Patent US2743225A successfully refreshed from Google Patents.
US2743225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactor
Assignee: Individual
•
Filing: 1946-08-27
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Granted: 1956-04-24
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Expires: 1966-08-27
Abstract
No abstract record available.
Inventors
- 👤 Leo A Ohlinger
- 👤 Eugene P Wigner
- 👤 Gale J Young
- 👤 Alvin M Weinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:28
CPC Classifications
G; G21; G21C; G21C1/00; G21C1/04; G21C1/24; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN A NEUTRONIC REACTION SYSTEM, A PRESSURE TANK, A CONTAINER THEREIN HAVING ON OPENING IN A WALL AND DIVIDING THE INTERIOR OF SAID PRESSURE TANK INTO AN INNER SPACE WITHIN SAID CONTAINER AND AN OUTER CLOSED SPACE BETWEEN SAID CONTAINER AND SAID PRESSURE TANK, THE WALLS OF SAID CONTAINER DIVIDING THE TANK INTO TWO SPACES BEING RELATIVELY THIN AND COMPOSED OF A MATERIAL HAVING THE CHARACTERISTICS OF SMALL NEUTRONS CAPTURE CROSS SECTION, URANIUM AND HEAVY WATER WITHIN THE INNER SPACE IN SAID CONTAINER IN AN AMOUNT AND DISPOSITION TO PRODUCE A SELF-SUSTAINING CHAIN REACTION, GRAPHITE IN THE OUTER CLOSE SPACE AROUND SAID CONTAINER, A SOURCE OF HELIUM, MEANS FOR INTRODUCING SAID HELIUM UNDER PRESSURE TO THE OUTER CLOSED SPACE, AND MEANS FOR WITHDRAWING HELIUM UNDER PRESSURE FROM THE INNER SPACE, SAID INNER SPACE BEING FREE OF ANY CONNECTION WITH SAID HELIUM-INTRODUCING MEANS EXCEPT BY WAY OF THE OUTER CLOSED SPACE.
Claim 2
Dependent Claim
150 words
IN A NEUTRONIC REACTION SYSTEM, A PRESSURE TANK, A CONTAINER THEREIN HAVING ON OPENING IN A WALL AND DIVIDING THE INTERIOR OF SAID PRESSURE TANK INTO AN INNER SPACE WITHIN SAID CONTAINER AND AN OUTER CLOSED SPACE BETWEEN SAID CONTAINER AND SAID PRESSURE TANK, THE WALLS OF SAID CONTAINER DIVIDING THE TANK INTO TWO SPACES BEING RELATIVELY THIN AND COMPOSED OF A MATERIAL HAVING THE CHARACTERISTICS OF SMALL NEUTRONS CAPTURE CROSS SECTION, URANIUM AND HEAVY WATER WITHIN THE INNER SPACE IN SAID CONTAINER IN AN AMOUNT AND DISPOSITION TO PRODUCE A SELF-SUSTAINING CHAIN REACTION, GRAPHITE IN THE OUTER CLOSE SPACE AROUND SAID CONTAINER, A SOURCE OF HELIUM, MEANS FOR INTRODUCING SAID HELIUM UNDER PRESSURE TO THE OUTER CLOSED SPACE, AND MEANS FOR WITHDRAWING HELIUM UNDER PRESSURE FROM THE INNER SPACE, SAID INNER SPACE BEING FREE OF ANY CONNECTION WITH SAID HELIUM-INTRODUCING MEANS EXCEPT BY WAY OF THE OUTER CLOSED SPACE.
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) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |