Patent US3191292A successfully refreshed from Google Patents.
US3191292A
Expired / Lapsed
US
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Method of producing rolled metal articles
Assignee: Amsted Industries Inc
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Filing: 1963-07-16
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Granted: 1965-06-29
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Charles F Strom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:34
CPC Classifications
B; B22; B22D; B22D18/00; B22D18/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49988; Y10T29/49989; Y10T29/49991
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN A METHOD OF PRODUCING COMMERCIAL ROLLED STEEL PRODUCT DIRECTLY FROM CAST BILLETS, BLOOMS OR SLABS, THE STEPS OF; APPLYING PRESSURE AGAINST THE UPPER SURFACE OF MOLTEN STEEL IN A CONTAINER TO FORCE THE MOLTEN STEEL UPWARDLY AT A NONTURBULENT FLOW RATE THROUGH A POURING TUBE INTO A BOTTOM GATE OF AN ELONGATED CHILL MOLD HAVING A THERMAL CONDUCTIVITY COEFFICIENT VALUE AT 18*C. OF THE ORDER OF 0.1 CAL./SEC./CM.2* C./CM., OR GREATER, SAID MOLD HAVING A RISER AT ITS UPPER END TO SEAL INTERNAL SHRINKAGE OF THE STEEL FOR A LIMITED DEPTH FROM THE TOP OF THE MOLD; THEN, WHEN THE MOLD HAS BEEN FILLED WITH SAID MOLTEN STEEL, CLOSING SAID GATE BY A CHILL HAVING A THERMAL CONDUCTIVITY COEFFICIENT VALUE AT 18*C. OF THE ORDER OF 0.1 OR GREATER; THEN, AFTER THE STEEL IN THE MOLD HAS SOLIDIFIED INTO A CASTING, CUTTING OFF THE RISER AT AN AREA OF THE CASTING
Claim 2
Dependent Claim
152 words
IN A METHOD OF PRODUCING COMMERCIAL ROLLED STEEL PRODUCT DIRECTLY FROM CAST BILLETS, BLOOMS OR SLABS, THE STEPS OF; APPLYING PRESSURE AGAINST THE UPPER SURFACE OF MOLTEN STEEL IN A CONTAINER TO FORCE THE MOLTEN STEEL UPWARDLY AT A NONTURBULENT FLOW RATE THROUGH A POURING TUBE INTO A BOTTOM GATE OF AN ELONGATED CHILL MOLD HAVING A THERMAL CONDUCTIVITY COEFFICIENT VALUE AT 18*C. OF THE ORDER OF 0.1 CAL./SEC./CM.2* C./CM., OR GREATER, SAID MOLD HAVING A RISER AT ITS UPPER END TO SEAL INTERNAL SHRINKAGE OF THE STEEL FOR A LIMITED DEPTH FROM THE TOP OF THE MOLD; THEN, WHEN THE MOLD HAS BEEN FILLED WITH SAID MOLTEN STEEL, CLOSING SAID GATE BY A CHILL HAVING A THERMAL CONDUCTIVITY COEFFICIENT VALUE AT 18*C. OF THE ORDER OF 0.1 OR GREATER; THEN, AFTER THE STEEL IN THE MOLD HAS SOLIDIFIED INTO A CASTING, CUTTING OFF THE RISER AT AN AREA OF THE CASTING
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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |