Patent US3821979A successfully refreshed from Google Patents.
US3821979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron-beam furnace for remelting electrodes
Assignee: Individual
•
Filing: 1972-12-11
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Granted: 1974-07-02
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Expires: 1992-12-11
Abstract
Abstract An electron-beam furnace for remelting metals in vacuum to produce an ingot has a chamber with a melting zone, a crystallizer and a mechanism bearing ingot supports and sleeves provided with a drive for their rotation around a vertical axis and also for their vertical movement. The mechanism includes a column having a carriage carrying oppositely mounted assemblies each including a pair of elements consisting of a bar sleeve and an ingot support and having a sealing valve common for each pair of elements; the axes of the ingot supports, sleeves, crystallizer and the axes of the means for feeding the bar into the melting zone are spaced equidistantly from the axis of rotation of the mechanism said above.
Inventors
- 👤 G Sergeev
- 👤 P Kucherenko
- 👤 P Gostry
- 👤 A Baranov
- 👤 O Zaika
- 👤 V Timashov
- 👤 G Asoiants
- 👤 A Sapko
- 👤 V Topilin
- 👤 L Kosyrev
- 👤 A Tjulkin
- 👤 V Nakhabin
- 👤 V Kultygin
- 👤 B Movchan
- 👤 A Tikhonovsky
- 👤 J Krivosheykov
- 👤 L Ljubarets
- 👤 B Paton
- 👤 I Pryanishnikov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:42
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/16; C22B9/22; C22B9/228; B; B22; B22D; B22D27/00; B22D27/15; H; H05; H05B; H05B7/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
246 words
An electron-beam furnace for remelting a bar of a metal or an alloy into ingots, in vacuum or in a protective atmosphere comprising: a chamber having a melting zone for melting a metal bar; a cooled crystallizer for forming an ingot out of molten metal from said metal bar, said crystallizer being arranged in said chamber; means for feeding the bar to be remelted into the melting zone, said means extending into said chamber; a prechamber communicating with said chamber for melting the metal bar; a mechanism for transporting the metal bar from said prechamber tOwards said means as well as for moving the ingot from said crystallizer towards said prechamber, said mechanism having an axis and including a turnable column having an axial cavity, said column having a longitudinal guide slot; a carriage mounted on said column; a rod arranged in the cavity of said column; a carrier inserted into the slot of said column and a hinge connecting said rod with said carriage, said carriage carrying on diametrically opposite sides thereof assemblies disposed at opposite ends of said column, each of said assemblies including a pair of elements consisting of a sleeve and a support member and having a sealing valve common for each said pair for sluicing said support member and sleeve in said prechamber, the axes of said support members, sleeves, crystallizer and means for feeding the metal bar being spaced from the axis of rotation of said mechanism at equal distances.
Claim 2
Dependent Claim
246 words
An electron-beam furnace for remelting a bar of a metal or an alloy into ingots, in vacuum or in a protective atmosphere comprising: a chamber having a melting zone for melting a metal bar; a cooled crystallizer for forming an ingot out of molten metal from said metal bar, said crystallizer being arranged in said chamber; means for feeding the bar to be remelted into the melting zone, said means extending into said chamber; a prechamber communicating with said chamber for melting the metal bar; a mechanism for transporting the metal bar from said prechamber tOwards said means as well as for moving the ingot from said crystallizer towards said prechamber, said mechanism having an axis and including a turnable column having an axial cavity, said column having a longitudinal guide slot; a carriage mounted on said column; a rod arranged in the cavity of said column; a carrier inserted into the slot of said column and a hinge connecting said rod with said carriage, said carriage carrying on diametrically opposite sides thereof assemblies disposed at opposite ends of said column, each of said assemblies including a pair of elements consisting of a sleeve and a support member and having a sealing valve common for each said pair for sluicing said support member and sleeve in said prechamber, the axes of said support members, sleeves, crystallizer and means for feeding the metal bar being spaced from the axis of rotation of said mechanism at equal distances.
Claim 3
Dependent Claim
54 words
A furnace in accordance with claim 1, wherein an imtermediate vessel is provided for feeding the liquid metal produced during the metal bar melting into said crystallizer, said vessel being mounted on a rod associated with a drive provided to turn said vessel around a horizontal axis and moving said vessel along this axis.
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) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |