US3299268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quantitative chemical analysis comprising irradiating with neutrons and measuring the characteristic decay pattern
Assignee: Toshiba Corp
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Filing: 1963-06-12
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Granted: 1967-01-17
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Expires: 1983-06-12
Abstract
No abstract record available.
Inventors
- 👤 Muto Haruo
- 👤 Onodera Koichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:46
CPC Classifications
G; G01; G01T; G01T3/00; G01N; G01N23/00; G01N23/22; G01N23/221; G01N23/222; G21; G21C; G21C17/00; G21C17/10; G01N2223/00; G01N2223/07; G01N2223/074; G01N2223/0745; G01N2223/30; G01N2223/303; G01N2223/304; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A SYSTEM FOR THE QUANTITATIVE CHEMICAL ANALYSIS OF SUBSTANCES, SAID SYSTEM COMPRISING MEANS FOR GENERATING NEUTRON FLUX, MEANS FOR PRESENTING SAMPLES OF THE SUBSTANCE TO BE ANALYZED TO THE GENERATED FLUX TO BE IRRADIATED THEREBY AND TO FORM RADIOACTIVE NUCLIDES IN AN AMOUNT WHICH IS PROPORTIONAL TO THE AMOUNT OF THE SUBSTANCE PRESENT IN THE SAMPLE AND TO THE AMOUNT OF FLUX GENERATED, EACH KIND OF SAID RADIOACTIVE NUCLIDES HAVING A CHARACTERISTIC PATTERN OF DECAY OR HALF-LIFE WHICH IS DEPENDENT UPON THE NATURE OF THE NUCLIDE, MEANS FOR MEASURING THE AMOUNT OF RADIOACTIVITY INDUCED IN A SAMPLE OF THE SUBSTANCE BEING ANALYZED, SAID MESURING MEANS INCLUDING A DETECTOR OF RADIOACTIVITY WHICH GENERATES ELECTRICAL PULSES PROPORTIONAL TO THE AMOUNT OF RADIATION FROM SAID SAMPLE AND A MEANS FOR MEASURING AND INDICATING BY THE AMPLITUDE OF A FIRST DIRECT CURRENT THE HEIGHT OF THE PULSES PRODUCED BY SAID DETECTOR, A COMPARISON DEVICE FOR DETERMINING AND INDICATING THE AMOUNT OF NEUTRON FLUX GENERATED FOR IRRADIATING SAID SAMPLES, SAID COMPARISON DEVICE INCLUDING MEANS FOR DETECTING THE NEUTRON FLUX BEING GENERATED AND FOR PRODUCING A SECOND DIRECT ELECTRICAL CURRENT IN PROPORTION THERETO, AND ELECTRICAL CIRCUIT MEANS CONNECTED TO THE OUTPUT FROM SAID NEUTRON FLUX
Claim 2
Independent Claim
199 words
A SYSTEM FOR THE QUANTITATIVE CHEMICAL ANALYSIS OF SUBSTANCES, SAID SYSTEM COMPRISING MEANS FOR GENERATING NEUTRON FLUX, MEANS FOR PRESENTING SAMPLES OF THE SUBSTANCE TO BE ANALYZED TO THE GENERATED FLUX TO BE IRRADIATED THEREBY AND TO FORM RADIOACTIVE NUCLIDES IN AN AMOUNT WHICH IS PROPORTIONAL TO THE AMOUNT OF THE SUBSTANCE PRESENT IN THE SAMPLE AND TO THE AMOUNT OF FLUX GENERATED, EACH KIND OF SAID RADIOACTIVE NUCLIDES HAVING A CHARACTERISTIC PATTERN OF DECAY OR HALF-LIFE WHICH IS DEPENDENT UPON THE NATURE OF THE NUCLIDE, MEANS FOR MEASURING THE AMOUNT OF RADIOACTIVITY INDUCED IN A SAMPLE OF THE SUBSTANCE BEING ANALYZED, SAID MESURING MEANS INCLUDING A DETECTOR OF RADIOACTIVITY WHICH GENERATES ELECTRICAL PULSES PROPORTIONAL TO THE AMOUNT OF RADIATION FROM SAID SAMPLE AND A MEANS FOR MEASURING AND INDICATING BY THE AMPLITUDE OF A FIRST DIRECT CURRENT THE HEIGHT OF THE PULSES PRODUCED BY SAID DETECTOR, A COMPARISON DEVICE FOR DETERMINING AND INDICATING THE AMOUNT OF NEUTRON FLUX GENERATED FOR IRRADIATING SAID SAMPLES, SAID COMPARISON DEVICE INCLUDING MEANS FOR DETECTING THE NEUTRON FLUX BEING GENERATED AND FOR PRODUCING A SECOND DIRECT ELECTRICAL CURRENT IN PROPORTION THERETO, AND ELECTRICAL CIRCUIT MEANS CONNECTED TO THE OUTPUT FROM SAID NEUTRON FLUX
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |