Discharging Inside, E.g., Internal-type Drum Patents (Class 210/394)
  • Patent number: 10226793
    Abstract: A processing equipment for collecting matter adhering to a surface of packages to be processed, the equipment including: a rotary cylindrical drum provided with orifices forming a screen for retaining the packages and for allowing the matter for collection to pass through; a brush roller mounted in the drum in order to brush the inside surface of said drum; a motor for driving the brush and the rotary drum in rotation; an outer casing for collecting the matter that has passed through the wall of the rotary drum during processing; a compression device against the inside face of the drum mounted inside the rotary drum in the immediate vicinity of the inside surface of the drum.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: March 12, 2019
    Assignee: GREEN CREATIVE
    Inventor: Remi Gomez
  • Patent number: 9347295
    Abstract: Filtration systems, methods and/or apparatuses for use on a packer system are provided. Filtration assemblies and/or filters may prevent mud, gravel, and/or other solids from clogging and/or entering drains on a packer. The filters and/or filtration assemblies may have multiple dynamic components to prevent debris from entering the packer system. Rotary filters, cylindrical filters, and/or belt filters may be used to clear fluid obstructions from sampling drains. Helices and/or turbines may harness power of fluid flowing through the drains and/or flowlines to operate moving dynamic components of systems and/or apparatuses. The filters and/or filtration assemblies may be interchangeable such that various filters may be used on a single packer system.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 24, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Kathiravane Tingat Cody, Pierre-Yves Corre, Stephane Metayer
  • Patent number: 9272380
    Abstract: A chip conveyer for a machine tool includes a casing including a chip introducing port and a chip discharging port, and a chip carrying mechanism arranged in the casing so as to extend from the chip introducing port to the chip discharging port. Chips dropped in the casing through the chip introducing port are carried to the chip discharging port by the chip carrying mechanism. A partition plate partitioning an inside of the casing up and down is arranged in the casing, and a portion of the partition plate below the chip introducing port is configured to be openable and closable. A carrying direction of the chip carrying mechanism when the partition plate is in an open state and a carrying direction of the chip carrying mechanism when the partition plate is in a closed state are set to be opposite directions.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: March 1, 2016
    Assignee: DMG MORI CO., LTD.
    Inventors: Takahiro Nishiki, Takenori Nishizawa
  • Patent number: 9216369
    Abstract: In at least one embodiment, a filter device for filtering out of solid substance from a solid-liquid-mixture where the filter device includes a bearing shaft; a rotation body attached to the bearing shaft and supported by the bearing shaft to be rotatable; a single filter cell formed on the rotation body with a filter structure attached to the rotation body for filtering out the solid substance and a connection channel formed in the rotation body that extends from a filter structure outlet side to an outlet opening formed adjacent to the bearing shaft and via which the connection channel is permanently connected with an intermediate connection channel formed in the bearing shaft; a liquid discharge line connected with or formed by the intermediate connection channel; a plurality of branch-off lines which are branched-off from the liquid discharge line; and a control device having a valve assembly.
    Type: Grant
    Filed: December 26, 2011
    Date of Patent: December 22, 2015
    Assignee: ANDRITZ KMPT GmbH
    Inventors: Gunnar Grim, Bruno Hegnauer
  • Publication number: 20150008193
    Abstract: A separation system for separating solids from a slurry of waste material employs first and second separator assemblies. The first separator assembly has a main housing and a perforated drum supported for rotation relative to the main housing. The second separator assembly has a barrel member and an auger blade supported for rotation relative to the barrel member. The main housing is fixed relative to the barrel member such that rotation of the perforated drum removes a first solids portion from the slurry of waste material and rotation of the auger member removes a second solids portion from the slurry of waste material.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 8, 2015
    Inventor: David DeWaard
  • Patent number: 8496117
    Abstract: The filter apparatus for an incoming liquid which includes a retentate and a permeate includes a housing with a frame and a hollow drum assembly mounted for rotation within the housing. An inlet assembly delivers the incoming liquid under pressure to the drum assembly. A filter assembly is mounted to the inside of the drum. A trough assembly is mounted so as to be in a fluid-tight relationship to the interior surface of the filter assembly as the drum rotates past the trough assembly. A manifold is fixedly mounted and configured to cover successive columns of openings of the drum wall as the drum rotates. Pressurized gas is directed to the manifold, so that as the drum turns, and retentate is collected on the interior surface of the filter, pressurized fluid from the manifold dislodges the retentate into the trough and out an outlet assembly.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: July 30, 2013
    Inventor: William M. Leath, III
  • Patent number: 8236076
    Abstract: An apparatus for cleaning an air filter includes a body, a closed chamber formed within the body, a fluid dispersing member having a portion thereof mounted for rotation within the body and passing through the chamber, a plurality of orifices formed through the wall of the fluid dispersing member and an arrangement for rotating the fluid dispersing member. The arrangement either includes a combination of nozzles secured to the fluid dispersing member and positioned within the chamber and an irregular inner wall surface of the chamber capable of providing resistance to a fluid flow discharged into the chamber or fins disposed on the fluid dispersing member and a passageway through the body for directing fluid under pressure onto the fins. Fluid supplied under pressure to the fluid dispersing member exits through the plurality of orifices toward an inner surface of a air filter filtering medium causing contaminants to exit therefrom.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: August 7, 2012
    Inventor: Dennis Grieve
  • Patent number: 7638061
    Abstract: Coolant fluid cleaning method, system, and apparatus use a rotating magnet to remove particulate matter from a fluid used to cool or lubricate a machining or other operation. Such system includes a rotating magnet in fluid communication with apparatus circulating fluid past the rotating magnet. A scraper blade removes particulate matter which is picked up by the rotating magnet. The system or apparatus can include a dirty fluid reservoir, one or more conveyor which removes chips and particulate matter from the dirty fluid reservoir, and a clean fluid reservoir. The rotating magnet collects particulate matter in the dirty fluid reservoir and discharges the collected particulate matter to a discharge conveyance. When the rotating magnet is used in combination with a disc filter, the magnet relieves some cleaning load from the disc filter.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: December 29, 2009
    Assignee: Hennig Incorporated
    Inventor: Robin C. Moore
  • Patent number: 7344637
    Abstract: An apparatus serves for removing fine material to be screened from waste water. The apparatus includes a sieve grate (6) and a detaching device (16). The sieve grate (6) is cylindrical, and it is rotatingly driven. The sieve grate (6) allows for waste water to flow from its interior towards its exterior. The sieve grate (6) includes a supporting body (13) and a mesh sieve (7). The supporting body (13) is located at the exterior of the sieve grate (6). The supporting body (13) is made of a perforated sheet metal including comparatively large openings (37). The supporting body (13) provides for resistance and stability of the sieve grate (6). The mesh sieve (7) is located in the interior of the sieve grate (6). The mesh sieve (7) forms a separation surface (14) for the material to be screened. The mesh sieve (7) includes meshes of a comparatively small size. The mesh sieve (7) is fixedly connected to the supporting body (13). The detaching device (16) is arranged outside of the sieve grate (6).
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: March 18, 2008
    Assignee: Hans Huber AG Maschinen-und Anlagenbau
    Inventor: Christian Frommann
  • Publication number: 20080053889
    Abstract: The filter apparatus for an incoming liquid which includes a retentate and a permeate includes a housing with a frame and a hollow drum assembly mounted for rotation within the housing about a fixed central cylinder. The drum assembly has openings in the drum wall. An inlet assembly delivers the incoming liquid under pressure to the drum assembly. A filter assembly is mounted to the inside of the drum. A trough assembly is mounted so as to be in communication with the central cylinder and is in a fluid-tight relationship to the interior surface of the filter assembly as the drum rotates past the trough assembly. A manifold is fixedly mounted but has a substantially fluid-tight relationship with the exterior of the drum, and is configured to cover successive columns of drum openings as the drum rotates.
    Type: Application
    Filed: September 1, 2006
    Publication date: March 6, 2008
    Inventor: William M. Leath
  • Patent number: 7293658
    Abstract: A drum filter assembly comprising a hollow drum filter having a longitudinal axis and an outer filter screen or mesh material, the drum filter being supported on external rollers for rotation about its longitudinal axis and an inlet for introducing liquid to be filtered into the interior of the drum filter. Rotation of the drum filter is effected by the liquid flowing into the drum filter. Alternatively, the drum filter may be driven by an external motor.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: November 13, 2007
    Assignee: Cumminscorp Limited
    Inventor: Ian Geoffrey Cummins
  • Patent number: 7186281
    Abstract: A dust-removing device for the dust-collecting tank of a dust-collecting machine includes a guide frame installed inside the dust collecting tank and having a central guide rod for a brush base to move up and down thereon. The brush base has its outer circumferential edge provided with numerous brushing bristles able to reach the folded grooves in the inner wall of the dust-collecting tank. A pull unit is provided with plural pulley bases for a pull rope to pass therethrough. Two handles are respectively fixed with two lines of the pull rope exposed to the outer side of the dust-collecting tank, and the pull rope has two ends fastened with the brush base. When the two handles are moved downward alternately and repeatedly, the brush base can be moved up and down to carry out cleaning of the dust-collecting tank.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: March 6, 2007
    Assignee: San Ford Machinery Co., Ltd.
    Inventor: Chieh yuan Cheng
  • Patent number: 7160443
    Abstract: An apparatus for removing material from a liquid flowing through a channel includes a sieve grate, a screw conveyor and a detaching device. The sieve grate has an inflow side, an inner side and an outer side. The sieve grate is designed to be cylindrical and to be rotatably driven. The sieve grate is arranged at an inclined orientation to be partially submerged in the liquid. The sieve grate at the inflow side includes an open face. The sieve grate at the inner side includes a plurality of guide plates. The sieve grate includes a shaping carrier element. The sieve grate includes a mesh fabric, the mesh fabric being designed and arranged to form a separation surface for the material. The screw conveyor includes a housing. The screw conveyor includes a driven conveying screw. The screw conveyor is coaxially arranged with respect to the sieve grate.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: January 9, 2007
    Assignee: Hans Huber AG Maschinen- und Anlagenbau
    Inventor: Christian Frommann
  • Patent number: 7044307
    Abstract: A drum type paper stock refine screen is provided which is capable of efficiently filtering a refined paper stock to the outside of a laterally suspended rotary drum and efficiently discharging foreign matter to the outside of the drum while rotating the drum. The drum type paper stock refine screen includes a lower water infiltration zone formed by infiltrating a lower circular part on one end side of a laterally suspended rotary drum in a water tank, a non-water infiltration zone continuous with the lower water infiltration zone on the other end side of the rotary drum, and a paper stock injection port for injecting a paper stock in the lower water infiltration zone.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: May 16, 2006
    Assignee: Sakae Kohki Co., Ltd.
    Inventors: Eiichi Kamo, Nobuyuki Kamo
  • Patent number: 6651822
    Abstract: Horizontal solids recycler to treat waste water comprising refuse solids from hog farms which comprises an intake and loading hopper adapted to establish a uniform curtain of the waste water, a mesh to which an over flow of the waste water is directed, a tumbler cilinder to which is mounted the mesh and which is mounted to a frame which rests on guide wheels, blades mounted within the tumbler cilinder to raise moistured solids, wherein said water of said moistured solids is passed through a mesh, a collecting bin to collect the solids coming from the tumbler cilinder and raised by the blades which comprises a separator to separate the remaining water from the solids, a screw to transport the solids, which is mounted to the collecting bin, a pressing section which comprises a perforated cilinder to which the solids are fed by the screw, a collecting and recycling hopper to which said perforated cilinder is mounted to, and which said collecting and recycling hopper collects and recycles the wastewater to the tu
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: November 25, 2003
    Inventor: Noe Martinez Alanis
  • Patent number: 6581783
    Abstract: A fine solids separator 10 including a hollow housing 12 having a generally cylindrical wall 11. Located within the housing 12 is a cylindrical screen member 15 that is preferably formed of expanded metal mesh. The screen member 15 encloses a chamber 22 to which a flocculated sewage is delivered by means of an inlet duct 23. Located within the chamber 22 is an impeller 26 which at least aids circulation of liquid within the chamber 22 about the longitudinal axis of the chamber 22. Liquid leaves the chamber 22 via the screen member 15 and an outlet 25 extending from an outlet chamber 24 located between the member 15 and housing 12.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: June 24, 2003
    Assignee: CDS PTY LTD
    Inventors: Paul George Blanche, Brian Philip Formby, Hongshun Li
  • Patent number: 6571959
    Abstract: An improved coolant cleaning method, system, and apparatus, are provided through the use of a filter disk assembly that defines and is rotatable about an axis of rotation of the disk, for removing particulate matter from a fluid flowing through the filter disk assembly in a direction substantially parallel to the axis of rotation of the filter disk assembly. A coolant cleaning system includes such a filter disk assembly, connected in fluid communication with an apparatus for circulating a flow of fluid through the filter disk assembly in a direction substantially parallel to the axis of rotation of the filter disk assembly.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: June 3, 2003
    Inventors: Robin C. Moore, David M. Dambek
  • Patent number: 6488849
    Abstract: The present invention relates to a rotating device for continuously filtering a liquid such as a solution containing a precipitate.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: December 3, 2002
    Assignee: Compagnie Generale des Matieres Nucleaires
    Inventors: Gérard Bertolotti, Yves Lebiez
  • Patent number: 6451213
    Abstract: An apparatus for de-watering sludge. A main shaft is rotated about a longitudinal axis at a first rate. A screw shaft coupled to the main shaft is rotated about the longitudinal axis at the first rate. Screw flighting coupled to the screw shaft is rotated about the longitudinal axis at the first rate. A first and second stage drum are rotated about the longitudinal axis at a second rate. Sludge is introduced to a first area defined by an outer surface of the screw shaft and an inner surface of the first stage drum. Moisture is removed from the sludge through a first slot coupled to the first stage drum. The sludge is transported with the screw flighting from the first area to a second area defined by an outer surface of the screw shaft and an inner surface of the second stage drum, the second area being larger than the first area. Moisture is removed from the sludge through a second slot coupled to the second stage drum.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: September 17, 2002
    Assignee: Wawcon, Inc.
    Inventor: Gary W. Huebner
  • Patent number: 6432299
    Abstract: A method and apparatus are provided for receiving the solids discharge of a centrifuge, shaker, or other clarification system and further drying the solids discharge. The influent into the apparatus of the invention is in the form of a slurry, such as for example the solids discharge of a shaker or centrifuge in a drilling mud clarification system. The apparatus comprises a horizontal screen rotated at a high rate of speed to remove liquid from the slurry by centrifugal force. The horizontal screen is retained by a squirrel cage rotor so that high G-forces can be obtained. Within the horizontal screen is a screw conveyor which rotates at a speed slightly slower than the horizontal screen to define a controllable conveyor speed. In this way, the residence time of the solids in contact with the horizontal screen can be controlled to provide a drier solids discharge from the apparatus. The solids and liquids are provided with separate discharge ports.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: August 13, 2002
    Assignee: Hutchison-Hayes International, Inc.
    Inventors: Gary L. Hensley, Lee Hilpert
  • Patent number: 6419094
    Abstract: An apparatus for cleaning a rotating cylindrical wastewater screen of the type formed of tubular perforate wedgewire.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: July 16, 2002
    Assignee: Lyco Manufacturing, Inc.
    Inventors: David R. Zittel, Daniel D. Maupin, Theodore J. Long, Jr.
  • Patent number: 6395187
    Abstract: Horizontal solids recycler to treat waste water comprising refuse solids from hog farms which comprises an intake and loading hopper adapted to establish a uniform curtain of the waste water, a mesh to which an over flow of the waste water is directed, a tumbler cylinder to which is mounted the mesh and which is mounted to a frame which rests on guide wheels, blades mounted within te tumbler cylinder to raise moistured solids, wherein said waste water of said moistured solids is passed through a mesh, a collecting bin to collect the solids coming from the tumbler cylinder and raised by the blades which comprises a separator to separate the remaining waste water from the solids, a screw to transport the solids, which is mounted to the collecting bin, a pressing section which comprises a perforated cylinder to which the solids are fed by the screw, a collecting and recycling hopper to which said perforated cylinder is mounted to, and which said collecting and recycling hopper collects and recycles the waste wat
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: May 28, 2002
    Inventor: Noe Martinez Alanis
  • Publication number: 20020008060
    Abstract: A fine solids separator 10 including a hollow housing 12 having a generally cylindrical wall 11. Located within the housing 12 is a cylindrical screen member 15 that is preferably formed of expanded metal mesh. The screen member 15 encloses a chamber 22 to which a flocculated sewage is delivered by means of an inlet duct 23. Located within the chamber 22 is an impeller 26 which at least aids circulation of liquid within the chamber 22 about the longitudinal axis of the chamber 22. Liquid leaves the chamber 22 via the screen member 15 and an outlet 25 extending from an outlet chamber 24 located between the member 15 and housing 12.
    Type: Application
    Filed: May 17, 2001
    Publication date: January 24, 2002
    Inventors: Paul Lerlie BLANCHE, Brian Philip Formby, Hongshun Li
  • Patent number: 6338411
    Abstract: An arrangement comprising a filter cylinder (1) composed of an approximately horizontally extending alternately superposed array of fixed plates (8) having circular or approximately circular openings, and annular floating plates (9) having geometrically similar openings (13) slightly larger in diameter than the openings in the fixed plates and also having circular outer peripheries, with small filtration clearances defined, the row of openings in the fixed plates defining a cylindrical space having a fixed inner peripheral contour (3), it being arranged that when the row of openings in the floating plates is positioned outside the cylindrical space, at least two equi-level regions in the lower portion of the outer periphery of the floating plate are exposed beyond the outer edge of the fixed plate, a screw (2) extending through the cylindrical space, and eccentric shafts (12) contact-wise supporting the exposed outer peripheral portions of the floating plates and eccentrically rotated, so as to swing the floa
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: January 15, 2002
    Inventor: Toyokazu katabe
  • Publication number: 20010054581
    Abstract: The present invention relates to a rotating device for continuously filtering a liquid such as a solution containing a precipitate.
    Type: Application
    Filed: May 2, 2001
    Publication date: December 27, 2001
    Applicant: Compagnie Generale Des Matieres Nucleaires
    Inventors: Gerard Bertolotti, Yves Lebiez
  • 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: 6261454
    Abstract: Device for washing gluten, provided with at least one drum screen rotatably supported on a corrosion-resistant shaft, and equipped with means for supplying and discharging washing water and also with means for supplying the material to be treated at the one drum end and removing the treated gluten at the other drum end, at least two sets of spoke-type elements which are made of corrosion-resistant material and which support the circumferential wall of the drum screen being provided on the drum shaft at points disposed at a distance from one another in the longitudinal direction, which sets are each mounted, when viewed in the circumferential direction, on a bush which is made up of at least two parts made of corrosion-resistant material and attached to one another by flanges and which is to be firmly clamped to the shaft, the shaft being made of steel which is not corrosion-resistant and which has a high modulus of elasticity, and lining sleeves made of corrosion-resistant material being provided around the s
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: July 17, 2001
    Assignee: Cargill, B.V.
    Inventors: Adriaan J. van den Berge, Rumoldus C. H. M. Rasenberg, Jacobus de Rooij, Jacob Biemond
  • Patent number: 6241879
    Abstract: A filter cloth comprising at least a base layer and a filtering layer, characterized in that the ratio T/L of the thickness (T) of the filtering layer to the length (L) of fibers of fiber bundles constituting the filtering layer is 0.02 to 0.7 and the sum of a projected area of the fibers onto the base layer surface is 8 to 350 times the area of the base layer surface and, a filter cloth characterized in being constituted with at least a base layer and a filtering layer mainly composed of fiber bundles of crimped fiber ratio over 5%.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: June 5, 2001
    Assignee: Toray Industries, Inc.
    Inventors: Hiroyasu Kato, Manabu Terao, Yoshihiro Tomida
  • Patent number: 6227379
    Abstract: A method and apparatus for efficiently separating solids from liquid/solid slurries are disclosed. The slurry to be separated is retainably placed within a container having one or more lift paddles secured within its inner cavity. The container is supported for rotation about an axis and has drive means for slowly rotating the container. As the container rotates, the lift paddles lift a portion of the retained slurry, allowing the liquid portion to fall back into the primary slurry pool to be separated, and lifting coarse solids toward the top of the rotation path of the paddles. The separated solids slide by gravity from the lift paddles as they approach the top of their rotation paths and into a collection tray. A filter that rotates with the container filters fine solids from the liquid portion of the slurry and also deposits the fine solids on the collection tray. The filtered liquids can be readily pumped from or recirculated to the separator.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: May 8, 2001
    Assignee: NTH, Inc.
    Inventor: Clinton A. Nesseth
  • Patent number: 6186340
    Abstract: A drum filter comprises a pair of circular disks connected in coaxial relation by a plurality of axially extending disc support rods. A cylindrical filter media is disposed between the disc support rods. Unfiltered liquid is admitted to the interior of the drum filter and flows radially outwardly therefrom through the filter media. Reciprocating backwash nozzles direct high pressure liquid radially inwardly against the exterior surface of the filter media to backwash contaminants collected on the radially inner surface thereof into a contaminant collector disposed internally of the filter drum. The filter media is sealably connected to the circular disks by a novel retention system.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: February 13, 2001
    Inventor: Gene Hirs
  • Patent number: 6183653
    Abstract: An apparatus for removing sludge is applied to a generally cylindrical filter for use in an electric discharge machine. The filter removes sludge in a process solution used in the electric discharge machine by flowing the process solution from an inner periphery surface to an outer periphery surface and/or the outer periphery surface to the inner periphery surface of the filter. A filter support device holds the filter rotatively with the central axis thereof as the central figure and inclining the central axis by a predetermined angle to the horizontal direction. The filter support device also includes cams for providing rotational driving force and successive impactive force to the filter. A motor provides rotational driving force to the cams. Sludge storage may receive the sludge falling from the filter. The filter support device may further alternate the inclined direction of the filter in a predetermined cycle by rotating with an axis perpendicular to the central axis as the central figure.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: February 6, 2001
    Inventor: Takeshi Yoshida
  • Patent number: 6182833
    Abstract: A reciprocating power sprayer for cleaning a rotating cylindrical wastewater screen of the type formed of tubular perforate wedgewire. The spray is reciprocated on an elongated pneumatic cylinder which is arranged in parallelism along the cylinder wastewater screen. Controls are provided for automatically controlling the reciprocation of the spray.
    Type: Grant
    Filed: February 9, 2000
    Date of Patent: February 6, 2001
    Inventor: David R. Zittel
  • Patent number: 6177021
    Abstract: The invention relates to a method and a device for clearing product, e.g., sugar, from the inside of a centrifuge basket of a discontinues centrifuge. A scraper blade, which is attached to a clearing rod, is pivoted toward the spun-off layer of product. The scraper blade scrapes off the product with a cutting edge, which is directed in a direction that is opposite to the direction of rotation of the basket. To optimize the product removal, it is preferable if the scraper blade, after it has been pivoted inward, contacts the product over virtually the entire height of the basket and at the same time scrapes off the product from the layer of product which is rotating at the clearing rotational speed in layers over the entire height of the basket. Once the product has been substantially completely removed from the basket, the scraper blade is pivoted back away from the basket wall.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: January 23, 2001
    Assignee: Braunschweigische Maschinenbauanstalt AG
    Inventors: Siegfried Matusch, Mario Winnemuth
  • Patent number: 5992642
    Abstract: A filtering apparatus and filtering system where a hinge belt 10 of a hinge-belt type filtering apparatus 100 is continuously rotated by driving of a drive motor 65 such that hinge scrapers are rotated along a bottom plate 6b of the hinge filtering apparatus main body, from a horizontal part to a slope part of the hinge filtering apparatus main body.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: November 30, 1999
    Assignee: Kabushiki Kaisha Syst
    Inventor: Seizo Ota
  • Patent number: 5853585
    Abstract: A method and apparatus for efficiently separating solids from liquid/solid slurries are disclosed. The slurry to be separated is retainably placed within a container having one or more lift paddles secured within its inner cavity. The container is supported for rotation about an axis and has drive means for slowly rotating the container. As the container rotates, the lift paddles lift a portion of the retained slurry, allowing the liquid portion to fall back into the primary slurry pool to be separated, and lifting the solids toward the top of the rotation path of the paddles. The separated solids slide by gravity off of the lift paddles as they approach the top of their rotation paths and into a collection hopper and transport means that carry them away from the container. The liquids returned to the primary retained slurry within the container assist in washing the slurry for facilitating solids separation without required increase in the retained slurry volume.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: December 29, 1998
    Assignee: NTH, Inc.
    Inventor: Clinton A. Nesseth
  • Patent number: 5817505
    Abstract: Disclosed is a device for separating particles from a bulk liquid, such as viable hybridoma cells from antibody-containing liquid medium. The device comprises a plurality of settlement plates, or other surfaces, being inclined to the vertical, and a pump or other means for causing liquid containing the particles to flow upwardly over the surfaces at such a rate as to allow particles to be separated from the bulk liquid to form sediment layers on the surfaces and slide down them for collection at an appropriate point.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: October 6, 1998
    Assignee: Bioscot Limited
    Inventors: Keith John Thompson, James Samuel Wilson
  • Patent number: 5804071
    Abstract: A rotating disc filter for separating coarse phase from a liquid mixture having carrier elements and blocking means that prevent the coarse phase from falling back into the pool of incoming liquid mixture. The capacity of the filter is increased by the prevention of the coarse phase from being filtered again and thereby occupying filter area.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: September 8, 1998
    Assignee: Nordic Water Products AB
    Inventor: Roger Haeffner
  • Patent number: 5798039
    Abstract: A drum filter system includes a tank in which a rotary drum is disposed with liquid to be filtered entering inside the drum and exiting peripherally of the drum. The drum consists of a plurality of individual filter elements that are removable in a direction parallel to the axis of rotation of the drum. Each filter element is mounted using a unique mounting bracket assembly. A backwashing sub-system is provided that allows backwashing of individual filter elements as they are indexed into alignment with the backwashing sub-system. A conveyor conveys material removed from the filter elements by the backwashing sub-system to a point of discharge.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: August 25, 1998
    Inventor: Fred E. Wiesemann
  • Patent number: 5685983
    Abstract: An apparatus for filtering liquids, such as fiber suspensions or polluted water, includes a hollow rotating filter body adapted to receive the liquid to be filtered within the body. A plurality of guide members are attached to the filter body and distributed around the latter to receive cloudy filtrate penetrating the filter body at the descending side. A basin is arranged at the descending side of the filter body to collect cloudy filtrate poured from the guide members. As a result, the cloudy filtrate is prevented from mixing with the clear filtrate.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: November 11, 1997
    Assignee: Nordic Water Products AB
    Inventor: Siri Elly Viktoria Frykhult
  • Patent number: 5651881
    Abstract: A fluid recovery assembly continuously separates lubrication liquid from lubrication-impregnated shavings. The fluid recovery assembly includes a shredder which receives and shreds the lubrication-impregnated shavings. A centrifugal drum rotates the lubrication-impregnated shavings at a speed sufficient to pull the lubrication out of the lubrication-impregnated shavings. A single electrical motor supplies the energy to rotate the centrifugal drum, the shredder and any other hydraulically actuated accessory. When the high inertia centrifugal drum is accelerated to operating speed, little power is needed to keep it rotating. The path in which the fluid flows is changed from a free flow path (back to the reservoir) to a path including a hydraulic motor which powers the shredder. Thus, no separate electric motor is needed for the shredder. The shredder power is further enhanced by the flywheel effect of the centrifugal drum.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: July 29, 1997
    Inventor: Robert H. Dudley
  • Patent number: 5641398
    Abstract: A device for removing floating and suspended debris from a liquid flow passed through a liquid flow flume (3) is disclosed, the device including a separator (9) positioned within the liquid flow flume at an angle with respect to the flume and extending across the path of the liquid stream for collecting floating and suspended debris thereon. An elongated conveyor assembly (10) having an elongated tubular housing (20) with a first conveyor portion (11) and a second conveyor portion (12) is also provided as a part of the device. The first conveyor portion of the conveyor assembly is positioned within the separator and extends therefrom, the first portion of the conveyor assembly, as well as the conveyor assembly, being independently supported with respect to, and without being formed as a part of, the separator.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: June 24, 1997
    Assignee: Hans Huber GmbH Maschinen und Anlagenbau
    Inventors: Hans Georg Huber, Reinhold Fischer
  • Patent number: 5595655
    Abstract: A fluid filter assembly having a body with a chamber for receiving a filter element supported by the body. At least one cleaning device is positioned adjacent the inlet side of the filter element. The cleaning device includes a hollow duct for collecting dislodged particulate matter, an adjustable scraper or brush and a deflector substantially equal in length to the scraper or brush. Nozzles may be provided for directing pressurized cleaning fluid toward the cleaning device.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 21, 1997
    Assignee: TM Industrial Supply, Inc.
