Patent US3291694A successfully refreshed from Google Patents.
US3291694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neutron amplifier
Assignee: Dow Chemical Co
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Filing: 1957-04-24
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Granted: 1966-12-13
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Expires: 1977-04-24
Abstract
No abstract record available.
Inventors
- 👤 Lyle B Borst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:42
CPC Classifications
G; G21; G21G; G21G4/00; G21G4/02; G21C; G21C1/00; G21C1/30; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A REGENERATIVE SUBCRITICAL NEUTRON AMPLIFIER COMPRISING A PLURALITY OF DIRECTIONALLY POLARIZED CONVERGENT NEUTRON GENERATOR STAGES IN CASCADE, EACH STAGE COMPRISING A REGION OF NEUTRON MODERATOR MATERIAL, A REGION OF THERMAL NEUTRON FISSIONABLE ISOTOPE MATERIAL, HAVING THE CHARACTERISTIC OF EMITTING A SMALL PERCENTEGE OF DELAYED NEUTRON, AND A REGION OF THERMAL NEUTRON BARRIER MATERIAL, THE NEUTRON MODERATOR REGION BEING THE INPUT OF EACH STAGE, AND THE THERMAL BARRIER REGION BEING THE OUTPUT OF EACH STAGE, AN EXTINGUISHABLE EPITHERMAL NEUTRON SOURCE, MEANS FOR PROJECTING NEUTRON FROM THE SOURCE INTO THE INPUT REGION OF THE FIRST STAGE, MEANS FOR PRO-
Claim 2
Dependent Claim
97 words
A REGENERATIVE SUBCRITICAL NEUTRON AMPLIFIER COMPRISING A PLURALITY OF DIRECTIONALLY POLARIZED CONVERGENT NEUTRON GENERATOR STAGES IN CASCADE, EACH STAGE COMPRISING A REGION OF NEUTRON MODERATOR MATERIAL, A REGION OF THERMAL NEUTRON FISSIONABLE ISOTOPE MATERIAL, HAVING THE CHARACTERISTIC OF EMITTING A SMALL PERCENTEGE OF DELAYED NEUTRON, AND A REGION OF THERMAL NEUTRON BARRIER MATERIAL, THE NEUTRON MODERATOR REGION BEING THE INPUT OF EACH STAGE, AND THE THERMAL BARRIER REGION BEING THE OUTPUT OF EACH STAGE, AN EXTINGUISHABLE EPITHERMAL NEUTRON SOURCE, MEANS FOR PROJECTING NEUTRON FROM THE SOURCE INTO THE INPUT REGION OF THE FIRST STAGE, MEANS FOR PRO-
References Cited (Backward Citations)
US2780595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |