US3093739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for determining fluid flow in a conduit
Assignee: Motors Liquidation Co
•
Filing: 1958-03-10
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Granted: 1963-06-11
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Expires: 1978-03-10
Abstract
No abstract record available.
Inventors
- 👤 John P Danforth
- 👤 Robert E Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:40
CPC Classifications
G; G21; G21H; G21H5/00; G21H5/02; G01; G01F; G01F1/00; G01F1/704; G01F1/7042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METHOD FOR DETECTING THE LOCATION OF AN OPENING IN A FLUID CONDUIT COMPRISING THE STEPS OF CLOCKING THE CONDUIT DOWNSTREAM OF THE ESTIMATED LOCATION OF THE OPENING, PLACING IN THE FLUID UPSTREAM OF THE ESTIMATED LOCATION OF THE OPENING A CAPSULE HAVING SUBSTANTIALLY THE SAME DENSITY AS THE FLUID AND CONTAINING A RADIOACTIVE MATERIAL, DETECTING ANY CHANGE IN THE RATE OF MOVEMENT OF THE CAPSULE THROUGH THE CONDUIT BY FOLLOWING SAID CAPSULE WITH A RADIATION DETECTOR EXTERNAL OF SAID CONDUIT, AND THEN REMOVE THE CAPSULE FROM THE CONDUIT.
Claim 2
Independent Claim
89 words
A METHOD FOR DETECTING THE LOCATION OF AN OPENING IN A FLUID CONDUIT COMPRISING THE STEPS OF CLOCKING THE CONDUIT DOWNSTREAM OF THE ESTIMATED LOCATION OF THE OPENING, PLACING IN THE FLUID UPSTREAM OF THE ESTIMATED LOCATION OF THE OPENING A CAPSULE HAVING SUBSTANTIALLY THE SAME DENSITY AS THE FLUID AND CONTAINING A RADIOACTIVE MATERIAL, DETECTING ANY CHANGE IN THE RATE OF MOVEMENT OF THE CAPSULE THROUGH THE CONDUIT BY FOLLOWING SAID CAPSULE WITH A RADIATION DETECTOR EXTERNAL OF SAID CONDUIT, AND THEN REMOVE THE CAPSULE FROM THE CONDUIT.
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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |