| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Procedure and apparatus for separating heavy particles of material from lighter ones | EP96202551.6 | 1996-09-12 | EP0763383B1 | 2001-11-14 | Raura, Pentti |
| 22 | Procedure and apparatus for separating heavy particles of material from lighter ones | EP96202551.6 | 1996-09-12 | EP0763383A3 | 1997-12-17 | Raura, Pentti |
Procedure for separating heavy particles of material from lighter particles, e.g. for separating impurities from powdery or fragmental material, such as fibres or chips, in which procedure the material (2) to be treated is supplied onto a carrier surface (1) pervious to gas and gas impacts (P) are applied to the material through the carrier surface (1), causing the heavier particles to move closer to the carrier surface (1). The carrier surface (1) is mainly moved in one direction of movement to move the heavy particles (R) and the lighter particles (K) are passed, mainly by the agency of the inclination of the Carrier surface (1) and/or the gas flow, in a direction substantially differing from the principal direction of movement of the carrier surface (1). The invention also relates to an apparatus implementing the procedure. |
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| 23 | Air sifting apparatus | US09775758 | 2001-02-01 | US06467631B2 | 2002-10-22 | Walter Strangalies; Walter Jungmann; Richard J. Snoby |
| An air sifting apparatus is provided for preparatory concentration of raw material including coal, and includes a material feed-in device, a material bed support device, an air jig plenum, and a discharge control device. The material bed support device receives material from the material feed-in device and has a surface having a plurality of openings for a gaseous medium introduced from underneath the material bed support device, which is operable to transport material in coordination with the flow of gaseous medium through the openings to effect loosening and stratification of the material into a layer of relatively heavier material, and a layer of relatively lighter material on the heavier material. The air jig plenum communicates with the underside of the apparatus for guiding gaseous medium thereto and produces constant air flow through the openings of the support device and a pulsating air flow, overlaid on the constant air flow, for pulse impacting material on the support device. The discharge control device controls discharge of material from the support device such that relatively lighter material is directed to one location and relatively heavier material is directed to another location. | ||||||
| 24 | Portable apparatus for the recovery of placer gold | US738234 | 1985-05-28 | US4642180A | 1987-02-10 | Norman H. Kaufman |
| The present invention relates to an improved portable lightweight apparatus for the separation of gold and similar metals from pulverized ore, sand, debris and the like. More particularly, the invention is a portable lightweight apparatus which uses currents of air to separate gold from sand and debris, in which the apparatus includes in combination a frame, an optionally detachable screen rack, an optionally detachable hopper, an inclined riffle board which contains holes through which air currents jet and an attached bellows to provide the currents of air to separate the gold particles from the debris, and a means to operate the bellows one side of which is in combination with the riffle board and a means to operate the bellows. In one instance, one solid side of the bellows is the bottom of the riffle board. | ||||||
| 25 | Pneumatic separator and classifier apparatus and method | US3424309D | 1965-12-07 | US3424309A | 1969-01-28 | BINNIX WILLIAM B |
| 26 | Concentrator | US76210258 | 1958-09-19 | US3007577A | 1961-11-07 | PUTMAN WILLIAM T |
| 27 | Method and apparatus for sonic separation of minerals | US36905053 | 1953-07-20 | US2755927A | 1956-07-24 | BROOKS GEORGE C |
| 28 | Movable deck pneumatic coal cleaner | US72822447 | 1947-02-13 | US2513960A | 1950-07-04 | ORE CARL V |
| 29 | Pneumatic coal cleaner | US71134046 | 1946-11-21 | US2512422A | 1950-06-20 | FLETCHER JAMES H; TREADWELL HARRY A; WALLACE GEORGE W |
| 30 | Apparatus for dedusting and cleaning coal and the like | US27039139 | 1939-04-27 | US2291661A | 1942-08-04 | EARL STUMP |
| 31 | Apparatus for separating material | US73305334 | 1934-06-29 | US2245942A | 1941-06-17 | EARL STUMP |
| 32 | Ore-concentrator. | US1904334599 | 1904-02-17 | US847236A | 1907-03-12 | CAMPBELL ALONZO CLARENCE |
| 33 | Jig or ore-concentrator. | US1903301633 | 1903-09-19 | US824623A | 1906-06-26 | CAMPBELL ALONZO C |
| 34 | Ore-concentrator. | US1901070135 | 1901-07-29 | US775945A | 1904-11-29 | STEBBINS ALBERT H |
| 35 | Machine for separating ores. | US1898666769 | 1898-01-15 | US686741A | 1901-11-19 | KROM STEPHEN R |
| 36 | Ore-concentrator | US448961D | US448961A | 1891-03-24 | ||
| 37 | Dry ore concentrator | US417476D | US417476A | 1889-12-17 | ||
| 38 | Concentrator | US373600D | US373600A | 1887-11-22 | ||
| 39 | Dry-ore separator | US278160D | US278160A | 1883-05-22 | ||
| 40 | Improved ore-separator | US101132D | US101132A | 1870-03-22 | ||
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