Patent US3054738A successfully refreshed from Google Patents.
US3054738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of nuclear fission
Assignee: STICHTING REACTOR CENTRUM NEDERLANDS
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Filing: 1956-12-14
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Granted: 1962-09-18
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Expires: 1976-12-14
Abstract
No abstract record available.
Inventors
- 👤 Marie E A Hermans
- 👤 Plas Theo Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:32
CPC Classifications
G; G21; G21C; G21C1/00; G21C1/04; G21C1/06; G21C1/22; G21C19/00; G21C19/42; G21C19/50; G21C3/00; G21C3/42; G21C3/44; G21C3/46; G21C3/50; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
IN A PROCESS FOR THE ESTABLISHMENT OF A SELF-SUSTAINING NEUTRON CHAIN NUCLEAR FISSION REACTION IN A SYSTEM COMPRISING A NUCLEAR FUEL SUSPENSION OF SOLID FISSILE MATERIAL PRTICLES IN WATER, WHICH SUSPENSION CONTINUOUSLY CIRCULATES THEOUGH A NUCLEAR REACTOR WHEREIN CRITICAL CONDITIONS PREVAIL AND THROUGH AN EXTERNAL CIRCULATION SYSTEM INCLUDING A HEAT EXCHANGER, IN WHICH LATTER SYSTEM NONCRITICAL CONDITIONS PREVAIL, WHEREAS DURING THE OPERATION OF THE NUCLEAR REACTOR FISSION PROUDICTS ARE REGULARLY REMOVED FROM TH CIRCULATING NUCLEAR FUEL SUSPENSION, THE IMPROVEMENT COMPRISING ADDING TO THE CIRCULATING SUSPENSION SUCH AN AMOUNT OF A GRANULAR SOLID MATERIAL AND HAVING A SEPCIFIC GRAVITY SUFFICIENTLY LOWER THAN THAT OF THE FISSILE MATERIAL TO PERMIT SEPARATION ACCORDING TO SPECIFIC GRAVITY AND ADSROBING FISSION PRODUCTS THAT ARE DETAINED IN THE WATER THAT THE FISSION PRODUCTS ADSORPTION CAPACITY OF THE SAID MATERIAL PER UNIT VOLUME OF SUSPENSION IS SIGNIFICANTLY GREATERE THAN THE FISSION PRODUCTS ADSORPITON CAPACITY OF THE FISSILE MATERIAL PER UNIT VOLUME OF SUSPENSION, REMOVING FISSION PRODUCTS BY SEPARATING ADSROBING MATERIAL CHARGED WITH FISSION PRODUCTS FROM THE CIRCULATING SUSPENSION, SAID SEPARATION BEING ACCOMPLISHED BY MEANS OF THE DIFFERENCE IN SPECIFIC GRAVITY OF SAID GRANULAR SOLID MATERIAL AND SAID FISSILE MATERIAL, AND ADDING FRESH ADSORBING MATERIAL TO THE CIRCULATING SUSPENSION TO REPLACE THE SEPARATED ADSORBING MATERIAL.
Claim 2
Dependent Claim
207 words
IN A PROCESS FOR THE ESTABLISHMENT OF A SELF-SUSTAINING NEUTRON CHAIN NUCLEAR FISSION REACTION IN A SYSTEM COMPRISING A NUCLEAR FUEL SUSPENSION OF SOLID FISSILE MATERIAL PRTICLES IN WATER, WHICH SUSPENSION CONTINUOUSLY CIRCULATES THEOUGH A NUCLEAR REACTOR WHEREIN CRITICAL CONDITIONS PREVAIL AND THROUGH AN EXTERNAL CIRCULATION SYSTEM INCLUDING A HEAT EXCHANGER, IN WHICH LATTER SYSTEM NONCRITICAL CONDITIONS PREVAIL, WHEREAS DURING THE OPERATION OF THE NUCLEAR REACTOR FISSION PROUDICTS ARE REGULARLY REMOVED FROM TH CIRCULATING NUCLEAR FUEL SUSPENSION, THE IMPROVEMENT COMPRISING ADDING TO THE CIRCULATING SUSPENSION SUCH AN AMOUNT OF A GRANULAR SOLID MATERIAL AND HAVING A SEPCIFIC GRAVITY SUFFICIENTLY LOWER THAN THAT OF THE FISSILE MATERIAL TO PERMIT SEPARATION ACCORDING TO SPECIFIC GRAVITY AND ADSROBING FISSION PRODUCTS THAT ARE DETAINED IN THE WATER THAT THE FISSION PRODUCTS ADSORPTION CAPACITY OF THE SAID MATERIAL PER UNIT VOLUME OF SUSPENSION IS SIGNIFICANTLY GREATERE THAN THE FISSION PRODUCTS ADSORPITON CAPACITY OF THE FISSILE MATERIAL PER UNIT VOLUME OF SUSPENSION, REMOVING FISSION PRODUCTS BY SEPARATING ADSROBING MATERIAL CHARGED WITH FISSION PRODUCTS FROM THE CIRCULATING SUSPENSION, SAID SEPARATION BEING ACCOMPLISHED BY MEANS OF THE DIFFERENCE IN SPECIFIC GRAVITY OF SAID GRANULAR SOLID MATERIAL AND SAID FISSILE MATERIAL, AND ADDING FRESH ADSORBING MATERIAL TO THE CIRCULATING SUSPENSION TO REPLACE THE SEPARATED ADSORBING MATERIAL.
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) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |