US4582116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction method for filament formation of high temperature reactive alloys
Assignee: Honeywell International Inc
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Filing: 1983-08-30
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Granted: 1986-04-15
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Expires: 2003-08-30
Abstract
Abstract A tiltable cooled crucible for containing the molten alloy has a spout for extracting the molten alloy. The alloy is cast on an advanceable chilled surface. The cooled crucible is protected from the molten alloy by a solidified layer of the alloy which is solidified and prevents reaction between the molten alloy and the cooled crucible.
Inventors
- 👤 Ranjan Ray
- 👤 Lee E. Tanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:57
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/06; B22D11/0611
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
136 words
A method for making a continuous metal strip directly from a melt which comprises the steps of: (a) providing a charge of molten metal in a tiltable crucible having a top opening defining a lip for pouring molten metal thereover; (b) providing a solidified layer of the melt within the crucible in contact with the inner wall of the crucible for preventing interaction between the melt and said crucible; (c) tilting said crucible to elevate the molten metal to cause it to flow over said lip in a stream; (d) contacting said stream with a chill surface provided by a heat extracting member; (e) advancing the chill surface; and (f) quenching the molten metal in one-sided contact with the chill surface at a rapid rate to effect solidification of said melt into a continuous metal strip.
Claim 2
Independent Claim
136 words
A method for making a continuous metal strip directly from a melt which comprises the steps of: (a) providing a charge of molten metal in a tiltable crucible having a top opening defining a lip for pouring molten metal thereover; (b) providing a solidified layer of the melt within the crucible in contact with the inner wall of the crucible for preventing interaction between the melt and said crucible; (c) tilting said crucible to elevate the molten metal to cause it to flow over said lip in a stream; (d) contacting said stream with a chill surface provided by a heat extracting member; (e) advancing the chill surface; and (f) quenching the molten metal in one-sided contact with the chill surface at a rapid rate to effect solidification of said melt into a continuous metal strip.
Claim 3
Dependent Claim
32 words
The method of claim 1 wherein the step of providing a charge of molten metal in said crucible includes the step of heating the metal charge by passing an electric current therethrough.
Claim 4
Dependent Claim
39 words
The method of claim 1 wherein the step of providing a solidified layer of the melt within the crucible comprises the step of maintaining the temperature of said crucible at a temperature below the solidification temperature of the melt.
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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) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |