Class 209/243 - Feeding

Subclass of Class 209 - Classifying, separating, and assorting solids
Definition: Means and methods for feeding material to sifting devices.
No. of patents: 35
Last issue date: 08/11/2009

Number	Title	Issue Date
7571816	Adjustable coal screening apparatus A screening and sorting assembly for coal particles includes a bin for receiving crushed coal. The bin is provided with a weir over which the coal particles are passed onto a pivoted screen assembly having a plurality of openings therethrough for sorting the coal pa...	08/11/2009
7347111	Segregation testing apparatus for powders and granular materials A method and apparatus enables testing of sifting segregation of a particulate solid mixture in a storage bin or hopper. The apparatus makes use of a convergently and divergently angled hopper for collecting the mixture. The apparatus further makes use of a minimall...	03/25/2008
7198156	Dam basket for vibratory separators A vibratory separator and a screen mounting basket for a vibratory separator for separating components of material introduced into the basket, the vibratory separator including a collection receptacle beneath the basket, at least one screen assembly mounted in the b...	04/03/2007
7175027	Shaker screen and clamping system A screen assembly, holding apparatus for it, and a vibratory separator with it, the vibratory separator, in one aspect, for separating components of material introduced thereto, the vibratory separator including a basket, a collection receptacle beneath the basket, ...	02/13/2007
7168569	Vibratory screening machine for earth drilling installation An oil and gas drilling installation having a drill rig with a bell nipple having an outlet at a predetermined elevation, a screening machine having a feeder and an angularly adjustable vibratory frame, a weir positioned between the feeder and the vibratory frame, t...	01/30/2007
7111739	Wet fine particle sizing and separating apparatus A particle sizing and separating apparatus is disclosed. The apparatus includes a base and a frame that is movably connected to the base. A motor assembly is provided to vibrate the frame and at least two screens are connected to the frame. Means also are provided f...	09/26/2006
7021469	Apparatus for feeding particulate products to a user machine An apparatus (1) for feeding a user machine (3) with particulate products, such as products for infusion like tea, chamomile and herbal teas in general, comprises a hopper (2) for dispensing the product and means (40; 7) for transferring ...	04/04/2006
7011217	Apparatus for separating coarse grain and fine grain An apparatus is proposed for separating coarse grain and fine grain with a screen (1) made of screen bars (3) which are situated successively adjacent to one another and slope downwardly in the conveying direction (2) of the coarse grain and wit...	03/14/2006
7004332	Articulating disc screen apparatus for recyclable materials A disc screen apparatus for classifying a stream of mixed recyclable materials of various sizes and shapes, including newspaper, clean mixed paper, magazines, plastic bottles, glass bottles and jars, cans, and the like. The apparatus has an inclined fixed first disc...	02/28/2006
7000777	Vibratory separator screens Screen assemblies for a vibratory separator, the screen assemblies in certain aspects having at least two screening members, the at least two screening members connected by sewing material, and methods for making such screen assemblies. ...	02/21/2006
6938779	Screen assembly for a shale shaker A screen assembly for a shale shaker comprising a panel and a support structure, the panel having an area provided with a multiplicity of apertures and at least one layer of screening material arranged over the multiplicity of apertures, wherein said panel is remova...	09/06/2005
6935511	Centrally supported screen assembly A vibratory separator having a basket with a first side spaced-apart from a second side, screen assembly apparatus mounted in the basket, the screen assembly apparatus having a central portion, a first screen side and a second screen side, central support apparatus ...	08/30/2005
6932883	Screens for vibratory separators A method for making a screen assembly for a vibratory separator, the method including, in at least certain aspects, gluing together with glue at least two layers of fine screening material, allowing the glue to set, preheating the glued together at least two layers ...	08/23/2005
6348130	Variable pressure screening Pressure type screening apparatus for screening papermakers' stock and method of use is disclosed. Screen (20) has an inlet screening surface (23) and an outlet surface (unlabled). Pressure transducers (not shown) vary the fluid pressure on the inlet surf...	02/19/2002
6129216	Particle separation device and processes thereof An article including; a support member with a plurality of apertures therethrough; and a plurality of gate members attached by at least one end to at least one side of the support member, wherein each gate member is situated in close proximity to at least...	10/10/2000
5887726	Coupling for connecting feed spout to screening machine A coupling for directing a stream of particles falling from a feed spout through an opening on the top cover of the screen box of a screening machine. An upper diaphragm seals the feed spout within the mouth of a funnel. A lower diaphragm seals the funnel...	03/30/1999
5501343	Soil feeding apparatus with interruptor and method An improved soil feeder system in combination with a soil separating apparatus and method of controlling the feeding of soil material employing the soil feeder. The soil feeder apparatus includes a hopper body to receive soil material and an opening at on...	03/26/1996
5244098	Material separating apparatus and method An improved separating apparatus for separating a feed material into coarse material and a finer material. The separating apparatus includes a frame with a tall and short end, vibratory separating screen or rods as a separating surface within the frame, a...	09/14/1993
5232098	Screening apparatus for efficiently separating coarse material from finer material The screening apparatus for efficiently separating coarse material from finer material, comprises a frame having a lower portion for resting on a surface, and a higher portion; a vibrating screen unit including a first material separating screen having a ...	08/03/1993
5230431	Vertical screening device with feeding screw A vertical screen device for a separator is disclosed. The screening device comprises a vertical cylindrical screen with a feed screw housed within the screen and cooperating with the screen. The feed screw is caused to rotate while the screen is held sta...	07/27/1993
5100539	Dual-screen particle sizing apparatus and method An apparatus and method for sizing and separating particles of a material. The apparatus includes a stand, a frame having a pair of ends and an intermediate portion, and suspension assemblies attached to the stand and the frame for movably suspending the ...	03/31/1992
4957618	Vertical screening device Vertical screening device (1) having at least one cylinder screen (2) and connectible with its lower end portion (8) to a similar screening device or a drive unit and, with its upper end portion (7), to a similar screening device or a distributor device. ...	09/18/1990
4956078	Feed prestratification attachment for high efficiency vibratory screening A feed prestratification attachment for classifying materials is configured to be secured to a vibrating screen unit so as to encourage stratification and more even distribution of the incoming feed material. The attachment includes a pair of side adapter...	09/11/1990
4814071	Flexible connector for screening machine A flexible connector for screening machines comprises an assembly of a plurality of generally cylindrical, flexible collars. Each collar has an annular endwise bead on a first circumferential end and an annular endwise opening groove within an endwise sur...	03/21/1989
4755286	Split flow `V` screen A paper pulp processing mechanism and method for screening large flows of wood chips including a screening bed for receiving a delivery of a quantity of wood chips at a screening receiving station, the flow of chips dividing to flow laterally in one direc...	07/05/1988
4533469	Grass seed from stem remover An elongated, inclined sieve frame is provided and the frame includes a plurality of elongated transversely extending and transversely corrugated sheet metal sections arranged in laterally spaced parallel relation in an inclined plane extending lengthwise...	08/06/1985
4502951	Suction device for obtaining dust samples Suction device for obtaining dust samples of nearly homogeneous grain sizes and with a reproducible bulk density for the analysis of ores. The device, which is suitable for use during the mining of ores, includes a cylindrical casing, having an opening at...	03/05/1985
4498981	Vibrating anti-blinding cleaning and grading machines An anti-blinding grain, seed and like particulate cleaning and grading machine includes a gyrating support frame assembly, and mechanism for vibrating the assembly. Horizontally inclined opposed guide members extend along the side members of the assembly ...	02/12/1985
4495065	Vibratory screening apparatus and method A vibratory screening machine for separating particles from fluid includes a fine mesh screen located within a vibratory basket. The machine further includes a supply for delivering fluid having the entrained particles from a source thereof towards the sc...	01/22/1985
4462900	Centrifugal pulp screening device and method A centrifugal pulp screen device including a perforate wall cylindrical screen, an outer enclosing housing, a centrally located stock supply conduit and a distributor for the stock including an annular distribution slice opening having a fixed lower lip a...	07/31/1984
4269703	Screening machine A screening machine in which screens or portions of screens of elastic material and having substantially the shape of conical frustums are arranged one below the other. The circular edges of the screens are supported by holders which are mounted to a rota...	05/26/1981
4229285	Dust removal in an opening and cleaning apparatus for fibrous materials In the opening and cleaning of fibrous materials apparatus is provided which includes a plurality of rotatable beaters within a housing, curved under grids beneath each rotatable beater, baffle plates above and between the beaters, a perforated screen pos...	10/21/1980
4224146	Sifting machines In a sifting machine having a driven vibratory screen assembly comprising a so-called sifting basket of which a screen forms the base, the screen is releasably located by a plurality of spaced bars which extend across the screen and project at their ends ...	09/23/1980
4172028	Fine particle separation by electrostatically induced oscillation The classification of small particles is performed by utilizing the oscillation of particles as they pass through electric fields. The apparatus utilizes vertically spaced sieve electrodes which are at the same or at a different potential as a particle ch...	10/23/1979
4018009	Vibratory finishing device A finishing device in the form of an annular bowl adapted to house media and parts to be finished and means for imparting vibratory energy to the bowl to cause the media and parts to progress in agitated movement about the bowl, means for unloading the pa...	04/19/1977

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Class 209/243 - Feeding