Process and device for electromagnetically casting metals
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 5, 1991
Grant Date -
N/A
app pub date -
Nov 13, 1989
filing date -
Dec 22, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a process for electromagnetic casting of round and hollow ingots, in particular such of aluminum and aluminum alloys, the ingot (7) is rotated about its longitudinal axis (x) during casting. This is achieved by way of a rotatable dummy base (6). With that the metal feed and cooling of the ingot is made symmetrical and, as a result, a more uniform shape is obtained and a more uniform cell structure across the ingot cross-section. In order to promote a stronger stirring effect, a stationary stirrer (8) dipping into the molten part of the ingot (7) can be provided attached to the metal inlet system (3).
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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SWISS ALUMINIUM LTD | RHINE HAOSEN FOURNEAUX SWITZERLAND NEUHAUSEN AM RHEINFALL KANTON SCHAFFHAUSEN |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Weber, Jean-Claude | Sierre, CH | 7 | 33 |
# of filed Patents : 7 Total Citations : 33 |
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Patent Citation Ranking
- 3 Citation Count
- B22D Class
- 0 % this patent is cited more than
- 34 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Jan 23, 2018 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jun 13, 1993 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jun 13, 1993 |
Jun 13, 1993 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Dec 05, 1988 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Nov 02, 1987 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Jun 11, 1985 | I | Issuance | |
Dec 22, 1984 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:STANDARD-KNAPP, INC., A CORP OF CT;REEL/FRAME:004354/0414 Owner name: NEW STANDARD-KNAPP, INC., A CORP OF CT Effective Date: Dec 22, 1984 free format text: MORTGAGE;ASSIGNOR:NEW STANDARD-KNAPP, INC. A CORP OF CT;REEL/FRAME:004354/0422 Owner name: UNITED BANK & TRUST COMPANY, A CT BANKING CORP OF Effective Date: Dec 22, 1984 |
Dec 27, 1983 | F | Filing | |
Dec 27, 1983 | PD | Priority Date | |
Dec 21, 1983 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:BAUERS, BARTON M.;RAUDAT, JOHN L.;EHLERS, RAYMOND C.;AND OTHERS;REEL/FRAME:004215/0662 Owner name: STANDARD-KNAPP, INC. PORTLAND, CT. A CT CORP. Effective Date: Dec 21, 1983 |

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