US3661559A
Expired / Lapsed
US
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Metallurgical process control of oxygen content
Assignee: Dunai Vasmu
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Filing: 1968-12-03
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Granted: 1972-05-09
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Expires: 1988-12-03
Abstract
Abstract A metallurgical process is controlled by directly measuring the oxygen content of a specimen taken from the melted charge. The specimen is subjected to neutron radiation, and the radiation of the resulting 16N isotopes is measured. Addition agents are then used to alter the oxygen content of the charge to a desired value. Preferably, the specimen is bombarded simultaneously with a specimen of known oxygen content, and the differences in radiation of the known and unknown specimens are automatically displayed and/or used to effect the desired additions.
Inventors
- 👤 Aurel Horvath
- 👤 Gellert Repasi
- 👤 Elek Szabo
- 👤 Bruno Vorsatz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:56
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
55 words
A method as claimed in claim 1, and exposing to said neutron radiation a specimen of known oxygen content, detecting the radiation of the 16N isotopes produced by radiation of said known specimen, determining the difference in detected radiation of said known and unknown specimens, and effecting said addition in response to said determined difference.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |