US3230370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for sensing the half life of radio-active materials
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1963-03-20
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Granted: 1966-01-18
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Expires: 1983-03-20
Abstract
No abstract record available.
Inventors
- 👤 Deans William Fraser Mackie
- 👤 Harrington Eustace Lion Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:27
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
AN APPARATUS FOR INSERTION IN A FLOW CHANNEL TO SENSE THE PRESENCE OF PRODUCTS EMITTING BETA RADIATION IN A PREDETERMINED ENERGY BAND, AND COMPRISING A SAMPLE CHAMBER, MEANS FOR INTRODUCING A SAMPLE INTO THE CHAMBER AND ISOLATING THE SAMPLE THEREIN, MEANS PERMITTING THE FLOW OF FLUID PAST THE CHAMBER WHEN THE SAMPLE IS ISOLATED IN THE CHAMBER, AND MEANS RESPONSIVE TO AND INDICATIVE OF THE HALF LIFE OF THE SAMPLE, SAID RESPONSIVE MEANS COMPRISING A RADIATION MEASURING DEVICE FOR PROVIDING AN ELECTRICAL OUTPUT REPRESENTATIVE BY ITS MAGNITUDE OF THE RADIOACTIVITY, WITHIN THE PREDETERMINED ENERGY BAND, OF THE SAMPLE, AN ELECTRICAL A TIMING MEANS RESPONSIVE TO ISOLATION OF A SAMPLE TO CAUSE THE STORAGE IN THE STORAGE MEANS OF AN ELECTRICAL VALUE WHICH DEPENDENT ON THE INSTANTANEOUS OUTPUT OF THE RADIATION MEASURING DEVICE, SAID STORAGE OCCURRING AT THE END OF A PREDETERMINED DELAY AFTER THE ISOLATION OF THE SAMPLE, COMPARISON MEANS FOR COMPARING SUBSEQUENTLY THE STORED VALUE WITH THE OUTPUT OF THE MEASURING DEVICE, AND MEANS ACTUATED BY THE COMPARISON MEANS FOR PROVIDING A SIGNAL INDICATIVE OF THE RELATIONSHIP BETWEEN THE STORED VALUE AND THE OUTPUT BY THE DEVICE AT THE END OF A SECOND PREDETERMINED DELAY SET BY THE TIMING MEANS.
Claim 2
Independent Claim
201 words
AN APPARATUS FOR INSERTION IN A FLOW CHANNEL TO SENSE THE PRESENCE OF PRODUCTS EMITTING BETA RADIATION IN A PREDETERMINED ENERGY BAND, AND COMPRISING A SAMPLE CHAMBER, MEANS FOR INTRODUCING A SAMPLE INTO THE CHAMBER AND ISOLATING THE SAMPLE THEREIN, MEANS PERMITTING THE FLOW OF FLUID PAST THE CHAMBER WHEN THE SAMPLE IS ISOLATED IN THE CHAMBER, AND MEANS RESPONSIVE TO AND INDICATIVE OF THE HALF LIFE OF THE SAMPLE, SAID RESPONSIVE MEANS COMPRISING A RADIATION MEASURING DEVICE FOR PROVIDING AN ELECTRICAL OUTPUT REPRESENTATIVE BY ITS MAGNITUDE OF THE RADIOACTIVITY, WITHIN THE PREDETERMINED ENERGY BAND, OF THE SAMPLE, AN ELECTRICAL A TIMING MEANS RESPONSIVE TO ISOLATION OF A SAMPLE TO CAUSE THE STORAGE IN THE STORAGE MEANS OF AN ELECTRICAL VALUE WHICH DEPENDENT ON THE INSTANTANEOUS OUTPUT OF THE RADIATION MEASURING DEVICE, SAID STORAGE OCCURRING AT THE END OF A PREDETERMINED DELAY AFTER THE ISOLATION OF THE SAMPLE, COMPARISON MEANS FOR COMPARING SUBSEQUENTLY THE STORED VALUE WITH THE OUTPUT OF THE MEASURING DEVICE, AND MEANS ACTUATED BY THE COMPARISON MEANS FOR PROVIDING A SIGNAL INDICATIVE OF THE RELATIONSHIP BETWEEN THE STORED VALUE AND THE OUTPUT BY THE DEVICE AT THE END OF A SECOND PREDETERMINED DELAY SET BY THE TIMING MEANS.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |