Patent US3646988A successfully refreshed from Google Patents.
US3646988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Induction apparatus for continuous and semicontinuous casting
Assignee: Individual
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Filing: 1970-05-20
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Granted: 1972-03-07
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Expires: 1990-05-20
Abstract
Abstract Apparatus for continuous and semicontinuous casting of metals by feeding molten metal into an annular electromagnetic inductor creating a field for forming an ingot cooled by a liquid supplied by a ring device made in the form of a perforated tube and mounted under the inductor so as to be capable of movement in a vertical direction.
Inventors
- 👤 Zinovy Naumovich Getselev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:44
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/01; B22D11/015
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
106 words
An apparatus for continuous and semicontinuous casting of metals into ingots comprising in combination: a device for uniform feed of molten metal, an annular electromagnetic inductor located under said device for uniform feed of molten metal for creating an electromagnetic field which holds the molten metal in the shape of an ingot before solidification, a ring device for supplying a cooling liquid onto the surface of the ingot for its solidification, said ring device comprising a tube having perforations on the side facing the ingot and being located under said inductor in close proximity thereto, and means for moving said ring device along the ingot axis.
Claim 2
Independent Claim
106 words
An apparatus for continuous and semicontinuous casting of metals into ingots comprising in combination: a device for uniform feed of molten metal, an annular electromagnetic inductor located under said device for uniform feed of molten metal for creating an electromagnetic field which holds the molten metal in the shape of an ingot before solidification, a ring device for supplying a cooling liquid onto the surface of the ingot for its solidification, said ring device comprising a tube having perforations on the side facing the ingot and being located under said inductor in close proximity thereto, and means for moving said ring device along the ingot axis.
Claim 3
Dependent Claim
51 words
An apparatus as claimed in claim 1, further comprising a device for determining the boundary between the liquid and solid phases of the ingot being formed and giving an indication of the vertical location of such boundary, said ring device being vertically adjustable in accordance with the indication of said device.
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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |