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| Number | Title | Issue Date |
| 7913851 | Separator for grinding mill A separator is used in conjunction with a grinding mill which has a suction assembly, a grinding device, regulating devices and a driving device. The separator is mounted in a main body of the grinding mill on a rotating vertical separator shaft, comprising two supp... | 03/29/2011 |
| 7267233 | In-line classifier for powdered products A classifier for classifying particulates entrained in a flowing stream of gas is configured such that a change of direction of gas flow causes particles to impinge upon a target, heavier particles being trapped in a downwardly extending fluidized trap. The classifi... | 09/11/2007 |
| 7237679 | Process for sizing particles and producing particles separated into size distributions A process for separating particles of different sizes comprising projecting a stream of particles into a fluid medium; allowing the particles to develop differing trajectories in the fluid medium; providing at least two separate collection areas for different averag... | 07/03/2007 |
| 7199180 | Adhesives comprising olefin polymers Disclosed are adhesives and processes for preparing the same, comprising at least one first homogeneous ethylene/α-olefin interpolymer, and optionally at least one tackifier, and optionally at least one plasticizer. The claimed adhesives are useful as adhesives suc... | 04/03/2007 |
| 7156235 | Apparatus for and method of classifying particles discharged from a vertical mill A classifier for separating coarse particles from a stream of gas and particles discharged from a vertical mill. The classifier includes a generally cylindrical outer casing having a vertical axis and a vertically oriented sidewall disposed on the mill, an inner cas... | 01/02/2007 |
| 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 |
| 7108138 | Material classifier A material classifier includes a cyclone including a cyclone inlet, a cyclone outlet, a blower and a blower discharge; an air diffuser connected at a diffuser inlet to the cyclone outlet and at a diffuser outlet to an air lock such that the cyclone and air diffuser ... | 09/19/2006 |
| 7028847 | High efficiency two-stage dynamic classifier A two-stage dynamic classifier (30, 30′) for classifying a pulverized feed material (34, 34′, 38) entrained in an air flow (31) includes a vertically extending housing having a lower feed material inlet (18), an upper feed material outlet ( | 04/18/2006 |
| 6974488 | Vacuum cleaner A vacuum cleaner with an external surface incorporates a cyclonic separating apparatus that includes a plurality of cyclones arranged in parallel with one another. The cyclones each have a tapered body with an outside wall and are arranged so that at least a part of... | 12/13/2005 |
| 6966506 | Method and apparatus for harvesting crops A method and system of harvesting crops involves cutting and threshing the crop, separating graff (a mixture of grain kernels, chaff, weed seeds, and other organic matter) from straw (plant stalks), and returning the straw to the field. This is preferably carried ou... | 11/22/2005 |
| 6966508 | On-line control of coal flow A system for balancing and controlling the distribution of pulverized coal into multiple equal diameter outlet pipes of coal pulverizers for improving boiler performance. The device includes a plurality of flow control elements, one flow control element for each out... | 11/22/2005 |
| 6935510 | Air separator The invention relates to an air separator for sifting material suspended in a flow of gas having course material and fine material by using a sifting wheel which rotates in a sifting chamber and which has blades fixed on the external periphery thereof. The blade cha... | 08/30/2005 |
| 6910585 | Dynamic centrifugal gas classifier and method of classifying performed therewith An apparatus and process for classifying fine particles from a particulate material, such as toner and pigment powders. The apparatus is generally a dynamic centrifugal gas (air) classifier that combines the operational advantages of centrifugal air classifiers with... | 06/28/2005 |
| 6568536 | Classifier and method for preparing toner A classifier is proposed which includes a dispersion chamber for dispersing a powder material therein, a classification chamber connected to the dispersion chamber, and a conical member disposed between the dispersion chamber and the classification chambe... | 05/27/2003 |
| 6276534 | Classifier apparatus for particulate matter/powder classifier A powder classifier which includes a classifier rotor fixedly secured to a rotatable shaft and having (i) an interior portion defined by upper and lower plates and (ii) an impeller wheel having upper and lower surfaces and a plurality of vanes therethroug... | 08/21/2001 |
| 6260708 | Method for air classification of toner The method for air classification of toner used to develop electrostatic images, whereby a toner product consisting of a powder with a wide particle size distribution is converted into a higher-quality toner product with a narrow particle size distributio... | 07/17/2001 |
| 6110242 | Apparatus for separating solids from a gas An apparatus for separating solids, such as scrap material, from a gas such as an air stream. The apparatus includes a horizontally mounted outer cylinder or drum and an inner perforated cylindrical member is mounted concentrically within the drum to prov... | 08/29/2000 |
| 5957300 | Classifier vane for coal mills An improved vane of the type adapted for use in the classifier cage of a bowl mill type coal pulverizer. The improved vane is designed such that its lower end extends below the classifier cage inlet when the vane is mounted in the inlet. In a preferred fo... | 09/28/1999 |
| 5931305 | Powder classifier The present invention provides a powder classifier using a classification rotor capable of classifying powder with high efficiency and high accuracy. The classification rotor is attached to a rotating shaft as a body and rotatably supported in a casing. W... | 08/03/1999 |
| 5927510 | Particle classification apparatus and processes thereof An apparatus for the classification of solid particulates entrained in a fluid, comprising: a housing provided with a feed inlet, a fine fraction outlet, and a coarse fraction outlet; and a classifier wheel having an upper and lower surface, and a plurali... | 07/27/1999 |
| 5819947 | Classifier cage for rotating mill pulverizers An improved classifier cage for bowl mill type coal pulverizers which have been converted from stationary throats to rotating throats with reversed flow direction. The direction of the classifier vanes is reversed such that the rotational flow direction o... | 10/13/1998 |
| 5788727 | Centrifugal air separator A centrifugal air separator with a housing provided with inlets for material to be separated and separating air or a combined material and air inlet, and outlets for air-and-fines mixture and coarse material, in which at least one wheel formed essentially... | 08/04/1998 |
| 5755333 | Method and apparatus for triboelectric-centrifugal separation A method for separating two species of particles present in raw feedstock includes electrically charging at least one of the species of particles being separated. Next is the subjecting of the particles to both centrifugal and electrostatic forces. This i... | 05/26/1998 |
| 5622321 | Mill classifier The invention relates to a mill classifier or sifter, particularly a roller mill classifier, which is suitable as a high-performance classifier for a roller pan mill or a roller mill, e.g. for an air-swept mill. In order to achieve in the case of a partic... | 04/22/1997 |
| 5421147 | Nut harvester A nut harvester includes a frame drawn by a tractor over nut and debris windrows on the ground of a nut orchard. The nut harvester collects the nuts from the windrows and separates the debris collected therewith while minimizing the dust emissions and air... | 06/06/1995 |
| 5377843 | Classifying wheel for centrifugal-wheel air classifier A classifying wheel for a centrifugal-wheel air classifier, through which the classifying air flows from outside to the inside against its centrifugal action. The wheel has blades arranged in a ring extending parallel to the axis of rotation of the wheel.... | 01/03/1995 |
| 5366095 | Air classification system An air classification system comprises of dual cylindrical chambers mechanically separated, to allow a zone of atmospheric air in between. A primary classification chamber situated vertically below a concentric secondary classification chamber. A rotating... | 11/22/1994 |
| 5354002 | Double separator for sorting particulate material A double separator for sorting particulate material, e.g. raw materials of cement or cement clinker comminuted in a roller press, and in which the material charge is suspended in a conveying gas, and consisting of a coarse separator (2), on top of which a... | 10/11/1994 |
| 5294002 | Air separator with spiral staves Apparatus (10) for separating intermixed particulate materials. The apparatus (10) includes a housing (12) having a coaxial core (14) disposed therewithin to define an annular space (24) between the core (14) and the wall of the housing (12). A recirculat... | 03/15/1994 |
| 5263589 | Method of recovering tobacco from stemmery discard A stemmery discard of tobacco and soil particles is fed to an air/centrifugal separator in which a fraction of smaller tobacco particles is recovered with a low amount of soil. The residue from that separator is fed to a screen separator in which a fracti... | 11/23/1993 |
| 5232096 | Material dispersion apparatus The invention relates to a material dispersion apparatus, particularly for spreading classifiers, with an upper material supply and a material feed surface. The material feed surface is constructed as a sieve-like surface, which is installed in an air cha... | 08/03/1993 |
| 5222693 | Apparatus for separating particulate matter from a fluid flow Apparatus for separating relatively more dense particulate matter from a relatively less dense fluid flow comprising a separator member mounted for rotation about an axis, and including the following: one or more fluid inlets; one or more particulate matt... | 06/29/1993 |
| 5201422 | Classifier for powdery material A classifier for powdery material has a cylindrical casing formed at an upper portion thereof with an inlet port for introducing the material to be classified into the casing in a tangential direction of an inner wall thereof. The casing has a conical por... | 04/13/1993 |
| 5188237 | Device for the separation of powders into coarse and fine components A device for the separation of a powder into a coarse component and a fine omponent with a housing 1, a material feed 3, 4 into the housing for the material to be fed and a coarse material discharge 8 for the housing and a fines discharge 19 for the housin... | 02/23/1993 |
| 5165549 | Gas current classifying separator A separator for classifying powder with air current comprises at least a classifying chamber and an introducing section for introducing powder into the classifying chamber, a powder feeding inlet for feeding powder formed at the upper portion of the class... | 11/24/1992 |
| 5158182 | Sifter A rotary sifter for separating different fractions of particulate material having a cylindrical outer housing and three rotary cages with vertical bars through which material and air pass inwardly with the cages independently rotary mounted, and channels ... | 10/27/1992 |
| 5115989 | Dynamic roller mill air classifier The invention relates to a dynamic roller mill air classifier, which is provided in integrated manner over a roller mill. As existing air classifiers suffered from certain disadvantages with respect to the specific energy requirement, the invention makes ... | 05/26/1992 |
| 5114131 | Circulation-type grinding system for grinding brittle material A grinding system for grinding brittle material such as used in the manufacture of cement including a high pressure roller press operated with high pressing forces to form interparticle crushing with incipient cracks in the interior of the particles inclu... | 05/19/1992 |
| 5059225 | Gas purifying cyclone Gas purifying cyclone comprising at least one inlet nozzle (5) for contaminated gas, an outlet (6), for purified gas, an outlet (10) for contaminations, and a housing surrounding the rotor and comprising a funnel (9) at its lower most portion for receivin... | 10/22/1991 |
| 5055182 | Separator The invention relates to a pneumatic separator for separating relatively coarse and relatively fine particles and in which a material distributor plate is arranged below the rotor and guide unit in such a way that the material thrown off by the rotor pass... | 10/08/1991 |
