Vertical Current Patents (Class 209/138)
  • Patent number: 10894240
    Abstract: A method of treating a powder material includes classifying a powder material within a vessel by using a fluidized bed of the powder material to separate smaller particles of the powder material from larger particles of the powder material, and degassing the separated smaller particles and the larger particles within the vessel by heating and fluidizing the larger particles and the separated smaller particles.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: January 19, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Ying She, Zissis A. Dardas
  • Patent number: 10857562
    Abstract: Example embodiments include a system for removing string from shredded tobacco, including an arrangement configured to dispense shredded tobacco from a first location to a second location along a path of communication, a string filter operative at a location along the path of communication comprising a first roller comprising pins, whereby string may be contacted by at least some of the pins and retained at the string filter as the shredded tobacco passes through the filter.
    Type: Grant
    Filed: August 19, 2017
    Date of Patent: December 8, 2020
    Assignee: Altria Client Services LLC
    Inventors: Carl Patrick Kite, Linwood Carneal, Joshua Brock Craft, Richard Kevin Barnhouse
  • Patent number: 10702890
    Abstract: A device for separation and removal of light impurities of a granular material has a body (1) in the upper part of which is located a fan (2) that sucks air, driven by a motor (3), and in the central part is axially fixed a hopper (6) connected to an inlet (7) of the granular material wherein in the lower part of the device is located a module (13) in the shape of a centripetal guide (14) consisting of a cylindrical housing (15) on the internal wall of which are evenly arranged, at a distance from each other, in different transverse planes, directing plates (16) turned with their ends towards the device axis such that the plates (16) in one plane are shifted in relation to the plates (16) in an adjacent plane.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: July 7, 2020
    Inventor: Wlodzimierz Sosnowski
  • Patent number: 10646902
    Abstract: A half round dedusting apparatus for removes dust and debris from particulate material passing through the dedusting apparatus. The configuration of the dedusting apparatus includes a half round cylindrical housing in which is mounted a partial cone wash deck having a reverse partial cone deflector that is vertically moveable to vary the flow rate of particulate material passing over the wash deck. The product inlet port is preferably circular and directs contaminant-laden particulate material inside the deflector to pass over the surface of the wash deck. The housing has a greater diameter than the maximum diameter of the wash deck to establish a Venturi zone around the circumference of the wash deck. The wash deck and deflector are detachably mounted within the housing to allow removal thereof for ease of cleaning the wash deck and also the interior of the housing.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: May 12, 2020
    Assignee: Pelletron Coeporation
    Inventors: Joseph T. Lutz, Heinz Schneider, Amit K. Gautam
  • Patent number: 10569198
    Abstract: A fluid separator includes a body, an inlet, a first outlet and/or a second outlet. The first outlet may include a vortex finder that may have a convergent-divergent configuration. The second outlet may include or may be connected to a pressure relief valve. At least a portion of the pressure relief valve may be disposed in the vortex finder. The pressure relief valve may be disposed entirely outside of the vortex finder. The vortex finder may include a divergent section and a convergent section. In embodiments, the divergent section may be at least twice as long as the convergent section, a taper angle of the convergent section may be at least twice as large as a taper angle of the divergent section, and/or an axial length of a portion of the vortex finder extending into the body may be at least 1.5 times a diameter of the inlet.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: February 25, 2020
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Aniruddha M. Kulkarni, Jubin T. George, Stephen Showalter
  • Patent number: 10434519
    Abstract: Systems and methods for separating metallically augmented non-magnetic objects are provided herein. Systems may include a conveyor for translating refuse along a path, the refuse comprising non-magnetic objects and metallically augmented non-magnetic objects, and a magnetic force generator extending along at least a portion of the conveyor and generating a magnetic force that causes the metallically augmented non-magnetic objects to remain in contact with the conveyor as the metallically augmented non-magnetic objects traverse along the path and as the non-magnetic objects are removed from conveyor.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: October 8, 2019
    Inventors: Aamon Ross, Michael Wells, Dominic Halsmer, Halsmer Christina, Chris Barker, Aron Romasania
  • Patent number: 10421079
    Abstract: Ore rock is disintegrated into extremely fine rock fraction in a slurry by subjecting the slurry in selective orders of application of excitation forces and energy to cause spontaneous cavitation to occur in the slurry. The excitation forces and energy are provided by electrodynamic discharges, hydrostatic force, hydrodynamic energy, and sonic vibrations.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: September 24, 2019
    Inventors: Victor Zaguliaev, Nikolai Novikov
  • Patent number: 10343104
    Abstract: Systems and a method for removing carbon nanotubes from a continuous reactor effluent are provided herein. The method includes flowing the continuous reactor effluent through a separation vessel, separating carbon nanotubes from the continuous reactor effluent in the separation vessel, and generating a stream including gaseous components from the continuous reactor effluent.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: July 9, 2019
    Assignees: EXXONMOBIL UPSTREAM RESEARCH COMPANY, SOLID CARBON PRODUCTS, LLC
    Inventors: Robert D. Denton, Dallas B. Noyes, Russell J. Koveal, Jr., Terry A. Ring
  • Patent number: 9750269
    Abstract: A popcorn popping unit has a heating element and a blower fan, and a cooking surface adapted to receive kernels of corn. The popping unit is configurable for two flow paths of pressurized air through the popping unit. In the first path, pressurized air is configured to flow over the heating element, flow over the cooking surface, cook the kernels of corn, and move the cooked kernels of corn to a serving dispenser. In a second path, pressurized air is configured to flow over the cooking surface, and move un-popped seeds into a seed collection bin.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: September 5, 2017
    Assignee: GREENFIELD WORLD TRADE, INC.
    Inventors: Michael R. Mastroianni, Rong Liu, Bikram Sohi, William A. Bucklew
  • Patent number: 9616431
    Abstract: An apparatus and method for separating a natural gas production stream from hydrocarbon well operations into a gas component and a sand and liquid component is described. More specifically, a sand separator comprising a cylindrical body, a production stream inlet port, a gas outlet port and a solid and liquid drain port is described. The cylindrical body has an inner cavity with an inner cone having one-way gas vents and a stationary auger wrapped around the inner cone. The production stream inlet port includes a pipe having a curved tip that directs the production stream into the body and around the inner cone and stationary auger, causing the production stream to slow down and the components to separate.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: April 11, 2017
    Assignee: SABLE SAND SOLUTIONS INC.
    Inventors: Bruce Lyon, Gordon McIntosh
  • Patent number: 9580246
    Abstract: A method for processing material that contains biomass. The material is led onto a conveyor. The conveyor conveys the material to an apparatus for mechanical processing and/or to a further processing plant. The moisture content is measured and/or the size of pieces of non-combustible material and/or the content of non-combustible material in the material flow is measured in connection with the conveyor. Based on at least one of the measurements, material is conveyed to the material to be conveyed for further processing and/or to the apparatus for mechanical processing, or to at least one material to be conveyed elsewhere than to the further processing plant or the apparatus for mechanical processing. Also a system for processing material that contains biomass.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: February 28, 2017
    Assignee: UPM-KYMMENE CORPORATION
    Inventors: Perttu Laakkonen, Juha Palokangas
  • Patent number: 9468947
    Abstract: The empty seed shell removing apparatus has a main body including an interior, an interior floor portion, a top portion including air intake openings, a front portion having a front opening, and a front portion having an air exhaust opening. A fan assembly attached within the interior of the main body and including a fan member adapted to create an air stream from the air intake openings, around and through the interior, and out through the air exhaust opening; and a shell container sized and shaped to removably slide and fit within the front opening.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: October 18, 2016
    Inventor: Joseph Issa
  • Patent number: 9156036
    Abstract: There is provided a workpiece separation apparatus permitting input of a mixture of workpieces and chips stably within a flow current and separating them accurately and efficiently. The workpiece separation apparatus includes an input cylinder inserted within a separating container, and a fluid supplying means arranged so as to supply fluid to the separating container from a part lower than a lower end of the input cylinder, and configured such that the fluid overflows and flows out of the upper end of the separating container due to a flow current generated within the separating container, and such that the level of the fluid rises up in the input cylinder and the fluid does not flow out of the upper end of the input cylinder, but is maintained substantially in a resting state and at a level above the level of the upper end of the separating container.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: October 13, 2015
    Assignees: Citizen Holdings Co. Ltd., Citizen Machinery Co., Ltd.
    Inventors: Shozen Yanakawa, Hiroshi Kasuya, Kyota Kotake, Satoru Akimoto, Takahiro Mogi, Youji Takeuchi, Umeo Tsuyusaki
  • Patent number: 8926847
    Abstract: A method for using an extractor system to extract particulate material from a liquid tank includes inserting a first conduit into a liquid tank; inserting an outflow line into the liquid tank, the outflow line comprising one or more nozzles having a distal end; inserting an inflow line into the liquid tank, the inflow line comprising a collector having a distal end, the collector and the one or more nozzles being proximate each other; and operating the pump to pump liquid from an extractor tank through an outflow line out of the one or more nozzles to unsettle the particulate material, the particulate material drawn through the collector and the inflow line into the extractor tank without passing through the pump.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: January 6, 2015
    Inventor: George Schade
  • Patent number: 8857622
    Abstract: A cylindrical dedusting apparatus has an upper material infeed opening to introduce material into a frusto-conical infeed hopper centered over the tip of a conical wash deck supported over an air infeed conduit. Air is blown through slots and openings in the surface of the wash deck to separate dust and debris from the particulate material. The dust-laden air is discharged by passing between the infeed hopper and a cylindrical sleeve to enter into a circular collector for discharge from the apparatus. Flow rate of material over the wash deck is adjusted by vertically moving the infeed hopper within the sleeve relative to the wash deck, the tip serving as a stopper to define the dimension of the gap through which material flows onto the wash deck. Cleaned material passes through a lower discharge opening while dirty air is removed through a radially oriented discharge conduit from the circular collector.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: October 14, 2014
    Assignee: Pelletron Corporation
    Inventors: Heinz Schneider, Paul Wagner
  • Patent number: 8820535
    Abstract: Multiple embodiments of a variable flow classifier for vertical air-swept coal pulverizers are disclosed. In all embodiments, a classifier structure includes a cone with means for providing a pattern of inlet ports for introducing airborne coal to the cone wherein said means allows for selective variation in the size of the ports.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: September 2, 2014
    Inventor: Rickey E. Wark
  • Patent number: 8800777
    Abstract: A cylindrical dedusting apparatus has an upper material infeed opening to introduce material into a frusto-conical infeed hopper centered over the tip of a conical wash deck supported over an air infeed conduit. Air is blown through slots and openings in the surface of the wash deck to separate dust and debris from the particulate material. The dust-laden air is discharged by passing between the infeed hopper and a cylindrical sleeve to enter into a circular collector for discharge from the apparatus. Flow rate of material over the wash deck is adjusted by vertically moving the infeed hopper within the sleeve relative to the wash deck to vary the dimension of the gap through which material flows onto the wash deck. A closed loop air system can be used with the cylindrical dedusting apparatus with a bleed air module that reduces air flow into the apparatus.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: August 12, 2014
    Assignee: Pelletron Corporation
    Inventors: Heinz Schneider, Paul Wagner
  • Patent number: 8770411
    Abstract: A method for the separation of fine particles from granulate-like bulk material conveyed in a pipeline as a product flow by means of a compressed air or vacuum conveyance, characterized in that the product flow is radially dispersed at the intake end of a pipe screen integrated in the pipeline in an airtight manner, and aerated there by a cleansing airflow, flowing at an angle to the direction of the dispersed product flow, in the region of a cleansing plane, which deflects the lighter particles, fibers, clusters, dust or similar items carried in the product flow from the trajectory of the heavier granulate, and conveys said into an annular sheath through which the cleansing air flows, from which they are removed by means of a separator.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: July 8, 2014
    Assignee: Zeppelin Systems GmbH
    Inventors: Guido Winkhardt, Michael Heep
  • Publication number: 20140174993
    Abstract: A dedusting apparatus is formed with a rectangular inlet structure that assures a fully loaded feeding of particulate material over the face of the opposing wash decks. A rectangular inlet box having substantially the same width dimension as the corresponding dimension of the adjacent wash decks provides an even distribution of particulate material over the entire surface of the wash decks. A reconfiguration of the air inlet structure eliminates a rearward air plenum and manifold by passing the air flow upwardly through the bottom wall of the apparatus housing, rather than through the rear wall. Individually adjustable inlet deflectors can regulate the product flow on each respective wash deck and can be closed to stop the product flow completely to either one or both of the wash decks. Actuators control the movement of the deflectors, which can be integrated in an overall electronic control system for the dedusting apparatus.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 26, 2014
    Applicant: PELLETRON CORPORATION
    Inventor: Heinz Schneider
  • Patent number: 8668091
    Abstract: An air classifier contains a cylindrical casing provided with at an upper part thereof a feed port to feed high pressure air and a powder material, an umbrella-shaped center core in the casing, and an umbrella-shaped separator core arranged downstream of the center core in the casing and including an opening at center thereof. The air classifier has a configuration containing a dispersion chamber to disperse the powder material, being surrounded by an inner wall of the upper part casing and the center core, and a classification chamber to classify the powder material into fine and coarse powders by centrifugation, being surrounded by the center core, separator core and inner wall of the casing. In the dispersion chamber provided are a louver ring containing guide slats circularly arranged at regular intervals, and a space encircling the louver ring and serving as flow passage of the air and powder material.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: March 11, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Nobuyasu Makino, Eiichi Masushio, Fumitoshi Murakami
  • Patent number: 8668090
    Abstract: The powder classifying device classifies powder having a particle size distribution and collects the classified powder. The device includes a disc-like cavity to which the powder is supplied and where the supplied powder is classified, a powder supply port for supplying the powder to the cavity, guide vanes arranged so as to extend from an outer periphery of the cavity in an inner direction at a predetermined angle, a discharge unit for air streams including fine particles discharged from the cavity, a collection unit for coarse particles discharged from the cavity and air nozzles arranged below the guide vanes on an outer peripheral wall of the cavity along a tangential direction of the outer peripheral wall and blow compressed air into an inside of the cavity.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: March 11, 2014
    Assignee: Nisshin Seifun Group Inc.
    Inventors: Kenji Taketomi, Kazumi Kozawa, Masaru Kyugo
  • Patent number: 8312994
    Abstract: A cylindrical dedusting apparatus has an upper material infeed opening to introduce material into a frusto-conical infeed hopper centered over the tip of a conical wash deck supported over an air infeed conduit. Air is blown through slots and openings in the surface of the wash deck to separate dust and debris from the particulate material. The dust-laden air is discharged by passing between the infeed hopper and a cylindrical sleeve to enter into a circular collector for discharge from the apparatus. Flow rate of material over the wash deck is adjusted by vertically moving the infeed hopper within the sleeve relative to the wash deck, the tip serving as a stopper to define the dimension of the gap through which material flows onto the wash deck. Cleaned material passes through a lower discharge opening while dirty air is removed through a radially oriented discharge conduit from the circular collector.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: November 20, 2012
    Assignee: Pelletron Corporation
    Inventors: Heinz Schneider, Paul Wagner
  • Patent number: 8286798
    Abstract: The cob cleaning conveyor system provides a capability for positively removing or cleaning lighter crop residue from a flow of cobs. The system can be incorporated with a cob collection device, such as on a trailer, and can be adjustable in several ways for accommodating varying corn varieties, conditions and the like. The system includes a first conveyor which propels the flow into a gap or passage toward a second conveyor, while a flow of air is directed downwardly through the passage to remove or clean the lighter residue material from the cobs. The angle of attack of the air flow can be selectable, and optionally be directed downwardly along the second conveyor to the passage, and upwardly along the second conveyor to travel with or follow the residue flow, to suit present conditions.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: October 16, 2012
    Assignee: CNH America LLC
    Inventors: Jonathan E. Ricketts, John J. Borsdorf, Kenneth W. Brown, Joshua D. Werning, Tyler Nelson
  • Patent number: 8245963
    Abstract: A grain size and/or pulverulent-matter drying apparatus for the treatment of suspended mineral particles, at least 90% in weight of which have a size less than 60 mm, primarily includes a substantially vertical gas pipe with an ascending flow provided with a gas inlet, a lower opening and an upper opening between which a supply opening is also provided for insertion of matter. A portion of the matter, or so-called “fines”, can escape with the gas through the upper opening due to the bearing capacity of the ascending flow, while another coarser portion of the matter is not carried away by the gas and falls into the lower opening. The apparatus also has a device for creating turbulence, which favors the separation of the different grain sizes and the suspension of matter, provided at the internal wall of the pipe and located between the lower opening and the supply opening.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: August 21, 2012
    Assignee: FIVES FCB Societe Anonyme
    Inventors: Sébastien Devroe, Alain Cordonnier, Pascal Marechal
  • Patent number: 8231007
    Abstract: A static classifier cage is formed in upper and lower tiers of circumferentially spaced bar-shaped vanes of wear-resistant material. The lower tier is formed by and between a bottom ring and an intermediate ring. The top tier is formed by and between the intermediate ring and a topmost ring. In each tier, the lowermost ring is provided with slots to receive and act as a seat for the vertically oriented vanes while the upper ring in the tier is provided with radially outwardly opening notches into which the vanes are moved in a radial fashion. After the vanes are installed, a retainer is fastened into position to prevent the vanes from backing out of the notches.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: July 31, 2012
    Inventor: Rickey E. Wark
  • Patent number: 8225936
    Abstract: A method for dividing a stream of solids includes discharging the stream of solids via a first downer. The stream of solids are fluidized at a bottom of the first downer by supplying a first conveying gas. By the first conveying gas, a part of the stream of solids are conveyed to a top of a first riser branching off from the first downer. A remaining part of the stream of solids are discharged via a second downer adjoining the first downer. The remaining stream of solids are fluidized at a bottom of the second downer by supplying a second conveying gas. By the second conveying gas, a part of the remaining part of the stream of solids are conveyed to a top of a second riser branching off from the second downer.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: July 24, 2012
    Assignee: Outotec Oyj
    Inventors: Roger Bligh, Pekka Hiltunen, Cornelis Klett, Michael Missalla, Bernd Reeb, Lilli Sacharow, Michael Stroeder, Peter Sturm
  • Publication number: 20120160745
    Abstract: A feeding device for an injection molding device includes a hopper, a shaft, a number of blade groups, and a driving device. The hopper defines a central axis and a hole along the central axis, the hole includes an inlet and an outlet opposing the inlet. The shaft is received in the hole along the central axis. The blade groups are arranged along direction of the central axis. Each blade groups includes a number of blades which are substantially located at the same radical cross-section of the shaft. Each blade is connected to the shaft and is tilted to the radical cross-section of the shaft. The driving device is connected to the shaft to rotate the shaft and the blade groups to generate airflow towards the inlet.
    Type: Application
    Filed: April 25, 2011
    Publication date: June 28, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: YUAN-LUNG KUO, WEI-LUN HAN
  • Patent number: 8172087
    Abstract: Disclosed is a separation apparatus comprising a conveyor; and a material separator positioned above a conveyor, the conveyor being arranged to convey a mixture of materials to the material separator; the material separator comprising a suction duct comprising a sidewall which defines a passageway linking an inlet positioned adjacent the conveyor to an outlet positioned away from the conveyor; and an airflow generator arranged to blow air through a slit in the sidewall into the passageway at a position between the inlet and the outlet; wherein, in use, the airflow generator blows air through the slit in a direction which is towards the outlet for creating a pressure difference between the inlet and the outlet thereby generating an airflow which causes relatively low density materials to be lifted from the conveyor and sucked into the passageway.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: May 8, 2012
    Assignee: Tek-Dry Systems Limited
    Inventor: Thomas Fryars
  • Patent number: 8172088
    Abstract: Apparatus and method for separating lightweight waste from product with cyclic pulses of air. An air separator includes a blower duct directing air upward through product conveyed on a foraminous conveyor. A pair of counter-rotating vanes in the blower duct cyclically open and close to establish a pulsating air flow in the center of the duct across the width of the conveyor. The pulsating air flow lifts lightweight waste from the product and blows it through a vertical duct above the conveyor to waste separation chambers for separation and disposal.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: May 8, 2012
    Assignee: Laitram, L.L.C.
    Inventors: Lars Vedsted, Søren Vedsted
  • Patent number: 8100269
    Abstract: The powder classifying device classifies powder having a particle size distribution and collects the classified powder. The device includes a disc-like cavity to which the powder is supplied and where the supplied powder is classified, a powder supply port for supplying the powder to the cavity, guide vanes arranged so as to extend from an outer periphery of the cavity in an inner direction at a predetermined angle, a discharge unit for air streams including fine particles discharged from the cavity, a collection unit for coarse particles discharged from the cavity and air nozzles arranged below the guide vanes on an outer peripheral wall of the cavity along a tangential direction of the outer peripheral wall and blow compressed air into an inside of the cavity.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: January 24, 2012
    Assignee: Nisshin Seifun Group, Inc.
    Inventors: Kenji Taketomi, Kazumi Kozawa, Masaru Kyugo
  • Patent number: 8051986
    Abstract: A process for the production of a range of improved biomass material products suitable for use as a fuel and which have been derived from municipal solid waste (MSW). The process comprises the steps of delivering a stream of mixed, MSW derived biomass material into a separator which operates under negative pressure enabling the biomass material to fall down the separator while inducing a sole air stream through the falling material to create a vortex of spinning material within the turbo chamber to separate out by centrifugal action selected denser components of the biomass material enabling such to continue falling to an outlet for collection while redirecting by entrainment in the air stream the remaining biomass material to a second outlet for subsequent processing or for collection.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: November 8, 2011
    Assignee: Orchid LP Limited
    Inventor: Tony Lees
  • Patent number: 8016116
    Abstract: An open configuration is provided for the housing of a particulate material dedusting apparatus through which particulate material passes to be cleaned by air passing through wash decks to separate dirt and debris from the particulate material for discharge from the housing. The front wall and side access doors of the housing are configured to be openable for full access to the front and rear chambers. The primary wash deck is detachably mounted within the housing for removal for cleaning purposes. The generally horizontal floors of the housing are formed with a slope to allow water to drain from the housing. The open configuration of the deduster housing facilitates cleaning, draining and drying of the housing to expedite changeover from one material to another. Furthermore, the open configuration allows access for improved welding to eliminate cracks and openings in joints which accumulate dirt and debris during operation.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: September 13, 2011
    Assignee: Pelletron Corporation
    Inventor: Heinz Schneider
  • Patent number: 8016115
    Abstract: Disclosed is a waste separation apparatus comprising a vortex initiator (10) and a vortex generator (20). The vortex generator (20) is arranged to direct the airflow from the vortex initiator (10) towards the waste to be separated. The airflow is used to separate less dense waste from more dense waste.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: September 13, 2011
    Assignee: Tek-Dry Systems Limited
    Inventor: Thomas Fryars
  • Publication number: 20110215031
    Abstract: Apparatus and method for separating lightweight waste from product with cyclic pulses of air. An air separator includes a blower duct directing air upward through product conveyed on a foraminous conveyor. A pair of counter-rotating vanes in the blower duct cyclically open and close to establish a pulsating air flow in the center of the duct across the width of the conveyor. The pulsating air flow lifts lightweight waste from the product and blows it through a vertical duct above the conveyor to waste separation chambers for separation and disposal.
    Type: Application
    Filed: March 8, 2010
    Publication date: September 8, 2011
    Inventors: Lars Vedsted, Søren Vedsted
  • Publication number: 20110132813
    Abstract: The invention relates to a method for classifying a ground material-fluid mixture and a mill classifier, in particular for carrying out the method according to the invention. In order to improve the grinding and classification process, the subsequent dust separation and in particular to optimise the energy situation of a grinding plant, it is provided according to the invention that the fine material-fluid flow leaving the dynamic classifier part with angular momentum, besides a swirl reduction or swirl elimination, with the aid of a guiding apparatus and a displacement body, is made uniform in a classifier outlet housing and deflected into a virtually linear flow. The fixed guiding apparatus arranged coaxially with the classifier axis in the classifier outlet housing and the displacement body can be formed as one unit and the guide elements of the guiding apparatus can be arranged on the displacement body and extending into the vicinity of the inner wall of the classifier outlet housing.
    Type: Application
    Filed: July 10, 2009
    Publication date: June 9, 2011
    Applicant: LOESCHE GMBH
    Inventors: Andre Baetz, Michael Keyssner
  • Publication number: 20100163464
    Abstract: Disclosed is a separation apparatus comprising a conveyor; and a material separator positioned above a conveyor, the conveyor being arranged to convey a mixture of materials to the material separator; the material separator comprising a suction duct comprising a sidewall which defines a passageway linking an inlet positioned adjacent the conveyor to an outlet positioned away from the conveyor; and an airflow generator arranged to blow air through a slit in the sidewall into the passageway at a position between the inlet and the outlet; wherein, in use, the airflow generator blows air through the slit in a direction which is towards the outlet for creating a pressure difference between the inlet and the outlet thereby generating an airflow which causes relatively low density materials to be lifted from the conveyor and sucked into the passageway.
    Type: Application
    Filed: December 23, 2009
    Publication date: July 1, 2010
    Inventor: Thomas Fryars
  • Publication number: 20100133206
    Abstract: An extraction system for removing a particulate material (e.g., abrasive material, such as garnet) from a water jet tank includes a tank with a door movably coupled to the bottom end to seal the bottom end of the tank. The system also includes a pump operably coupled to the tank via one or more valves. An outflow line with an outflow opening coupled to the pump that can be placed in fluid communication with the water jet tank. The system also includes an inflow line with an inflow opening coupled to the tank. At least a portion of the inflow line is adjacent the outflow line so that the inflow opening and outflow opening are proximate each other.
    Type: Application
    Filed: November 20, 2009
    Publication date: June 3, 2010
    Inventor: George Schade
  • Patent number: 7188730
    Abstract: A screening system designed to provide separation of multiple fractions of New Screens Fines. News Screens Fines (“NSF”) contain a mix of compressed, unmarketable recyclables that are generally less than four inches in size created as a by-product of current Material Recovery Facility (MRF) plant designs used to process single-stream recyclables. The NSF separation system uses a series of primary and secondary classification apparatus to separate materials into marketable products that meet legislative requirements. A series of screens, conveyors and air moving systems are designed to separate waste from fractions of glass, plastic and ferrous metals that can be sold.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: March 13, 2007
    Inventors: Michael C. Centers, Stephen A. Young
  • Patent number: 7156235
    Abstract: A classifier for separating coarse particles from a stream of gas and particles discharged from a vertical mill.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: January 2, 2007
    Assignee: Foster Wheeler Energy Corporation
    Inventor: Frantisek Eisinger
  • Patent number: 7119298
    Abstract: An electrostatic separation apparatus for conductive particles and insulating particles with reduced separation time and improved separating capability, comprises a substantially flat-plate shaped bottom electrode (26) provided on lower side, a substantially flat-plate shaped mesh electrode (22) provided above the bottom electrode (26) as spaced a predetermined distance apart from the bottom electrode (26) and having a number of openings (24) to allow particles to pass therethrough, a direct current power supply connected to at least one of the mesh electrode (22) and the bottom electrode (24), and a voltage is applied across the bottom electrode (22) and the mesh electrode (24), thereby forming a separation zone (10) between the electrodes.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: October 10, 2006
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Eiji Yoshiyama, Yasunori Shibata, Tetsuhiro Kinoshita
  • Patent number: 7104403
    Abstract: A two-stage static air classifier has a feed duct through which particles of a granular mixture fall. A classifying louver plate having fins forming upwardly inclined classifying channels is fitted into a side opening in the feed duct. Particles of a set size are drawn by air suction through the classifying channels in the first stage. A separator box having an inlet connected to the outlet of the classifying channels collects the separated particles in a second stage as the entrained particles fall by gravity to the bottom of the separator box while the air streams drawing the particles through the classifying channels pass out the top end of the box. Adjustable baffle plates transversely extending through the box permit control of the quantity of fines collected with the particles at the separator box bottom. Size of the collected particles is determined by the speed of a fan at the top outlet of the separator box.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: September 12, 2006
    Assignee: The Unimin Corporation
    Inventors: David L. Stephens, Gerald G. Verret, Richard U. Lalancette
  • Patent number: 6953517
    Abstract: In order to make it possible for an inhomogeneous residue generated in a pyrolysis plant to be separated continuously and in as fully graded a way as possible, specially selected components are combined with one anther in an advantageous configuration. An essential element of the plant is the separation of a coarse residue in a coarse screen and the subsequent separation of the remaining residue in a zigzag separator into a light residue and a heavy residue. By use of the plant, in particular, the carbon-containing constituents are separated from the remaining residue. The individual components are mostly configured to be self-cleaning for fault-free operation.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: October 11, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventors: Joachim Boretzky, Anton Ebert, Leonhard Teschers, Winfried Von Rhein, Helmut Werdinig
  • Patent number: 6942103
    Abstract: A two-stage static air classifier has a feed duct through which particles of a granular mixture fall. A classifying louver plate having fins forming upwardly inclined classifying channels is fitted into a side opening in the feed duct. Particles of a set size are drawn by air suction through the classifying channels in the first stage. A separator box having an inlet connected to the outlet of the classifying channels collects the separated particles in a second stage as the entrained particles fall by gravity to the bottom of the separator box while the air streams drawing the particles through the classifying channels pass out the top end of the box. Adjustable baffle plates transversely extending through the box permit control of the quantity of fines collected with the particles at the separator box bottom. Size of the collected particles is determined by the speed of a fan at the top outlet of the separator box.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: September 13, 2005
    Assignee: The Unimin Corporation
    Inventors: David L. Stephens, Gerald G. Verret, Richard U. Lalancette
  • Patent number: 6913689
    Abstract: Methods and apparatus for removing sediment from a liquid are provided. Pulses of pressurized air are directed into a conduit having an inlet disposed within a first liquid-containing vessel adjacent to (or within) the sediment to cause a slurry of liquid and sediment to flow through the conduit into a second vessel elevated above the first vessel. The slurry of liquid and sediment is allowed to drain from the second vessel into a third vessel that is positioned at an elevation lower than the second vessel. Liquid is drained from the third vessel (to another vessel or elsewhere) as sediment accumulates within the third vessel. The third vessel may be removed when accumulation of sediment therewithin reaches a predetermined amount. The accumulated sediment within the third vessel is removed and the third vessel is returned to service, or another empty vessel may be substituted therefor.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: July 5, 2005
    Inventor: Ervin F. Portman
  • Patent number: 6902067
    Abstract: An in-shell nut sorting and debris removal assembly for removing debris including empty shells and sorting out unacceptable in-shell nuts includes multiple spaced belt sorting assemblies to removed materials having desired size characteristics and send them into a collision chamber where the materials are subjected to air current to promote collisions between the materials. An inclined or angled separator screen mesh permits the upward air flow and sorts the materials by density as the collisions occur within the collision chamber. Upper and lower openings are used to remove the density sorted materials from the collision chamber. The lower opening is further divided to sort excessively dense materials such as rock from materials having the desired density characteristics.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: June 7, 2005
    Inventor: Henry H. Barnes, Jr.
  • Patent number: 6883668
    Abstract: The invention is an automatic debris separation process for effecting air separation of fragmented materials, such as size-reduced fiber feedstocks derived from textile wastes. The process uses high-velocity air within an elutriation assembly to efficiently remove ferrous and non-ferrous metal debris from recyclable polymer fibers. In particular, the process may employ automatic process control strategies to vary airflow within the elutriation assembly in process-controlled response to measured metal contamination, thereby ensuring that post-separation metal contamination is maintained at or below an upper contamination limit.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: April 26, 2005
    Assignee: Wellman, Inc.
    Inventors: James A. Lindsey, Daniel A. Allen, Jr., Jonathan W. Skelley
  • Patent number: 6883667
    Abstract: The invention is an automatic debris separation system for effecting air separation of fragmented materials, such as size-reduced fiber feedstocks derived from textile wastes. The system uses high-velocity air within an elutriation assembly to efficiently remove ferrous and non-ferrous metal debris from recyclable polymer fibers. In particular, the system may employ automatic process control strategies to vary airflow within the elutriation assembly in process-controlled response to measured metal contamination, thereby ensuring that post-separation metal contamination is maintained at or below an upper contamination limit.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: April 26, 2005
    Assignee: Wellman, Inc.
    Inventors: James A. Lindsey, Daniel A. Allen, Jr., Jonathan W. Skelley
  • Patent number: 6726020
    Abstract: Methods and apparatus are provided, which separate out at least a portion of fine dust, including fluoride, from recycled alumina. The difference in natural drop velocity and flow properties of fine and coarse particles is used to effect the separation.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: April 27, 2004
    Assignee: ABB Fläkt AB
    Inventors: Odd E. Bjarnø, Ole K. Bøckman
  • Patent number: 6712216
    Abstract: In a method of separating unwanted fine matter from heavier granular matter a flow of the material is produced under vacuum firstly through alternating expansion and contraction passages and then against impact surfaces to cause multiple redirections of the material and separation of the heavier granular material from the material flow.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: March 30, 2004
    Inventor: Frank Van Oirschot
  • Publication number: 20030192816
    Abstract: A cleaning system is disclosed for cleaning contaminants from animal litter. In a first embodiment of the invention, a vacuum and a blower are coupled together and configured so that the blower blows a first fluid stream into animal litter simultaneous with the vacuum drawing a second fluid stream from the animal litter. Relatively light contaminants are drawn into the vacuum while the relatively heavy animal litter is left behind. In a second embodiment of the invention, a cyclonic separator is used to draw the animal litter and the intermixed contaminants into the cyclonic separator simultaneously, and separate the animal litter from the contaminants. The animal litter is returned to the area from which it was removed. In a third embodiment of the invention, mechanical agitation is coupled with air separation to further enhance separation of contaminants from the animal litter.
    Type: Application
    Filed: April 9, 2003
    Publication date: October 16, 2003
    Inventor: William Opfel