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| Number | Title | Issue Date |
| 6398035 | Maximizer for gravity separators A gravity separator with improved efficiency comprising a gravity table with pins at the feed area and a flow channeler. The pins create space in the bed of material to be separated which increases stratification of the weight fractions. The flow channele... | 06/04/2002 |
| 6216367 | Classifying and air-stratifying gold separator with inclined sequential chute cone array and size-classifying screen A sluice comprising a series of sequential, interconnected chutes, each inverting a stratified slurry, discharges the slurry in each chute over a mesh screen in a subsequent chute and eventually out of the sluice, with each incremental stage designed to t... | 04/17/2001 |
| 5938043 | Centrifugal jig An improved jig screen for a centrifugal jig includes a recovery zone and a stratification zone adjacent to one another. The stratification zone is constructed to prohibit outward radial passage of slurry particles while permitting fluid pulsations to be ... | 08/17/1999 |
| 5392922 | High capacity dry separation apparatus with air-heavy medium fluidized bed A high capacity dry separation apparatus with air-heavy medium fluidized bed having a separation chamber (3) with a fluidized bed above an air distributor (4), a scraper conveyer (2) in the separation chamber (3) having a double-scraper structure made up ... | 02/28/1995 |
| 5301811 | Apparatus for the separation of grain material and the sorting out of heavy inclusions from grain material An apparatus for separating grain material and for sorting out heavy inclusions from a product flow, particularly stones from gain material, in which the product flow is fed to an inclined layering table and guided so as to be substantially layered thereo... | 04/12/1994 |
| 5244099 | Apparatus and method for improving density uniformity of a fluidized bed medium, and/or for improved material fluidized bed sorting An apparatus for providing a fluidized bed to effect the separation of a mixture of articles having at least a first density and a second density that is greater than the first density into separate groups. The apparatus includes an inclined trough which ... | 09/14/1993 |
| 5230797 | Centrifuge bowl with attached cast inner liner A centrifuge bowl of the type having a shell including a peripheral wall and a cast inner liner attached to the inside surface of the peripheral wall is modified by the provision of a plurality of punched channel portions which extend inwardly into the bo... | 07/27/1993 |
| 5183161 | Process and apparatus for separating grain mixture Process and apparatus for separating grain mixture, e.g. for separating heavy inclusions, such as stones (28), from grain product, in which the product is guided via an inclined oscillating layering table surface, through which air flows, so as to be subs... | 02/02/1993 |
| 5148921 | Pneumatic separation of particulate material The invention relates to apparatus for the pneumatic separation of particulate material particularly but not solely for the separation of objectionable material such as stem from cut lamina or cut rolled stem tobacco (CRS). Apparatus for the pneumatic sep... | 09/22/1992 |
| 5048693 | Method and apparatus for sorting articles with small density differences utilizing a flotation stream A method and apparatus for sorting articles with small density differences utilizing a flotation stream. A separator is provided in which a flotation stream continuously flows through a trough and is used to effect the separation of a mixture of articles ... | 09/17/1991 |
| 4865722 | Method and apparatus for separation using fluidized bed A separator suitable for processing agriculture products in a fluidized bed flowing through an inclined trough under the influence of gravity. The fluidization medium is recirculated from the output end of the trough back to the input end thereof using a ... | 09/12/1989 |
| 4861464 | Method and apparatus for separation using fluidized bed A gas is forced upwardly through a fluidization medium, such as sand, producing a fluidized bed which flows under the influence of gravity through an inclined trough. The separation of the side walls of the trough decreases in the direction of flow of the... | 08/29/1989 |
| 4857177 | Dry separation of solids Mixed scrap metal pieces 6 are sorted in a fluidised hindered settler containing sand, through which the pieces settle at a differential rate. The sand is fluidised by air from 20 and vibration-driven around a circular trough 2. A depthwise partition 14a ... | 08/15/1989 |
| 4776833 | Centrifugal separator A centrifugal separator for use for example with the extraction of gold of the type comprising a bowl with a plurality of rings on the inner peripheral surface between which are provided openings for the injection of water between the rings into the inter... | 10/11/1988 |
| 4772384 | Jigging method and apparatus for gravity separation in the fine and finest particle size ranges In jigging for purposes of gravity separation of material to be concentrated the material is sorted into a heavy fraction which is withdrawn through a screen (2) and a light fraction withdrawn above the screen (2), by periodically passing flows from the b... | 09/20/1988 |
| 4673491 | Process and apparatus for the centrifugal separation of fine-grain mineral mixtures Separating elements (14) arranged about a central shaft (1a) rotate in common about the main axis (A) and individually about their longitudinal axes (B). A centrifugal distributor (6) distributes fine-grain mineral mixture mixed with fluid uniformly to th... | 06/16/1987 |
| 4608040 | Centrifugal separator A centrifugal separator of the type comprising a bowl which is rotated about its axis and which has on the inner surface of the peripheral wall, a plurality of axially spaced radially extending rings and in between the rings, a plurality of openings throu... | 08/26/1986 |
| 4574046 | Centrifugal jig for ore beneficiation A centrifugal jig to beneficiate ore by separating a heavier particulate fraction from a lighter particulate pulp. The jig provides a rotor with a vertical cylindrical jig screen rotating in a fluid filled hutch to support a vertical jigging bed. The jigg... | 03/04/1986 |
| 4466542 | Separating contrivance for cereals A separating contrivance for separating cereals and similar grain product into at least three grain fractions and heavier impurities comprises two air-penetrable fluidized bed tables (2, 3) arranged one over the other and supported in fashion capable of b... | 08/21/1984 |
| 4452581 | Cooking utensil A cooking utensil comprising a pan with a flat bottom and vertical side means formed integrally with said bottom, and an array of evenly spaced substantially uniform holes formed in a portion of said bottom to provide a food extrusion area, the remaining ... | 06/05/1984 |
| 4326635 | Apparatus for refining ore This disclosure relates to a refining apparatus which incorporates an updraft passing through a surface, which surface has permeable and impermeable regions, in combination with a vibrator, to serve as a device to fluidly suspend a mixture of materials ab... | 04/27/1982 |
| 4294693 | Air flotation ore enriching apparatus Virgin ore in granular form is enriched by air flotation classification separating at least a large part of the gangue. Suspension of the ore is effected immediately as supplied to the inlet section of the classification trough by copious upward flow of a... | 10/13/1981 |
| 4282091 | Peanut separator This application discloses a separator for separating granular materials according to specific weight including an air permeable reciprocatory deck for supporting a bed of the granular material thereon and defining an elongate discharge opening therefrom ... | 08/04/1981 |
| 4280903 | Apparatus for separating sand from botanical fines A mixture of botanical fines and sand is separated by a porous separating medium horizontally disposed within an enclosed chamber in which an upflowing stream of gas carries out the separation. The porous separating medium is comprised of a pair of oppose... | 07/28/1981 |
| 4279741 | Method and apparatus for centrifugally separating a heavy fraction from a light weight fraction within a pulp material A centrifugal jig receives a pulp material within a rotating cylindrical jig bed for the purpose of separating the pulp into a selected heavy fraction and a lightweight fraction. The jig bed is cylindrical. It is rotated to produce an outward centrifugal ... | 07/21/1981 |
| 4278537 | Apparatus for separating heavy solids and light solids from a mixture thereof An apparatus for separating a mixture of heavy particulate material and light particulate material into separate fractions of heavy and light material is disclosed. The mixture is introduced to a first separating means, particularly an air jig, with a vib... | 07/14/1981 |
| 4216080 | Method and apparatus for separating sand from botanical fines A mixture of botanical fines and sand is separated by a porous separating medium horizontally disposed within an enclosed chamber in which an upflowing stream of gas carries out the separation. The porous separating medium is comprised of a plurality of p... | 08/05/1980 |
| 4056464 | Mineral jigs A mineral jig for use in treatment plants for the concentration of heavy minerals e.g. cassiterite, gold, platinum, garnet, pyrites and magnetite includes a container for water comprising an upper substantially cylindrical portion and a lower frusto-conic... | 11/01/1977 |
| 4035288 | Fluidized bed seed separator A bed of fluidized material is used to separate seeds on the basis of specific gravity. The bed may be a rotating annulus and it may have one or more layers of micro-balls at the bottom. Means for rotating the annulus and various discharge means are discl... | 07/12/1977 |
