With Recirculation Of Material To Comminuting Zone Patents (Class 241/97)
  • Patent number: 9138907
    Abstract: Feather cutters are described that cut a feather shaft of a feather. One feather cutter includes a first sildable arm and a second sildable arm that move in a linear direction with respect to each other between a first position and a second position, a plurality of springs that are placed between the first sildable arm and the second sildable arm, an adjustable blade that is attached to the first sildable arm via a screw and cuts the feather shaft of the feather upon moving the first sildable arm to the second position, a shaft cylinder with two slits that is attached to the second sildable arm and the feather shaft of the feather is placed within the shaft cylinder to hold the feather shaft which is being cut with the adjustable blade in a fixed position.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: September 22, 2015
    Inventor: Albara Mohammed Binothman
  • Patent number: 8679560
    Abstract: Apparatus, systems and methods are disclosed to manufacture a plurality of edible pieces in a continuous process where each piece is generally different in thickness, shape, size and/or texture from another piece, so as to create, in the aggregate product distribution, pieces of randomly varying thickness, size, shape and/or texture.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: March 25, 2014
    Assignee: Del Monte Corporation
    Inventors: Davor Juravic, Yomayra Alvarez, Oscar Ortiz, Dwayne P. McDowell, II, Geoffrey Chase Thornhill
  • Publication number: 20130256437
    Abstract: A circulating processor includes a base, a container, a cutlery and a pressurizing mechanism. An operating motor is disposed in the base and is disposed with a mandrel therein. The container is disposed above the base, where a space is formed on its bottom part, and a reflux opening is formed on its upper half part and in communication with the space. The cutlery is positioned on the container's bottom part and connected to the mandrel. Thereby, when the operating motor operates, the mandrel and the cutlery are enabled to rotate synchronously, to mash food, vegetables and fruits in the container. The pressurizing mechanism is in communication with the space of the container. Through the pressurizing effect of the pressurizing mechanism, the mashed food, vegetables and fruits can be transferred into the container via the reflux opening, so as to perform circulating mashing treatment.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 3, 2013
    Inventor: Wei-Chih LIN
  • Patent number: 7984865
    Abstract: A method and apparatus for processing animal byproduct materials is disclosed. In some embodiments, the apparatus includes a grinder for grinding the byproduct materials; a mixer for mixing the ground byproduct materials with an oil absorbing material and a backmix material; and a dryer for drying the mixed materials. In some embodiments, the apparatus also includes a cyclone for separating an air stream from the dried materials. The dried materials are transported to one or more presses for pressing the dried materials, thereby reducing oil content. The one or more presses includes a first opening for delivering pressed oil to a centrifuge and a second opening for sending the pressed materials to a screener. A portion of the screened material is sent back to the mixer (and/or the grinder) and the balance of the screened material are sent to storage as a finished product.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: July 26, 2011
    Assignee: Auburn University
    Inventors: Ken Mosley, Kenneth T. Nickerson, Rick Renninger
  • Patent number: 7963469
    Abstract: A food waste disposer having a fluid recycling device includes a plate disposed for rotation within the food waste disposer. At least one fluid recovery member connects a first side of the plate defining a food grinding cavity to a second side of the plate defining a waste receiving cavity. Rotating the plate forces a portion of a waste water/slurry in the waste receiving cavity to back-flow into the food grinding cavity, to recycle/reuse the water. The fluid recovery member can include a fluid passageway oriented at an angle with respect to the plate. A control device can also be used to recycle the portion of the food waste water/slurry.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: June 21, 2011
    Assignee: Emerson Electric Co.
    Inventor: Steven P. Hanson
  • Patent number: 7828236
    Abstract: A grinding mill grinds grains or similar foodstuffs, while the concept of the invention could also be applied to other feed materials. The grain is fed at a controlled rate to an impeller chamber, ground by the impeller until a small enough size to fit through a sieve, and separated into a sample cyclone stream and a bulk or waste cyclone stream. Each cyclone includes a central air return duct which channels air back to the grain feeder chamber and then into the impeller chamber. By having the air from grinding recirculated back to the grinder after separation, the grain grinding process is cleaner and results in less moisture loss.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: November 9, 2010
    Inventors: Rodney I. Booth, Mark L. Bason, Steven J. Neil
  • Publication number: 20100072312
    Abstract: In a pulverization/dispersion processing system using a medium agitating type wet pulverization/dispersion machine, a system capable of judging the progress of pulverization/dispersion processing successively and objectively during the pulverization/dispersion processing is provided. A pulverization/dispersion processing system 10 including a medium agitating type wet pulverization/dispersion machine 20, a holding tank 40 of a material to be processed, a circulating pump 30, and circulating lines 50 connecting these components to each other is equipped with a particle size distribution measuring instrument and/or a zeta potential measuring instrument 60 in one of the circulating lines 50. These measuring instruments 60 perform measurement by means of an ultrasonic wave, and can use an ultrasonic attenuation method or an electronkinetic sonic amplitude method.
    Type: Application
    Filed: April 9, 2008
    Publication date: March 25, 2010
    Applicant: Nippon Coke & Engineering Co., Ltd.
    Inventors: Satoshi Shiina, Osamu Ishikawa, Hiroaki Kezuka
  • Patent number: 7673824
    Abstract: A drink maker for processing foodstuff and dispensing the processed foodstuff therefrom. A base encloses a motor and a jar including a first recirculation surface is removably mountable to the base. A processing cup including a second recirculation surface is removably mountable to the jar and the jar and processing cup comprise a container in an assembled configuration. A recirculation chamber is defined by the first and second recirculation surfaces. The base includes an arcuate-shaped mounting wall extending from its top surface and the jar includes a skirt having a first wall and a second wall positioned radially outwardly from the first wall. The first and second walls define a mounting gap and the mounting wall is positioned in the mounting gap in the assembled configuration.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: March 9, 2010
    Assignee: Hamilton Beach Brands, Inc.
    Inventors: George William Stamper, III, Benjamin Henry Branson, III
  • Patent number: 7624936
    Abstract: A granular material grinder and method of use includes a hammer mill for reducing incoming granular material into particulate material, a microgrinder for reducing the particulate matter into microground powder by particulate matter to particulate matter collisions, and a product collector to collect the microground powder portion. The granular material grinder having the feature of being operated in a closed system to facilitate efficient recovery of grain into microground powder and operable in a cooled inert gas to prevent any compound degradation due to temperature or oxygen.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: December 1, 2009
    Inventor: Roger A. Montag
  • Patent number: 7618181
    Abstract: The present invention provides an apparatus for dispersing pigment in a water-based or oil-based intermediate mixture for producing a coating composition comprising a mixer and a dispersing device, the mixer having a vacuum pump and capable of conducting a primary mixing of a pigment component and resin-containing liquid medium to form an intermediate mixture, the dispersing device capable of conducting the secondary mixing of the intermediate mixture, the mixer and the dispersing device being connected by pipes to form a circulation channel for the intermediate mixture, one of the pipes being provided with a seal-less pump, the intermediate mixture capable of circulating between the mixer and the dispersing device through the circulation channel.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: November 17, 2009
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Masahiko Hiraki, Yushi Taguchi
  • Publication number: 20090194005
    Abstract: A cementitious composition capable of forming high early strength cement when admixed with water may comprise, for each 100% by weight, no more than about 60% by weight C3S, at least about 4% by weight C2S, and between about 7% and about 11% by weight SO3, wherein the cementitious composition has a particle size distribution such that substantially all of its particles are of a size of about 10 microns or smaller. A cementitious composition may have a ratio of weight % SO3 to weight % Al2O3 of at least about 1.5 and a particle size distribution such that substantially all of its particles are of a size of about 10 microns or smaller. An apparatus and method for making such a cementitious composition are also described.
    Type: Application
    Filed: February 4, 2008
    Publication date: August 6, 2009
    Inventors: Louis U. Spellman, Jose Garcia
  • Publication number: 20090179098
    Abstract: A reclamation device for a mill that includes a collector positioned at an output chute of the mill and a connection for airflow from the collector back to the mill. Air and at least some powder that would have been wasted without the reclamation device is collected by the collector and re-fed to the mill through the connection. Preferably, the collector includes a shroud that extends into the collector. Also, a closed loop grinding mill that includes such a reclamation device, and a method of upgrading existing mills to include such a reclamation device.
    Type: Application
    Filed: May 3, 2008
    Publication date: July 16, 2009
    Inventors: Stephen Williams, Tod Powers
  • Publication number: 20090008485
    Abstract: Crushing finely the chipped rubber such as that of waste tire is done by further small number of crushers, and the capture rate of the target size of the rubber particles is improved. With a crusher which finely crushes the chipped rubber (G) such as that of waste tire, the chipped rubber (G) is supplied to a crusher (10a) structured by a rotating roll (12) having relatively rough groove pitch and pluralities of fixed blades (14) each of which has pluralities of grooves forming crushing edges, thus conducting crushing. The rubber particles (G) discharged from the crusher (10a) are again supplied to the crusher (10a) to repeat the crushing to conduct rough-finishing operation. Then, thus roughly-finished rubber particles (G) are treated by similar crushing operation using a rotating roll (10b) having relatively small groove pitch to conduct finish treatment. The finely-crushed rubber particles are classified using a sieve (16) to specified size ranges.
    Type: Application
    Filed: August 22, 2006
    Publication date: January 8, 2009
    Applicants: Bridgestone Corporation, Bridgestone Plant Engineering Co., Ltd.
    Inventors: Eiji Yano, Tetuya Tomiyasu
  • Patent number: 7438245
    Abstract: Disclosed is a milling and classifying apparatus, adapted to produce toner fine particles, comprising a collision mill, and an air classifier, wherein the collision mill comprises a jet nozzle room, a path, a collision plate, and a collision member mounted to a support of the collision plate at downstream of the collision plate, the air classifier comprises a dispersion room and a classification room, the classification room is disposed below the dispersion room, and a flow stabilizer is arranged at a central suction of the separator core to control swirl stream generated within the classification room so as to centrifuge the powder into coarse particles and fine particles by action of the swirl stream.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: October 21, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Masahiro Kawamoto, Kohta Wakimoto, Kohji Kubota, Mamoru Kawaguchi, Yoshiyuki Okegawa, Hideyuki Ueda, Masayuki Kakimoto, Hiroaki Sugiyama, Tomoyuki Yamada, Yuuichi Kohyama, Masato Kobayashi, Fumio Nishide, Kenkoh Degura, Hirofumi Yamanaka, Tohru Suganuma, Shoji Watanabe, Ikuo Tasaki
  • Publication number: 20080245911
    Abstract: The present application discloses a recirculating crushing and grinding device for crushing and grinding liquid-like materials or materials that contain liquid, said device comprises a motor, a hopper, a crushing and grinding part and a material recirculating part. Said crushing and grinding part includes a coarse-crushing section and a fine-grinding section, said fine grinding section comprises a pair of grinding components, and said material recirculating part comprises a pump and recirculating ducts provided downstream of said crushing-grinding part. The present application also discloses a soybean milk maker employing said recirculating crushing-grinding device, and a method for crushing and grinding a recirculated material and a method for producing soybean milk. The equipment disclosed in the present invention is easy to manufacture, with the advantages of a low noise during operation and low energy consumption.
    Type: Application
    Filed: May 29, 2008
    Publication date: October 9, 2008
    Inventor: Xuning Wang
  • Publication number: 20080185463
    Abstract: The method of converting nepheline syenite particulate feedstock with a grain size profile to an ultra-fine grain finish product for subsequent commercial use, the ultra-fine grain final product has a maximum grain size of less than about 6 microns.
    Type: Application
    Filed: January 22, 2008
    Publication date: August 7, 2008
    Inventors: Louis M. Schlesinger, Mauricio Duran Sanchez, Gerardo Hernandez Gonzalez, Artemio Gonzalez Acevedo
  • Patent number: 7073737
    Abstract: The invention relates to a rotary tube mill and to a method of comminuting lumpy mill feed material, in which at least a first and a second grinding chamber as well as a co-rotating partition disposed between the grinding chambers are used. The material ground in the first grinding chamber is divided in the partition into first and second part-quantities of mill feed material, whereby at least a part of the second part-quantity of mill feed material proceeds into the second grinding chamber and at least the first part-quantity of the mill feed material is discharged separately from the tube mill.
    Type: Grant
    Filed: November 28, 2002
    Date of Patent: July 11, 2006
    Assignee: Polysius AG
    Inventors: Ludger Schulte, Frank Ungethüm, Robert Schnatz, Thomas Rüther, Ludwig Könning, Jens Reimers, Hubert Eickholt, Dirk Dilly, Heinz Alker, Reinhard Giesemann
  • Patent number: 7052599
    Abstract: An apparatus and method recycles the abrasive fluid or slurry effluent used in the polishing step in the manufacture of semiconductors. Agglomerations of abrasive grains built up in the slurry effluent are crushed using a mill, ultrasonic oscillation, or pressurized circulation. The slurry effluent is then regenerated and reused.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: May 30, 2006
    Assignee: Fujitsu Limited
    Inventors: Hiroshi Osuda, Toru Matoba, Masataka Fukuizumi
  • Patent number: 6969017
    Abstract: A comminuting apparatus is provided having a frame, a set of overlapping scissor rolls, a shear outtake manifold, and a pneumatic conveyor. The frame has an enclosure with an entrance for receiving waste material. The set of overlapping scissor rolls includes a feed scissor roll and a recirculation scissor roll, both the feed scissor roll and the recirculation scissor roll being carried for co-rotation within the enclosure and operative to comminute the waste material into subdivided pieces by drawing the received waste material beneath the feed scissor roll and up between the feed scissor roll and the recirculation scissor roll. The shear outtake manifold is beneath the scissor rolls and is configured to collect the subdivided pieces of waste material.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: November 29, 2005
    Inventor: Jere F. Irwin
  • Patent number: 6789756
    Abstract: An improved vortex mill for milling a substantially particulate solid material, which includes one or more working chambers. The mill also includes one or more working fluid inlets and one or more discharge ports. One or more working fluid inlets together with one or more discharge ports facilitate the vortex flow within the one or more working chambers. There are also one or more feed inlets to provide milling of the solid material, which is discharged from one or more discharge ports. In addition, there is apparatus for inducing controlled perturbations in the flow of the working fluid in the one or more working chambers, thereby to improve the milling of the solid material in the vortex flow.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: September 14, 2004
    Assignee: Super Fine Ltd.
    Inventor: Yan Beliavsky
  • Patent number: 6637682
    Abstract: The mechanical crusher includes a rotating shaft, a rotor mounted about the rotating shaft and having at least one sub-rotor containing a plurality of blades, a liner having a plurality of grooves formed on the inner peripheral surface thereof and disposed externally of the rotor with a predetermined gap defined between the inner peripheral surface thereof and the outer-peripheral surface of the rotor, and a drive unit for rotating the rotor. The blades of at least the one sub-rotor incline in a direction where the flow of a material to be crushed is forced back. With this arrangement, the mechanical crusher can effectively crush a fiber-incluing material such as wheat bran, and the like to fine powder.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: October 28, 2003
    Assignee: Nisshin Seifun Group Inc.
    Inventors: Satoshi Akiyama, Takanori Morinaka, Kenzou Kokubo
  • Patent number: 6491241
    Abstract: Provided is, among other things, and together with associated methods, a powder feed comprising: a venturi comprising an external gas inlet, a gas outlet through which gas flows at a rate amplified over a gas flow rate into the external gas inlet, and an internal gas inlet; and a cyclone with an intake port connected to the venturi gas outlet, a recycle outlet port, and a product port, wherein a gas flow rate FS into the venturi external gas inlet results in an enhanced flow rate into the cyclone intake port.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: December 10, 2002
    Assignee: Delsys Pharmaceutical Corporation
    Inventor: Hoi Cheong Sun
  • Patent number: 6415998
    Abstract: In order to further develop a circuit grinding apparatus with roller mill or roller press for comminution of the material bed of granular material and with at least one integrated sifter, in which mill and sifters are arranged within two fixed side face walls with an interlying turnably borne material conveyor ring settable into rotation for an internal material circuit, so that seals between the fixed side face walls and the interlying material conveyor ring that is settable in rotation are no longer necessary, it is proposed according to the invention to combine the two fixed side face walls over a housing part that houses the rotatable material conveyor ring, especially a ring housing part, into a housing tightly enclosing the entire working space of the circuit grinding apparatus, and to arrange on the underside of the housing part at least one grinding material leakage discharge from the working space of the circuit grinding apparatus.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: July 9, 2002
    Assignee: KHD Humboldt Wedag AG
    Inventor: Christian Splinter
  • Patent number: 6343753
    Abstract: A separating device for coolants or lubricants, containing chips, is described. This is provided with a supply line (11), a container (10) as well as a pump (20), which is connected with the container (10). The pressure side of the pump is connected with a discharge line (28). The pump, in particular, is an unchokable pump. A device (13), for comminuting the chips supplied, is disposed in the container (10).
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: February 5, 2002
    Assignee: Filterwerk Mann & Hummel GmbH
    Inventor: Mark Janssen
  • Patent number: 6179231
    Abstract: A cylindrical chamber has a drive shaft rotatably mounted therein and extending along substantially the entire longitudinal extent thereof. This drive shaft is rotatably driven by a motor at a speed of 1,500-10,000 rpm. Solid particles to be comminuted which may be of coal, limestone/dolomite, cement or lime are fed into the chamber. Pressurized air is fed into the bottom of the chamber. Uplifting pressure for driving the gas and particles upwardly in the chamber may be provided by pressurized gas fed in through a tangential inlet in conjunction with a stationary velocity head. The upwardly driven particles are first driven through a plurality of short arm rotors which are driven by the shaft and provide a centrifugal force which comminutes the particles. The particles are then driven through a plurality of semi-permeable screens which are rotatably driven by the shaft and further comminute the particles. High apex flow enhancers are installed along the walls of the chamber to enhance the fluid flow.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: January 30, 2001
    Inventor: Ernest Csendes
  • Patent number: 6082641
    Abstract: Apparatus and method for concentrating metallic aluminum from dross comprising a system in which dross is repeatedly and continuously passed through an impact type mill to mill the material and to enable the metallic aluminum concentrates to be separated from the non-metallic components of the dross. A portion of the milled material is continuously diverted by a percent divider to a screening zone where it is classified according to particle size. Through-put devices regulate the average number of passes that material is circulated through the mill in accordance with particle size to obtain a product of relatively high aluminum concentration and a by-product of a relatively low aluminum content.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: July 4, 2000
    Inventor: Richard Skurko
  • Patent number: 6042032
    Abstract: A continuously operating process and a plant for comminuting by grinding a mineral material into grains of different sizes and dividing the ground product into several fractions each constituted by grains the dimensions of which are between a predetermined upper limit and a predetermined lower limit. Starting from a raw product, it is subjected to grinding by material layer crushing, the ground products are divided into several fractions comprising at least one coarse fraction and one fine fraction, and those grains the dimensions of which are greater than the upper limit of the coarse fraction, and possibly all or part of the fractions the grains of which have dimensions between the lower limit of the coarse fraction and the upper limit of the fine fraction, are returned to the grinder input.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: March 28, 2000
    Assignee: FCB Societe Anonyme
    Inventor: Andre Pinoncely
  • Patent number: 5988540
    Abstract: A comminuting and distribution device for recycling yard waste is provided. The device includes a mixing tank mounted on an upper surface of a movable support structure. The mixing tank includes a slurry preparation structure therein for creating a slurry from yard waste and fluid deposited within the mixing tank. A distribution structure draws the slurry from a mixing tank and distributes the same to a desired location outside the mixing tank for fertilizing a lawn, garden or the like.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: November 23, 1999
    Inventor: Terrance Pugh
  • Patent number: 5918823
    Abstract: A product bed comminution high-pressure roller press wherein the problem of great recirculations of product material or, respectively, high product circulation rates caused, for example, because of reduced roller press pressures is solved employing little machine outlay. Two rollers (10, 11) are surrounded by a housing composed of two stationary lateral end walls (12, 13) between which a rotatably seated material conveying ring (16) that can be rotated is arranged for an internal product material circulation. The product material is admitted from the side through one or more openings (22) in one or in both housing end walls (12, 13) and the product material is discharged laterally through one or more openings (24) in the housing end walls (12, 13) via a discharge element (25) and/or via one or more discharge elbows (27).
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: July 6, 1999
    Assignee: Deutz Aktiengesellschaft
    Inventors: Siegfried Strasser, Franz Goddecke
  • Patent number: 5893523
    Abstract: An apparatus for comminuting solid waste material comprises a frame having an enclosure with an entrance for initially receiving solid waste material; a set of overlapping scissor rolls rotatably mounted within the enclosure for shearing the waste material into subdivided pieces when the material passes between the scissor rolls; a feed roll rotatably carried by the frame for directing the waste material to the scissor rolls; and a separator screen carried by the frame in association with the at least one of the scissor rolls and having a plurality of apertures of a predetermined size for separating pieces having a size less than the predetermined size to pass therethrough to a shear outtake manifold for separation while preventing large subdivided pieces having a size greater than the predetermined size from passing therethrough.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: April 13, 1999
    Assignee: Irwin Research & Development, Inc.
    Inventor: Jere F. Irwin
  • Patent number: 5795062
    Abstract: A milkshake machine or similar apparatus uses the grinding and shredding principles employed by conventional impeller-type waster disposers. The milkshake machine has a housing that defines an upper grinding chamber and a lower receiving chamber separated by a rotatable impeller disk that mixes together and drives ingredients to be mixed against shredding surfaces on the inner wall of the grinding chamber. The receiving chamber has a discharge outlet, and a return inlet is provided in the housing above the grinding chamber. A discharge conduit is connected at one end to the discharge outlet at has a return port and a discharge spout at its opposite end. A return conduit is connected at one end to the return port of the discharge conduit and at its opposite end to the return inlet. A valve mechanism is provided to divert the mixed and ground ingredients expelled into the discharge conduit either into the return conduit and back into the grinding chamber or out of the discharge spout.
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: August 18, 1998
    Assignee: Hamilton Beach/Proctor-Silex, Inc.
    Inventor: Kevin M. Johnson
  • Patent number: 5624080
    Abstract: An agitator mill is provided with a separate grinding-stock/auxiliary-grinding-body separator device, which comprises a rotor, drivable to rotate, for the separation of the auxiliary grinding bodies from the treated grinding stock. The auxiliary grinding bodies and untreated grinding stock are returned to the agitator mill. The separator device and the agitor mill and the lines connecting these two form a closed system.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: April 29, 1997
    Assignee: EVV-Vermogensverwaltungs-GmbH
    Inventors: Norbert Stehr, Philipp Schmitt
  • Patent number: 5482218
    Abstract: The invention provides an apparatus for crushing material such as rock and includes a support structure having an inlet and an outlet. A powered rotor shaft rotates with respect to the support structure about a shaft axis, and a rotor mounted eccentrically on shaft describes orbital motion about the shaft axis. The rotor has a rotor wall which moves cyclically and laterally with respect to the axis during the orbital motion. At least one stator is mounted in the support structure to provide a stator wall spaced oppositely from the rotor wall to define therewith opposing walls of a crushing chamber located between the inlet and outlet. Feed direction of material passing between the inlet and outlet is generally perpendicular to the shaft axis, and when the rotor describes the orbital motion, spacing between opposing walls of the chamber varies cyclically. The stator is mounted yieldably so as to move away from the rotor when a pre-determined threshold force is exceeded so as to reduce possible damage.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: January 9, 1996
    Inventor: Yonggan Ha
  • Patent number: 5451376
    Abstract: In a fine comminution apparatus arranged downstream of a coarse comminution apparatus, polyurethane foam wastes can be comminuted to the desired particle size for recycling as an additive in the production of polyurethane, in a low-dust and energy-saving manner, by carrying out the fine comminution preferably by repeatedly forcing a mixture of the coarsely comminuted material and one of the reaction components through a nozzle or through a plurality of nozzles.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: September 19, 1995
    Assignee: Maschinenfabrik Hennecke GmbH
    Inventors: Ferdinand Proksa, Hans-Michael Sulzbach, Ferdinand Althausen, Jurgen Wirth, Reiner Raffel
  • Patent number: 5333798
    Abstract: A method of crushing brittle materials for obtaining a product of great fineness, wherein the raw material is fed to a roll mill providing a product containing agglomerates and carried into a disaggregator-separator, the fine particles being discharged and the coarse particles being recycled, the disaggregation rate being limited in the disaggregator and the invention being applicable to cement clinker and to various mineral substances.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: August 2, 1994
    Assignee: CLE
    Inventors: Maurice Paliard, Jacques Duputs
  • Patent number: 5299747
    Abstract: A paper material screening and refining apparatus has a tank which receives a paper material to allow the paper material to accumulate therein; a cylindrical screen which divides the space in the tank into a primary chamber and a secondary chamber; a cylindrical rotary member carried by a rotary shaft and disposed so as to oppose to the screen; a rotational member carried by the rotary shaft and disposed near the end of the tank remote from the paper material receiving end of the tank; a water supply pipe for supplying water into the primary chamber from the region near the rotational member; a water supply valve provided in the water supply pipe; a discharge pipe for discharging the paper material in the primary chamber of the tank from a region near the rotational member; and a discharge valve provided in the discharge pipe.
    Type: Grant
    Filed: April 27, 1992
    Date of Patent: April 5, 1994
    Assignee: Satomi Seisakusho Co., Ltd.
    Inventor: Hitoshi Satomi
  • Patent number: 5234316
    Abstract: A canned motor has a housing and a motor shaft which extends through the housing. A rotor is fixed to the shaft and is located in a rotor compartment within the housing. The rotor compartment has a flow path for circulation of a cooling and lubricating fluid through the compartment. A sleeve surrounds the shaft upstream of the flow path and is surrounded by a second sleeve. The two sleeves cooperate to define a gap which serves as a filter for fluid entering the rotor compartment. The minimum height of the gap is smaller than the minimum height of the flow path to prevent suspended solid particles which can obstruct the flow path from entering the latter. The sleeves are composed of a hard material so that oversized particles can be ground down by causing the fluid to repeatedly bring the particles into contact with the sleeves.
    Type: Grant
    Filed: May 7, 1991
    Date of Patent: August 10, 1993
    Assignee: KSB Aktiengesellschaft
    Inventor: Peter Rupprecht
  • Patent number: 5221051
    Abstract: Materials such as cement clinker are crushed by utilizing a crushing apparatus including a vertical roller mill provided with a rotatable table and a plurality of rollers and a distributing device for distributing materials preliminarily crushed by the vertical roller mill. The materials to be crushed is fed into the vertical roller mill, the materials are crushed between the table and the rollers by a pressing force applied to the rollers and substantially the whole amount of the crushed materials is then taken out from the vertical roller mill and conveyed to the distributing device. The crushed materials once conveyed to the distributing device is returned partially as they are to the vertical roller mill and again crushed together with the materials newly fed into the vertical roller mill. The materials are returned to the vertical roller mill by about 20% or more in weight ratio with respect to the newly fed materials when cement clinker is utilized as the materials to be crushed.
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: June 22, 1993
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Isao Hashimoto, Seisuke Sawamura, Hiroshi Ueda, Yuji Yamamoto, Kanzaburo Sutoh, Mitsunari Ichikawa, Tsuneichi Shitara
  • Patent number: 5183215
    Abstract: A grinding appliance, intended especially for grinding material in the form of flowable or pasty conglomerates, consists of a housing (1) with an inlet chamber (2), a grinding chamber (3) for receiving grinding balls and an outlet (4). A rotatably mounted agitator body (5) which can be driven by means of a motor (7) is arranged in the grinding chamber. So that the conveyance can be controlled in a simple way independently of the rotational speed of the agitator body, the inlet chamber (2) is preceded by a storage vessel (46) which is equipped with an air-pressure connection (50) and which is sealingly closeable (FIG. 1). Alternatively, a pump can also be inserted in the storage vessel and the air-pressure connection be selectively exchangeable with a return connection.
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: February 2, 1993
    Inventor: Hermann Getzmann
  • Patent number: 5127588
    Abstract: A machine for reducing worn-out vehicle tires to small chip-like particles comprises a frame on which an elongated shaft is journaled for rotation, the shaft having a first and second plurality of rotary cutting blades, each of a different diameter affixed to the shaft so as to be rotatable therewith. Also affixed to the frame is a set of stationary cutter bars whose sharpened edges are disposed within a predetermined close tolerance to the periphery of the rotary cutting blades. A large, massive flywheel is attached to one end of the shaft and is driven by a suitable motor. Surrounding the rotary cutting blades is a shroud which, in turn, suppots an infeed hopper having a spiked drum journaled therein.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: July 7, 1992
    Assignee: Tire Service Equipment Mfg. Co. Inc.
    Inventor: Raymond H. Schmidt
  • Patent number: 5114131
    Abstract: 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 including recirculating a portion of the material delivered from the press to a sifter locating the sifter directly above the nip and delivering the sifted material downwardly into the nip retaining the structural height of the system low and delivering fresh stock laterally directly into the nip of the roller press to merge with the sifted material entering directly into the nip of the roller press.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: May 19, 1992
    Assignee: Kloeckner-Humboldt-Deutz Aktiengesellschaft
    Inventors: Siegfried Strasser, Franz Goeddecke, Albrecht Wolter
  • Patent number: 5048763
    Abstract: Disclosed is an apparatus and a method for the comminution of brittle material in a roll crusher. The method comprises the steps of introducing fresh material feed into a roll crusher which is divided into two distinct feed inlet zones which are at least one initial feed inlet zone for said fresh feed material and at least one secondary feed inlet zone for feed which has been stressed at least once by said roll crusher. Each initial feed inlet zone and each secondary feed inlet zone directs feed into, respectively, a corresponding initial feed crushing zone and secondary feed crushing zone. In the invention, fresh feed material is introduced into the roll crusher only in the initial feed inlet zone(s) whereby it is stressed at pressures sufficient high to cause the formation of at least some agglomerates.
    Type: Grant
    Filed: February 21, 1990
    Date of Patent: September 17, 1991
    Assignee: Fuller Company
    Inventors: John S. Szazdi, Jr., Thomas R. Lawall
  • Patent number: 4934614
    Abstract: The grinding chamber of the apparatus has first and second grinding sections having perforate wall sections overlying the outlet of the apparatus. The perforate wall of the first grinding section underlies the rotor of the apparatus and has an arcuate shape. The perforate wall of the second grinding section extends generally tangentially upwardly and outwardly from the downstream end of the perforate wall of the first grinding section. The second grinding section is larger than the first, and may include breaker bars which deflect the material being ground toward the perforate wall of such section.
    Type: Grant
    Filed: August 9, 1989
    Date of Patent: June 19, 1990
    Assignee: Newman Machine Company, Inc.
    Inventor: Herbert H. Lewis
  • Patent number: 4905915
    Abstract: A method and apparatus for pulverizing a material such as sand to a desired particle size. The apparatus has a pulverizing shell in which the material to be pulverized is fed and pulverized. The pulverized fluid-carried material overflows the shell so as to be fed into a settling classifier, where the coarser material settles and is discharged through its bottom opening back into the shell for repulverization. The finer material overflows the classifier and is fed to an intermediate bin, which has its bottom connected to the shell through a valve. When the bin is filled up with the material, the valve is opened so that the material in the bin is returned to the shell. The material is thus circulated through the shell, classifier and intermediate bin. The shell is adapted to be alternately connected to the intermediate bin and a product collector bin by a changeover valve.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: March 6, 1990
    Assignee: Kubota, Ltd.
    Inventors: Iwao Ikebuchi, Yoshitaka Ihara, Akira Ganse, Tomio Kaneyasu
  • Patent number: 4880171
    Abstract: An improved hydropulper and mixer for pulp production and associated tasks, in particular for gently re-hydrating and separating processed fiber. The apparatus comprises a vessel, a lower chamber containing a rotatory mechanism, a rotary drive and a tube for re-circulating the slurry. A sized aperture in the bottom of the vessel, which controls vortexing and excessive swirling, opens into the chamber. The chamber safely encloses a vanned rotor which vigorously pulps the fiber while impelling the flow through an outlet and tube back to the vessel. The slurry recycles until the quality is judged satisfactory. A de-watering screen can then be introduced into the flow, saving the water for re-use, or the slurry can be redirected to another location by the same integral pumping action.
    Type: Grant
    Filed: August 19, 1988
    Date of Patent: November 14, 1989
    Inventor: Roderick D. Garrett
  • Patent number: 4877190
    Abstract: A system for collecting, drying, and comminuting garbage. The garbage is collected and introduced into a hopper. A plurality of heat lamps and sandblasting nozzles are provided on the walls of the hopper. The garbage is dried and comminuted in the hopper. A mesh conveyor is provided for filtering out particles smaller than sand which are delivered by a conveyor for further waste disposal. Particles and sand which do not pass through the mesh conveyor are fed back and delivered under pressure to the sandblasting nozzles.
    Type: Grant
    Filed: January 4, 1989
    Date of Patent: October 31, 1989
    Assignee: Waste Management Systems, Inc.
    Inventor: Cecil Lineback
  • Patent number: 4830289
    Abstract: A centrifugal fluidized grinding apparatus having balls as a grinding medium therein, comprises a parting vessel having a vertical axis, composed of inner and outer vessel parts both forming a circumferential groove. The circumferential groove has a continuous and smooth surface and provides a completely open inner space allowing the grinding medium and starting material to move freely through any part of the entire area of the inner space without encountering any obstacles. The groove has a generally ovoid profile with an upper part thereof cut away in a vertically cross-sectional view taken along a plane including the axis. The ovoid has a longitudinal axis intersecting the vertical axis at a position over the parting vessel. The inner and outer vessel parts are mounted for relative rotation about the vertical axis, in such a manner that the inner vessel part is rotated while the outer vessel part is stationary, or the latter is rotated in a reverse direction.
    Type: Grant
    Filed: August 27, 1987
    Date of Patent: May 16, 1989
    Assignee: Ube Industries, Ltd.
    Inventors: Kaoru Umeya, Kiyoshi Fujino
  • Patent number: 4790487
    Abstract: A continuous granulator includes a granulator body for continuously processing powdered materials into granules, and a screw conveyor for discharging the produced granules from the granulator body, the screw conveyor including a pneumatic classifier for separating or classifying the produced granules while they are being conveyed. The pneumatic classifier includes a porous lower portion of the screw conveyor which permits passage of streams of pressurized air therethough into the interior of the screw conveyor. With this construction, discharging conveyance of the produced granules and classification of the produced granules can be carried out concurrently at the same station and hence the granules of a uniform grain size can be produced at an increased rate.
    Type: Grant
    Filed: July 8, 1987
    Date of Patent: December 13, 1988
    Assignee: Kabushiki Kaisha Okawara Seisakusho
    Inventors: Tetsuo Noguchi, Masao Tanaka, Hiroshi Nakanishi
  • Patent number: 4778115
    Abstract: A method and apparatus fluidizes solid deposits of coal tar sludge, such as coal tar decanter sludge or coal tar tank sludge to a relatively homogeneous mixture of solids dispersed in liquid. The coal tar decanter sludge received from the coke oven, including approximately 10 to 50% by weight coal and coke solids, is conveyed into a sludge mixing vessel where it is deposited onto a liquid-permeable support member or screen having a predetermined maximum screen size. A suitable coal tar solvent in the sludge mixing vessel is heated to a temperature sufficient to partially solubilize and reduce the viscosity of the coal tar portion of the coal tar decanter sludge to provide a pumpable dispersion of solids dispersed in a diluted coal tar mixture. Agglomerates of coal and coke solids held together with coal tar fall through the screen when sufficient coal tar has solubilized and the solid agglomerates then are reduced in size for recirculation to the sludge mixing vessel.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: October 18, 1988
    Inventors: Kenneth D. Burnside, Daniel C. Deer, III
  • Patent number: 4697743
    Abstract: A method and an apparatus for finely crushing particles of material in a mill comprising feeding the material to be crushed to a first impact position, impacting and impelling the particles from the first impact position by a rotating impact surface stationary impact surface to a and accelerating the particles in a vacuum to produce a sufficiently high impact energy at the first impact surfact to crush the particles fed thereto prior to the section impact surface. The particles to be comminuted are passed through a feeding tube or channel to a crushing chamber containing a rotor having its axle parallel to the feeding tube and having first impact surfaces thereon which are arranged to be parallel with the stationary impact surface, or surfaces, at the time they impact with the particles fed to the first impact position. The outlet of the feeding tube is located at the outer periphery of the rotor.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: October 6, 1987
    Assignee: Sicomant AB Juteskarsgatan 38
    Inventors: Conny Bjorck, Per A. Sigurdsson