    Inventors: Carl A. Steiner, Ricky L. Jackson
  • Patent number: 5547573
    Abstract: The device comprises a first wide-mesh cloth or screen which bears against the calender of a basket, at least one tight supple tube connected to a source of gas under pressure which is against the first cloth or screen, a second cloth or screen identical to the first covering the tube such that the tube is sandwiched between the cloths or screens, and a fine-mesh filtering cloth covering the second cloth or screen.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: August 20, 1996
    Assignee: Robatel
    Inventor: Michel Martin
  • Patent number: 5500114
    Abstract: A separator device for separating solid material from liquid, particularly in sewage, has an outer casing with respective solid material and liquid outlets, a drum rotatable within the casing and formed of mesh panels for flow of liquid therethrough, spirals within the drum for moving the solid material within the drum, upon rotation, towards an outlet therefrom position above the solid material outlet of the casing, the spirals being each supported at their outer periphery by the periphery of the drum and at their inner periphery by an inlet feed tube and/or a central driven shaft of the drum, and in-line bearings around the shaft and a journal outside respective opposite ends of the casing.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: March 19, 1996
    Assignee: Managed Pollution Systems Limited
    Inventors: Michael S. Potter, Arthur S. Pittwood
  • Patent number: 5490928
    Abstract: A tandem waterwheel type trommel apparatus having a laterally-disposed drain-off drum and a laterally-disposed classifying drum combined through a short pipe to form a main body, which is rotatably disposed on a base and is connected to a drive unit. A front end plate and a rear end plate each having a doughnut-like shape are respectively provided at the front and rear ends the drain-off drum. A plurality of buckets are provided in the drain-off drum, and gutters are provided on the back side of upper end portions of the buckets. The gutters communicate with drain holes formed in the rear end plate. A fixed shoot is provided which extends through the drain-off drum to the classifying drum. The classifying drum has a cylindrical portion and a truncated-cone portion. A circumferential member of truncated-cone portion is made porous while a circumferential member of the cylindrical portion is formed of a wire netting. A screw is provided on the outer circumferential surface of the cylindrical portion.
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: February 13, 1996
    Assignee: Tanii Indusries Co., Ltd.
    Inventor: Masao Tanii
  • Patent number: 5443726
    Abstract: A fluid filter assembly having a body with a chamber for receiving a filter element supported by the body. At least one cleaning device is positioned adjacent the inlet side of the filter element. The cleaning device includes a hollow duct for collecting dislodged particulate matter, an adjustable scraper and a deflector substantially equal in length to the scraper. Nozzles may be provided for directing pressurized cleaning fluid toward the cleaning device.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: August 22, 1995
    Assignee: TM Industrial Supply, Inc.
    Inventors: Carl A. Steiner, Ricky L. Jackson
  • Patent number: 5435917
    Abstract: A rotary filter for filtering water out of water containing raw material such as fish guts and muds including a screw drum having a number of filtering holes formed therein and a screw having a shaft and a spiral vane secured to the outer surface of the shaft, in which the screen drum is arranged rotatably, the screw is arranged within the screen drum rotatably relative to the screen drum, and the screen drum and the screw are rotated by means of separate driving sources independently from each other. A period of time during which the water containing raw material is remained within the screen drum can be adjusted at will regardless of the rotation speed of the screen drum. Therefore, the screen drum can be rotated at a high speed while the raw material can remained within the screen drum for a long time period, so that the water filtering efficiency can be increased.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: July 25, 1995
    Assignee: Fukoku Kogyo Co. Ltd.
    Inventor: Hachiro Sato
  • Patent number: 5380436
    Abstract: A solid-liquid separator comprising a number of stationary rings arranged with spaces left therebetween, a number of floating rings each disposed movably in the spaces between the stationary rings and a screw conveyor provided in the inner space of the stationary and floating rings. The screw conveyor is driven in rotation to convey sludge water introduced into the space, and while being conveyed, only a water portion thereof is discharged to the exterior through the minute gaps between the floating and stationary rings. The motion of the floating ring prevents clogging of the solid portion in the minute gaps.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: January 10, 1995
    Assignee: Amukon Kabushikikaisha
    Inventor: Masayoshi Sasaki
  • Patent number: 5296136
    Abstract: Apparatus for separating solids and liquids has an initial separator for removing coarse solid material from a mixture of solids and liquids, a first screen for separating further solid material from the liquid and a first auger extending axially through the first cylindrical screen for removing the separated further solid material from the first cylindrical screen. A second screen receives the liquid from the first screen and separates fine particles from the liquid, and a compactor between the first and second screens compacts the solid material removed from the first screen by the first auger. A second auger is provided in the second screen for mixing and removing the compacted solid material and the separated fine particles.
    Type: Grant
    Filed: February 9, 1993
    Date of Patent: March 22, 1994
    Inventor: Gunther Abel
  • Patent number: 5281275
    Abstract: A sugar centrifugal operates at decreased speed to reduce crystal damage but suffers no loss of sugar crystal/molasses separation rate. This is accomplished by superposing a partial vacuum on the molasses chamber of the centrifugal which promotes removal of syrup and water from the sugar crystals through the centrifugal basket wall. Additional drying of the separated crystals is provided by injection of air above the sugar chamber to replace that which is extracted through the centrifugal basket wall.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: January 25, 1994
    Assignee: Silver Engineering Works, Inc.
    Inventor: Ted D. Milner