| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 209120200 | Including electrostatic | 6 |
| 20080257787 | METHOD FOR ISOLATING ALEURONE PARTICLES - The invention relates to a method and device for separating a mixture made of particles of a first particle type and a second particle type, especially aleurone particles and shell particles made of comminuted bran, said particles being scarcely distinguishable in terms of size and density, into various types of particles. Separation occurs according to particle-type specific triboelectric charging of said particles in a first active area and subsequent separation of the differently charged moving particles in an electric field. | 10-23-2008 |
| 20100282647 | ELECTROSTATIC MATERIAL SEPARATOR - A separation system includes an air separator that, in one embodiment, primarily receives Municipal Solid Waste (MSW) containing a mixture of relatively light MSW recyclable materials such as plastic, paper, cardboard, plastic containers, and/or metal containers and relatively heavy MSW such as textiles, food waste, yard debris, etc. The air separator blows the relatively light MSW recyclable materials up though a chamber and onto a first conveyor while the other relatively heavy MSW material drops down a chute onto a second conveyor. A separation screen receives the relatively light MSW recyclable materials from the air separator and separates the relatively flat fiber and plastic film materials from the other paper, plastic and metal containers. In another separation stage, an electrostatic emitter is positioned adjacent to a conveyor for applying an electrostatic charge to faciliate separation of the MSW recyclable materials. An optical identification system is configured to distinguish different types of recyclable materials. | 11-11-2010 |
| 20120085683 | METHOD FOR ELECTROSTATICALLY SEPARATING A GRANULE MIXTURE MADE OF DIFFERENT MATERIALS, AND DEVICE FOR IMPLEMENTING SAME - A method and a device for electrostatically separating polyvalent granular insulating materials that have good properties, are energy efficient, and easily adapt to ambient atmospheric conditions and to physiochemical properties of the granules to be separated. The method includes: a) injecting a current of air between two electrodes in a separation chamber defined by walls and having an air inlet and outlet; b) placing the granule mixture, made of different materials, into the air current; c) controlling the air current so that the granules levitate in the air current in a turbulent mode and become electrically charged by contact therebetween and/or by contact with the walls of the separation chamber; d) generating an electric field between two electrodes, substantially perpendicular to the direction of the air current, such that the charged granules in c) move, either in the direction of the electric field if the granules are positively charged or in the opposite direction if the charge thereof is negative; e) adhering the charged granules to the surface of the electrodes; and f) discharging and collecting the granules adhering to each electrode. | 04-12-2012 |
| 20140102948 | HIGH EFFICIENCY PARTICLE SEPARATING APPARATUS AND METHOD - A particle separating apparatus and method are provided, which pass a fluid sample such as blood through a filter to remove foreign matter, and separate target particles by using a MOFF channel, and re-separate the separated target particles through dielectrophoresis. The particle separating apparatus includes a MOFF (Multi Orifice Flow Fractionation) channel including a multi orifice segment through which a fluid sample passes to discharge a primarily separated material that are target particles separated from the fluid sample, through a central passage; a dielectrophoresis channel including a pair of electrodes to which AC power is applied and forming an electric field in a flow channel connected to the central passage of the MOFF channel to re-separate the target particles from the primarily separated material discharged from the central passage of the MOFF channel through dielectrophoresis. | 04-17-2014 |
| 20140138288 | Marine Microplastic Removal Tool - A microplastic particle removal tool is provided that comprises an elongated mesh screen supported by a pair of opposing pole members. The mesh screen comprises a polymer coated, fine mesh that is adapted to sift microplastic affected sand and remove the microplastic particles therefrom during cleanup activities. The pole members are elongated members wrapped in a layer of padding material and fastened to the ends of the mesh screen. The poles support the mesh screen while sifting and are utilized to condense the mesh screen therearound when the device is not in use. During use, the mesh screen is placed in a horizontal condition while microplastic affected sand is deposited thereonto. A pair of users supports the handle ends of the pole members to sift the affected sand and thereby remove the microplastic particles therefrom via electrostatic attraction. The collected particles are removed from the screen thereafter and discarded. | 05-22-2014 |
| 20150298397 | POWDER RECYCLING SYSTEM - A powder recycling system includes a powder feeder, a remaining powder collector, a bridge breaker, a block powder filter, a cyclone separator, a particulate filter cleaner, an air pressure generation device and an electrostatic precipitator. The powder feeder provides a construction powder to a construction platform. The remaining powder collector for collects the remaining powder. The cyclone separator is used to separate the large-size powdery particles and the small-size powdery particles of the remaining powder from each other through a rotating gaseous stream. The large-size powdery particles fall down to the powder feeder due to gravity, and the small-size powdery particles of the remaining powder is removed from the rotating gaseous stream and transmitted to the particulate filter cleaner. After the small-size powdery particles of the remaining powder are filtered by the particulate filter cleaner, the suspended small-size powdery particles are transmitted to the electrostatic precipitator. | 10-22-2015 |
