Patent US3918668A successfully refreshed from Google Patents.
Patent US3934470A successfully refreshed from Google Patents.
US3934470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for measuring the flow rate of the gases coming out of an oxygen converter
Assignee: Nuova Italsider SpA
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Filing: 1973-11-23
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Granted: 1976-01-27
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Expires: 1993-11-23
Abstract
Abstract In a process for measuring the flow rate of a gas formed in an oxygen conversion process in which conversion process oxygen is introduced into an oxygen converter containing a material to be oxidized and gaseous effluent, including a gas formed in the oxygen converter, is withdrawn, the process is improved by including in the oxygen feed to the converter from 0.15 to 1% by volume argon, as a tracer, and determining the concentration of the argon in the gaseous effluent at the mouth of the converter or at a point before which the effluent gases are mixed with air or pollutant or before which the effluent gases are subjected to a combustion reaction.
Inventors
- 👤 Giovanni Amati
- 👤 Bruno Costa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:51
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/704
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
115 words
In a process for measuring the flow rate of a gas formed in an oxygen conversion process which conversion process is carried out by introducing oxygen into an oxygen converter containing a material to be oxidized and gaseous effluent, including a gas formed in said oxygen converter, are withdrawn, the improvement which comprises including in the oxygen feed to said converter between 0.15 and 1% by volume argon, as a tracer, and determining the concentration of said argon in the gaseous effluent at the mouth of the converter or at a point before which the effluent gases are mixed with air or pollutant or before which the effluent gases are subjected to a combustion reaction.
Claim 2
Dependent Claim
115 words
In a process for measuring the flow rate of a gas formed in an oxygen conversion process which conversion process is carried out by introducing oxygen into an oxygen converter containing a material to be oxidized and gaseous effluent, including a gas formed in said oxygen converter, are withdrawn, the improvement which comprises including in the oxygen feed to said converter between 0.15 and 1% by volume argon, as a tracer, and determining the concentration of said argon in the gaseous effluent at the mouth of the converter or at a point before which the effluent gases are mixed with air or pollutant or before which the effluent gases are subjected to a combustion reaction.
Claim 3
Dependent Claim
31 words
In a process according to claim 1, in the improvement in which the determining of the concentration of said argon in the gaseous effluent is at the month of the converter.
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) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |