US3246154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control systems for nuclear reactors
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1962-01-11
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Granted: 1966-04-12
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Expires: 1982-01-11
Abstract
No abstract record available.
Inventors
- 👤 Harrison Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:32
CPC Classifications
G; G01; G01T; G01T3/00; G21; G21C; G21C7/00; G21C7/36; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A CONTROL SYSTEM INCLUDING A FLUX MEASURING IONISATION CHAMBER, A BASIC A.C. GENERATOR CONNECTED TO PROVIDE POLARISING POTENTIALS FOR THE CHAMBER, AN INTEGRATOR CONNECTED TO RECEIVE THE OUTPUT OF THE CHAMBER WHICH INCLUDES A COMPONENT OF CURRENT IN-PULSE WITH THE POLARISING POTENTIAL AND A COMPONENT IN QUADRATURE THEREWITH, MEANS FOR FEEDING TO THE INTEGRATOR COMPARABLE COMPONENTS OF CURRENT ADJUSTED IN-PHASE AND AMPLITUDE SUCH THAT THE INTEGRATED IN-PHASE COMPONENTS CANCEL AT A VALUE OF THE IN-PHASE COMPONENT CORRESPONDING TO A GIVEN FLUX LEVEL, THE INTEGRATED QUADRATURE COMPONENTS YIELDING A RESIDUAL SIGNAL AT ALL FLUX LEVELS, SAMPLING MEANS FOR SAMPLING THE INTEGRATOR OUTPUT AT GIVEN INTERVALS, OF ELECTRICAL ANGLE TO PRODUCE SAMPLE PULSES PROPORTIONAL TO THE CURRENT/TIME INTEGRALS OF THE COMPONENTS, AND MEANS FOR APPLYING SAID PULSES TO A CONTROL ELEMENT RESPONSIVE TO THE SAMPLE PULSES DUE TO THE IN-PHASE COMPONENT OF CURRENT.
Claim 2
Dependent Claim
141 words
A CONTROL SYSTEM INCLUDING A FLUX MEASURING IONISATION CHAMBER, A BASIC A.C. GENERATOR CONNECTED TO PROVIDE POLARISING POTENTIALS FOR THE CHAMBER, AN INTEGRATOR CONNECTED TO RECEIVE THE OUTPUT OF THE CHAMBER WHICH INCLUDES A COMPONENT OF CURRENT IN-PULSE WITH THE POLARISING POTENTIAL AND A COMPONENT IN QUADRATURE THEREWITH, MEANS FOR FEEDING TO THE INTEGRATOR COMPARABLE COMPONENTS OF CURRENT ADJUSTED IN-PHASE AND AMPLITUDE SUCH THAT THE INTEGRATED IN-PHASE COMPONENTS CANCEL AT A VALUE OF THE IN-PHASE COMPONENT CORRESPONDING TO A GIVEN FLUX LEVEL, THE INTEGRATED QUADRATURE COMPONENTS YIELDING A RESIDUAL SIGNAL AT ALL FLUX LEVELS, SAMPLING MEANS FOR SAMPLING THE INTEGRATOR OUTPUT AT GIVEN INTERVALS, OF ELECTRICAL ANGLE TO PRODUCE SAMPLE PULSES PROPORTIONAL TO THE CURRENT/TIME INTEGRALS OF THE COMPONENTS, AND MEANS FOR APPLYING SAID PULSES TO A CONTROL ELEMENT RESPONSIVE TO THE SAMPLE PULSES DUE TO THE IN-PHASE COMPONENT OF CURRENT.
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |