US3084039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of combustible gases in ferro-metallurgical processes
Assignee: Individual
•
Filing: 1959-01-12
•
Granted: 1963-04-02
•
Expires: 1979-01-12
Abstract
No abstract record available.
Inventors
- 👤 Baum Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:32
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A PROACESS OFF REFINING A MOLTEN FERROUS METAL BATH IN A CONVERTER WHICH IS IN ASSOCIATION WITH A HOOD POSITIONED ABOVE SAID CONVERTER, SAID HOOD BEING PROVIDED WITH A DISCHARGE OUTLET AND WHEREIN SAID CONVERTER, THE TOP SURFACE OF SAID BOTH AND SAID HOOD DEFINE A CHAMBER, COMPRISING THE STEPS OF TOP BLOWING THE SURFACE OF SAID BATH WITH A STEAM OF FREE OXYGEN-CONTAINING GAS AND, SIMULTANEOUSLY WITH SAID BLOWING, PASSING COOL INERT GAS INTO SAID CHAMBER IN SUCH A MANNER THAT SAID INERT GAS MIXTURE WITH ANY OTHER GAS PRESENT IN THE CHAMBER, CONTINUING THE PASSAGE OF SAID INERT GAS INTO SAID CHAMBER DURING SAID BLOWING OPERATION TO LOWER THE TEMPERATURE OF THE WASTE GASES RESULTING FROM THE REFINING REACTIONS TO BELOW 1000*C., PASSING SAID COOLED WASTE GASES THROOUGH SAID DISCHARGE OOUTLET AND CLEANING SAID GASES TO RECOVER CARBON MONOXIDE GAS.
Claim 2
Dependent Claim
142 words
A PROACESS OFF REFINING A MOLTEN FERROUS METAL BATH IN A CONVERTER WHICH IS IN ASSOCIATION WITH A HOOD POSITIONED ABOVE SAID CONVERTER, SAID HOOD BEING PROVIDED WITH A DISCHARGE OUTLET AND WHEREIN SAID CONVERTER, THE TOP SURFACE OF SAID BOTH AND SAID HOOD DEFINE A CHAMBER, COMPRISING THE STEPS OF TOP BLOWING THE SURFACE OF SAID BATH WITH A STEAM OF FREE OXYGEN-CONTAINING GAS AND, SIMULTANEOUSLY WITH SAID BLOWING, PASSING COOL INERT GAS INTO SAID CHAMBER IN SUCH A MANNER THAT SAID INERT GAS MIXTURE WITH ANY OTHER GAS PRESENT IN THE CHAMBER, CONTINUING THE PASSAGE OF SAID INERT GAS INTO SAID CHAMBER DURING SAID BLOWING OPERATION TO LOWER THE TEMPERATURE OF THE WASTE GASES RESULTING FROM THE REFINING REACTIONS TO BELOW 1000*C., PASSING SAID COOLED WASTE GASES THROOUGH SAID DISCHARGE OOUTLET AND CLEANING SAID GASES TO RECOVER CARBON MONOXIDE GAS.
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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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |