Selective Or Differential Comminution Of Mixed Or Bonded Solids Patents (Class 241/14)
  • Patent number: 9656411
    Abstract: A separating device separates liquid absorbent fibers from a material including the liquid absorbent fibers of an absorbent article and impurities. The separating device includes: a case; an insertion port for inserting the material into the case on an airflow; a rotation member in the case for agitating and opening the material; and a discharge port for discharging the liquid absorbent fibers from inside the case on an airflow. The rotation member rotates around a center axis from the insertion port to the discharge port, and the rotation member has protruding sections protruding outward in a direction that intersects with the center axis in a plurality of positions in the axial direction. A regulating member is provided in a predetermined position between the insertion port and the discharge port in the case, and the regulating member regulates movement of the material from the insertion port to the discharge port.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: May 23, 2017
    Assignee: UNICHARM CORPORATION
    Inventors: Tomoki Hayashi, Hidetaka Oyama, Masashi Kagawa
  • Patent number: 9469050
    Abstract: A separation device includes a first shredding unit, a first separation unit, and a first air pipe. The first shredding unit shreds a processing target containing a first material and a second material. The first separation unit rotates a first tubular portion in a state in which the processing target shredded by the first shredding unit is accommodated therein, thereby separating the second material passing through first holes from the processing target. The first air pipe transfers the processing target shredded by the first shredding unit to the first separation unit with air pressure. The first air pipe has a first portion that extends in a first direction, and a second portion that is connected to the first portion on a downstream side of the first portion and that extends in a second direction substantially orthogonal to the first direction.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: October 18, 2016
    Assignee: DAIKI CO., LTD.
    Inventors: Hiroshi Ito, Shinobu Hatanaka, Junji Yoshinaga, Hiroyuki Ando
  • Patent number: 9387535
    Abstract: The invention is an apparatus and method for safely depressurizing milling vials. The invention utilizes a machinist vise in communication with a pneumatic air cylinder mounted in a jig inside glove box enclosure. The invention utilizes a method for safely depressurizing milling vials. The milling vials are placed into the machinist vise inside the enclosure. The ram of the pneumatic air cylinder is placed on top of the milling vial and the pneumatic air cylinder is pressed firmly against the cap of the milling vial. Next, the air inside the enclosure is evacuated of atmosphere after which the pressure is slowly released from the pneumatic air cylinder. During this stage of the method the operator is a safe distance from the enclosure. As pressure is removed from the pneumatic air cylinder the ram is retracted and the cap of milling vial is removed.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: July 12, 2016
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Kristopher A. Darling, Micah J. Gallagher, Anthony J. Roberts, Laszlo J. Kecskes
  • Patent number: 8906119
    Abstract: Disclosed are novel engineered fuel feed stocks, feed stocks produced by the described processes, and methods of making the fuel feed stocks. Components derived from processed MSW waste streams can be used to make such feed stocks which are substantially free of glass, metals, grit and noncombustibles. These feed stocks are useful for a variety of purposes including as gasification and combustion fuels.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: December 9, 2014
    Assignee: Accordant Energy, LLC
    Inventors: James W. Bohlig, Dingrong Bai
  • Patent number: 8828105
    Abstract: Disclosed are novel engineered fuel feed stocks, feed stocks produced by the described processes, and methods of making the fuel feed stocks. Components derived from processed MSW waste streams can be used to make such feed stocks which are substantially free of glass, metals, grit and noncombustibles. These feed stocks are useful for a variety of purposes including co-firing with coal and as substitutes for coal.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: September 9, 2014
    Assignee: Accordant Energy, LLC
    Inventors: Paula A. Calabrese, Dingrong Bai
  • Publication number: 20140197253
    Abstract: A system and method for separating polymer components of a multi-component article, such as a shoe, is presented. The described system and method exploits the differences in embrittlement and glass transition temperature of different polymer components of the multi-component article by cryogenically freezing the prepared article and impacting the article such that one polymer component is pulverized without substantially fracturing the remaining portion of the article. The system and method further includes a re-looping capability to maximize separation and recovery of polymer components.
    Type: Application
    Filed: January 17, 2013
    Publication date: July 17, 2014
    Applicant: Nike, Inc.
    Inventors: Simon Lofts, Graham Stevens, Nat Egosi
  • Patent number: 8657216
    Abstract: A machine and a method for providing substrate for use in manufacturing of biogas. The machine is provided with an intake for input of moist and dry organic waste to the machine's interior chamber, where the organic waste may contain foreign bodies such as soft packaging, metal, glass, etc., a rotating shaft located in the chamber and provided with at least one tool which has a blunt shape, a stationary part mounted in the chamber acting as the tool's counter-tool, an outlet for milled particles, and an ejector for foreign bodies. The distance between the tool and the stationary part is such that the solid parts are milled into smaller pieces, while a milling effect on softer parts is prevented.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: February 25, 2014
    Assignee: Norsk Biogass AS
    Inventor: Bjørn Bu
  • Publication number: 20140034761
    Abstract: Disclose is a method for preparing a cathode material for a lithium secondary battery, the method comprising the steps of: preparing an amorphous silicon oxide; using the prepared silicon oxide as a starting material; and milling the amorphous silicon oxide, a lithium silicon oxide and a transition metal silicon oxide at a predetermined ratio, drying the milled material, and heat-treating the dried material in an atmosphere of inert gas, thereby preparing a lithium transition metal silicon oxide.
    Type: Application
    Filed: October 17, 2012
    Publication date: February 6, 2014
    Applicant: INSTITUTE FOR ADVANCED ENGINEERING
    Inventors: Hyun Soen HONG, Yun-Ho JIN, Kun Jae LEE
  • Patent number: 8523962
    Abstract: Disclosed are novel engineered fuel feed stocks, feed stocks produced by the described processes, and methods of making the fuel feed stocks. Components derived from processed MSW waste streams can be used to make such feed stocks which are substantially free of glass, metals, grit and noncombustibles. These feed stocks are useful for a variety of purposes including as gasification and combustion fuels.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: September 3, 2013
    Assignee: MPH Energy LLC
    Inventors: James W. Bohlig, Dingrong Bai
  • Patent number: 8500047
    Abstract: A method and a device for removing backing adhesive, typically a mixture of CaCO3 3 and SBR, from a carpet. The method includes: (a) sorting the carpets into different categories according to the materials from which the fibers of the carpets are made; (b) removing the bottom layer from a sorted carpet; and (c) removing the backing adhesive by grinding it off the carpet with a grinder until all the adhesive is removed and the fibers of the carpet become loss, which is then collected for recycle. The device is specifically designed to perform the above method and includes a grinder, a feeding device and a pressing wheel device on a frame. The feeding device has an active roller and a passive roller positioned on a support base.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: August 6, 2013
    Inventor: Chengjin Yu
  • Publication number: 20130181075
    Abstract: Methods and system for recovering metals from combustion ash containing ferrous and nonferrous metals, including the steps of providing a feedstock source of ash, comminuting the ash to substantially reduce the particle size and liberate metal particles therein, separating the metal particles from the comminuted ash by particle size to obtain ash with a reduced metal content, at least one ferrous product and at least one nonferrous product.
    Type: Application
    Filed: October 11, 2012
    Publication date: July 18, 2013
    Applicant: MATERIALS RECOVERY COMPANY
    Inventor: MATERIALS RECOVERY COMPANY
  • Publication number: 20130181076
    Abstract: The invention relates to a process for the simultaneous preconcentration and preselection of at least one group of used polymer materials of various compositions, as a mixture with one another and with contaminant materials, originating from the destruction, by grinding, of durable consumer goods that have reached the end of life, which can be recycled in the fields of plastics processing. This process is characterized in that it comprises, in order, a) a step of separation in a hydraulic medium, the density of which is adjusted to a value ds between 1.100 and 1.900, b) a step of separation of the supernatant fraction from a), a step of grinding c) the supernatant fraction from b), then a step d) of mechanical separation of the fraction originating from c) followed by a wetting step e) and a final step f) delivering preconcentrated and preselected used synthetic polymer materials.
    Type: Application
    Filed: July 19, 2011
    Publication date: July 18, 2013
    Applicant: GALLOO PLASTICS
    Inventors: Hugues De Feraudy, Henri Seinera
  • Patent number: 8480801
    Abstract: [Object] Providing a solidified ceramic body with an improved mechanical strength, wherein the solidified ceramic body is fabricated by activating ceramic powder through mechanochemical treatment and solidifying the activated ceramic powder through alkali treatment. [Method of Solution] Activated ceramic powder having mechanochemically amorphized surfaces is obtained by grinding ceramic powder which is composed of silicic acid and/or silicate at least at surfaces thereof (grinding process). Inorganic fibers and/or plastic fibers are added to the activated ceramic powder and are mixed with the activated ceramic powder (mixing process), and a solidified ceramic body is obtained by adding alkali water solution containing alkaline metal hydroxide and/or alkaline earth metal hydroxide to the powder (alkali treatment process).
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: July 9, 2013
    Assignee: National University Corporation Nagoya Institute of Technology
    Inventors: Masayoshi Fuji, Tomohiro Yamakawa, Minoru Takahashi
  • Patent number: 8459578
    Abstract: A prescription label identity peeler includes a box-shaped housing. A lid extends over the box-shaped housing. A sanding member is adjustably carried within the box-shaped housing. A pair of linkage arms is pivotally extend between the lid and the sanding member. The motorized linkage arms will move the sanding member simultaneously and horizontally against the empty pill bottle in an inverted position, while the wheel on the swing arm assembly will contact a bottom end of the empty pill bottle via compression of the springs, thereby removing the label from the empty pill bottle when the inverted empty pill bottle rotates.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: June 11, 2013
    Inventor: Troy Fischer
  • Patent number: 8410245
    Abstract: Solid-state shear pulverization of semi-crystalline polymers and copolymers thereof and related methods for enhanced crystallization kinetics and physical/mechanical properties.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: April 2, 2013
    Assignee: Northwestern University
    Inventors: John M. Torkelson, Cynthia Pierre, Amanda Flores
  • Patent number: 8348184
    Abstract: A waterless method of processing coal to remove impurities therefrom includes drying a batch of coal to remove moisture therefrom, pulverizing the coal into individual coal particles to liberate impurity particles from the coal and without substantially reducing the size of the impurity particles, and separating the impurity particles and pulverized coal particles into respective product streams via air classification. The dryer includes a plurality of rotating paddles, and an air stream forces the coal through the plurality of rotating paddles to pulverize the coal into individual particles and liberate the impurities.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: January 8, 2013
    Assignee: Robbins & Avant Mineral Ventures, LLC
    Inventors: David M. Avant, Jr., Riley D. Robbins
  • Patent number: 8349034
    Abstract: Disclosed are novel engineered fuel feed stocks, feed stocks produced by the described processes, and methods of making the fuel feed stocks. Components derived from processed MSW waste streams can be used to make such feed stocks which are substantially free of glass, metals, grit and noncombustibles. These feed stocks are useful for a variety of purposes including co-firing with coal and as substitutes for coal.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: January 8, 2013
    Assignee: Re Community Energy, LLC
    Inventors: Paula A. Calabrese, Dingrong Bai
  • Patent number: 8343562
    Abstract: The present invention describes a method and apparatus for aqueous extraction of chemical compounds from solid material in which the solid material is entrained in an extraction liquid phase that flowed around immersed sonotrodes emitting radial or focused high energy ultrasonic waves. A significant increase in extracted material and decreases in extraction time is observed.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: January 1, 2013
    Assignee: Cavitus Pty Ltd
    Inventors: Darren M. Bates, Arthur R. McLoughlin, Andrew Sin Ju Yap
  • Patent number: 8283035
    Abstract: A process for obtaining rubber pellets from used tires is described, the process comprises a series of steps which take account of the structure of a tire, and among which are mainly: collecting used tires having a tread and lateral faces, in which the tread includes an inner layer and an outer layer; and each lateral face includes a flange at the inner edge thereof; separating the tread from the lateral faces; cutting the tread transversely through the inner layer and the outer layer in order to form a strip from the tread; cutting the strip in order to form pellets therefrom; detaching the flange from the separated lateral faces; and cutting the flange-less lateral faces in order to form pellets therefrom.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: October 9, 2012
    Inventor: Gerardo Pagaza-Melero
  • Patent number: 8220728
    Abstract: In a facility and a method for separating glass residues from PVB-film, comminuted material is passed through several process steps, where treating with beaters (12) in a chamber (2) is effected in one of the first steps. At the discharge end (18) of the chamber there is arranged a separation, as heavy particular material can be discharged through a perforated bottom section (19) in the chamber (2). Through an air inlet (22) at the side (15) of the chamber, air is drawn in induced by a ventilator-like impeller rotor (28) drawing air in through a central opening (26) spaced apart from the bottom section (19). Thereby, light film-like materials are carried away from the heavy particles.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: July 17, 2012
    Assignee: SHARK Solutions A/S
    Inventor: Bent Eriksen
  • Patent number: 8157193
    Abstract: A waterless method of processing coal to remove impurities therefrom includes drying a batch of coal to remove moisture therefrom, pulverizing the coal into individual coal particles to liberate impurity particles from the coal and without substantially reducing the size of the impurity particles, and separating the impurity particles and pulverized coal particles into respective product streams via air classification. The dryer includes a plurality of rotating paddles, and an air stream forces the coal through the plurality of rotating paddles to pulverize the coal into individual particles and liberate the impurities.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: April 17, 2012
    Assignee: Robbins & Avant Mineral Ventures, LLC
    Inventors: David M. Avant, Jr., Riley D. Robbins
  • Patent number: 8146841
    Abstract: Clean glass particles are produced from post-consumer mixed glass and like waste streams by a series of pulverizing, size- and material-based separation, ozonation, drying, sizing, and paper fluff removal steps.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: April 3, 2012
    Assignee: Glass Processing Solutions, LLC
    Inventor: Cynthia Andela
  • Patent number: 8101675
    Abstract: A process is disclosed for producing a polyester in powder form, which process comprises: (a) rendering a polyester comminutable by (i) chemical pre-treatment of the polyester, or (ii) irradiating the polyester; and (b) comminuting the polyester produced in step (a) to form a powder.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: January 24, 2012
    Assignee: Cleansors Limited
    Inventor: Ralph Edmund Harris
  • Patent number: 8079370
    Abstract: A system is used for removal of impurities from shredded tobacco recovered from defective cigarettes, especially activated carbon particles, as used in a machine for recovering tobacco and having separating sieves and suction devices, where in a transport zone for a mixture of shredded tobacco, paper and impurities, positioned directly downstream the device for final tearing of the cigarette paper, with the zone defining a turbulent flow zone for the mixture of shredded tobacco, paper and impurities, a separating device is installed which defines a first purification zone. The device has a grid, a vacuum system for maintaining turbulent flow of the mixture of shredded tobacco, paper and lightweight impurities, positioned above the grid having a mesh size larger than the size of heavy impurities, and a vacuum system for receiving heavy impurities. Then a second purification zone includes a vibrating sieve with a mesh size larger than the size of heavy and lightweight impurities.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: December 20, 2011
    Assignee: International Tobacco Machinery SP. Z.O.O.
    Inventor: Krzysztof A. Natora
  • Patent number: 8052075
    Abstract: A process of forming a semiconductive carbon nanotube structure includes imposing energy on a mixture that contains metallic carbon nanotubes and semiconductive carbon nanotubes under conditions to cause the metallic carbon nanotubes to be digested or to decompose so that they may be separated away from the semiconductive carbon nanotubes.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: November 8, 2011
    Assignee: Micron Technology, Inc.
    Inventors: Eugene P. Marsh, Gurtej S. Sandhu
  • Patent number: 7959096
    Abstract: As previously disclosed this invention will change a lot of ways the prescription bottle is used, such as Americans won't have to keep them for lack of time to destroy them. The shredder will prevent a lot of injuries from people trying to scrap information off the bottle with a sharp object. It would be made of parts right here in the United States and of communally used parts. The invention will be child proof but most of all the cost to build would be minimal so it would be very affordable for the majority of Americans.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: June 14, 2011
    Inventor: Tommy Edward Wells, Sr.
  • Publication number: 20100273001
    Abstract: Methods of recycling carpet components are disclosed. Usable compositions containing recycled carpet components, and carpets and carpet components containing recycled carpet components are also disclosed.
    Type: Application
    Filed: May 28, 2010
    Publication date: October 28, 2010
    Inventor: Joseph Z. Keating
  • Publication number: 20100272995
    Abstract: Methods of recycling carpet components are disclosed. Usable compositions containing recycled carpet components, and carpets and carpet components containing recycled carpet components are also disclosed.
    Type: Application
    Filed: April 22, 2009
    Publication date: October 28, 2010
    Inventor: Joseph Z. Keating
  • Patent number: 7651040
    Abstract: A method of formulating a wellbore fluid that includes grinding a solid particulate material and a polymeric dispersing agent to provide a resulting polymer coated solid material, and suspending the resulting polymer coated solid material in the wellbore fluid. At least a portion of the resulting polymer coated solid material has a particle diameter less than 2.0 microns, wherein the polymeric dispersing agent has a molecular weight greater than 10,000. Exemplary starting materials for the solid material include weighting agents including barite, calcium carbonate, dolomite, ilmenite, hematite or other iron ores, olivine, siderite and strontium sulfate as well as mixture and combinations of these and other similar weighting materials. The dispersant in one illustrative embodiment is a polymeric acrylate ester made from the monomers of stearyl methacrylate, butylacrylate, and acrylic acid.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: January 26, 2010
    Assignee: M-I L.L.C.
    Inventors: Andrew J. Bradbury, Jarrod Massam, Christopher A. Sawdon
  • Patent number: 7578457
    Abstract: Grinding media, including shaped media such as spheres or rods ranging in size from about 0.5 micron to 100 mm in diameter, are formed from a multi-carbide material consisting essentially of two or more carbide-forming elements and carbon, with or without carbide-forming elements in their free elemental state. The media have extremely high mass density, extreme hardness, and extreme mechanical toughness.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: August 25, 2009
    Assignee: Primet Precision Materials, Inc.
    Inventor: Robert Dobbs
  • Publication number: 20090032626
    Abstract: Systems and methods are provided for separating materials, such as fluff and plastic found in disposable diapers. A separator unit is provided having an inlet for receiving the materials, means for separating the materials, and multiple outlets for each of the respective materials. In one aspect, the system is substantially pneumatic, and air is used to separate the materials. In some aspects, a shredder is provided for shredding the materials prior to separating, and balers are provided for baling each of the respective materials.
    Type: Application
    Filed: February 8, 2008
    Publication date: February 5, 2009
    Inventors: Steven L. Armstrong, Larry Parmet, Kevin Murray, Jeffrey S. Gottwald
  • Patent number: 7312262
    Abstract: A composition for microsurfacing of pavement is described. The composition includes a polymer-modified emulsion asphalt oil, water, cement, and crushed aggregate. The crushed aggregate includes a first portion having an L.A. abrasion resistance which is higher than an L.A. abrasion resistance of a second portion of the crushed aggregate.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: December 25, 2007
    Assignee: Donelson Construction Co., LLC
    Inventors: Michael James Donelson, Terrence Christopher Donelson, David Carr Donelson
  • Patent number: 7267291
    Abstract: A wellbore fluid having an oleaginous phase and an additive for increasing the density of the wellbore fluid. The additive comprises solid colloidal particles coated with a dispersant during the comminution process of forming the particles. Exemplary starting materials for the colloidal particles include commonly known weighting agents as well as mixture and combinations thereof. The dispersant in one embodiment, is selected from carboxylic acids of molecular weight of at least 150 Daltons. Alternatively, the dispersant coating may be made of compounds including oleic acid, polybasic fatty acids, alkylbenzene sulfonic acids, alkane sulfonic acids, linear alpha-olefin sulfonic acid or the alkaline earth metal salts of any of the above acids, and phospholipids as well as mixtures and combinations of these compounds. In another embodiment the dispersant is a polyacrylate ester having an average molecular weight from about 10,000 Daltons to about 200,000 Daltons.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: September 11, 2007
    Assignee: M-I LLC
    Inventors: Andrew J. Bradbury, Jarrod Massam, Christopher A. Sawdon
  • Patent number: 7124970
    Abstract: The invention relates to a method and a an apparatus for processing various materials, the apparatus including at least two annular feed gaps placed one within the other. The beginning of each feed gap is provided with a grinding section (5), which is followed in the apparatus by a mixing section (10). The materials are processed in the grinding section (5), whereafter they are mixed in the mixing section (10), and the mixture is extruded into a product.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: October 24, 2006
    Assignee: Conenor OY
    Inventor: Kari Kirjavainen
  • Patent number: 7115671
    Abstract: The invention relates to a process for recovering monomeric units of a nylon from carpet material. The carpet material includes fibres containing nylon bound to a backing containing one or more non-nylon components. The carpet material contains between 15 and 35 wt. % of the nylon. The process includes: a) mechanically separating the carpet material into an enriched carpet mixture containing between 35 and 55 wt. % of said nylon and into a depleted carpet mixture having a lower content of nylon than the carpet material; and b) exposing the enriched carpet mixture to conditions at which depolymerization of the nylon is effected.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: October 3, 2006
    Assignee: DSM IP Assets B.V.
    Inventors: Antonius J. F. M. Courage, Marco J. A. Houben, Mathieu H. M. Mertens, Leonardus J. G. Raets
  • Patent number: 6903142
    Abstract: The present invention 10 discloses a trash and garbage processing device which may be sized to fit into a kitchen of a home or sized to be used in a multi-family dwelling. The present invention 10 has a plurality of sorting compartments 12 disposed on the top thereof for receiving various types of waste products. There is a compartment for shrinking and palletizing plastics, another compartment for shredding paper and cardboard 58, another compartment for perishable organic waste 48, a crushing compartment for crushing cans and glass/plastic products 54 and a disposal compartment 60 for non-degradable, solid waste such as bones and batteries. After the various types of waste materials are processed, they are transferred to a conduit to a recycling bin 32 for temporary storage and then thereafter removed from the recycling bin and transferred for final disposal.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: June 7, 2005
    Inventor: Chaim M Stauber
  • Patent number: 6713038
    Abstract: A titanium dioxide compound was isolated from a rare type of naturally occurring ore. Processes for efficiently isolating and obtaining these TiO2 compounds, as well as methods for using them have been developed. These TiO2 compounds may be used directly in applications such as paper, plastics and paints without being subjected to the chloride or sulfate processes. Also they made be used as a feedstock for the chloride or sulfate processes. In order to obtain these TiO2 compounds, one may grind or pulverize the naturally occurring ore, disperse it in a solution or suspension, and process it by selective flocculation or aqueous biphasic extraction.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: March 30, 2004
    Assignee: Millenium Inorganic Chemicals, Inc.
    Inventors: Ling Zhou, Thomas Messer, Fu-Chu Wen, Mark Banash
  • Patent number: 6691765
    Abstract: A system and method for producing foundry quality sand from non-conventional starting materials through the combination of oolitization and classification. Incoming particulate matter is first directed into a controlled energy attrition unit where the particles are made to collide with one another. Such collisions clean and round the particles by chipping away surface projections and coatings without crushing the particles. The particle stream is then directed through a multi-fraction classifier where it is separated into two or more useable grades of foundry sand. An air classifier is preferred for the classification stage.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: February 17, 2004
    Assignee: Noram Technology, Ltd.
    Inventors: Robert E. Sparks, Kenneth Hillel Peter Harris
  • Publication number: 20040009127
    Abstract: The invention relates to carrier particles for use in pharmaceutical compositions for the pulmonary administration of medicaments by means of dry powder inhalers. In particular, the invention relates to a novel technological process for obtaining a carrier modified so as to improve the efficiency of redispersion of active particles and hence increase the respirable fraction. After the treatment of the invention, the surface of said modified carrier particles can also be coated with a suitable additive so as to further improve the respirable fraction.
    Type: Application
    Filed: April 28, 2003
    Publication date: January 15, 2004
    Applicant: Chiesi Farmaceutici S.p.A.
    Inventors: Rossella Musa, Roberto Bilzi, Paolo Ventura, Paolo Chiesi
  • Patent number: 6578780
    Abstract: There is a method for the mechanical disintegration of biogenic sewage sludge, for which the sewage sludge, in an initial state, has microorganisms in the form of cells and a solid, which is formed essentially from aggregates of cells and suspended materials, and for which a disintegration process (3, 4) causes a destruction of aggregates and a destruction of cells. It is desirable to improve the disintegration. This is achieved in that, in a first disintegration step 3, primary destruction of aggregates and, in a subsequent, separate second disintegration step 4, primary destruction of cells is caused. Due to the use of two separate disintegration processes, an appreciable improvement in the disintegration is achieved, since fewer aggregates and more cells are supplied to the second disintegration process. The increased destruction of cells brings about the improvement in the disintegration.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: June 17, 2003
    Assignee: J.F. Knauer GmbH
    Inventors: Jochen Knauer, Jens Schmitt, Jörg Schmitt
  • Patent number: 6457404
    Abstract: An apparatus for processing polished cereal to obtain no-bran cereal having a reduced size. The apparatus comprises a polished cereal processing section for removing bran remaining on surfaces of polished cereal by mixing granular material with the polished cereal so that the remaining bran is captured by the granular material, and separating the polished cereal with bran removed and the granular material with bran captured; and a granular material reprocessing section for reprocessing the granular material with bran captured and feeding back the reprocessed granular material to the polished cereal processing section for recycling the granular material. The granular material reprocessing section includes a screen tube for separating the granular material within a predetermined granularity range and a removing roller arranged to rotate in the screen tube for removing the bran captured on surfaces of the granular material fed into the screen tube.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: October 1, 2002
    Assignee: Satake Corporation
    Inventors: Takeshi Munesada, Yukihiro Kawano, Hidefumi Fujikawa, Syuji Uda
  • Patent number: 6338446
    Abstract: A metallic coating layer is removed at least partly from scrap metal pieces having a core and the coating layer on the core. The coating layer has a lower melting temperature than the core. The scrap metal pieces are agitated in a container with abrading elements so as to cause multiple collisions, whereby the coating layer is at least partly removed. During the agitating the container temperature is a temperature T in the range Ts(coat)<T<TL(core) wherein Ts(coat) is the solidus temperature of the coating layer and TL(core) is the liquidus temperature of the core. The agitation may be by rotationally tumbling or shaking the scrap metal pieces and the abrading elements.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: January 15, 2002
    Assignee: Corus Aluminium Walzprodukte GmbH
    Inventor: Adrianus Jacobus Wittebrood
  • Patent number: 6295794
    Abstract: A composition of matter for joint or texture compound used in wallboard applications which incorporates an ingredient which has been reclaimed from waste wallboard panel. A method and system for reconstituting the waste wallboard into the joint compound is also provided. Waste wallboard is thereby recycled so that the waste wallboard does not need to be disposed in a landfill.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: October 2, 2001
    Assignee: Universal Forest Products, Inc.
    Inventors: Frank Juergen Nordt, Jason A. Everett, Duane L. Whipple, David E. Spring
  • Patent number: 6258150
    Abstract: An iron based product having at least a sufficient total ferrous content by weight to render the product commercially feasible wherein the product is derived by a process comprising the beneficiation of kish slag waste material having a relatively low ferrous material content before beneficiation. The resulting iron based product has a total ferrous content of substantially 90% by weight thereby making it both practical and economical for the reintroduction into iron and/or steel making processes utilizing an injection method or by briquetting at at least a portion of the resulting product. The beneficiation process involves the heating of the waste material to an extent at least sufficient for drying, separating the high sulphur slag from a remainder of the waste material and subsequently classifying the remainder of the waste material, once separated from the high sulphur slag by particle size.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: July 10, 2001
    Inventor: William James MacKellar
  • Patent number: 6140463
    Abstract: The invention comprises an improved recycling and recovery process for rugs, flooring, carpeting, carpeting materials, and other textiles particular from waste carpet containing at least some synthetic fiber backing materials, and at least some nylon as well, and more particularly for the separation and recovery of the nylon polymers in purified and reusable condition and also recovery of other polymeric fibers and materials which may be present and can be recycled and reused.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: October 31, 2000
    Inventor: Roland E. Stefandl
  • Patent number: 5918819
    Abstract: Devices and corresponding mechanical non-fermentive methods for isolating seeds from fruits or vegetables and for releasing and separating the isolated seeds from their coats, according to one embodiment the device includes a first station including a first chamber and a second chamber at least partly separated therebetween by a perforation element, the first chamber engages a mixing mechanism for circulating a coated seeds including liquid mixture such that the coated seeds are scraped against the perforation element and passing through the element into the second chamber, the device further includes a second station including a third chamber engaging a vortexing mechanism for vortexing the liquid mixture, such that the seeds resulting from the first station are scraped against one another, thereby releasing the seeds from their coats, the device further includes drains for separating the released seed coats from the naked seeds.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: July 6, 1999
    Assignee: Inter-Nevet Ltd.
    Inventors: Gregory Rabinovich, Alexander Tanklevsky, Mira Rabinovich
  • Patent number: 5855325
    Abstract: A method of separating glass from film in a recycling of laminated panes, includes the following consecutive steps: in a crusher, breaking the glass carried on the film; heating the broken panes in a heating bath; and removing the glass from the film in a separating device.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: January 5, 1999
    Assignee: TZN Forschungs-und
    Inventors: Jurgen Hofmann, Hans-Otto Demski
  • Patent number: 5699724
    Abstract: For cleaning foodstuffs in the form of a bulk material, such as cereal grains, rice grains, soybeans, sunflower seeds, coffee beans, and the like, there is provided an optical sorting device (24, 24a, 24a') subsequent to a precleaning system (6), which enables sorting on the basis of color and/or size and/or shape. Each particle of the bulk material is allocated to a particle class determined by parameters and conveyed on a supporting surface transporting the bulk material to a reception area (43, 44, 45) for the respective particle class. To clean the bulk material, impurities and bad particles are sorted out of the product, with the product being partitioned into classes, if required.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: December 23, 1997
    Assignee: Buhler AG
    Inventors: Arthur Wettstein, Gilbert Moret
  • Patent number: 5683040
    Abstract: The invention relates to a method for recycling electronic waste in the form of disassembled printed circuit boards from electronic devices, from which the components have not been removed, known as printed circuit boards. After removal of the batteries, mercury switches and PCB-containing capacitors, the printed circuit boards are mechanically precomminuted and the particles are cryogenically embrittled with liquid nitrogen and comminuted in a hammermill.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: November 4, 1997
    Assignee: Daimler-Benz AG
    Inventors: Ralf Jakob, Michele Melchiorre
  • Patent number: RE45290
    Abstract: Clean glass particles are produced from post-consumer mixed glass and like waste streams by a series of pulverizing, size- and material-based separation, ozonation, drying, sizing, and paper fluff removal steps.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: December 16, 2014
    Assignee: Glass Processing Solutions, LLC
    Inventor: Cynthia Andela