US3329495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for measuring the value of carbon content of a steel bath in an oxygen top-blowing converter
Assignee: Yawata Iron and Steel Co Ltd
•
Filing: 1964-09-22
•
Granted: 1967-07-04
•
Expires: 1984-09-22
Abstract
No abstract record available.
Inventors
- 👤 Ohta Takayoshi
- 👤 Akuta Tomohiko
- 👤 Yoshizumi Hideo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:28
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/30; G; G01; G01N; G01N33/00; G01N33/20; G01N33/202; G01N33/2022; G01N33/2025; G01N33/205
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A PROCESS FOR TAPPING STEEL FROM AN OXYGEN TOP-BLOWING CONVERTER, SAID STEEL HAVING A PREDETERMINED CARBON CONTENT, WHICH COMPRISES MEASURING THE AMOUNT OF WASTE GAS ISSUED FROM SAID CONVERTER, MEASURING THE AMOUNT OF CARBON MONOXIDE AND CARBON DIOXIDE CONTAINED IN SAID WASTE GAS, CALCULATING THE DECARBURIZATION VELOCITY FROM THE AMOUNT OF WASTE GAS AND THE AMOUNT OF CARBON MONOXIDE AND CARBON DIOXIDE IN SAID WASTE GAS IN ACCORDANCE WITH THE FOLLOWING FORMULA -(DC/DT) = FI(((CO)+(CO2))/100) WHEREIN -(DC/DT) IS THE DECARBURIZING VELOCITY, F1 IS THE AMOUNT OF WASTE GAS, (CO) IS THE AMOUNT OF CARBON MONOXIDE IN SAID
Claim 2
Dependent Claim
97 words
A PROCESS FOR TAPPING STEEL FROM AN OXYGEN TOP-BLOWING CONVERTER, SAID STEEL HAVING A PREDETERMINED CARBON CONTENT, WHICH COMPRISES MEASURING THE AMOUNT OF WASTE GAS ISSUED FROM SAID CONVERTER, MEASURING THE AMOUNT OF CARBON MONOXIDE AND CARBON DIOXIDE CONTAINED IN SAID WASTE GAS, CALCULATING THE DECARBURIZATION VELOCITY FROM THE AMOUNT OF WASTE GAS AND THE AMOUNT OF CARBON MONOXIDE AND CARBON DIOXIDE IN SAID WASTE GAS IN ACCORDANCE WITH THE FOLLOWING FORMULA -(DC/DT) = FI(((CO)+(CO2))/100) WHEREIN -(DC/DT) IS THE DECARBURIZING VELOCITY, F1 IS THE AMOUNT OF WASTE GAS, (CO) IS THE AMOUNT OF CARBON MONOXIDE IN SAID
References Cited (Backward Citations)
US2595792A
Cited
US3218842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |