Patent US2943045A successfully refreshed from Google Patents.
US2943045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive measurement of the flow rate of a moving bed
Assignee: California Research LLC
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Filing: 1956-09-18
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Granted: 1960-06-28
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Expires: 1976-09-18
Abstract
No abstract record available.
Inventors
- 👤 Donald E Hull
- 👤 Clayton S Huey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:37
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; G; G01; G01F; G01F1/00; G01F1/704; G01F1/7042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
A METHOD FOR MEASURING THE BULK FLOW RATE OF A FREEFLOWING MASS OF SOLID PARTICLES WHICH COMPRISES CONTINUOUSLY RECIRCULATING SAID MASS OF PARTICLES THROUGH A CLOSED SYSTEM WHICH INCLUDES AT LEAST TWO ZONES OF DIFFERING BUT INTERDEPENDENT FUNCTION AND IN ONE OF WHICH ZONES HYDROCARBONS ARE CONTACTED WITH A FREE-FLOWING MOVING-BED OF SAID SOLID PARTICLES, INTRODUCING A SOLID RADIOACTIVE PARTICLE INTO SAID MASS OF RECIRCULATING FLOWING PARTICLES, PASSING THE RESULTING MASS CONTAINING SAID RADIOACTIVE PARTICLE THROUGH A RESTRICTED MEASURING ZONE OF KNOWN VOLUME AND THENCE RETURNING THE FLOWING MASS TO SAID SYSTEM, MAINTAINING SAID MEASURING ZONE FILLED WITH SAID FLOWING SOLID PARTICLES, DETECTING THE RADIOACTIVE SIGNAL WHEN SAID RADIOACTIVE PARTICLE ENTERS SAID MEASURING ZONE, AGAIN DETECTING THE RADIOACTIVE SIGNAL WHEN SAID RADIO-ACTIVE PARTICLE LEAVES SAID MEASURING ZONE, MEASURING THE LAPSED TIME BETWEEN SAID ENTERING AND SAID LEAVING SIGNALS, SAID LAPSED TIME SO OBSERVED BEING A MEASURE OF THE BULK FLOW RATE OF SAID MASS OF PARTICLES THROUGH THE SYSTEM, CONTINUING TO RECYCLE SAID MASS OF PARTICLES INCLUDING SAID RADIOACTIVE PARTICLE AND REPETITIVELY DETECTING THE ENTERING AND LEAVING SIGNALS FROM SAID RADIOACTIVE PARTICLE AND THE LAPSED TIME BETWEEN SAID SIGNALS WHEN IT IS CARRIED THROUGH SAID MEASURING ZONE WITH SAID RECIRCULATING MASS OF PARTICLES.
Claim 2
Independent Claim
203 words
A METHOD FOR MEASURING THE BULK FLOW RATE OF A FREEFLOWING MASS OF SOLID PARTICLES WHICH COMPRISES CONTINUOUSLY RECIRCULATING SAID MASS OF PARTICLES THROUGH A CLOSED SYSTEM WHICH INCLUDES AT LEAST TWO ZONES OF DIFFERING BUT INTERDEPENDENT FUNCTION AND IN ONE OF WHICH ZONES HYDROCARBONS ARE CONTACTED WITH A FREE-FLOWING MOVING-BED OF SAID SOLID PARTICLES, INTRODUCING A SOLID RADIOACTIVE PARTICLE INTO SAID MASS OF RECIRCULATING FLOWING PARTICLES, PASSING THE RESULTING MASS CONTAINING SAID RADIOACTIVE PARTICLE THROUGH A RESTRICTED MEASURING ZONE OF KNOWN VOLUME AND THENCE RETURNING THE FLOWING MASS TO SAID SYSTEM, MAINTAINING SAID MEASURING ZONE FILLED WITH SAID FLOWING SOLID PARTICLES, DETECTING THE RADIOACTIVE SIGNAL WHEN SAID RADIOACTIVE PARTICLE ENTERS SAID MEASURING ZONE, AGAIN DETECTING THE RADIOACTIVE SIGNAL WHEN SAID RADIO-ACTIVE PARTICLE LEAVES SAID MEASURING ZONE, MEASURING THE LAPSED TIME BETWEEN SAID ENTERING AND SAID LEAVING SIGNALS, SAID LAPSED TIME SO OBSERVED BEING A MEASURE OF THE BULK FLOW RATE OF SAID MASS OF PARTICLES THROUGH THE SYSTEM, CONTINUING TO RECYCLE SAID MASS OF PARTICLES INCLUDING SAID RADIOACTIVE PARTICLE AND REPETITIVELY DETECTING THE ENTERING AND LEAVING SIGNALS FROM SAID RADIOACTIVE PARTICLE AND THE LAPSED TIME BETWEEN SAID SIGNALS WHEN IT IS CARRIED THROUGH SAID MEASURING ZONE WITH SAID RECIRCULATING MASS OF PARTICLES.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |