Patent US3248541A successfully refreshed from Google Patents.
US3248541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactivity device for measurement of properties of materials
Assignee: Nuclear Chicago Corp
•
Filing: 1962-08-20
•
Granted: 1966-04-26
•
Expires: 1982-08-20
Abstract
No abstract record available.
Inventors
- 👤 Jack G Crump
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:28
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/02; G01N23/06; G01N23/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
IN RADIOACTIVITY SOURCE-AND-DETECTOR APPARATUS FOR MEASUREMENT OF DENSITY AND SIMILAR PROPERTIES OF FLUIDS IN ROUND PIPES, OF THE TYPE HAVING (A) A SOURCE-HOUSING HAVING THEREIN A GAMMA-RAYEMITTING BODY DIMENSIONED TO FORM ESSENTIALLY A POINT SOURCE. (B) A DETECTOR-HOUSING HAVING THEREIN A GAMMA-RAY DETECTING MEANS AND (C) MEANS FOR MOUNTING THE HOUSINGS ON OPPOSITE SIDES OF A ROUND PIPE, THE IMPROVEMENT CHARACTERIZED BY: (D) THE GAMMA-RAY DETECTING MEANS FORMING A DETECTING AREA HAVING A DIMENSION IN THE PLANE TRANSVERSE TO THE PIPE OF BETWEEN ONE-THIRD AND ONE-AND-ONE HALF TIMES THE DIAMETER OF THE PIPE, AND (E) THE SOURCE-HOUSING HAVING MEANS FOR CONFINING THE SOLID ANGLE OF THE EMITTED RADIATION TO APPROXIMATE COINCIDENCE WITH THE DETECTING AREA.
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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |