Patent US3344845A successfully refreshed from Google Patents.
US3344845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horizontal continuous casting apparatus
Assignee: Alcoa Corp
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Filing: 1965-08-16
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Granted: 1967-10-03
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Expires: 1985-08-16
Abstract
No abstract record available.
Inventors
- 👤 John A Blessinger
- 👤 Gerald L Molvik
- 👤 Richard C Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:31
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/08; B22D11/12; B22D11/128; B22D11/1284; B22D11/14; B22D11/147
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
IN CONTINUOUS CASTING APPARATUS COMPRISING A PLURALITY OF HORIZONTALLY DISPOSED OPEN ENDED CHILLED MOLDS SHARING A COMMON MOLTEN METAL SUPPLY AND COMMON PRIME INGOT SUPPORT AND WITHDRAWAL MEANS, THE IMPROVEMENT COMPRISING MEANS FOR CLOSING THE FLOW OF MOLTEN METAL TO A SELECTED MOLD WITHOUT INTERRUPTING FLOW TO THE REMAINING MOLDS AND MEANS FOR RESTARTING CASTING AT THE SELECTED MOLD COMPRISING A SEPARATE STARTING PLUG CONSTRUCTED TO CLOSE THE MOLD OUTLET TO THE FLOW OF MOLTEN METAL, MEANS FOR SUPPORTING THE STARTING PLUG SO AS TO MAINTAIN SAID STARTING PLUG IN AXIAL ALIGNMENT WITH SAID SELECTED MOLD, MEANS FOR WITHDRAWING THE STARTING PLUG AND THE INGOT CONNECTED THERETO AT A RATE INDEPENDENT OF THE PRIME INGOT WITHDRAWAL MEANS, MEANS TO PREVENT STARTING PLUG RESPONSE TO SAID PRIME INGOT WITHDRAWAL MEANS, AND MEANS FOR TRANSFERRING SUPPORT AND WITHDRAWAL OF THE STARTING PLUG AND THE INGOT CONNECTED THERETO TO THE PRIME INGOT WITHDRAWAL AND SUPPORT MEANS.
Claim 2
Dependent Claim
153 words
IN CONTINUOUS CASTING APPARATUS COMPRISING A PLURALITY OF HORIZONTALLY DISPOSED OPEN ENDED CHILLED MOLDS SHARING A COMMON MOLTEN METAL SUPPLY AND COMMON PRIME INGOT SUPPORT AND WITHDRAWAL MEANS, THE IMPROVEMENT COMPRISING MEANS FOR CLOSING THE FLOW OF MOLTEN METAL TO A SELECTED MOLD WITHOUT INTERRUPTING FLOW TO THE REMAINING MOLDS AND MEANS FOR RESTARTING CASTING AT THE SELECTED MOLD COMPRISING A SEPARATE STARTING PLUG CONSTRUCTED TO CLOSE THE MOLD OUTLET TO THE FLOW OF MOLTEN METAL, MEANS FOR SUPPORTING THE STARTING PLUG SO AS TO MAINTAIN SAID STARTING PLUG IN AXIAL ALIGNMENT WITH SAID SELECTED MOLD, MEANS FOR WITHDRAWING THE STARTING PLUG AND THE INGOT CONNECTED THERETO AT A RATE INDEPENDENT OF THE PRIME INGOT WITHDRAWAL MEANS, MEANS TO PREVENT STARTING PLUG RESPONSE TO SAID PRIME INGOT WITHDRAWAL MEANS, AND MEANS FOR TRANSFERRING SUPPORT AND WITHDRAWAL OF THE STARTING PLUG AND THE INGOT CONNECTED THERETO TO THE PRIME INGOT WITHDRAWAL AND SUPPORT MEANS.
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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |