Patent US3752610A successfully refreshed from Google Patents.
US3752610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for producing fine powder of liquid metal
Assignee: Individual
•
Filing: 1972-03-01
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Granted: 1973-08-14
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Expires: 1992-03-01
Abstract
Abstract A device is disclosed for producing fine powder of liquid metal comprising an air-tight chamber which accommodates a nonconsumable and a consumable electrode with the latter being located on two horizontal rolls parallel to each other and connected so as to ensure their synchronous rotation with a rotary gear, the consumable electrode being held tight to the rolls by two rollers one of which is in mesh with the electrode and is connected to a longitudinal feed gear to maintain constant spacing between the consumable and non-consumable electrode.
Inventors
- 👤 L Khrustsevich
- 👤 Y Altunin
- 👤 S Glazunov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:32
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/14; B22F9/06; B22F9/08; B22F9/082; B22F2009/084
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
239 words
A device for producing fine powder from liquid metal comprising: an air-tight chamber; two horizontal rolls mounted in parallel with each other on two supports in said chamber; means for rotating said rolls in one and the same direction; a consumable electrode disposed on said rolls and in rotation therewith; a nonconsumable electrode disposed in said chamber so that one of its ends is spaced apart from one end of said consumable electrode and arcing means for producing an electric arc between these ends of said nonconsumable electrode and said consumable electrode; first fixture means and second fixture means for holding said consumable electrode tightly to said rolls and located along the length of said consumable electrode so that said first fixture means is in close proximity to said electric arc, said second fixture means being remote from said electric arc and in mesh with the consumable electrode to rotate in conjunction with said consumable electrode; means for longitudinally feeding said consumable electrode coupled with said second fixture means for maintaining constant distance between said consumable and nonconsumable electrodes so that during gradual melting of said consumable electrode under the action of said arcing means particles of said liquid metal of uniform shape come off said one end of said consumable electrode under centrifugal force provided by the rotation of said consumable electrode and thereby solidify to form said fine powder; and means for collecting said fine powder produced.
Claim 2
Independent Claim
239 words
A device for producing fine powder from liquid metal comprising: an air-tight chamber; two horizontal rolls mounted in parallel with each other on two supports in said chamber; means for rotating said rolls in one and the same direction; a consumable electrode disposed on said rolls and in rotation therewith; a nonconsumable electrode disposed in said chamber so that one of its ends is spaced apart from one end of said consumable electrode and arcing means for producing an electric arc between these ends of said nonconsumable electrode and said consumable electrode; first fixture means and second fixture means for holding said consumable electrode tightly to said rolls and located along the length of said consumable electrode so that said first fixture means is in close proximity to said electric arc, said second fixture means being remote from said electric arc and in mesh with the consumable electrode to rotate in conjunction with said consumable electrode; means for longitudinally feeding said consumable electrode coupled with said second fixture means for maintaining constant distance between said consumable and nonconsumable electrodes so that during gradual melting of said consumable electrode under the action of said arcing means particles of said liquid metal of uniform shape come off said one end of said consumable electrode under centrifugal force provided by the rotation of said consumable electrode and thereby solidify to form said fine powder; and means for collecting said fine powder produced.
Claim 3
Dependent Claim
95 words
A device as claimed in claim 1 in which said longitudinally feeding means comprises a kinematically interacting nut and screw member, wherein a roller is rigidly connected to said nut by a first lever means, said nut also being connected through a second lever means to a crank gear so that said screwed member acts as a pivotal axis when said crank gear turns the second lever means to either force the roller against the consumable electrode or withdraw said roller from a consumed electrode when a further consumable electrode is introduced onto said rolls.
Claim 4
Dependent Claim
62 words
A device as claimed in claim 2 in which that end opposite to said one end of said consumable electrode is secured in a cylindrical holder the exterior of which has an annular groove having side walls, said roller being provided with a flange on its external surface, said flange engaging said groove, thereby interacting with the side walls of the groove.
Claim 5
Dependent Claim
60 words
A device as claimed in claim 1 wherein the top portion of said air-tight chamber is provided with an inclined platform for accommodating spare consumable electrodes, and wherein distributing gear means and guide means are provided at the lower edge of said inclined platform for delivering further ones of said spare consumable electrodes from saiD inclined platform onto the rolls.
Claim 6
Dependent Claim
38 words
A device as claimed in claim 3 in which said air-tight chamber is provided with ejector means for ejecting said cylindrical holder containing an unmelted portion of said consumable electrode, into said bottom portion of said air-tight chamber.
References Cited (Backward Citations)
US3041672A
Cited
US3275787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |