SAID SECOND PORTION OF THE CONTAINER MEANS HAVING LOW NEUTRON ABSORBING CAPACITY IN RELATION TO SAID ABSORBER, SAID BODY OF ABSORBER CONCENTRATE BEING IN HEAT TRANSFER RELATIONSHIP WITH THE CORE COOLANT TO CONTROL THE ABSORBER VAPOR DENSITY IN RESPONSE TO CHANGES IN CORE POWER LEVEL AND SAID VAPOR BEING ADAPTED TO ABSORB NEUTRONS PRODUCED IN THE CORE, AND SAID BODY OF ABSORBER CONCENTRATE AND VAPOR COMPRISING THE SAME CHEMICAL SUBSTANCE.
References Cited (Backward Citations)
US2735811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |