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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7428971 | Method for sorting and recovering fine particle and apparatus for recovery The present invention provides a fine-particle sorting technique that uses optical pressure (optical force) and that can be applied in place of heretofore known cell sorting techniques; and a fine-particle recovering technique therefor. The fine-particle recovering ... | 09/30/2008 |
| 7404492 | Separation of fibre pulp suspensions containing relatively heavy contaminants A hydrocyclone unit for separating a fibre pulp suspension containing relatively heavy contaminants has an elongate tapering separation chamber, an inlet member that feeds the suspension tangentially into the separation chamber at a base end, so as to form a vortex ... | 07/29/2008 |
| 7404490 | Continuous particle separation apparatus The present invention relates to an improved apparatus and method for assembly for a cylindrical split-flow thin separation channel that is capable of continuously separating particles of interest from a suspension flowing through the channel. The apparatus provides... | 07/29/2008 |
| 7360655 | Material handling system having a scoop wheel A material handling system is provided. The material handling system includes a tank defining a reservoir for receiving a solid material, and a wheel including a plurality of circumferentially spaced apart scoops for scooping solid material from the tank and subsequ... | 04/22/2008 |
| 7357259 | Material classifier having a scoop wheel A material classifier for classifying a liquid-solid mixture containing solid material to be separated is provided. The material classifier includes a tank defining a reservoir for receiving the liquid-solid mixture, and a scoop wheel including a plurality of circum... | 04/15/2008 |
| 7341154 | Water bath separator A water bath separator includes a tank for receiving a volume of water for forming a water bath having a top water surface and a light material conveyor path extending from the tank such that an upstream end of the light material conveyor path is closely below the t... | 03/11/2008 |
| 7328809 | Solvent extraction method and apparatus A weir assembly for use with a mixer-settler for liquid-liquid extraction includes in one embodiment an organic weir having an inlet opening below the free surface of the organic phase liquid and a vertically-adjustable front wall allowing adjustments in the positio... | 02/12/2008 |
| 7205158 | Method for aspiration of a liquid sample A liquid aspiration method which includes aspirating partial aliquots of liquid at a number of different depths of penetration of a pipette tip into a liquid. The different depths are selected so that partial aliquot segments are obtained throughout the entire depth... | 04/17/2007 |
| 7147111 | Hindered-settling fluid classifier A hindered-settling fluid classifier is adapted for processing aggregate entrained in a flowing slurry. The classifier includes a classifier tank defined by walls, and having an inlet at its upstream end and an outlet at its downstream end. A slurry feed pipe is con... | 12/12/2006 |
| 7090777 | Aggregation precipitation method The present invention has an object to provide a compact aggregation precipitation method and an apparatus therefor which prevent the outflow of flocs and do not deteriorate the turbidity elimination performance even in start-up early stages. As the means to accompl... | 08/15/2006 |
| 7052611 | Device for solid phase extraction and method for purifying samples prior to analysis A solid phase extraction (SPE) device having a reservoir with an opening; a well comprising an internally tapered wall, the well having a wider interior diameter at an end closest to the opening than at an exit spout; a first filter within the well; a bed of sorbent... | 05/30/2006 |
| 6827221 | Mill classifier A mill classifier, particularly a roller mill classifier, has a strip rotor and a concentrically arranged guide vane ring with flow-optimized guide vanes and flow channels for a parallel incoming and outgoing flow without constriction or with widening and a diffuser... | 12/07/2004 |
| 6695147 | Absorption-enhanced differential extraction device This invention provides an extraction device and a method for extracting desired particles from a sample stream containing the desired particles. The device has a sample stream inlet, an extraction stream inlet, and an extraction channel in fluid communic... | 02/24/2004 |
| 6666338 | Device for the separation of solid objects from a flowing fluid A device for the separation of solid objects (9) from fluid flowing in a conduit tube (2) includes a housing that includes a tubular outer wall (3) and a tubular inner wall (4). Between these is delimited a collecting space (8). Concentrically relative to... | 12/23/2003 |
| 6273262 | Particle concentration device A device comprises a means for radiating ultrasound from one face of a chamber holding a sample solution containing particles to be concentrated, and a reflective face inclined to the face irradiated with the ultrasound. The frequency of the ultrasound ra... | 08/14/2001 |
| 6193070 | Apparatus for separating solids drilling fluids A solids separation system may be used to separate solids, such as cuttings from drilling fluids used in well drilling operations. The system includes a settling tank having transverse baffles defining a fluid receiving chamber, a fluid output chamber and... | 02/27/2001 |
| 6156083 | Coal reclamation systems A method for recovering coal from a mixture containing fine particles of coal, the mixture including fine coal particles, water, and impurities, the method including feeding the mixture to a first liquid/solid separator that removes relatively large piece... | 12/05/2000 |
| 6142311 | Process for controlling a sand and gravel sorting and sizing device In a process for controlling the product composition in an apparatus for sizing and sorting mineral raw materials, wherein the apparatus comprises at least one chamber, a sizing separation of the sand fraction into a sand product mass and into a micro par... | 11/07/2000 |
| 6073709 | Selective apparatus and method for removing an undesirable cut from drilling fluid A skid mounted first and second stage centrifuges, each being provided with an input pump. Drilling mud is delivered to the first pump, the first stage and then into a tank for storing temporarily the liquids separated from the mud. The heavier weight com... | 06/13/2000 |
| 6036028 | Apparatus for separating off light materials from sand and gravel An apparatus for separating out light materials from mineral raw materials is provided. The apparatus includes a charging device that has a charging tube provided with an eccentrically arranged inlet for tangential introduction of raw material. The appara... | 03/14/2000 |
| 6030532 | Solid-liquid separator and filter This centrifugal apparatus comprises a primary frusto-conical filter screen rotating about a vertical axis, which is closed at its smaller diameter end and which is surrounded at its larger diameter upper end by a flat horizontal imperforate ring. A secon... | 02/29/2000 |
| 5971158 | Absorption-enhanced differential extraction device This invention provides an extraction device and a method for extracting desired particles from a sample stream containing the desired particles. The device has a sample stream inlet, an extraction stream inlet, and an extraction channel in fluid communic... | 10/26/1999 |
| 5957301 | Method and apparatus for the separation of materials having different densities A method and apparatus (10) for separating materials having different size densities is described. The apparatus includes a trough (12), a dispersing and conveying screw means (40) and a fluid distribution manifold (26). The trough has upper and lower por... | 09/28/1999 |
| 5947299 | Hydraulic reactor and classifier for solid particles with ultrasonic application The present invention relates to a hydraulic reactor and classifier, with ultrasonic application for a continuous process of separation and recovering minerals or other type of materials or for the production of chemical compounds. It comprises a body of ... | 09/07/1999 |
| 5915569 | Device for separation and proportioning of different sized objects such as hulls and end pieces originating from cutting irradiated nuclear fuel assemblies A device comprising two coaxial drums (22, 24) is proposed in order to separate and then proportion objects of different sizes. The objects are introduced into one end of the inner drum consisted mainly of a coil (32) wound in a spiral. Large objects are ... | 06/29/1999 |
| 5875899 | Apparatus for classifying objects by sedimentation In an apparatus for classifying objects by sedimentation having a straightening passage, capable of being prevented adhesion of bubbles to the straightening passage, and capable of being prevented a sample supplying error generated caused by a closed samp... | 03/02/1999 |
| 5871103 | Device and process for the separation and classification of particles forming granular product The device (10) includes a cylindrical guiding channel (16) communicating with a lower container (17) formed with two parallel planar walls (21) separated by a distance smaller than the maximum width of the guiding channel. The device is further provided ... | 02/16/1999 |
| 5868256 | Rotary clay material refiner An apparatus for refining clay material having a horizontally oriented rotating drum into which clay material and water are fed. The clay material and water form a slurry which is agitated by lifters within the drum. A series of adjustable lifters within ... | 02/09/1999 |
| 5715946 | Method and apparatus for sorting particles suspended in a fluid An apparatus and method for dispersing particles suspended in a fluid by creating an obstacle field in a region of a conduit or receptacle and causing the fluid to flow through the conduit where the obstacle field has a configuration that causes the parti... | 02/10/1998 |
| 5535892 | Two stage compound spiral separator and method Coal spiral having a relatively short first stage helix for separating a slurry into clean coal, refuse and middlings splits, and a relatively short second stage helix for recleaning middlings split from the first stage. The first stage has only 3.25 turn... | 07/16/1996 |
| 5476177 | Sluice trap A material classification device for separation of solid materials, having a relatively high specific gravity, from a stream of fluid and solid material. The device is particularly suited for the extraction of gold from alluvial material. The device gener... | 12/19/1995 |
| 5401422 | Separation method for solid constituents of a suspension and device for carrying out this method The present invention is a filtration method and device for separating particles of a suspension according to their mass. The invention includes a rotating uncloggable filter. The filter rotates inside of a stationery housing. Separation by particle size ... | 03/28/1995 |
| 5392929 | Method and apparatus for sorting by size Articles, such as apples, to be sorted by size, float in water along a main channel. Depending upon the depths to which the apples penetrate below the surface of the water, the apples may be diverted into one of a plurality of side channels by endless bel... | 02/28/1995 |
| 5366092 | Separation of valuable minerals from material found in the beds of bodies of water A device for removal of solid materials from the beds of bodies of water and the separation and capture of materials having a relatively high specific gravity from lighter solid material. The device is particularly suitable for the extraction of gold from... | 11/22/1994 |
| 5314074 | Method and means for density gradient centrifugation In the performance of density gradient centrifugation back mixing after centrifugation is prevented by placing a snugly fitted layering insert within the vessel. The insert is capable of supporting the body of liquid dispersion to be centrifuged under reg... | 05/24/1994 |
| 5273162 | Method and apparatus for separating material from a fluid A method and apparatus for separating high density materials from less dense materials suspended in a fluid within a conduit. A pump generates carrier fluid motion which is fed through the conduit. Solids from a placer deposit are mixed with the carrier f... | 12/28/1993 |
| 5263590 | Heavy media separation process and apparatus therefor A method and apparatus for making a very precise separation between materials of different specific gravities. A heavy media separation apparatus for separating a heterogeneous mixture of solid particles having different specific gravities, comprising: a ... | 11/23/1993 |
| 5255787 | Lead shot reclamation device and method A lead shot recovery device is disclosed for reclaiming lead shot from a slurry of material taken from lake bottoms. In one embodiment, the device includes a sluice box having an open bottom riffle bed through which can pass a net upward liquid flow. The ... | 10/26/1993 |
| 5202031 | Waste water treatment system Improved techniques are provided for separating mixtures of materials having different densities. The apparatus of the present invention is well suited for separating oil from water, and includes a separation tank defining a cylindrical water storage cham... | 04/13/1993 |
| 5131544 | Device for selectively separating particles in a liquid, in particular for cleaning fibrous paper suspensing A device for separating particles in a liquid in which a paper suspension to be cleaned and supplied to a chamber of revolution (1) rotating about an axis (2). Movable deviators (7, 8) precede the fixed outlets (9, 10) to intercept most of the through-pu... | 07/21/1992 |
