Patent US620929A successfully refreshed from Google Patents.
Patent US3079246A successfully refreshed from Google Patents.
US3079246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melting metals
Assignee: Titanium Metals Corp
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Filing: 1959-08-03
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Granted: 1963-02-26
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Expires: 1979-08-03
Abstract
No abstract record available.
Inventors
- 👤 Elbert C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:47
CPC Classifications
B; B22; B22D; B22D27/00; B22D27/02; C; C22; C22B; C22B9/00; C22B9/16; C22B9/22; C22B9/228
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A PROCESS FOR MELTING A METAL IN A COLD MOLD ARC FURNACE THE IMPROVEMENT TO PRODUCE AN INGOT WHICH WILL NOT TWIST DURING SUBSEQUENT FABRICATION INTO A WROUGHT PRODUCT WHICH COMPRISES; STIRRING SAID METAL WHILE MOLTEN IN THE MOLD OF SAID FURANCE BY MEANS OF A MAGNETIC FIELD GENERATED BY PASSING ELECTRIC CURRENT THROUGH A COIL SURROUNDING SAID MOLD AND PERIODICALLY REVERSING THE DIRECTION OF FLOW OF CURRENT PASSED THROUGH SAID COIL THEREBY PERIODICALLY REVERSING THE DIRECTION OF THE FLUX IN THE MAGNETIC FIELD ACTING TO STIR SAID METAL, THE PERIODS OF CURRENT FLOW IN EACH DIRECTION THROUGH THE COIL BEING GREATER THAN THE TIME REQUIRED TO REVERSE THE DIRECTION OF METAL STIRRING IN THE MOLD AND LES THAN THIRTY TIMES SUCH TIME.
Claim 2
Dependent Claim
124 words
IN A PROCESS FOR MELTING A METAL IN A COLD MOLD ARC FURNACE THE IMPROVEMENT TO PRODUCE AN INGOT WHICH WILL NOT TWIST DURING SUBSEQUENT FABRICATION INTO A WROUGHT PRODUCT WHICH COMPRISES; STIRRING SAID METAL WHILE MOLTEN IN THE MOLD OF SAID FURANCE BY MEANS OF A MAGNETIC FIELD GENERATED BY PASSING ELECTRIC CURRENT THROUGH A COIL SURROUNDING SAID MOLD AND PERIODICALLY REVERSING THE DIRECTION OF FLOW OF CURRENT PASSED THROUGH SAID COIL THEREBY PERIODICALLY REVERSING THE DIRECTION OF THE FLUX IN THE MAGNETIC FIELD ACTING TO STIR SAID METAL, THE PERIODS OF CURRENT FLOW IN EACH DIRECTION THROUGH THE COIL BEING GREATER THAN THE TIME REQUIRED TO REVERSE THE DIRECTION OF METAL STIRRING IN THE MOLD AND LES THAN THIRTY TIMES SUCH TIME.
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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |