US3245126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Introducing hydrogen gas to the meniscus for continuously casting steel
Assignee: American Smelting and Refining Co
•
Filing: 1963-05-13
•
Granted: 1966-04-12
•
Expires: 1983-05-13
Abstract
No abstract record available.
Inventors
- 👤 Albert J Phillips
- 👤 Baier Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:40
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/12; B22D11/124; B22D11/10; B22D11/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
IN A METHOD OF CONTINUOUSLY CASTING STEEL IN WHICH MOLTEN STEEL IS FED INTO THE TOP OF A VERTICALLY DISPOSED OPEN-ENDED MOLD HAVING A CHILL SECTION FOR CASTING THE MOLTEN METAL AND CAST METAL IS WITHDRAWN FROM THE OTHER END OF THE MOLD WHILE MAINTAINING THE LEVEL OF THE METAL IN THE MOLD BELOW THE TOP OF THE CHILL SECTION, AND THE MENISCUS OF THE METAL IN SAID CHILL SECTION IS VERTICALLY RECIPROACTED WITH RESPECT TO THE WALL OF THE CHILL SECTION, THE IMPROVEMENT IN COMBINATION THEREWITH WHICH COMPRISES INTROUDING A GAS CONTAINING MORE THAN ABOUT 30% BY VOLUME OF HYDROGEN TO THE MENISCUS OF THE METAL IN THE CHILL SECTION DURING THE CASTING PROCEDURE, AND CONTROLLING THE AMOUNT OF HYDROGEN WHICH IS DELIVERED TO SAID MENISCUS BY CONTROLLING THE AMOUNT OF SAID HYDROGEN DELIVERED TO THE MENISCUS DURING THE CASTING PROCEDURE TO A RATE OF INTRODUCTION WHICH IS BETWEEN THAT RATE WHICH PRODUCES AN IRREGULAR PATTERN OF IRREGULARITIES ON A MAJOR PORTION OF THE SURFACE OF THE CASTING EMERGING FROM THE MOLD AND THAT RATE WHICH PRODUCES DEEP TEARS ON THE SURFACE OF THE EMERGING CASTING.
Claim 2
Dependent Claim
187 words
IN A METHOD OF CONTINUOUSLY CASTING STEEL IN WHICH MOLTEN STEEL IS FED INTO THE TOP OF A VERTICALLY DISPOSED OPEN-ENDED MOLD HAVING A CHILL SECTION FOR CASTING THE MOLTEN METAL AND CAST METAL IS WITHDRAWN FROM THE OTHER END OF THE MOLD WHILE MAINTAINING THE LEVEL OF THE METAL IN THE MOLD BELOW THE TOP OF THE CHILL SECTION, AND THE MENISCUS OF THE METAL IN SAID CHILL SECTION IS VERTICALLY RECIPROACTED WITH RESPECT TO THE WALL OF THE CHILL SECTION, THE IMPROVEMENT IN COMBINATION THEREWITH WHICH COMPRISES INTROUDING A GAS CONTAINING MORE THAN ABOUT 30% BY VOLUME OF HYDROGEN TO THE MENISCUS OF THE METAL IN THE CHILL SECTION DURING THE CASTING PROCEDURE, AND CONTROLLING THE AMOUNT OF HYDROGEN WHICH IS DELIVERED TO SAID MENISCUS BY CONTROLLING THE AMOUNT OF SAID HYDROGEN DELIVERED TO THE MENISCUS DURING THE CASTING PROCEDURE TO A RATE OF INTRODUCTION WHICH IS BETWEEN THAT RATE WHICH PRODUCES AN IRREGULAR PATTERN OF IRREGULARITIES ON A MAJOR PORTION OF THE SURFACE OF THE CASTING EMERGING FROM THE MOLD AND THAT RATE WHICH PRODUCES DEEP TEARS ON THE SURFACE OF THE EMERGING CASTING.
References Cited (Backward Citations)
US3089209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |