With Feed And/or Discharge Patents (Class 241/171)
  • Patent number: 10710207
    Abstract: A magnetic field manipulated localized polishing system includes a container holding a volume of a magnetic abrasive fluid. The magnetic abrasive fluid contains abrasive particles. A motor is positioned under the container. A magnet is coupled to the motor such that the motor induces rotation of the magnet. A workpiece is suspended in the container.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: July 14, 2020
    Assignee: The Texas A&M University System
    Inventors: Satish Bukkapatnam, Arun Srinivasa, Wayne N. p. Hung, Asif Iquebal, Thiagarajan Nagarajan, Matthew Remy Aguirre, Kaitlyn Graham
  • Patent number: 10618052
    Abstract: The media-circulation type pulverizer comprising: an agitating member disposed in a lower region of a pulverization chamber; an annular partition wall disposed to extend upwardly in the pulverization chamber; and a media guide member provided on a lower surface of the end plate of the agitating member, wherein the annular partition wall has a height set to be ? to ? of a height of the pulverization chamber, and the media guide member has a lower end which enters a space of the inner region of the pulverization chamber located inside the annular partition wall, and wherein a vertically-extending flow straightening blade is provided between said lower portion of the media guide member and an upper portion of the annular partition wall, and the media separation member is provided on the lower end of the lower portion of the media guide member.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: April 14, 2020
    Assignee: ASHIZAWA FINETECH LTD
    Inventors: Tsuyoshi Ishikawa, Yasuhiro Mitsuhashi, Takahiro Tamura, Tsubasa Nakajima
  • Patent number: 10427164
    Abstract: An insert for covering one or more selected surfaces of a discharge end assembly including a discharge end wall of a mill shell partially defined by an outer perimeter wall thereof and a number of pulp lifters mounted on the discharge end wall. The insert is formed to cover the selected surfaces to mitigate wear to which the selected surfaces are subjected when the insert is located in a predetermined position relative to the selected surfaces.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: October 1, 2019
    Assignee: Polycorp Ltd.
    Inventors: Robert Mepham, Pramod Kumar, Robert Michael McPhee
  • Patent number: 10279353
    Abstract: A mill and operating method for using grinding bodies for grinding a grinding stock. Grinding bodies that have passed through the through the product outlet enter an upwardly inclined discharge pipe from where, when the grinding body mill is at a standstill, the grinding bodies are directed out of the discharge pipe through the product outlet into a rotor body of the separating device. When operation of the grinding body mill is resumed, the grinding bodies are conveyed back into the grinding chamber owing to the rotation of the rotor body.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: May 7, 2019
    Assignee: Netzsch Trockenmahltechnik
    Inventors: Roland Nied, Lars-Peter Weiland
  • Patent number: 10173222
    Abstract: An agitator ball mill that includes agitating discs (18) on an agitating shaft drivable in a spinning direction (38), which are provided with entraining profiles (35). These entraining profiles (35) are formed by a trailing wall of a respective channel of a plurality of channels (36). In relation to the spinning direction (38) the trailing wall (39) of an inner channel section (49) runs radially straight relative to the central longitudinal axis (15) and has a length f, and has an outer bent-off channel section (41), which is bent off counter to the spinning direction (38). The outer channel sections (41) are closed radially to the outside by a peripheral portion (42) of the agitating disc (18) having a radial width e.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: January 8, 2019
    Assignee: Willy A. Bachofen AG
    Inventors: Benedikt Simons, Lionel Gross, Norbert Stehr
  • Patent number: 10081771
    Abstract: An apparatus, a system, and a method for heat treating a moisture-containing or water-laden material are provided. The heat treatment can be drying for dehydration, gasification, or full carbonization. The system comprises a feeding mechanism, and a rapid compression unit (RCU) apparatus having a screw, a barrel, and one or more flow disrupters. The system can further include a reflux condenser, an aftercooler stage, a second condenser for particle filtering, and an exit mechanism. The one or more flow disrupters are located on an inner surface of the barrel and project into the passageway created by the screw and the barrel. The screw is sized to fit within the barrel such that flow disrupter does not contact the screw. The one or more flow disrupters cause the water-laden material to fold over onto its self, thereby, allowing for the occurrence of more uniform drying.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: September 25, 2018
    Assignee: ENGINUITY WORLDWIDE, LLC.
    Inventor: Robert L. Heimann
  • Patent number: 10000224
    Abstract: The invention relates to a method and handling device for the maintenance of agitator ball mills with a horizontally disposed grinding container. The handling device comprises a transport means and at least one holding unit for machine parts of an agitator ball mill, wherein the transport means is connected to the holding unit in a detachable manner.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: June 19, 2018
    Assignee: NETZSCH-Feinmahltechnik GmbH
    Inventor: Lars-Peter Weiland
  • Patent number: 9958367
    Abstract: An apparatus for measuring rheological parameters of a multi-phase fluid is provided. The apparatus includes a static chamber containing a multi-phase fluid having at least a first phase and a second phase. The apparatus also includes a rotor member submersed in the multiphase fluid in the static chamber. The rotor member includes a first set of threads formed on a first portion of the rotor member submersed in the first phase of the multi-phase fluid and a second set of threads formed on a second portion of the rotor member submersed in the second phase of the multi-phase fluid.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: May 1, 2018
    Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRAS
    Inventors: Jitendra Sangwai, Chirag Khalde
  • Patent number: 9895697
    Abstract: [Problem] To resolve segregation of grinding media to thereby enable a large-flow-rate circulation operation while reducing wear of an agitating member and a grinding media separating member.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: February 20, 2018
    Assignee: ASHIZAWA FINETECH LTD.
    Inventors: Jiro Onuki, Yoshinori Ueno, Hiroyuki Ito
  • Patent number: 9863860
    Abstract: An apparatus for measuring rheological properties of a multi-phase fluid is provided. The apparatus includes a static chamber configured to contain a multi-phase fluid having at least a first phase and a second phase. The apparatus also includes a rotor member submersed in the multi-phase fluid in the static chamber. The rotor member is rotatable about a horizontal rotational axis within the static chamber and the static chamber and the rotor member are oriented in a substantially horizontal direction.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: January 9, 2018
    Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRAS
    Inventors: Chirag Khalde, Jitendra Sangwai
  • Patent number: 9687954
    Abstract: A centrifugal barrel includes a disc-like turret configured to turn about a revolution shaft, a plurality of barrel tanks each installed in the turret via a rotation shaft and configured to turn about the rotation shaft, a rotating mechanism configured to turn the turret and the barrel tanks, and a tilting mechanism configured to tilt the revolution shaft of the turret with respect to a horizontal plane and to tilt each rotation shaft with respect to the horizontal plane. By tilting each rotation shaft with respect to the horizontal plane, it is possible to prevent the workpieces from being damaged.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: June 27, 2017
    Assignee: Sintokogio, Ltd.
    Inventors: Kazuyoshi Maeda, Norihito Shibuya
  • Patent number: 9511374
    Abstract: It is intended to, in a horizontal dry mill, prevent blow-up and adhesion of a raw material, etc., to a raw material input section. In a horizontal dry mill (10) of the present invention, a diameter of a raw material supply section (13) provided in a grinding tank (14) is set to be less than a diameter of a grinding chamber (12). Further, a diameter of a mechanical thrust generating device of the raw material supply section (13) is set to a small value according to the diameter of the raw material supply section. Furthermore, a gap (e1) between an outside dimension of a screw (26) as the mechanical thrust generating device and an inner diameter of the grinding tank (14) in the raw material supply section (13) is set between 0.5 mm and ? of a diameter of each grinding medium M.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: December 6, 2016
    Assignee: ASHIZAWA FINETECH LTD.
    Inventors: Tsuyoshi Ishikawa, Naoki Hagiwara, Toshihiro Yamada
  • Patent number: 9505008
    Abstract: A method for dry operation of an agitator bead mill, with a mill housing that includes a grinding chamber, in which a rotatable agitator shaft extends horizontally between an input side and an output side and in which grinding media are situated. An output gas is fed into the grinding chamber on the output side, goes together with ground grist through the separation system radially with respect to the transport direction, and thus leaves the grinding chamber together with ground grist through the separation system and onward through the product output. Also disclosed is an agitator bead mill for executing the method, such that the separation system has a static sieve with a free perforated surface that is chosen in such a way that the pass-through speed of the gas leaving the agitator mill through the separation system and the product outlet amounts approximately to 10 m/s to 30 m/s.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: November 29, 2016
    Assignees: NETZSCH Trockenmahltechnik GmbH
    Inventors: Roland Nied, Hermann Sickel, Udo Enderle
  • Patent number: 9427742
    Abstract: To provide a mill that can greatly reduce noise during operation and can also contribute to greater device compactness. The mill is provided with: a tubular drum body configured in a manner so that a material to be milled introduced from one section can be discharged from another section; a central shaft that penetrates within the drum body in the direction of tube length thereof; and a plurality of milling plates that are attached at a predetermined interval in the axial direction of the central shaft, and that compartmentalize the interior space of the drum body in to a plurality of milling chambers. The drum body and/or the milling plates rotate, and the mill does not have a milling medium that mills the material to be milled by contacting the material to be milled while rolling within the drum body.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: August 30, 2016
    Assignee: DAITO DOBOKU, LTD.
    Inventor: Shigeo Yanase
  • Patent number: 9089846
    Abstract: A media-agitation pulverizer is capable of creating a uniformized, stable helicoidal flow in a mixture of pulverizing media and a raw material slurry, thereby performing pulverization/dispersion uniformly with satisfactory energy efficiency. The media-agitation pulverizer includes a guide ring installed to radially divide a lower region of a pulverization chamber into an inner section and an annular outer section, whereby a flow of a mixture of a raw material slurry and pulverizing media is formed as a helicoidal flow including a secondary flow flowing through a circulation flow path with respect to the guide ring; and rotational-flow suppressing device is provided within the pulverization chamber and adapted to strengthen the secondary flow of the helicoidal flow, thereby stabilizing the helicoidal flow.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: July 28, 2015
    Assignee: ASHIZAWA FINETECH LTD.
    Inventors: Tsuyoshi Ishikawa, Shogo Iwasawa, Takahiro Tamura
  • Publication number: 20150144718
    Abstract: There is provided an impact grinding assembly. The assembly, according to one aspect, includes a pair of conveyors for conveying at least partially unground material. Each conveyor has a lower portion and an upper portion which is spaced-apart above its lower portion. The assembly includes a pair of vibrating impact plates aligning below the upper portions of respective ones of the conveyors to receive the at least partially unground material. A first one of the impact plates operatively directs material thereon to the lower portion of a second one of the conveyors. A second one of the impact plates operatively directs material thereon to the lower portion of a first one of the conveyors. The impact grinding assembly may further include a material-separation assembly for removing material from the conveyors which has a particle size no greater than a desired particle size.
    Type: Application
    Filed: November 28, 2013
    Publication date: May 28, 2015
    Inventor: Carey Hunker
  • Patent number: 8814071
    Abstract: An agitator ball mill having a milling chamber and an agitator having a rotatably mounted and driven agitator shaft and accelerators arranged thereupon, wherein the accelerator that is arranged furthest downstream, that is, the accelerator closest to the milling material outlet, lengthens axially and extends along the axial length of the sieve.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: August 26, 2014
    Assignee: Willy A. Bachofen AG
    Inventors: Erich Jeker, Frank Ronald Lang, Marc Weider
  • Patent number: 8794558
    Abstract: An agitator ball mill with a cylindrical grinding container is disclosed. The grinding container includes at least one grinding stock inlet and at least one grinding stock outlet. An agitator shaft connected to a drive is disposed in the grinding container. The agitator shaft transmits a part of the drive energy of the drive to the auxiliary grinding bodies. The auxiliary grinding bodies are distributed loosely in the grinding container. Furthermore, the agitator ball mill includes a separation device assigned to the grinding stock outlet, wherein the separation device is disposed around a rotational axis and/or rotates around this rotational axis. The separation device includes at least two components, whereof one component is at least one separation device and a second component is a dynamic element for generating a material flow.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: August 5, 2014
    Assignee: Netzsch-Feinmahltechnik GmbH
    Inventors: Horst Pausch, Jan Wolfrum
  • Publication number: 20140151473
    Abstract: A pulper with a shaft on which a spiral is arranged has been improved to such an extent that it comprises a shaft with a counter-rotating spiral. Preferably both spirals are arranged on the same shaft. This results in extreme friction in the centre of the reaction space of the pulper and thus in an increase in the capacity of the pulper and in an improvement to achieve highly efficient suspension.
    Type: Application
    Filed: July 18, 2012
    Publication date: June 5, 2014
    Inventor: Hans-Joachim Boltersdorf
  • Patent number: 8733677
    Abstract: A media basket mill utilizes a media bed having very small media to attain a mixture of finely divided solids in a liquid vehicle. A method and an improvement for deterring wear at a bearing construct in the media basket mill precludes the entry into a bearing interface between a bearing surface of the bearing construct and a component rotating within the bearing construct of the very small media employed in the media basket mill. A barrier is interposed between the media held in the basket of the mill and the bearing interface so as to isolate the bearing interface from media within the basket and thereby deter the entry of media into the bearing interface and concomitant wear at the bearing interface.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: May 27, 2014
    Assignee: Hockmeyer Equipment Corp.
    Inventors: Michael A. Villardi, Shawnacy D. McManus, Herman H. Hockmeyer
  • Patent number: 8702023
    Abstract: The agitator ball mill according to the invention for grinding dry or non-dry substances is provided with a grinding container. The grinding container is provided with an inlet for the material to be ground, a fluid inlet and a material outlet, wherein the outlet region is provided with a screen. Running in the center or in the vicinity of the center of the grinding container is an agitator shaft, on which a plurality of grinding elements are disposed. The grinding container is at least partially filled with auxiliary grinding bodies. A first cage is assigned to the inlet region of the agitator ball mill and a second cage to the outlet region.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: April 22, 2014
    Assignee: Netzch-Feinmahltechnik GmbH
    Inventor: Udo Enderle
  • Publication number: 20130026270
    Abstract: The employed feed element in a grinding body feed apparatus of a grinding mill is the grinding bodies supply tank proper, in which the grinding bodies are charged from a ball hopper or storage. In connection with the supply tank, there is provided a grinding bodies discharge element, by means of which the grinding bodies are conducted to a duct serving as a feed chute and leading to the grinding mill, and via said duct, to the grinding mill proper. The opening and closing of the supply tank is carried out by external, opposing control elements that encircle the drum element of the supply tank in relation to its frame. By means of the feed device, it is possible to feed one ball at a time to the mill, in which case a correct number of balls can be supplied.
    Type: Application
    Filed: April 11, 2011
    Publication date: January 31, 2013
    Applicant: OUTOTEC OYJ
    Inventors: Simo Fransas, Yongsun Bae, Ilkka Rekolainen, Johannes Pylvänen, Kaur Jaakma, Markus Strandvall, Pasi Pohjola, Ali Salomäki, Jouni Hyttinen
  • Publication number: 20120267463
    Abstract: A vibratory mill principally for the treatment of cement and fly ash, which mill has a grinding chamber (1) with a wall (6, 7) at each of the two ends of the chamber, which mill includes an inlet (2) for material that is to be treated and an outlet (3) at the rear wall (7) of the grinding chamber (1), at the lower part of the grinding chamber, and a first wall (5) inside the chamber at the end at which the outlet (3) is located, which wall (5) is provided with one or several openings (8) at its upper part, which openings allow passage of material that has been sufficiently ground from the grinding chamber to the outlet (3). The inlet (2) is located in the lower part of the grinding chamber (1) at the wall (6) that is opposite to the location of the outlet.
    Type: Application
    Filed: April 27, 2011
    Publication date: October 25, 2012
    Applicant: PROCEDO ENTERPRISES ETABLISSEMENT
    Inventor: Vladimir RONIN
  • Patent number: 8205817
    Abstract: A bead mill for performing wet comminuting including a stationary vessel having an internal wall and forming a milling chamber to be filled at least partly with milling bodies, raw particles and a carrying liquid to form a suspension within the milling chamber; an activator shaft, rotatable around an axis concentric with the stationary vessel and a rotating activator connected to the activator shaft, to comminute said raw particles to produce milled particles; characterized in that said bead mill further comprises a separator, containing a separator chamber disposed substantially vertically, a laminarization portion providing an upward laminar suspension flow within the separator chamber, to separate the milled particles from the milling beads and raw particles depending on the flow velocity of said upward laminar suspension flow.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: June 26, 2012
    Assignee: Frewitt Fabrique de Machines SA
    Inventors: Edward Brook-Levinson, Boris Petrov, Thierry Jomini
  • Patent number: 8172169
    Abstract: Disclosed is a media-agitation type pulverizer, which is enabled to acquire products of high quality by excellent pulverizing/dispersing actions. The media-agitation type pulverizer comprises a grinding container having a material entrance and a spherical grinding chamber, an agitating member disposed rotatably in the grinding chamber and near the inner wall of the grinding container, grinding media contained in the grinding chamber, and a centrifugal-type media-separating member rotatably disposed in the grinding chamber and in opposed relation to the agitating member.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: May 8, 2012
    Assignee: Ashizawa Finetech Ltd.
    Inventor: Tsuyoshi Ishikawa
  • Patent number: 8118247
    Abstract: An agitator ball mill for finely grinding or dispersing material has a cylindrical or conical grinding chamber for accommodating grinding bodies and for accommodating the material which is to be ground or dispersed. It also has an inlet, which is arranged at one end of the grinding chamber, an agitator, which extends in the axial direction into the grinding chamber and has agitating means, and a product outlet for the ground or dispersed material, the product outlet being arranged at the other end of the grinding chamber. Arranged in a central region at the outlet end of the grinding chamber is a gas outlet through which gaseous components, but not grinding bodies, can be discharged out of the grinding chamber.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: February 21, 2012
    Assignee: Willy A. Bachofen AG
    Inventors: Frank Ronald Lang, Marc Weider, Erich Jeker
  • Patent number: 8047459
    Abstract: For use in a basket mill having a process vessel in which particles are ground so as to reduce their size, a basket for retaining a grinding medium, having an opening in its top and a screen at its bottom. A first shaft extends into the basket and has a grinding assembly extending from the shaft. A first drive apparatus rotates the first shaft at a first rotational rate. A second shaft is coaxial with the first shaft and has an impeller for causing material to be ground to move into the basket through the opening and out of said basket through the screen. A second drive apparatus rotates the second shaft at a second rotational rate independent of the first rotational rate. The first shaft may be a tube. A tube may be disposed within the first shaft, and have at its end a bushing for receiving for rotation the second shaft. The bushing may be located outside of a region of the basket where grinding media is disposed. Methods for operating the apparatus.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: November 1, 2011
    Inventor: Edward D'Errico
  • Patent number: 8028943
    Abstract: An agitating ball mill includes a comminution vessel surrounding an agitating shaft which is provided with a product inlet and a product outlet, wherein the comminution media located within the comminution vessel is activated through the rotation of the agitating shaft and held back in the comminution chamber by a separating and/or pre-classifying device. For optimum energy and space utilization a pre-crushing device is arranged upstream of the comminution chamber. The pre-crushing device includes either a static or dynamic gap guard.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: October 4, 2011
    Assignee: NETZSCH—Feinmahltechnik GmbH
    Inventor: Theron Harbs
  • Patent number: 8002213
    Abstract: An agitator mill has a grinding vessel and an agitator shaft arranged such that it can be driven to rotate therein. Fixed at the end of the agitator shaft is a last agitator disc, on which is fixed a substantially cylindrical cage having apertures. Arranged inside the cage is a screening device. The distance between a second to last agitator disc and the last agitator disc is such that a braided flow forms, while avoiding a preliminary screening of grinding stock on one hand and auxiliary grinding bodies and coarse grinding stock particles on the other hand. Formed in the last agitator disc are passages through which the grinding stock passes together with the auxiliary grinding bodies, at which time a separation of the auxiliary grinding bodies and the coarse grinding stock particles takes place within the separating chamber formed by the last agitator disc and the cage.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: August 23, 2011
    Assignee: Büler AG
    Inventor: Norbert Stehr
  • Patent number: 7931222
    Abstract: An agitator mill for treating free-flowing grinding stock has a grinding receptacle and an interior stator disposed therein. A rotatably drivable annular cylindrical rotor is disposed between the interior stator and the receptacle wall, with a grinding chamber being defined between said rotor and the receptacle wall. A grinding-stock discharge conduit is formed between the rotor and the interior stator (22) which is connected to the grinding chamber by means of a deflection conduit. Devices are provided for preventing the carry-over of auxiliary grinding bodies from the grinding chamber into the grinding-stock discharge conduit.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: April 26, 2011
    Assignee: Bühler AG
    Inventors: Norbert Stehr, Philipp Schmitt
  • Publication number: 20110036935
    Abstract: An agitator mill has a grinding vessel and an agitator shaft arranged such that it can be driven to rotate therein. Fixed at the end of the agitator shaft is a last agitator disc, on which is fixed a substantially cylindrical cage having apertures. Arranged inside the cage is a screening device. The distance between a second to last agitator disc and the last agitator disc is such that a braided flow forms, while avoiding a preliminary screening of grinding stock on one hand and auxiliary grinding bodies and coarse grinding stock particles on the other hand. Formed in the last agitator disc are passages through which the grinding stock passes together with the auxiliary grinding bodies, at which time a separation of the auxiliary grinding bodies and the coarse grinding stock particles takes place within the separating chamber formed by the last agitator disc and the cage.
    Type: Application
    Filed: August 17, 2007
    Publication date: February 17, 2011
    Inventor: Norbert Stehr
  • Patent number: 7883041
    Abstract: Disclosed is a media mixing mill, which is capable of obtaining a high-quality product while ensuring adequate pulverization/dispersion functions. The media mixing mill of the present invention includes a grinding container having a material inlet and a spherical-shaped grinding chamber, an agitating member rotatably installed inside the grinding chamber and in adjacent relation to an inner wall of the grinding container, grinding media contained in the grinding chamber, and a centrifugal-type media-separating member rotatably disposed inside the grinding chamber and in opposed relation to the agitating member.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: February 8, 2011
    Assignee: Ashizawa Finetech Ltd.
    Inventor: Tsuyoshi Ishikawa
  • Patent number: 7883036
    Abstract: The containment wall of a basket media mill is constructed of a sintered porous metal having porous openings each of a pore size less than the predetermined size of the media for confining the media within the bed in the basket as feedstock is passed through the porous openings in the containment wall. The containment wall extends over an overall area and the porous openings provide an open area through which the feedstock flows as the feedstock passes through the containment wall, and the open area is at least about twenty-one percent of the overall area of the containment wall for enabling a concomitant increased volumetric flow of feedstock through the containment wall. A substantially flat sheet of sintered porous metal having porous openings is formed into a cylindrical configuration to construct a cylindrical containment wall with porous openings each increasing in pore size from the interior of the cylindrical wall toward the exterior of the cylindrical wall.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: February 8, 2011
    Assignee: Hockmeyer Equipment Corp.
    Inventors: Barry W. Cullens, Herman H. Hockmeyer
  • Publication number: 20110000993
    Abstract: An agitator ball mill for finely grinding or dispersing material has a cylindrical or conical grinding chamber for accommodating grinding bodies and for accommodating the material which is to be ground or dispersed. It also has an inlet, which is arranged at one end of the grinding chamber, an agitator, which extends in the axial direction into the grinding chamber and has agitating means, and a product outlet for the ground or dispersed material, the product outlet being arranged at the other end of the grinding chamber. Arranged in a central region at the outlet end of the grinding chamber is a gas outlet through which gaseous components, but not grinding bodies, can be discharged out of the grinding chamber.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 6, 2011
    Applicant: Willy A. Bachofen AG
    Inventors: Frank Ronald Lang, Marc Weider, Erich Jeker
  • Patent number: 7845589
    Abstract: Agitating ball mill with a cylindrical grinding vessel comprising at least one grinding stock inlet and at least one grinding stock outlet wherein in the grinding vessel an agitating shaft connected with a drive is arranged which transmits a part of the drive energy to auxiliary grinding bodies which are loosely arranged in the grinding vessel and a separating device arranged in front of the grinding vessel outlet.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: December 7, 2010
    Assignee: Netzsch-Feinmahltechnik GmbH
    Inventor: Horst Pausch
  • Publication number: 20100282884
    Abstract: An agitator mill for treating free-flowing grinding stock has a grinding receptacle and an interior stator disposed therein. A rotatably drivable annular cylindrical rotor is disposed between the interior stator and the receptacle wall, with a grinding chamber being defined between said rotor and the receptacle wall. A grinding-stock discharge conduit is formed between the rotor and the interior stator (22) which is connected to the grinding chamber by means of a deflection conduit. Devices are provided for preventing the carry-over of auxiliary grinding bodies from the grinding chamber into the grinding-stock discharge conduit.
    Type: Application
    Filed: July 20, 2010
    Publication date: November 11, 2010
    Applicant: Buhler AG
    Inventors: Norbert Stehr, Philipp Schmitt
  • Patent number: 7828234
    Abstract: The containment wall of a basket media mill is constructed of a porous synthetic polymeric material having porous openings each of a pore size less than the predetermined size of the media for confining the media within the bed in the basket as feedstock is passed through the porous openings in the containment wall. The containment wall extends over an overall area and the porous openings provide an open area through which the feedstock flows as the feedstock passes through the containment wall, and the open area is at least about fifteen percent of the overall area of the containment wall for enabling a concomitant increased volumetric flow of feedstock through the containment wall. A substantially flat sheet of porous synthetic polymeric material having porous openings is formed into a cylindrical configuration to establish a cylindrical containment wall with porous openings each increasing in pore size from the interior of the cylindrical wall toward the exterior of the cylindrical wall.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: November 9, 2010
    Inventors: Herman H. Hockmeyer, Barry W. Cullens
  • Patent number: 7828238
    Abstract: A media-agitation type wet disperser is provided which eliminates the group motion of media, attains high dispersion efficiency, and avoids wear problem. A cylindrical vessel having a feed opening for the treating material and a discharge opening for the treated material is equipped with a cylindrical separator and a rotor rotating while being fixed to a rotary shaft. The rotor is composed of pluralities of small rotors each having a cylindrical agitation part and a disk-shaped holding part. The agitation part has pluralities of throughholes connecting the inside and the outside thereof.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: November 9, 2010
    Assignee: Nippon Coke & Engineering Co., Ltd.
    Inventor: Susumu Gunji
  • Patent number: 7823818
    Abstract: A system and a method for producing a quantified defined portions of powder from at least one biological material at cryotemperature is shown, comprising means for grinding the biological material deposited in at least one first vessel to the powder; means for loosening the powder resulting from grinding the biological material in the first vessel; means for positioning at least one first opening in the first vessel, and means for transferring the quantified defined portions of powder in a plurality of second vessels by using the first opening as a transfer way.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: November 2, 2010
    Assignee: Max-Planck-Gessellschaft zur Foerderung der Wissenschafter E.V.
    Inventors: Mark Stitt, Ronan Sulpice, Yves Gibon
  • Publication number: 20100270408
    Abstract: Disclosed is a media-agitation type pulverizer, which is enabled to acquire products of high quality by excellent pulverizing/dispersing actions. The media-agitation type pulverizer comprises a grinding container having a material entrance and a spherical grinding chamber, an agitating member disposed rotatably in the grinding chamber and near the inner wall of the grinding container, grinding media contained in the grinding chamber, and a centrifugal-type media-separating member rotatably disposed in the grinding chamber and in opposed relation to the agitating member.
    Type: Application
    Filed: April 13, 2010
    Publication date: October 28, 2010
    Inventor: Tsuyoshi Ishikawa
  • Publication number: 20100206972
    Abstract: A sand wheel seal for a grinding mill, which in use is internally disposed within said mill. Preferably the sand wheel seal is integrally formed with a mill throat liner wheel and may be releasably secured to a feed end of said mill. The grinding mill may be any one of a Sag, Ag, Ball or Rod mill.
    Type: Application
    Filed: April 10, 2008
    Publication date: August 19, 2010
    Inventor: Dale CORAY
  • Publication number: 20100102151
    Abstract: The invention relates to a vertical grinding mill comprising a closed vertical milling container in which a screw conveyor is arranged for rotary drive so as to convey grinding bodies to the top. The package of grinding bodies adjusts itself during operation such that the surface thereof is configured to slope radially outwards and downwards and to end in the region of the bottom edge of an outlet for grinding stock. Gas is introduced into the milling container above the package of grinding bodies. The gas and grinding stock are discharged from the milling container via the outlet for grinding stock.
    Type: Application
    Filed: January 4, 2008
    Publication date: April 29, 2010
    Applicant: Maschinenfabrik Gustav Eirich GmbH & Co. KG
    Inventors: Stefan Gerl, Jens Sachweh
  • 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
  • Patent number: 7591440
    Abstract: Methods and systems for controlling a cement finishing mill, and operating the mill at an optimal point, are disclosed. To determine an optimal point of operation, values of mill power and sound are collected and compared to values predicted by a model to determine if the mill is choking. This choking determination is used in one of two processes to determine an optimal point of operation for the mill. In the first process, as long as the mill is not choking, the amount of fresh feed input to the mill is incrementally increased; when choking occurs, the amount of fresh feed is decreased until choking ceases. In the second process, the amount of fresh feed input to the mill is increased and decreased in an oscillating manner over time, to find the amount of feed that results in the mill approaching, but never reaching, a choking state.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: September 22, 2009
    Assignee: Invensys Systems, Inc.
    Inventors: Alan Morrow, Fayyaz Hussain, Lewis Gordon, Randy Dwiggins
  • Patent number: 7588205
    Abstract: The object of the present invention is to provide a medium agitation mill which is responsive to the standstill of the mill for preventing the pulverizing medium from invading the inside space of the longitudinal hollow space of the drive shaft of the impeller. In the medium agitation mill the medium separating impeller is arranged in the inside space of the agitating member, and the impeller has a plurality of vanes circumferentially arranged at intervals, and is driven by the hollow drive shaft, one end of which opens to the inside of the impeller to provide the raw material discharging port. The discharging port is provided with an on-off valve of a resilient material to open and close the discharging port.
    Type: Grant
    Filed: November 23, 2007
    Date of Patent: September 15, 2009
    Assignee: Ashizawa Finetech Ltd.
    Inventors: Tsuyoshi Ishikawa, Jiro Onuki, Yasuhiro Mitsuhashi, Kaori Harigai
  • Publication number: 20090179099
    Abstract: An agitator mill for treating free-flowing grinding stock has a grinding receptacle and an interior stator disposed therein. A rotatably drivable annular cylindrical rotor is disposed between the interior stator and the receptacle wall, with a grinding chamber being defined between said rotor and the receptacle wall. A grinding-stock discharge conduit is formed between the rotor and the interior stator (22) which is connected to the grinding chamber by means of a deflection conduit. Devices are provided for preventing the carry-over of auxiliary grinding bodies from the grinding chamber into the grinding-stock discharge conduit.
    Type: Application
    Filed: October 11, 2005
    Publication date: July 16, 2009
    Applicant: Bühler AG
    Inventors: Norbert Stehr, Philipp Schmitt
  • Patent number: 7559493
    Abstract: A media basket mill utilizes a media bed having very small media to attain a mixture of finely divided solids in a liquid vehicle. A bearing construct which journals the rotor of the basket mill within the basket of the mill includes a bearing which is protected against excessive wear by including a recess in the rotor. The recess is juxtaposed with the bearing and communicates with the media bed such that upon rotation of the rotor to pass feedstock through the media bed for a mixing operation, media and feedstock in the vicinity of the bearing will be directed from the recess into the bed of media and feedstock outside the rotor, thereby diverting media and feedstock away from the bearing and deterring excessive wear which might otherwise result from media and feedstock interacting with the bearing during rotation of the rotor for the mixing operation.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: July 14, 2009
    Assignee: Hockmeyer Equipment Corp.
    Inventors: Herman H. Hockmeyer, Barry W. Cullens
  • Publication number: 20090101738
    Abstract: A system and a method for producing a quantified defined portions of powder from at least one biological material at cryotemperature is shown, comprising means for grinding the biological material deposited in at least one first vessel to the powder; means for loosening the powder resulting from grinding the biological material in the first vessel; means for positioning at least one first opening in the first vessel, and means for transferring the quantified defined portions of powder in a plurality of second vessels by using the first opening as a transfer way.
    Type: Application
    Filed: October 17, 2007
    Publication date: April 23, 2009
    Applicant: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e. V .
    Inventors: Mark Stitt, Ronan Sulpice, Yves Gibon
  • Publication number: 20090072060
    Abstract: Agitating ball mill with a cylindrical grinding vessel comprising at least one grinding stock inlet and at least one grinding stock outlet wherein in the grinding vessel an agitating shaft connected with a drive is arranged which transmits a part of the drive energy to auxiliary grinding bodies which are loosely arranged in the grinding vessel and a separating device arranged in front of the grinding vessel outlet.
    Type: Application
    Filed: September 5, 2008
    Publication date: March 19, 2009
    Inventor: Horst Pausch
  • Publication number: 20090072057
    Abstract: The invention relates to a method for the comminuting of natural or synthetic mineral products having a size of 10 nm to 30 mm, which are obtained from the upstream process in pre-comminuted form for example in a roller mill for inter-particle comminution, wherein these solids are further comminuted in a working process initially dry then wetted with liquid and in this liquid are comminuted so as to obtain a suspension that can be pumped, which suspension is subsequently ground to the desired final fineness by means of agitating mills.
    Type: Application
    Filed: September 16, 2008
    Publication date: March 19, 2009
    Inventor: Udo Enderle