US2856336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neutronic reactor control
Assignee: Individual
•
Filing: 1945-06-04
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Granted: 1958-10-14
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Expires: 1965-06-04
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Metcalf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:13
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/06; G21C7/08; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
IN A NEUTRONIC REACTOR HAVING AN ACTIVE PORTION COMPRISING A THERMAL NEUTROM FISSIONABLE MATERIAL AND HAVING A NEUTRON REPRODUCTION RATION AT LEAST EQUAL TO UNITY, THE IMPROVED CONTROL APPARATUS COMPRISING A PLURALITY OF ABSORBER MEMBERS EXTENDING INTO THE ACTIVE PORTION AT DIFFERENT DISTANCES FROM THE CENTER THEREOF, AND MOTIVE MEANS COUPLED IN COMMON TO SAID ABSORBER MEMBERS IN A MANNER TO SIMULTANEOUSLY WITHDRAW AT LEAST ONE OF SAID ABSORBER MEMBERS AND TO INSERT AT LEAST ONE OTHER OF SAID ABSORBER MEMBERS TO EFFECT FINE CONTROL OF THE NEUTRON REPRODUCTION RATIO.
Claim 2
Dependent Claim
90 words
IN A NEUTRONIC REACTOR HAVING AN ACTIVE PORTION COMPRISING A THERMAL NEUTROM FISSIONABLE MATERIAL AND HAVING A NEUTRON REPRODUCTION RATION AT LEAST EQUAL TO UNITY, THE IMPROVED CONTROL APPARATUS COMPRISING A PLURALITY OF ABSORBER MEMBERS EXTENDING INTO THE ACTIVE PORTION AT DIFFERENT DISTANCES FROM THE CENTER THEREOF, AND MOTIVE MEANS COUPLED IN COMMON TO SAID ABSORBER MEMBERS IN A MANNER TO SIMULTANEOUSLY WITHDRAW AT LEAST ONE OF SAID ABSORBER MEMBERS AND TO INSERT AT LEAST ONE OTHER OF SAID ABSORBER MEMBERS TO EFFECT FINE CONTROL OF THE NEUTRON REPRODUCTION RATIO.
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) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |