US3565606A
Expired / Lapsed
US
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Method for controlling carbon removal in a basic oxygen furnace
Assignee: Westinghouse Electric Corp
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Filing: 1967-06-27
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Granted: 1971-02-23
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Expires: 1987-06-27
Abstract
Abstract BOTH LOW AND HIGH CARBON ARE PRODUCED IN A BASIC OXYGEN FURNACE CONTROLLED BY A SYSTEM WHICH EMPLOYS A DIRECT SAMPLER OPERATED AT AN ADEQUATELY EARLY PREDETERMINED TIME DURING THE OXYGEN BLOW. ENDPOINT CARBON LEVEL IS CONTROLLED AS A RESULT OF CALCULATIONS MADE FROM THE SAMPLE CARBON LEVEL AND WASTE GAS MEASUREMENTS OF POST SAMPLE TIME CARBON REMOVAL. THE CARBON CONTROL IS MADE COMPATIBLE WITH OTHER ENDPOINT CONTROLS.
Inventors
- 👤 Norman R Carlson
- 👤 Richard E J Putman
- 👤 James T Carleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:49
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/4673; G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/12; G01N1/125; Y; Y10; Y10S; Y10S73/00; Y10S73/09
Claims Analysis
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |