Patent US3140235A successfully refreshed from Google Patents.
US3140235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Downflow packed bed nuclear fission reactor
Assignee: Individual
•
Filing: 1962-11-23
•
Granted: 1964-07-07
•
Expires: 1982-11-23
Abstract
No abstract record available.
Inventors
- 👤 Loranus P Hatch
- 👤 Thomas V Sheehan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:02
CPC Classifications
G; G21; G21C; G21C1/00; G21C1/04; G21C1/06; G21C1/07; G21C15/00; G21C15/02; G21C15/04; G21C19/00; G21C19/20; G21C19/202; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A DOWNFLOW PACKED PARTICULATE BED NUCLEAR FISSION REACTOR COMPRISING A CORE VESSEL HAVING THEREIN A BED OF PARTICLES CONTAINING FISSIONABLE MATERIAL, AN OUTER VESSEL FOR ENCLOSING SAID CORE VESSEL FORMING AN ANNULAR BREEDING CHAMBER HAVING THEREIN A BED OF PARTICLES CONTAINING FERTILE MATERIAL, MEANS FOR DIRECTING COOLANT FLOW THROUGH SAID BEDS OF PARTICLES IN DIRECTIONS TO MAINTAIN SAID BEDS EACH IN A SETTLED STATE DURING NORMAL OPERATION OF SAID REACTOR, AND MEANS DURING SHUT-DOWN OF SAID REACTOR FOR FLUIDIZING SAID BEDS TO PERMIT REPLACEMENT AND REDISTRIBUTION OF SAID PARTICLES, SAID DIRECTING MEANS PASSING THE COOLANT INTO SAID CORE VESSEL FOR RADIAL FLOW THROUGH THE LATTER, AND SAID CORE VESSEL BEING PROVIDED WITH OPENINGS TO PERMIT THE COOLANT TO FLOW INTO SAID BED OF FERTILE PARTICLES.
Claim 2
Dependent Claim
125 words
A DOWNFLOW PACKED PARTICULATE BED NUCLEAR FISSION REACTOR COMPRISING A CORE VESSEL HAVING THEREIN A BED OF PARTICLES CONTAINING FISSIONABLE MATERIAL, AN OUTER VESSEL FOR ENCLOSING SAID CORE VESSEL FORMING AN ANNULAR BREEDING CHAMBER HAVING THEREIN A BED OF PARTICLES CONTAINING FERTILE MATERIAL, MEANS FOR DIRECTING COOLANT FLOW THROUGH SAID BEDS OF PARTICLES IN DIRECTIONS TO MAINTAIN SAID BEDS EACH IN A SETTLED STATE DURING NORMAL OPERATION OF SAID REACTOR, AND MEANS DURING SHUT-DOWN OF SAID REACTOR FOR FLUIDIZING SAID BEDS TO PERMIT REPLACEMENT AND REDISTRIBUTION OF SAID PARTICLES, SAID DIRECTING MEANS PASSING THE COOLANT INTO SAID CORE VESSEL FOR RADIAL FLOW THROUGH THE LATTER, AND SAID CORE VESSEL BEING PROVIDED WITH OPENINGS TO PERMIT THE COOLANT TO FLOW INTO SAID BED OF FERTILE PARTICLES.
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |