US2639984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous cupola-bessemer process
Assignee: Individual
•
Filing: 1952-08-07
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Granted: 1953-05-26
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Expires: 1972-08-07
Abstract
No abstract record available.
Inventors
- 👤 Jordan James Fernando
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:29
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/56; C21C5/567; Y; Y10; Y10S; Y10S75/00; Y10S75/957
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A BESSEMER PROCESS WHEREIN STEEL IS PRODUCED FROM A MOLTEN METAL OBTAINED BY MELTING A CHARGE CONSISTING OF AT LEAST 50% STEEL SCRAP IN A COKE-FIRED CUPOLA, THE IMPROVEMENT, WHICH COMPRISES: MELTING SAID CHARGE IN CONTACT WITH A BASIC SLAG OF A V-RATIO ABOVE 1.0 WITHIN SAID CUPOLA; AND FLOWING SAID SLAG AND SAID METAL TO A CONTINUOUS BESSEMER PROCESS WHEREIN SAID METAL IS BESSEMERIZED BY MEANS OF A SERIES OF AIR JETS WHICH ARE SPREAD OUT ALONG A STREAM OF SAID METAL AS SAID METAL STREAM FLOW ALONG,UNDER AMD IN CONTACT WITH SAID SLAG, SO THAT SAID CUPPOLA SLAG ACTS AS THE REFINING SLAG OF SAID BESSEMER PROCESS.
Claim 2
Dependent Claim
110 words
IN A BESSEMER PROCESS WHEREIN STEEL IS PRODUCED FROM A MOLTEN METAL OBTAINED BY MELTING A CHARGE CONSISTING OF AT LEAST 50% STEEL SCRAP IN A COKE-FIRED CUPOLA, THE IMPROVEMENT, WHICH COMPRISES: MELTING SAID CHARGE IN CONTACT WITH A BASIC SLAG OF A V-RATIO ABOVE 1.0 WITHIN SAID CUPOLA; AND FLOWING SAID SLAG AND SAID METAL TO A CONTINUOUS BESSEMER PROCESS WHEREIN SAID METAL IS BESSEMERIZED BY MEANS OF A SERIES OF AIR JETS WHICH ARE SPREAD OUT ALONG A STREAM OF SAID METAL AS SAID METAL STREAM FLOW ALONG,UNDER AMD IN CONTACT WITH SAID SLAG, SO THAT SAID CUPPOLA SLAG ACTS AS THE REFINING SLAG OF SAID BESSEMER PROCESS.
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) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |