Patent US2807581A successfully refreshed from Google Patents.
US2807581A
Expired / Lapsed
US
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Neutronic reactor
Assignee: Individual
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Filing: 1945-10-11
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Granted: 1957-09-24
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Expires: 1965-10-11
Abstract
No abstract record available.
Inventors
- 👤 Fermi Enrico
- 👤 Szilard Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:15
CPC Classifications
G; G21; G21C; G21C21/00; G21C21/02; G21C21/10; G21C1/00; G21C1/04; G21C1/06; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S376/00; Y10S376/908
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A NEUTRONIC REACTOR CONSISTING ESSENTIALLY OF PLATES OF NATURAL URANIUM SEPARATING A MODERATOR MASS INTO DISTINCT AND INDIVIDUAL LAYERS, THE WIDTH AND THE LENGTH OF EACH PLATE BEING SUBSTANTIALLY EQUAL TO THE WIDTH AND LENGTH OF ADJOINING MODERATOR LAYERS, AND EACH PLATE HAVING AN UNINTERRUPTED SURFACE AREA SUBSTANTIALLY EQUAL TO THE CROSS-SECTIONAL AREA OF THE ACTIVE PORTION OF THE REACTOR, SAID MODERATOR MASS SELECTED FROM THE GROUP CONSISTING OF HEAVY WATER, BERYLLIUM AND GRAPHITE, THE THICKNESS OF THE URANIUM PLATE AND THE VOLUME RATIO OF MODERATOR TO URANIUM BEING WITHIN THE AREA ENCOMPASSED BY THE BRANCHES OF THE K=1.00 CURVES OF FIGURES 6-8, AND THE PURITY OF THE MODERATOR AND THE URANIUM AND THE TOTAL MASS THEREOF BEING SUFFICIENT TO SUBSTAIN A CHAIN REACTION.
Claim 2
Dependent Claim
124 words
A NEUTRONIC REACTOR CONSISTING ESSENTIALLY OF PLATES OF NATURAL URANIUM SEPARATING A MODERATOR MASS INTO DISTINCT AND INDIVIDUAL LAYERS, THE WIDTH AND THE LENGTH OF EACH PLATE BEING SUBSTANTIALLY EQUAL TO THE WIDTH AND LENGTH OF ADJOINING MODERATOR LAYERS, AND EACH PLATE HAVING AN UNINTERRUPTED SURFACE AREA SUBSTANTIALLY EQUAL TO THE CROSS-SECTIONAL AREA OF THE ACTIVE PORTION OF THE REACTOR, SAID MODERATOR MASS SELECTED FROM THE GROUP CONSISTING OF HEAVY WATER, BERYLLIUM AND GRAPHITE, THE THICKNESS OF THE URANIUM PLATE AND THE VOLUME RATIO OF MODERATOR TO URANIUM BEING WITHIN THE AREA ENCOMPASSED BY THE BRANCHES OF THE K=1.00 CURVES OF FIGURES 6-8, AND THE PURITY OF THE MODERATOR AND THE URANIUM AND THE TOTAL MASS THEREOF BEING SUFFICIENT TO SUBSTAIN A CHAIN REACTION.
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) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |