Patent US3327768A successfully refreshed from Google Patents.
US3327768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horizontal continuous casting apparatus
Assignee: Alcoa Corp
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Filing: 1965-01-25
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Granted: 1967-06-27
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Expires: 1985-01-25
Abstract
No abstract record available.
Inventors
- 👤 Richard T Craig
- 👤 Robert P Dieffenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:18
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/04; B22D11/045; B22D11/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
AN APPARATUS FOR THE CONTINUOUS CASTING OF LIGHT METAL INGOT COMPRISING A MOLTEN METAL RESERVOIR, A HORIZONTALLY DISPOSED MOLD IN COMMUNICATION WITH SAID RESERVOIR, SAID MOLD HAVING CHILLED WALLS AND AN ENTRANCE AND EXIT, AND HAVING AT ITS ENTRANCE A SMALL INWARDLY EXTENDING STEP, A COMMON NON-CHILLING HEADER PLATE BETWEEN SAID RESERVOIR AND SAID ENTRANCE OF SAID MOLD EXCEPT FOR A GATE OPENING IN SAID HEADER PLATE FOR THE PASSAGE OF MOLTEN METAL FROM SAID RESERVOIR TO SAID MOLD, SAID GATE OPENING BEING ONLY SLIGHTLY SMALLER THAN THE INTERNAL DIMENSIONS OF THE MOLD ENTRANCE SUCH THAT THE DISTANCE FROM THE EDGE OF THE GATE OPENING OUTWARDLY TO THE INNER MOLD WALL SURFACE AT THE MOLD ENTRANCE RANGES FROM 1/64" TO 1/8", THE SLOPE OF THE GATE OPENING DIVERGING INTO THE MOLD AT AN ANGLE OF FROM 0* TO 60* WITH RESPECT TO THE MOLD AXIS, MEANS FOR APPLYING LUBRICANT TO THE INNER MOLD WALL SURFACE AT THE ENTRANCE PORTION OF SAID MOLD AND SUBSTANTIALLY AROUND THE PERIPHERY THEREOF, MEANS FOR COOLING SAID MOLD AND THE INGOT WITHIN AND EMERGING THEREFROM SUBSTANTIALLY AROUND THE PERIPHERY THEREOF, AND MEANS FOR WITHDRAWING THE INGOT FROM THE MOLD AT A RELATIVELY CONTINUOUS RATE.
Claim 2
Independent Claim
199 words
AN APPARATUS FOR THE CONTINUOUS CASTING OF LIGHT METAL INGOT COMPRISING A MOLTEN METAL RESERVOIR, A HORIZONTALLY DISPOSED MOLD IN COMMUNICATION WITH SAID RESERVOIR, SAID MOLD HAVING CHILLED WALLS AND AN ENTRANCE AND EXIT, AND HAVING AT ITS ENTRANCE A SMALL INWARDLY EXTENDING STEP, A COMMON NON-CHILLING HEADER PLATE BETWEEN SAID RESERVOIR AND SAID ENTRANCE OF SAID MOLD EXCEPT FOR A GATE OPENING IN SAID HEADER PLATE FOR THE PASSAGE OF MOLTEN METAL FROM SAID RESERVOIR TO SAID MOLD, SAID GATE OPENING BEING ONLY SLIGHTLY SMALLER THAN THE INTERNAL DIMENSIONS OF THE MOLD ENTRANCE SUCH THAT THE DISTANCE FROM THE EDGE OF THE GATE OPENING OUTWARDLY TO THE INNER MOLD WALL SURFACE AT THE MOLD ENTRANCE RANGES FROM 1/64" TO 1/8", THE SLOPE OF THE GATE OPENING DIVERGING INTO THE MOLD AT AN ANGLE OF FROM 0* TO 60* WITH RESPECT TO THE MOLD AXIS, MEANS FOR APPLYING LUBRICANT TO THE INNER MOLD WALL SURFACE AT THE ENTRANCE PORTION OF SAID MOLD AND SUBSTANTIALLY AROUND THE PERIPHERY THEREOF, MEANS FOR COOLING SAID MOLD AND THE INGOT WITHIN AND EMERGING THEREFROM SUBSTANTIALLY AROUND THE PERIPHERY THEREOF, AND MEANS FOR WITHDRAWING THE INGOT FROM THE MOLD AT A RELATIVELY CONTINUOUS RATE.
References Cited (Backward Citations)
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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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |