US3083298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of weight determination
Assignee: General Dynamics Corp
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Filing: 1959-09-18
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Granted: 1963-03-26
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Expires: 1979-09-18
Abstract
No abstract record available.
Inventors
- 👤 Parker Earl Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:27
CPC Classifications
G; G21; G21H; G21H5/00; G21H5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
AN IMPROVED METHOD FOR WEIGHT DETERMINATION OF A FLOWABLE MASS, WHICH METHOD COMPRISES THE STEPS OF SUBSTANTIALLY UNIFORMLY DISPERSING IN A FLOWABLE MASS, THE WEIGHT OF WHICH IS TO BE DETERMINED, A RADIOACTIVE MATERIAL, THE TOTAL RADIOACTIVITY OF WHICH IS KNOWN, AT LEAST A MAJOR PROPORTION OF SAID MATERIAL CONSISTING OF RADIOISOTOPES HAVING SHORT HALF LIVES, THE TOTAL RADIATION CONTRIBUTED BY LONG-LIVED RADIOISOTOPES BEING BELOW NORMAL BACKGROUND RADIATION LEVELS, SAID MATERIAL BEING PRESENT IN AN AMOUNT SUFFICIENT TO BE DETECTABLE IN SAID MASS, WITHDRAWING A SAMPLE FROM SAID MASS, WEIGHING SAID SAMPLE AND DETERMINING THE RADIOACTIVITY THEREOF, AND COMPARING THE RADIOACTIVITY OF SAID SAMPLE WITH THE RADIOACTIVITY OF SAID MATERIAL PRIOR TO DISPERSING IN SAID MASS, WHEREBY THE TOTAL WEIGHT OF SAID MASS IS READILY DETERMINABLE AS A FUNCTION OF THE DEGREE OF DILUTION OF THE RADIOACTIVITY OF SAID MATERIAL IN SAID MASS.
Claim 2
Dependent Claim
143 words
AN IMPROVED METHOD FOR WEIGHT DETERMINATION OF A FLOWABLE MASS, WHICH METHOD COMPRISES THE STEPS OF SUBSTANTIALLY UNIFORMLY DISPERSING IN A FLOWABLE MASS, THE WEIGHT OF WHICH IS TO BE DETERMINED, A RADIOACTIVE MATERIAL, THE TOTAL RADIOACTIVITY OF WHICH IS KNOWN, AT LEAST A MAJOR PROPORTION OF SAID MATERIAL CONSISTING OF RADIOISOTOPES HAVING SHORT HALF LIVES, THE TOTAL RADIATION CONTRIBUTED BY LONG-LIVED RADIOISOTOPES BEING BELOW NORMAL BACKGROUND RADIATION LEVELS, SAID MATERIAL BEING PRESENT IN AN AMOUNT SUFFICIENT TO BE DETECTABLE IN SAID MASS, WITHDRAWING A SAMPLE FROM SAID MASS, WEIGHING SAID SAMPLE AND DETERMINING THE RADIOACTIVITY THEREOF, AND COMPARING THE RADIOACTIVITY OF SAID SAMPLE WITH THE RADIOACTIVITY OF SAID MATERIAL PRIOR TO DISPERSING IN SAID MASS, WHEREBY THE TOTAL WEIGHT OF SAID MASS IS READILY DETERMINABLE AS A FUNCTION OF THE DEGREE OF DILUTION OF THE RADIOACTIVITY OF SAID MATERIAL IN SAID MASS.
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) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |