US3200457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of regulating the discharge of molten metal from ladles
Assignee: United States Steel Corp
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Filing: 1964-03-09
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Granted: 1965-08-17
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Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 James B Wagstaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:20
CPC Classifications
B; B22; B22D; B22D41/00; B22D41/14; B22D41/16; B22D41/18; B22D41/186; F; F27; F27D; F27D3/00; F27D3/15; F27D3/1509; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0391
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A METHOD OF REGULATING THE DISCHARGE OF MOLTEN METAL FLOWING THROUGH A VERTICALLY EXTENDING ORIFICE IN A TEEMING NOZZLE IN THE BOTTOM OF A REFRACTORY-LINED LADLE WHICH COMPRISES FORCING GAS THROUGH SAID NOZZLE ORIFICE TO
Claim 2
Independent Claim
35 words
A METHOD OF REGULATING THE DISCHARGE OF MOLTEN METAL FLOWING THROUGH A VERTICALLY EXTENDING ORIFICE IN A TEEMING NOZZLE IN THE BOTTOM OF A REFRACTORY-LINED LADLE WHICH COMPRISES FORCING GAS THROUGH SAID NOZZLE ORIFICE TO
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |