Fluid Patents (Class 209/250)
  • Patent number: 11806756
    Abstract: An apparatus may include: a shaker body; a shaker screen disposed within the shaker body; and one or more air nozzles disposed within the shaker body, wherein the one or more air nozzles is positioned below the shaker screen, and wherein the one or more air nozzles is operable to deliver a pressurized stream of air to at least a portion of a bottom of the shaker screen.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: November 7, 2023
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Brice Aaron Jackson, Andrew D. Vos, Daniel Reynold Robichaud
  • Patent number: 11767975
    Abstract: A method of disposing of a mixture of oxidizable catalyst material and inert support media. The method comprises introducing inert gas into an enclosure; introducing the mixture into the enclosure; separating the oxidizable catalyst material and the inert support media within the enclosure; maintaining an inert gas environment around the oxidizable catalyst material during separating; exporting the separated inert support media from the enclosure; and grinding the separated oxidizable catalyst material into a powder for disposal as hazardous waste via incineration.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: September 26, 2023
    Assignee: The Maitland Company, LLC
    Inventor: Carlos Valdez
  • Patent number: 11685615
    Abstract: The invention relates to a device for grouping into batches at least semi-buoyant objects belonging to the group of fruit and vegetables, comprising a plurality of accumulation channels (11), a hydraulic supply device for each accumulation channel (11), a device for supplying objects to an upstream portion of each accumulation channel, a collecting channel downstream of each accumulation channel (11), a device (14) for holding/releasing the objects in each accumulation channel Each accumulation channel (11) comprises at least one bypass passage (30) for the hydraulic stream extending from at least one inlet of the bypass passage (30) located upstream of the holding/releasing device (14) to at least one outlet of the bypass passage (30) issuing downstream of the holding/releasing device (14). A bypass valve (32) allows adjustment of said part of the diverted flow.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: June 27, 2023
    Assignee: MAF AGROBOTIC
    Inventor: Philippe Blanc
  • Patent number: 11253752
    Abstract: A tennis-ball collector which includes a chassis, a drive train, an energy source, wheels, and a motor. The tennis-ball collector is useful for collecting scattered tennis balls after a game or practice without the need to bend and pick them up by hand. The device moves balls using a vacuum system or a drive belt.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: February 22, 2022
    Inventor: James Jennings
  • Patent number: 10583578
    Abstract: The present disclosure includes a method for the control of water flow within a hydraulic food cutter assembly having a pump, a pump discharge line, a cutter assembly a product supply tank, and a fluid transport medium and comprises a method for increasing the flow of fluid transport medium through the pump while maintaining a preselected velocity for the flow of the fluid transport medium in pump discharge line by using a frustoconical accelerator tube attached to the discharge line of the pump having a plurality of apertures through which the fluid transport medium may flow out of the accelerator tube into fluid tight housing encasing the accelerator and a throttling valve operatively attached to the fluid tight housing discharge line for regulating the pressure of the fluid medium being discharge from the pump so as to maximize fluid medium flow through the pump at a preselected pressure in the discharge line.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: March 10, 2020
    Assignee: Southern Fabrication Works, LLC
    Inventors: Neil Justesen, Fred Leoni
  • Patent number: 10485170
    Abstract: A debris removal system for an agricultural harvester may include an extractor having an extractor housing defining a central airflow channel for directing debris through the extractor from a central inlet to a central outlet. The extractor housing may further define an outer airflow channel surrounding the central airflow channel. The outer airflow channel may define a flow path between an outer housing inlet and an outer airflow outlet. Additionally, the extractor housing may include an internal divider wall extending between the central and outer airflow channels. Moreover, the system may include at least one flow-generating device provided in operative association with the housing. The flow-generating device(s) may be configured to generate an airflow directed through the outer airflow channel, wherein the airflow generates a negative pressure within the central airflow channel that draws the debris into the extractor housing via the central airflow inlet.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: November 26, 2019
    Assignee: CNH Industrial America LLC
    Inventors: Fabio Nicora, Joao Augusto Marcolin Lucca
  • Patent number: 10457501
    Abstract: A system and method for loading material from a converter bed, such as that in a converter of an acid plant, is provided. The system, may include a vacuum source; a dust collector connected to the vacuum source by a first vacuum hose; a cyclone operatively connected to the vacuum source through the dust collector, wherein the cyclone may be connected to the dust collector by a second vacuum hose; a drop-out hopper operatively attached to the cyclone by a valve, such as an air actuated valve, wherein the drop-out hopper includes a first feed hose; and one or more material storage containers operatively associated with the cyclone via a second feed hose. The method of loading material into a converter bed may include providing a system for loading the material in the converter bed; setting up the system; and loading the material into the converter bed.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: October 29, 2019
    Assignee: Cyclone Catalyst Properties, LLC
    Inventors: Kelly O. Wilkinson, Richard Scott Norville
  • Patent number: 10322426
    Abstract: The present invention provides a vibrating sieving apparatus and a real time powder sieving system. The apparatus includes a powder pump assembly connected to a vibrating device through a powder suction tube wherein the vibrating device (120) is configured for real time sieving of powder just before spraying. The apparatus further includes a housing (130) connected to the vibrating device (120) wherein the housing (130) includes a sieve section (140) and an anti blinding section (135).
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: June 18, 2019
    Inventor: Amal Bhupendra Shah
  • Patent number: 10252282
    Abstract: A mixer for drawing and mixing a solid product, such as a powder, with a liquid from a tank includes a drawing wand which has a drawing tip suitable for drawing the product and a mixing vat which has a rotation shape delimited by a side wall. The discharge tip of the drawing wand leads into the top of a vat and injects the product into the vat. In one form, the mixer includes a hydraulic circuit designed to circulate the liquid between the tank and the vat. The circuit includes at least one injection duct having at least one injection nozzle that leads into the top of the vat so that the liquid from the tank flows over the side wall of the vat.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: April 9, 2019
    Assignee: EXEL INDUSTRIES
    Inventors: Fabien Chapron, Anthony Darrieutort
  • Patent number: 10159925
    Abstract: An air filter and a method of air filtration using the said air filter are described. The air filter may comprise a filter media layer adapted to capture and filter one or more impurities from air. The air filter may further comprise one or more acoustic wave generating means attached at one or more sides of the filter media layer. The one or more acoustic wave generating means may generate acoustic waves to be propagated into the filter media layer. The propagation of the acoustic waves into the filter media layer may facilitate the filter media layer to enhance the filtration efficiency of the air filter. The air filter may further comprise a pre-programmed chip to control the frequency of the acoustic waves generated. Further, air filter may comprise a battery adapted to supply power to the one or more acoustic wave generating means and the pre-programmed chip.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: December 25, 2018
    Assignee: Aurabeat Holdings Limited
    Inventors: Gin Nam Sze To, Steven Nai-Kin Chan
  • Patent number: 10046366
    Abstract: A sieving apparatus for fractionating a grain product comprises a top chamber separated from a bottom chamber by a sieve; a top chamber cover defined by a plurality of openings that allow substantially vertical entry of an air stream into the top chamber when the interior of the sieving apparatus is under vacuum via first exit port in a side wall of the bottom chamber for exit of air; an inlet port in a sidewall of the top chamber, the inlet port configured for feeding of dry grain particles into the top chamber and for substantially horizontal entry of air into the top chamber; and a first exit port in a sidewall of the bottom chamber for exit of air and exit of a first grain fraction from the bottom chamber when the interior of the sieving apparatus is under vacuum via the exit port.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: August 14, 2018
    Assignee: GRAINFRAC INC.
    Inventor: Thavaratnam Vasanthan
  • Patent number: 9776335
    Abstract: The present disclosure includes a hydraulic food cutter assembly having a pump, a pump discharge line, a cutter assembly a product supply tank, and a fluid transport medium comprising a method and apparatus for increasing the flow of fluid transport medium through the pump while maintaining a preselected velocity for the flow of the fluid transport medium in pump discharge line by using a frustoconical accelerator tube attached to the discharge line of the pump having a plurality of apertures through which the fluid transport medium may flow out of the accelerator tube into fluid tight housing encasing the accelerator and a throttling valve operatively attached to the fluid tight housing discharge line for regulating the pressure of the fluid medium being discharge from the pump so as to maximize fluid medium flow through the pump at a preselected pressure in the discharge line.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: October 3, 2017
    Inventors: Neil Justesen, Fred Leoni
  • Patent number: 9739032
    Abstract: A self cleaning collecting apparatus and method are provided for the collection of seafloor material. The collecting apparatus, which operates on a seafloor, has a plurality of rotating discs in front of a slurry suction pipe with clearing members located between adjacent discs. Any oversize material lodged in the discs during collection is dislodged by the one or more clearing members and prevented from entering the slurry suction pipe, thus preventing blockages caused by oversize material congesting the slurry suction pipe.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: August 22, 2017
    Assignee: Eda Kopa (Solwara) Limited
    Inventor: Roland Berndt
  • Patent number: 9428887
    Abstract: A flush water container system for the flush water of a mobile toilet (11), in particular of a mobile vacuum toilet (11), comprising a flush water container (43) having a flush water container inflow (44), characterized in that the flush water container (43) is designed to receive gray water from a washbasin (10), which in particular is a wash hand basin or a shower washbasin, and a metering device (41) is provided, which is in fluidic communication with the flush water container (43) and is designed to treat the gray water by feeding a descaling and/or bactericidal treatment agent, wherein the flush water container (43) is designed to release the treated gray water as flush water to the mobile toilet (11).
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: August 30, 2016
    Assignee: EVAC GmbH
    Inventors: Tariq Zahir, Tobias Wendt, Detlev Both
  • Patent number: 9138750
    Abstract: The present invention is directed to a spray apparatus and methods for the separation of plant embryos.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: September 22, 2015
    Assignee: Weyerhaeuser NR Company
    Inventors: Anthony P. Swanda, Robert A. Starr, Henry M. Givens
  • Patent number: 9033155
    Abstract: A screening device (1) comprises a first compartment (3) for receiving solid particulate material, a second compartment (5) for receiving screened particulates from said first compartment (3), a perforated wall (7) separating the first (3) and second (5) compartments from each other for screening the solid particulate material into at least two particulate size-dependent fractions, and a gas permeable layer (21) for fluidization of particulates in said first compartment (3). The first compartment (3) is provided with a solid particulate material inlet (9) located at a first end (22) of screening device (1), and a particulate material outlet (11) located at a second end (24) of screening device (1), with perforated wall (7) extending from first end (22) to second end (24) of screening device (1), enabling simultaneous transport and screening of at least a portion of said solid particulate material.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: May 19, 2015
    Assignee: ALSTOM Technology Ltd
    Inventor: Anders Kenneth Sorhuus
  • Patent number: 8812726
    Abstract: Apparatus, methods and computer programs enable carrying service insertion architecture data plane packets in IPv4 or IPv6 networks by packaging destination addresses using IPv6 mechanisms. For example, a data processing apparatus is configured for receiving, from a service broker, a service label and an Internet Protocol version 6 (IPv6) address of a first service node; receiving an IPv4 packet requesting a service associated with the first service node; creating an IPv6 packet comprising a service label in a Flow Label field of the IPv6 packet, the IPv6 address of the first service node in a destination address field of the IPv6 packet, and the IPv4 packet in a payload field of the IPv6 packet; forwarding the IPv6 packet to the first service node. Approaches allow service insertion architecture support for all-IPv6 traffic including tunneled and non-tunneled techniques for environments in which user applications place data in the flow label field.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: August 19, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Mohamed Khalid, Ciprian Popoviciu, Patrick Grossetete, Kenneth Durazzo
  • Publication number: 20140209530
    Abstract: An adjustable nozzle assembly for a sieve box and a sieve box including same, including a support assembly and nozzles. A pair of elongated support members may be received through openings in support collars. Nozzles may be operatively connected to the collars. The support assembly, which may include collars and rods, are configured to provide at least one of lateral movement and rotational movement of the nozzles. At least one of the first elongated support member and the second elongated support member may be configured to move when coupled to the sieve box to adjust a spray angle of the nozzles. Pivoting of the one rod about the other rod adjusts the angle at which the nozzles are disposed. The rods may be externally threaded, and the collars may be internally threaded, such that when the rods are rotated, the collars translate laterally along the rods to move the nozzles.
    Type: Application
    Filed: January 29, 2014
    Publication date: July 31, 2014
    Applicant: Bilfinger Water Technologies, Inc.
    Inventors: Charles H. Flansburg, Michael Richard Ekholm, Steven Douglas Dehn, Dean Brabec, Michael Hans Pierotti
  • Patent number: 8678196
    Abstract: The invention relates to an air jet sieve device having a housing, at least one sieve for insertion in the housing, a sieve deck and chamber located below the sieve, a slotted nozzle beneath the sieve deck, a drive for the slotted nozzle, an air inlet to the slotted nozzle, an air outlet through the housing and out of the chamber located beneath the sieve deck, and a control unit to control operation of the device. The invention also relates to a method that permits not only detection of the sieving progress during a sieving process but also provides a criterion to permit establishing the sieving time. This is achieved by equipping the sieving machine with a measuring sensor through which the particles in the air outlet flow are detected triboelectrically and which are correlated with the sieving progress to permit establishing the sieving time.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: March 25, 2014
    Assignee: Hosokawa Alpine Aktiengesellschaft
    Inventors: Hans Kaiser, Georg Konetzka, Markus Schönwetter
  • Publication number: 20130206650
    Abstract: A screening machine for superfine powder. The screening machine includes a casing, a screen drum, a funnel, a negative pressure chamber, a rotary air spray pipe, a drive motor, a blast pipe, and a feed pipe. The screen drum is disposed in the middle part of the inner cavity of the casing. The funnel is disposed beneath the casing. The opening of the screen drum is arranged on the bottom of the screen drum and communicates with the upper opening of the funnel. The inner cavity of the casing communicates with the external induced draft fan via the negative pressure chamber disposed on the upper part of the casing. The rotary air spray pipe is arranged in the space between the screen drum and the casing. The middle part of the transverse pipe is connected via a transmission with the drive motor.
    Type: Application
    Filed: March 18, 2013
    Publication date: August 15, 2013
    Applicant: HENAN KANGXING PHARMACEUTICAL CO., LTD.
    Inventor: HENAN KANGXING PHARMACEUTICAL CO., LTD.
  • Publication number: 20130206649
    Abstract: A screening device (1) comprises a first compartment (3) for receiving solid particulate material, a second compartment (5) for receiving screened particulates from said first compartment (3), a perforated wall (7) separating the first (3) and second (5) compartments from each other for screening the solid particulate material into at least two particulate size-dependent N fractions, and a gas permeable layer (21) for fluidization of particulates in said first compartment (3). The first compartment (3) is provided with a solid particulate material inlet (9) located at a first end (22) of screening device (1), and a particulate material outlet (11) located at a second end (24) of screening device (1), with perforated wall (7) extending from first end (22) to second end (24) of screening device (1), enabling simultaneous transport and screening of at least a portion of said solid particulate material.
    Type: Application
    Filed: June 28, 2011
    Publication date: August 15, 2013
    Applicant: ALSTOM TECHNOLOGY LTD
    Inventor: Anders Kenneth Sorhuus
  • Patent number: 8360244
    Abstract: A new type of asymmetric flow field flow fractionator, A4F, is described permitting improved sample fractionation means by providing a range of available channel lengths within the same A4F unit. With such an apparatus, samples may be optimally separated by performing such fractionations as a function of channel length. The ability to vary channel length within the same A4F unit has heretofore been unavailable.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: January 29, 2013
    Assignee: Wyatt Technology Corporation
    Inventors: Philip J. Wyatt, Michelle H. Chen, David N. Villalpando
  • Publication number: 20120298564
    Abstract: The present invention is a method and apparatus for acoustically manipulating one or more particles.
    Type: Application
    Filed: August 10, 2012
    Publication date: November 29, 2012
    Applicant: LOS ALAMOS NATIONAL SECURITY, LLC
    Inventors: Gregory Kaduchak, Michael D. Ward
  • Publication number: 20110174698
    Abstract: The invention relates to an arrangement for fractionating a suspension of fibrous material suitable for creating a web of paper, board, tissue or some other fibrous material into a short fiber fraction with a high proportion of short and/or stiff fibers and/or vessel cells and a long fiber fraction with a high proportion of long and/or flexible fibers, comprising a screen element with screen openings which is taken past at least one nozzle which directs a jet of the fibrous material suspension onto the screen element, wherein the long fiber fraction is collected on the side of the screen element that is facing the nozzle and the short fiber fraction is collected on the opposite side of the screen element.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 21, 2011
    Inventors: Jonas Bergström, Reinhard Bluhm, Tillman Katzenmeier, Wolfgang Mannes, Marc Perrin
  • Patent number: 7909170
    Abstract: A vibratory separator including a housing having a drilling material inlet and at least one basket, at least one screen assembly configured to be disposed in the at least one basket, an actuator connected to the at least one basket, wherein the actuator provides vibratory motion to the at least one basket, a sump configured to receive drilling material that passes through the at least one screen assembly, and at least one spray nozzle for cleaning the vibratory separator is disclosed. A method for cleaning a vibratory separator including providing instructions to a programmable logic controller to activate at least one spray nozzle disposed on the vibratory separator is also disclosed.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: March 22, 2011
    Assignee: M-I L.L.C.
    Inventors: Bradley N. Jones, Brian S. Carr
  • Publication number: 20090301942
    Abstract: A new type of asymmetric flow field flow fractionator, A4F, is described permitting improved sample fractionation means by providing a range of available channel lengths within the same A4F unit. With such an apparatus, samples may be optimally separated by performing such fractionations as a function of channel length. The ability to vary channel length within the same A4F unit has heretofore been unavailable.
    Type: Application
    Filed: June 9, 2008
    Publication date: December 10, 2009
    Applicant: Wyatt Technology Corporation
    Inventors: Philip J. Wyatt, Michelle H. Chen, David N. Villalpando
  • Patent number: 7597201
    Abstract: A device for cleaning a suspension, preferably a fibrous suspension for paper production. The device includes a screen basket, on the exterior surface of which the suspension to be cleaned is supplied and from the interior surface of which the screened accepted stock is released. A housing surrounds the screen basket. The housing includes an inflow for the suspension to be cleaned, an accepted-stock outlet for the cleaned suspension and a reject outlet for impurities. A scraping device rotates on the outside of the screen basket about the screen basket axis and has scraper blades (foils) which scrape along the exterior surface of the screen basket. The scraping device comprises a drum with a cylinder surrounding the screen basket. The cylinder carries a plurality of foils on its inside facing the screen basket.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: October 6, 2009
    Assignee: Voith Patent GmbH
    Inventors: Werner Brettschneider, Rainer Meisenberg
  • Publication number: 20090120846
    Abstract: A screening apparatus for separating components of a material by vibratory separation which, in certain aspects, includes a vibratable box connected via vibration isolators within a container, the box including screening apparatus thereon or the vibratory separator having replaceable screening cartridges within a container. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Application
    Filed: October 10, 2008
    Publication date: May 14, 2009
    Inventor: George Alexander Burnett
  • Patent number: 7284664
    Abstract: Mechanisms and techniques provide a data acquisition basic input output system between a central controller and a set of modules networked to the central controller. The central controller obtains at least one command to be sent to at least one module of the set of modules networked to the central controller and composing a request message containing the command. The request message has an associated timing pattern selected from a plurality of available timing patterns, such as a fixed timing pattern or a variable timing pattern. The central controller transmits the request message to the module(s) according to the associated timing pattern and receives, according to the associated timing pattern, a response message from the module(s). The data acquisition basic input output system communications do not require reliance on transport layer protocols or collision avoidance techniques.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: October 23, 2007
    Assignee: United Electronic Industries
    Inventors: Olexiy Ivchenko, Denys L. Kraplin
  • Publication number: 20070199883
    Abstract: A device for cleaning a suspension, preferably a fibrous suspension for paper production. The device includes a screen basket, on the exterior surface of which the suspension to be cleaned is supplied and from the interior surface of which the screened accepted stock is released. A housing surrounds the screen basket. The housing includes an inflow for the suspension to be cleaned, an accepted-stock outlet for the cleaned suspension and a reject outlet for impurities. A scraping device rotates on the outside of the screen basket about the screen basket axis and has scraper blades (foils) which scrape along the exterior surface of the screen basket. The scraping device comprises a drum with a cylinder surrounding the screen basket. The cylinder carries a plurality of foils on its inside facing the screen basket.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 30, 2007
    Applicant: VOITH PATENT GMBH
    Inventors: Werner BRETTSCHNEIDER, Rainer MEISENBERG
  • Patent number: 7231927
    Abstract: An object of the invention is to provide a method and an apparatus for recycling plastics which is improved with respect to operation efficiency, operation environment, lowering degradation of plastics, recycling cost and environment load including saving energy. The recycling is made as follows: coarse-crushing used-up plastic products, separating plastic materials from other foreign matters by air blow separation, fine-crushing the separated plastics, washing the fine-crushed plastics by the process using a circulation flow including a spiral flow in which interaction between crushed plastics helps themselves clean without washing agents, dewatering the washed plastics, drying them, removing metallic matters by using metal detector, then feeding them directly without pelletizing to an injection molding machine of which nozzle part is equipped with filter and flow-switching mechanism for cleaning the filter by backwash reverse filtration.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: June 19, 2007
    Assignee: Fujifilm Corporation
    Inventor: Kazuyoshi Suehara
  • Patent number: 7163106
    Abstract: A strainer for fibrous suspensions, having a container, a filtering basket inside the container and a rotor inside the filtering basket coupled to motorization means suited to set it rotating. In the container there are a drain chamber of the rejected suspension, a delivery chamber of the filtered suspension, and a collector body arranged in the upper part of the container. The collector body has a lower collector and an upper collector, both with radial longitudinal profile in the shape of a truncated cone and connected to each other in correspondence with the long bases. The lower collector has its short base facing the filtering basket and the upper collector has its short base facing upwards.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: January 16, 2007
    Assignee: Comer S.p.A.
    Inventor: Giancarlo Dal Maso
  • Patent number: 6905528
    Abstract: An arrangement used for filtering out conveying air when supplying fiber material to a processing machine is provided. The arrangement has an essentially vertical filling chute for the fiber material, the chute having an upper intake opening and a lower exit opening, a device with pneumatic fiber feed at the upper intake opening, and a floccule-forming device at the lower exit opening including a system of draw-in rolls and a fast-rotating opening roll. The chute includes at least one air-permeable surface for separating the fiber material from the conveying air. An evacuating device evacuates the filtered out conveying air. An exhaust air device is coupled to the evacuating device and has an air stream regulator which is connected to a control and regulating device. The conveying air stream is guided along the opening roll, and a partial air stream of the filtered out conveying air is guided into the exhaust air device.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: June 14, 2005
    Assignee: Trützschler GmbH & Co. KG
    Inventor: Bernhard Rübenach
  • Publication number: 20030042176
    Abstract: A method of separating at least part of one or more components from a mixture of components includes exposing the mixture to a porous barrier, the barrier being formed of a material structure having, or behaving in the manner associated with, a negative Poisson ratio. Through the use of such materials, improved reparations, improved de-fouling of barriers and a variety of other beneficial properties can be obtained.
    Type: Application
    Filed: September 5, 2002
    Publication date: March 6, 2003
    Inventors: Andrew Alderson, Kenneth Ernest Evans, John Rasburn
  • Publication number: 20030034277
    Abstract: A compact dedusting apparatus is mounted on the machine utilizing particulate material requiring contaminant cleansing to provide an economical and effective decontamination of particulate material immediately before utilization of the material. The dedusting apparatus includes a downwardly sloped infeed chute having an opening at the bottom thereof. A metering device in the form of a rotatable finned hub blocks the opening to constantly meter the flow of particulate material through the dedusting apparatus. The metering device is formed with flexible blades oriented at a slight angle to the slope of the infeed chute to provide a constant flow of material through the opening. A flow of air is directed through a wash deck positioned below the infeed chute to cleanse the particulate material. The air flow is directed along multiple paths including a path defining an air knife associated with the wash deck to facilitate the cleansing of the material.
    Type: Application
    Filed: August 12, 2002
    Publication date: February 20, 2003
    Inventor: Jerome I. Paulson
  • Publication number: 20020079072
    Abstract: Process for manufacturing screens and screens suitable for use in wet screening fibrous paper suspensions, in which the screens include at least one screen plate having a number of sorting apertures. The process includes providing a number of fastening openings in the at least one screen plate, and inserting profiled pieces into the fastening openings. At least a portion of the profiled pieces are arranged to project beyond a screen surface.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 27, 2002
    Applicant: Voith Paper Patent GmbH
    Inventors: Werner Brettschneider, Jurgen Fey
  • Publication number: 20020069985
    Abstract: Pressurized screen to remove contaminants from a contaminant-containing fibrous paper suspension. Pressurized screen includes a housing, a first screen element, essentially axially symmetric and rotatably mounted within housing, and a second screen element, which is essentially axially symmetric. First and second screen elements are successively arranged in suspension flow direction. At least one intake, coupled to housing, supplies suspension to housing, and at least one accepts outlet, coupled to housing, conveys a part of suspension that passes through the second screen element out of housing. At least one coarse reject outlet is located within housing to remove a part of suspension not passing through first screen element, and at least one fine reject outlet is located within housing to remove a part of suspension not passing through second screen element. First screen element includes conical shape with opening angle (&agr;) between about 10° and 170°.
    Type: Application
    Filed: December 4, 2001
    Publication date: June 13, 2002
    Applicant: VOITH PAPER PATENT GmbH
    Inventors: Reimund Rienecker, Peter Schweiss
  • Patent number: 6368387
    Abstract: A device for recovering powder in an installation for spraying pulverulent coating product. The device includes: at least one cyclone for separating the powder recovered in the installation and its conveying air, and a sieve associated with the or each cyclone. The device further includes a perforated plate disposed on the path of the recovered powder, between the cyclone and the sieve.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: April 9, 2002
    Assignee: Sames Technologies
    Inventors: Thierry Buquet, Stéphane Bonal, Michel Fossacera, Daniel Belmain
  • Patent number: 6360897
    Abstract: A screen device for separating fiber suspensions comprises a screen (40) defining a central chamber (36), and a rotor (15) in the central chamber having a first (21) and a second (27) rotor portion, respectively, provided with first (43) and second (41) pulsation elements, respectively, for pulsating the suspension close to the screen along a first (11) an a second (9) axial screen portion, respectively, of the screen. The first rotor portion (21) and the first axial screen portion (11) define a first screen chamber (39) and the second rotor portion (27) and the second axial screen portion (9) define a second screen chamber (37). Distribution means (22, 28) are provided for dividing the incoming fiber suspension into two part streams having the same axial directions in relation to the rotor and for distributing the two part streams to the first and second screen chambers (39, 37), respectively.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: March 26, 2002
    Assignee: Valmet Fibertech Aktiebolag
    Inventors: Kjell Forslund, Klas Kriström
  • Patent number: 6357596
    Abstract: The invention in the simplest form is a passive method and apparatus for filtering motile sperm from a sperm sample. The invention passively filters the motile sperm using a membrane assembly disposed in a container. In operation, a sperm sample is placed on one side of the membrane assembly, and the motile sperm migrate through the membrane where they can be easily extracted.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: March 19, 2002
    Inventors: Amnon Weichselbaum, Shalom Bar-Ami, Benjamin Rivnay, Helene Stroh
  • Patent number: 6338412
    Abstract: Cylindrical screen, particularly for paper pulp, of the type comprising at least one filtering element (10) positioned between two flanges (1, 2) by means of a number of bars (3). The filtering element is composed by wires (10) placed side by side and held by rings (11). This filtering element is rigid in the axial direction and is placed upstream from the above mentioned bars (3), in relation to the direction of flow of the pulp. The filtering element is held against the bars (3) through the rings (11) that are in contact with the bars without being attached to them, so as to maintain its shape by withstanding the pressure exerted by the pulp.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: January 15, 2002
    Assignee: E & M Lamort
    Inventors: Alain Serres, Alain Fernandez Degrado
  • Patent number: 6329436
    Abstract: A system and process for recycling shredder residue, in which separating any polyurethane foam materials are first separated. Then separate a fines fraction of less than about ¼ inch leaving a plastics-rich fraction. Thereafter, the plastics rich fraction is sequentially contacted with a series of solvents beginning with one or more of hexane or an alcohol to remove automotive fluids; acetone to remove ABS; one or more of EDC, THF or a ketone having a boiling point of not greater than about 125° C. to remove PVC; and one or more of xylene or toluene to remove polypropylene and polyethylene. The solvents are recovered and recycled.
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: December 11, 2001
    Assignee: The University of Chicago
    Inventors: Bassam J. Jody, Edward J. Daniels, Patrick V. Bonsignore
  • Patent number: 6311850
    Abstract: A pressure screening apparatus for screening a stock suspension and screen clearer for a pressure screening apparatus.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: November 6, 2001
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Hans Friedrich, Josef Bruckner, Gerhard Veh
  • Patent number: 6299695
    Abstract: A method and apparatus for processing or cleaning ceramic components that are contaminated with dust deposits are provided. Relative vibrations are generated between the ceramic components and the ambient atmosphere for dislodging dust deposits from the ceramic components. Dislodged dust deposits are collected and conveyed away for disposal or further use. To accomplish this, a screen base is disposed within a closable chamber. A first conveyor is disposed within the chamber below the screen base and leads to a transfer station. A mechanism for generating relative vibrations is disposed between the screen base and the atmosphere of the chamber. An enclosed second conveyor leads from the transfer station to a replacable receiving vessel. An infra sound producer is disposed within the chamber.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: October 9, 2001
    Assignee: Steag Aktiengesellschaft
    Inventor: Ralf Gilgen
  • Patent number: 6129214
    Abstract: The invention in the simplest form is a passive method and apparatus for filtering motile sperm from a sperm sample. The invention passively filters the motile sperm using a nucleopore membrane that is contained within a membrane assembly, wherein the membrane assembly is disposed in a container. In operation, a medium is placed in the container so the membrane contacts the medium. A sperm sample is placed one side of the membrane assembly, and the motile sperm migrate through the membrane leaving the non-motile sperm behind, where they can be easily extracted.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: October 10, 2000
    Inventors: Shalom Bar-Ami, Amnon Weichselbaum
  • Patent number: 5925249
    Abstract: Apparatus for screening pulp suspensions containing heavy impurities is disclosed including a casing with an inlet for the pulp suspension at the lower end of the casing, a stationary screen mounted within the casing, a rotor mounted for rotation within the stationary screen thus forming a screening zone between the rotor and the stationary screen, with the inlet disposed within the rotor, the rotor including at least one opening adjacent to its upper end for transferring the pulp into the screening zone and a chamber for the heavy impurities disposed adjacent to either the upper or lower end of the casing, the rotor including strips or grooves for moving heavy impurities from the inner surface of the rotor to the chamber.
    Type: Grant
    Filed: April 7, 1998
    Date of Patent: July 20, 1999
    Assignee: Sunds Defibrator Industries AB
    Inventor: Borje Fredriksson
  • Patent number: 5908115
    Abstract: A method and apparatus for the classification of solid particles, in particular powdery catalytic components for the polymerization of olefins, which comprises sending solid particles suspended in a transporting gas flow through a screening device. Immediately upstream to the screening device there is an auxiliary fluidized bed classifier, in which the top of the bed is at the level of the lower part of the screening device.
    Type: Grant
    Filed: February 11, 1997
    Date of Patent: June 1, 1999
    Assignee: Montell North America, Inc.
    Inventors: Gabriele Govoni, Arrigo Arletti
  • Patent number: 5881887
    Abstract: The present invention is directed to an electrolytically produced screening material for the removal of fibers from suspensions during the production of pulp and paper. The screening material is a thin, smooth metal foil having perforations on the order of 10-80 .mu.m. And an open area of 5% to 40%.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: March 16, 1999
    Inventor: Sigurd Fongen
  • Patent number: 5873469
    Abstract: An improved vibrating screener is disclosed as including an inlet system which provides for tangential input of the material to be processed by the screener. A spacing frame is provided in connection with the tangential inlet in order to separate materials by disengaging particles from the input material as it spirals down the side of the spacing frame and feed tray. During the spiraling down action, the material decreases in velocity. During the separation process, an external loop is used for by-passed air, thereby providing the full diameter of the machine for the by-pass screen, to avoid by-pass screen blinding. The by-passed air can then be used to pick up the screened powder at the bottom of the unit; or, the by-passed air is reintroduced below the separating screen to flush the machine free of screened product.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: February 23, 1999
    Assignee: Kason Corporation
    Inventor: Lawrence H. Stone
  • Patent number: RE38738
    Abstract: Cylindrical screen, particularly for paper pulp, of the type comprising at least one filtering element (10) positioned between two flanges (1, 2) by means of a number of bars (3). The filtering element is composed by wires (10) placed side by side and held by rings (11). This filtering element is rigid in the axial direction and is placed upstream from the above mentioned bars (3), in relation to the direction of flow of the pulp. The filtering element is held against the bars (3) through the rings (11) that are in contact with the bars without being attached to them, so as to maintain its shape by withstanding the pressure exerted by the pulp.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: May 31, 2005
    Assignee: Kadant Lamort
    Inventors: Alain Serres, Alain Fernandez de Grado