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Patent US3558121A successfully refreshed from Google Patents.
US3558121A
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US
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Apparatus for treating of steel or other metals, especially for continuous casting
Assignee: Kloeckner Werke AG
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Filing: 1968-09-18
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Granted: 1971-01-26
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Expires: 1988-09-18
Abstract
Abstract Apparatus by which molten steel or other metal is deslagged and the air and other gasses absorbed by the hot metal during production are exhausted preparatory to the casting process and is especially adapted for use with a continuous casting process.
Inventors
- 👤 Helmut Lenne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:04
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/10; B; B22; B22D; B22D11/00; B22D11/10; B22D11/11; B22D11/113
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
14 words
Apparatus according to claim 1, wherein the second conduit means comprises a suction pipe.
Claim 2
Dependent Claim
28 words
Apparatus according to claim 2, including means for raising and lowering the collector for effectively varying the flow of molten metal from the collector to the degassing chamber.
Claim 3
Dependent Claim
20 words
Apparatus according to claim 1, wherein the degassing chamber includes a top wall in spaced parallelism to the bottom wall.
Claim 4
Dependent Claim
13 words
Apparatus according to claim 4, including heating means associated with the top wall.
Claim 5
Dependent Claim
14 words
Apparatus according to claim 1, including a meltable diaphragm across the third conduit means.
Claim 6
Dependent Claim
26 words
Apparatus according to claim 1, including level indicators at the collector, at the collecting and outflow grooves of the degassing chamber and at the distributing chamber.
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |