| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 209162000 |
Floating
| 122 |
| 209208000 |
Grading deposition
| 13 |
| 209157000 |
Inclined current | 5 |
| 20090206009 | APPARATUS FOR SEPARATING THE ORGANIC MEMBRANE PORTION AND THE MINERAL PORTION OF BROKEN EGG SHELLS - Apparatus for separating the organic membrane portion and the non-organic mineral portion of broken egg shells includes at least one separating tank into which a slurry of water and finely ground egg shells is introduced. A plurality of overlapping vanes is in the interior of the tank. Separated low specific gravity membrane is withdrawn from near the top of the tank for dewatering and drying; the separated high specific gravity mineral portion is withdrawn from near the bottom of the tank for drying. Water from the dewatering means is returned to the bottom of the tank with sufficient force to cause an upward serpentine flow past the vanes, but not so as to preclude the settling of the mineral portion. | 08-20-2009 |
| 20100243539 | CLASSIFYING METHOD AND CLASSIFYING DEVICE - A classifying device having two or more classifying passages is provided, the classifying device including a first classifying passage to which particle dispersion liquid is fed; plural discharge ports provided in the first classifying passage, the plural discharge ports including a discharge port of coarse particle dispersion liquid and a discharge port of fine particle dispersion liquid; a second classifying passage; and a connecting passage that transports the coarse particle dispersion liquid to the second classifying passage, wherein the discharge port of the coarse particle dispersion liquid is provided in more upstream part of the first classifying passage than the discharge port of the fine particle dispersion liquid. | 09-30-2010 |
| 20110011776 | CLASSIFYING APPARATUS AND METHOD - A classifying apparatus includes: a classifying channel that, in an upper portion, has a channel through which a particle dispersion is transported, and that, in a lower portion, has a channel through which transporting liquid is transported; a particle dispersion introducing channel where one end has an opening into which the particle dispersion is introduced, and another end is connected to the channel through which the particle dispersion is transported; a transporting liquid introducing channel where one end has an opening into which the transporting liquid is introduced, and another end is connected to the channel through which the transporting liquid is transported; and at least one recovery channel as defined herein, a channel width of the channel through which the particle dispersion is transported being smaller than a channel width of the channel through which the transporting liquid is transported, in the classifying channel. | 01-20-2011 |
| 20110017645 | DEVICE FOR CLASSIFYING PARTICLES AND METHOD FOR CLASSIFYING PARTICLES - A classification device includes: a classification channel for classifying particles; a particle dispersion delivery channel as defined herein; a conveying fluid feed channel as defined herein; and at least one collection channel as defined herein, and the particle dispersion delivery channel satisfying relationship (1): | 01-27-2011 |
| 20160144376 | CLASSIFIER - Disclosed herein are embodiments of a classifier ( | 05-26-2016 |
| 209158000 |
Vertical current | 3 |
| 20090250383 | Flotation Method - A flotation method in which a liquid or slurry is fed to a downcomer ( | 10-08-2009 |
| 20150114889 | METHOD OF SEPARATING WORKPIECES FROM CHIPS - There is provided a workpiece separation apparatus permitting input of a mixture of workpieces and chips stably within a flow current and separating them accurately and efficiently. The workpiece separation apparatus includes an input cylinder inserted within a separating container, and a fluid supplying means arranged so as to supply fluid to the separating container from a part lower than a lower end of the input cylinder, and configured such that the fluid overflows and flows out of the upper end of the separating container due to a flow current generated within the separating container, and such that the level of the fluid rises up in the input cylinder and the fluid does not flow out of the upper end of the input cylinder, but is maintained substantially in a resting state and at a level above the level of the upper end of the separating container. | 04-30-2015 |
| 20160129453 | APPARATUS FOR CLASSIFYING PARTICULATE MATERIAL - An apparatus for classifying particulate material includes at least one tank for receiving a feed slurry, a device for introducing water into a lower region of the at least one tank whereby water is caused to flow upwardly and through the feed slurry contained therein, whereby hydraulic separation takes place within the at least one tank with particles of lower settling velocity progressing upwardly and into a device for effecting discharge of an overflow fraction from the at least one tank, and particles of greater settling velocity progressing downwardly to a lower region of at least one tank, wherein the feed slurry is introduced into the at least one tank in an upwards direction. | 05-12-2016 |
| 209156000 |
Horizontal current | 1 |
| 20090057204 | SAND DEWATERING DEVICE AND METHOD - A dewatering device for aggregate products such as sand and gravel to allow dewatering to a moisture within the range of 8% by weight. This energy efficient dewatering system uses an inclined rotatably mounted dewatering screw to initially dewater, followed by an associated vibratory dewatering screen to achieve combined results that neither an inclined dewatering screw or a vibratory screen can achieve separately. | 03-05-2009 |
| Entries |
| Document | Title | Date |
|---|
| 20090050538 | Serpentine structures for continuous flow particle separations - An improved technique for particle separation is provided. A serpentine structure is utilized in a continuous fluid flow environment to allow for suitable separation of particles to occur in a manner that does not require external application of forces to initiate the separation. The geometry of the serpentine structure and associated forces generated in connection with fluid flow therein suffice. | 02-26-2009 |
| 20090283452 | METHOD AND APPARATUS FOR SPLITTING FLUID FLOW IN A MEMBRANELESS PARTICLE SEPARATION SYSTEM - A method and system for splitting fluid flow in an outlet of a particle separation device is provided. The system may include static or passive mechanisms or subsystems. These mechanisms could also be modular and interchangeable to provide for preset fluid split divisions of 20:80, 30:70, 40:60, 50:50, . . . etc. In other forms of the presently described embodiments, the system is adjustable and variable. In still another form of the presently described embodiments, the system allows for differential pressure control at the outlets to facilitate the flow of varying size particles or particle bands in the respective channels or paths. | 11-19-2009 |
| 20100059414 | BUMP ARRAY DEVICE HAVING ASYMMETRIC GAPS FOR SEGREGATION OF PARTICLES - The disclosure relates to obstacle array devices (also known as bump array devices) for separating populations of particles by size. Improvements over previous obstacle array devices are realized by causing the fluid velocity profile across gaps between obstacles to be asymmetrical with respect to the plane that bisects the gap and is parallel to the direction of bulk fluid flow. Such asymmetry can be achieved by selecting the shape(s) of the obstacles bounding the gap such that the portions of the obstacles upstream from, downstream from, or bridging the narrowest portion of the gap are asymmetrical with respect to that plane. Improvements are also realized by using obstacles that have sharp edges bounding the gaps. Other improvements are realized by selecting obstacle shapes such that the critical particle dimensions defined by the gaps in two different fluid flow directions differ. | 03-11-2010 |
| 20100084320 | PROCESS FOR SORTING DISPERSED COLLOIDAL STRUCTURES - A method of separating a mixture of discrete structures dispersed in a fluid material includes identifying a target structure and a non-target structure; providing a custom-shaped particle having at least a portion of a surface that is substantially shape-complementary to a portion of a surface of the target structure; introducing the custom-shaped particle into the fluid material; exciting reconfigurations of the custom-shaped particle with respect to the target structure and the non-target structure; binding the custom-shaped particle to the target structure through an attractive interaction to form an aggregate; and isolating the aggregate containing the target structure and the custom-shaped particle from the non-target structure. The custom-shaped particle preferentially binds with the target structure without binding with the non-target structure. | 04-08-2010 |
| 20100133151 | METHOD AND APPARATUS FOR SORTING PARTICLES - A method and apparatus for sorting particles moving through a closed channel system of capillary size comprises a bubble valve for selectively generating a pressure pulse to separate a particle having a predetermined characteristic from a stream of particles. The particle sorting system may further include a buffer for absorbing the pressure pulse. The particle sorting system may include a plurality of closely coupled sorting modules which are combined to further increase the sorting rate. The particle sorting system may comprise a multi-stage sorting device for serially sorting streams of particles, in order to decrease the error rate. | 06-03-2010 |
| 20100155307 | Method and system for fines management in slurry processes - A method and system is provided for controlling the amount of fines in a three-phase slurry bubble reactor. The method comprises introducing a portion of the slurry into a hydrocyclone adapted to recover in excess of 98 wt % of the coarse catalyst in the underflow stream of the hydrocyclone and to provide an overflow stream containing catalyst fines. The underflow stream is returned to the slurry column while the fines-containing overflow stream is transferred for disposal or further treatment. By providing the hydrocyclone with an underflow stream opening that is greater than the overflow stream opening, slurries containing high solids loading fines are efficiently separated from coarse solids, thereby effectively controlling the fines content in the slurry column. | 06-24-2010 |
| 20100193407 | Device and Method For Particle Manipulation in Fluid - A device for manipulating particles present in a fluid medium is disclosed. The device comprises a planar substrate, formed with at least one primary microchannel to allow passage of the fluid medium therethrough. The primary microchannel(s) has walls and a base and being in fluid communication with a plurality of secondary microchannels via at least one branching point. The device further comprises one or more ultrasound transmission pairs, positioned at opposite sides of the walls to generate ultrasound waves propagating through the fluid medium, substantially parallel to the planar substrate, such as to form a standing wave within the primary microchannel. | 08-05-2010 |
| 20100200472 | APPARATUS AND METHOD FOR SEPARATING MATERIALS - A material separator for separating at least two different materials of differing densities and/or sizes of particles. The material separator generally includes a tank containing a flocculent, a circulation system for circulating flocculent within the tank and a pair of conveyors for moving two different materials out of the tank. The tank may include an upper chamber and a lower chamber. At least a portion of each of the conveyors is located in the upper chamber to catch materials fed into the flocculent. Each of the conveyors may include a mesh belt that permits the flocculent to flow through the conveyor. The tank may include a clean out valve that permits fines and other debris accumulated within the upper chamber to pass into the lower chamber. The flocculent circulation assembly may include a nozzle that can be constructed in various configurations to create flows of flocculent of various velocities and trajectories. In one embodiment, the lower chamber includes a drag line assembly that removes fines and other accumulated debris from the lower chamber. | 08-12-2010 |
| 20110005978 | METHOD AND APPARATUS FOR SORTING PARTICLES - A method and apparatus for sorting particles moving through a closed channel system of capillary size comprises a bubble valve for selectively generating a pressure pulse to separate a particle having a predetermined characteristic from a stream of particles. The particle sorting system may further include a buffer for absorbing the pressure pulse. The particle sorting system may include a plurality of closely coupled sorting modules which are combined to further increase the sorting rate. The particle sorting system may comprise a multi-stage sorting device for serially sorting streams of particles, in order to decrease the error rate. | 01-13-2011 |
| 20110042279 | DEVICE AND METHOD FOR CLASSIFYING PARTICLES - A classification device includes: a classification channel, a particle dispersion delivery channel having an opening for introducing a particle dispersion at one end thereof with the other end connected to the classification channel via a junction, a conveying fluid feed channel having an opening for introducing a conveying fluid at one end thereof with the other end connected to the classification channel, and at least one collection channel for collecting separated particles, the collection channel having an opening at one end thereof with the other end connected to the classification channel, the junction and the classification channel having substantially equal widths, and at least one of the at least one collection channel having a bottom wall with an upwardly convex shape in the middle portion of its width. | 02-24-2011 |
| 20110155650 | CONTINUOUS PARTICLE AND MACRO-MOLECULAR ZETA POTENTIAL MEASUREMENTS USING FIELD FLOW FRACTIONATION COMBINED MICRO-ELECTROPHORESIS - In one general aspect, an instrument for measuring characteristics of particles suspended in a fluid is disclosed. It includes a closed wall surface defining a fractionation channel having a input opening, an output opening, and a flow axis that spans downstream from the input opening for the channel to the output opening. A force application subsystem has a force application output oriented perpendicular to at least part of the flow axis of the fractionation channel. A particle characteristic measurement subsystem is located hydraulically downstream from at least a portion of the closed wall surface defining the fractionation channel, and includes a sensor positioned to sense a property of the suspended particles in the potential measurement subsystem as well as a signal output responsive to the sensor. A result processor has a signal input responsive to the signal output of the particle characteristic measurement subsystem, zeta potential processing logic responsive to the particle characteristic measurement subsystem, and a particle characteristic signal output responsive to the particle characteristic processing logic. | 06-30-2011 |
| 20110284429 | Fluidizing Apparatus - A fluidizing apparatus comprises a vessel having an inlet, a plurality of outlets and a nozzle, through which a pressurized fluid can be fed into the vessel. The outlets are spaced at different heights from a base of the vessel and are controlled by valves enabling fluidized solids to be removed in layers from the vessel. In a further embodiment, a single outlet is raised or lowered to a desired position in the vessel. | 11-24-2011 |
| 20120006727 | METHOD AND APPARATUS FOR SORTING PARTICLES - A method and apparatus for sorting particles moving through a closed channel system of capillary size comprises a bubble valve for selectively generating a pressure pulse to separate a particle having a predetermined characteristic from a stream of particles. The particle sorting system may further include a buffer for absorbing the pressure pulse. The particle sorting system may include a plurality of closely coupled sorting modules which are combined to further increase the sorting rate. The particle sorting system may comprise a multi-stage sorting device for serially sorting streams of particles, in order to decrease the error rate. | 01-12-2012 |
| 20120132570 | Nanoparticle Separation Methods and Compositions - Methods of separating one type of nanoparticle from another type of nanoparticle in a mixture including more than one type of nanoparticle are disclosed. The methods may include suspending a mixture of the various types of nanoparticles in a liquid and modifying a characteristic of the liquid. Thereafter, a force may be applied to the nanoparticles within the mixture causing one type of nanoparticles to separate from another type of nanoparticles. The applied force may be the force of gravity, or it may be an induced force such as a centrifugal force applied with a centrifuge or similar apparatus. Upon the occurrence physical separation, sub-populations of nanoparticles may be removed from the suspension or segregated. Alternatively the methods may include modifying a type of nanoparticle in suspension. Alternative embodiments include nanoparticles modified in suspension to provide for separation from other types of nanoparticles. | 05-31-2012 |
| 20120234732 | MODULAR SPIRAL SEPARATOR ELEMENTS - The invention provides a spiral separator module | 09-20-2012 |
| 20120318719 | SERPENTINE STRUCTURES FOR CONTINUOUS FLOW PARTICLE SEPARATIONS - An improved technique for particle separation is provided. A serpentine structure is utilized in a continuous fluid flow environment to allow for suitable separation of particles to occur in a manner that does not require external application of forces to initiate the separation. The geometry of the serpentine structure and associated forces generated in connection with fluid flow therein suffice. | 12-20-2012 |
| 20120325727 | HIGH-VOLUME FAST SEPARATION OF MULTI-PHASE COMPONENTS IN FLUID SUSPENSIONS - A flow chamber is provided through which is flowed a mixture of a fluid and a particulate. The flow chamber comprises at least one multi-phase water inlet through which multi-phase water enters the flow chamber, a water outlet through which water exits the flow chamber, a solids outlet through which particles having a density at or above a pre-defined threshold exit the flow chamber, and a low density outlet through which particles having a density below the pre-defined threshold exit the flow chamber. Also provided are one or more ultrasonic transducers and one or more reflectors corresponding to each transducer to acoustically filter the fluid and cause particles/fluid to be selectively diverted to one of the outlets. Related apparatus, systems, techniques and articles are also described. | 12-27-2012 |
| 20130098808 | PROCESS AND SYSTEM FOR TREATING PARTICULATE SOLIDS - System and method for treating particulate solids comprises a screw feeder for transporting a water-based slurry of contaminated particulate solids through an ultrasound signal of sufficient size, strength and duration to cause the contaminants to separate from the particulate solids. One or more stacks of ultrasonic transducers arranged around the screw feeder may be employed in which the diameter of each transducer preferably is substantially the same as the pitch of the screw feeder. | 04-25-2013 |
| 20130180894 | SEPARATION OF ANALYTES - A method and apparatus involving the configuration of an open capillary channel for size-based separation of analytes is described. The open capillary channel contains numerous turns of defined angles separated by intervening linear or curvilinear segments of capillary tubing. The configuration of the channel allows analyte differentiation based on diffusion coefficients and thus separates analytes by size. | 07-18-2013 |
| 20140174994 | Micro-Fluidic Device for Sorting Particles, and Methods for Sorting Particles - A method and device for the sorting and focusing of suspended particles is disclosed. The device has a micro-fluidic channel, at least one inlet and a number of outlets for providing, sorting and receiving particles. A patterned array of grooves is present inside the micro-fluidic channel. The inlets and outlets are connected to the micro-fluidic channel. The particles are sorted by the array of grooves. The method consists of providing particles in a flow-focused manner to one end of the micro-fluidic channel using at least one inlet. The particles are sorted by the array of grooves present in the micro-fluidic channel. Particles are collected by a number of outlets which are connected to the other end of the micro-fluidic channel. | 06-26-2014 |
| 20140262973 | METHOD AND SYSTEM FOR STACKING AND SEALING HYDRODYNAMIC SEPARATION LAYERS - An assembly for a high output hydrodynamic separation unit includes, in one form, several components or parts. Top and bottom plates serve as caps for and distribute force through layers of separation channels. The compressive forces seal the channels and prevent leakage from the channels. An optional middle plate may also be provided to create smaller subsets of the layers of separation channels. At least one connector is provided to the combination of components to compress the layers of separation channels. In a variation, an optional outer shell may encase the unit to provide support and compress the stack with a unique threaded configuration. | 09-18-2014 |
| 20160074874 | CLASSIFIER - Disclosed herein are embodiments of a classifier ( | 03-17-2016 |
| 20160089632 | SYSTEM FOR PRODUCING A GYPSUM SLURRY FOR IRRIGATION - In one embodiment, a method includes providing agricultural grade gypsum to a mixing device using a conveyor, providing a fluid to the mixing device using a pump, mixing the agricultural grade gypsum with the fluid to produce a gypsum slurry using the mixing device, and pumping the gypsum slurry to a storage tank. In another embodiment a system includes a conveyor providing an agricultural grade gypsum, a pump providing a fluid, a mixing device configured to mix the agricultural grade gypsum provided by the conveyor with the fluid provided by the pump to produce a gypsum slurry, and a slurry pump configured to pump the gypsum slurry from the mixing device to a storage tank. | 03-31-2016 |
| 20160158764 | PROCEDURE FOR EFFICIENT RECOVERY OD DIAMONDS, GOLD FROM TAILINGS - The value-minerals are captured by gravity-separation, from a low-grade slurry. The ratio of liquids-to-solids in the slurry affects the efficiency of capture, and an ideal liquids/solids ratio is the ratio at which the efficiency of capture is at a maximum. The ideal ratio is different for different particle-sizes. The procedure includes dewatering the slurry, dividing the dry particles by particle-size, and feeding the several size-divided dry-streams into respective capture-stations. Prior to each dry-stream entering its respective capture-station, make-up water is added to the dry-stream in such quantity as to bring the liquids/solids ratio up to the ideal, for that particle-size. The procedure makes it simple to provide accurate measurement of and accurate control of the liquids/solids ratio. | 06-09-2016 |
