US3748070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for preparing pellets from a melt
Assignee: Leybold Heraeus Verwaltung GmbH
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Filing: 1971-07-12
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Granted: 1973-07-24
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Expires: 1991-07-12
Abstract
Abstract Auxiliary improved apparatus operable under a vacuum or under a blanket of an inert gas, wherein a melt container is provided accommodating a molten liquid metal under the influence of at least one generator for electrically charged particles, having means dividing the melt into two areas so as to prevent imbalence in the melt, and moving means for collecting the resultant refined metal droplets from the container.
Inventors
- 👤 J Heimerl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:17
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
111 words
Apparatus for preparing pellets by melting a starting material in a protective atmosphere and by subsequently solidifying individual drops of the melt, comprising at least one generator of beams of charged particles, a feeding device, a melt container under the range of the generator provided with a dripping arrangement, and a cooling surface located below said dripping arrangement characterized in that said melt container is provided within effective range of the melt surface, a cooling body for said melt container, and means dividing the melt puddle into two zones, said material being fed to one side of the cooling body and the dripping arrangement being located on the other side thereof.
Claim 2
Dependent Claim
111 words
Apparatus for preparing pellets by melting a starting material in a protective atmosphere and by subsequently solidifying individual drops of the melt, comprising at least one generator of beams of charged particles, a feeding device, a melt container under the range of the generator provided with a dripping arrangement, and a cooling surface located below said dripping arrangement characterized in that said melt container is provided within effective range of the melt surface, a cooling body for said melt container, and means dividing the melt puddle into two zones, said material being fed to one side of the cooling body and the dripping arrangement being located on the other side thereof.
Claim 3
Dependent Claim
51 words
Apparatus according to claim 1, wherein said cooling body is a cooling pipe with cooling liquid flowing through said pipe, the axis of the pipe bEing parallel to the surface of the melt and transverse to the direction of melt flow, said pipe being at least partly wetted by the melt.
Claim 4
Dependent Claim
23 words
Apparatus according to claim 2, characterized in that a distance ''''a'''' of the cooling body from the dripping arrangement is capable of adjustment.
Claim 5
Dependent Claim
42 words
Apparatus according to claim 1, characterized in that a bulge-shaped projection is located on the bottom of the melt container and passed by a cooling medium the projection extending transversely to the flow direction up to adjacent highest possible level of liquid.
Claim 6
Dependent Claim
57 words
Apparatus according to claim 1, wherein there is a plurality of generators disposed above the melt container and being in spaced relation with each other, and said melt container having a grooved exit portion to permit the resultant melt to exit therefrom in the form of molten metal droplets, and cooling rotating means for collecting said droplets.
References Cited (Backward Citations)
US3646175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |