US2837477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain reacting system
Assignee: Individual
•
Filing: 1945-02-16
•
Granted: 1958-06-03
•
Expires: 1965-02-16
Abstract
No abstract record available.
Inventors
- 👤 Fermi Enrico
- 👤 Miles C Leverett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:05
CPC Classifications
G; G21; G21D; G21D5/00; G21D5/04; G21D5/06; G21C; G21C13/00; G21C13/08; G21C13/087; G21C15/00; G21C15/02; G21C15/04; G21C19/00; G21C19/02; G21C19/04; G21C19/20; G21C5/00; G21C5/02; G21C5/04; G21C5/14; G21C5/16; G21C7/00; G21C7/06; G21C7/08; G21C7/10; G21C7/36; G21C9/00; G21C9/02; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A DEVICE FOR EFFECTING A SELF-SUSTAINING NEUTRON CHAIN REACTION COMPRISING URANIUM BODIES GEOMETRICALLY ARRANGED IN GRAPHITE, A SHELL SURROUNDING THE GRAPHITE, THE SHEEL BEING SPACED SLIGHTLY FROM THE GRAPHITE TO PROVIDE AN EXPANSION SPACE FOR THE GRAPHITE, A QUANTITY OF HELIUM IN THE SHELL AND CIRCULATED UNDER SUPER ATMOSPHERIC PRESSURE THROUGH THE GRAPHITE AND IN HEAT EXCHANGE RELATIONSHIP WITH THE URANIUM, AND A RESILIENT PACKING IN THE SPACE BETWEEN THE GRAPHITE AND THE SHELL TO PREVENT PASSAGE OF HELIUM THERETHROUGH.
Claim 2
Independent Claim
80 words
A DEVICE FOR EFFECTING A SELF-SUSTAINING NEUTRON CHAIN REACTION COMPRISING URANIUM BODIES GEOMETRICALLY ARRANGED IN GRAPHITE, A SHELL SURROUNDING THE GRAPHITE, THE SHEEL BEING SPACED SLIGHTLY FROM THE GRAPHITE TO PROVIDE AN EXPANSION SPACE FOR THE GRAPHITE, A QUANTITY OF HELIUM IN THE SHELL AND CIRCULATED UNDER SUPER ATMOSPHERIC PRESSURE THROUGH THE GRAPHITE AND IN HEAT EXCHANGE RELATIONSHIP WITH THE URANIUM, AND A RESILIENT PACKING IN THE SPACE BETWEEN THE GRAPHITE AND THE SHELL TO PREVENT PASSAGE OF HELIUM THERETHROUGH.
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) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |