US3315076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Determining the thickness of a furnace lining by means of neutron activation
Assignee: Individual
•
Filing: 1964-10-07
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Granted: 1967-04-18
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Expires: 1984-10-07
Abstract
No abstract record available.
Inventors
- 👤 Edward D Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:23
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/22; G01N23/221; G01N23/222; G01N2223/00; G01N2223/07; G01N2223/074; G01N2223/0745; G01N2223/60; G01N2223/634
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
THE METHOD OF DETECTING THE WEAR OF A FURNACE LINER COMPRISING THE STEPS OF INSERTING A BORATED BRICK WITHIN SAID LINER HAVING A BORON CONTENT OF THE ORDER OF 2% BY WEIGHT, IRRADIATING SAID FURNACE FOR PRODUCING A LOW LEVEL THERMAL NEUTRON FLUX IN THE VICINITY OF SAID BORATED BRICK OF THE ORDER OF 10*4-10*6 NEUTRONS 1 CM.2/SEC., AND COUNTING THE RATE OF EMISSION OF GAMMA RAYS FROM SAID BORATED BRICK ON A COUNT RATE METER, WHERE, IN THE NON-ERODED STATE THE BRICK HAS AN ENERGY OF .477 M.E.V. AND RECOUNTING THE RATE OF EMISSION AFTER EROSION OF A PREDETERMINED PORTION WHEN A LARGE CHANGE OCCURS AT THE COUNT RATE METER INDICATING NEEDED REPLACEMENT OF THE LINER.
Claim 2
Independent Claim
117 words
THE METHOD OF DETECTING THE WEAR OF A FURNACE LINER COMPRISING THE STEPS OF INSERTING A BORATED BRICK WITHIN SAID LINER HAVING A BORON CONTENT OF THE ORDER OF 2% BY WEIGHT, IRRADIATING SAID FURNACE FOR PRODUCING A LOW LEVEL THERMAL NEUTRON FLUX IN THE VICINITY OF SAID BORATED BRICK OF THE ORDER OF 10*4-10*6 NEUTRONS 1 CM.2/SEC., AND COUNTING THE RATE OF EMISSION OF GAMMA RAYS FROM SAID BORATED BRICK ON A COUNT RATE METER, WHERE, IN THE NON-ERODED STATE THE BRICK HAS AN ENERGY OF .477 M.E.V. AND RECOUNTING THE RATE OF EMISSION AFTER EROSION OF A PREDETERMINED PORTION WHEN A LARGE CHANGE OCCURS AT THE COUNT RATE METER INDICATING NEEDED REPLACEMENT OF THE LINER.
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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |