Internal Work Distributor Patents (Class 210/377)
  • Patent number: 11161581
    Abstract: A marine outboard motor for a marine vessel is provided. The marine outboard motor includes an internal combustion engine, a drive shaft configured to transmit a drive force from the internal combustion engine, a propeller shaft, and a drive transmission configured to transmit the drive force from the drive shaft to the propeller shaft. The motor also includes a lubrication system configured to convey lubricant along a lubricant flow path to lubricate one or both of the drive transmission and the drive shaft, and a lubricant filter provided along the lubricant flow path and configured to remove solid contaminants from the lubricant as it flows along the lubricant flow path. The lubricant filter is configured to be driven by the drive shaft.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: November 2, 2021
    Assignee: COX POWERTRAIN LIMITED
    Inventor: James Barratt
  • Patent number: 9861915
    Abstract: Screening apparatus includes a driving a shaft (12) into a screen housing (13) having a removable closure (14) and dividing wall (15) forming an underflow chamber (16) and an overflow chamber (17). The shaft (12) supports and drives an screen (21) comprising a plate steel basket carrier portion (22) axially spaced from intermediate ring frames (23) and an outer frame ring and flange (24), all interconnected by circumferentially spaced stringers (25) to form an all-welded, integral, generally truncated-conical screen (21) cage. The cage supports a wedge wire screening surface (26). The closure (14) and housing (13) mutually support an inlet assembly (27) comprising a chute (32) feeding the water and coarse coal to the inner end of the screen assembly (21). The integral, all welded screen (21) may be replaced as a unit without refurbishment.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: January 9, 2018
    Assignee: Weir Minerals Australia Limited
    Inventor: Michael Trench
  • Patent number: 9562540
    Abstract: A centrifugal rotor includes a rotor body, a diluent container, a piercing structure and a capping film. The rotor body has a receiving cavity. The diluent container is located within the receiving cavity and has a seal film. The piercing structure is located within the receiving cavity and in contact with the seal film. The capping film is located over the diluent container and the piercing structure for securing the diluent container and the piercing structure within the receiving cavity.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: February 7, 2017
    Assignee: PROTECTLIFE INTERNATIONAL BIOMEDICAL INC.
    Inventors: Chung-Hsien Tsai, Hsiao-Chung Tsai, Chih-Yu Chao, Ying-Lan Tsai
  • Publication number: 20150083672
    Abstract: A processing system for processing raw slurry material has a barrel member, at least one transport member, and at least one separator member. The barrel member defines a processing chamber and at least one intermediate opening. The processing chamber defines a pre-processing portion and a separator portion. The at least one transport member is arranged within the pre-processing portion of the processing chamber. The at least one separator member is arranged within the separator portion of the processing chamber and configured to define at least one separator gap. As the barrel member rotates about a longitudinal axis thereof, the at least one transport member transports at least a portion of the raw slurry material through the pre-processing portion of the processing chamber, and the at least one separator member transports at least a portion of the raw slurry material through the separator portion of the processing chamber.
    Type: Application
    Filed: November 17, 2014
    Publication date: March 26, 2015
    Inventor: David DeWaard
  • Publication number: 20150041384
    Abstract: Screening apparatus includes a driving a shaft (12) into a screen housing (13) having a removable closure (14) and dividing wall (15) forming an underflow chamber (16) and an overflow chamber (17). The shaft (12) supports and drives an screen (21) comprising a plate steel basket carrier portion (22) axially spaced from intermediate ring frames (23) and an outer frame ring and flange (24), all interconnected by circumferentially spaced stringers (25) to form an all-welded, integral, generally truncated-conical screen (21) cage. The cage supports a wedge wire screening surface (26). The closure (14) and housing (13) mutually support an inlet assembly (27) comprising a chute (32) feeding the water and coarse coal to the inner end of the screen assembly (21). The integral, all welded screen (21) may be replaced as a unit without refurbishment.
    Type: Application
    Filed: September 27, 2012
    Publication date: February 12, 2015
    Applicant: Weir Minerals Australia Limited
    Inventor: Michael Trench
  • Patent number: 8931645
    Abstract: Disclosed herein is a centrifugal filter. The centrifugal filter includes a shaft, a rotor housing which rotates around the shaft and has filter paper on the inner side surface thereof, a spindle tube which rotates along with the rotor housing around the shaft and discharges the fluid from the shaft into the rotor housing, and a separation film which separates an internal space of the rotor housing into upper and lower portions so that impurities that are removed from the fluid by means of centrifugal force are deposited in the upper portion of the internal space while filtered fluid flows into the lower portion of the internal space. A dispersing means is provided on the spindle tube to make a cross-sectional shape of the fluid discharged from the spindle tube into the rotor housing be an elongated shape so that the fluid is widely dispersed into the rotor housing.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: January 13, 2015
    Assignee: Shin Heung Precision Co., Ltd.
    Inventors: Yong-Keun Kim, Kun-Soo Kong, Deog-Hee Doh
  • Patent number: 8813973
    Abstract: An apparatus for filtering a material from a medium includes a first housing having a wall with a plurality of openings formed therein, a conveyor disposed in the housing for moving the material therealong, and a conduit line communicating with the interior of the housing for supplying the medium to the apparatus. At least one of the first housing and the conveyor rotate relative to a central axis to direct the medium toward the wall so as to separate the material from the medium. A method for filtering a material from a medium includes supplying the medium to a first housing, spinning the medium within the housing, passing the medium through a wall of the housing to separate the material from the medium, moving the material along the housing, introducing a fluid into the material within the housing, and washing the material using the fluid.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: August 26, 2014
    Assignee: Fluid-Quip, Inc.
    Inventors: Chie Ying Lee, Ren Jianmin
  • Patent number: 8778191
    Abstract: The invention concerns a centrifugal filtering device for filtering a fluid. The device comprises a rotatable inner casing forming an inner space and a rotatable outer casing forming an outer space. The device further comprises a fluid inlet, at least one filter and drive means. The drive means is configured to rotate the inner casing to create a centrifugal pressure. The pressure forces a part of the fluid contained in the inner space through the filter and to a radially outer position of the outer space. The filtered fluid forms a filtrate, the filtrate having a kinetic energy. The outer casing is configured to transport the filtrate from the radially outer position to a radially inner position of the outer space, permitting transfer of the kinetic energy from the filtrate to the outer casing, thereby permitting regaining of mechanical energy.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: July 15, 2014
    Assignee: Aqua Mundus AB
    Inventor: Fredrick Marelius
  • Patent number: 8721793
    Abstract: A feed pipe mixing system for delivering a homogenous massecuite product to a centrifuge comprising: a vertical feed pipe defining an upper end, and a lower end, the vertical feed pipe comprising: a mixing chamber disposed between the upper and lower ends of the vertical feed pipe and operable to mix a massecuite feed with feed water, surfactants, partially diluted molasses or a combination thereof to produce a massecuite product; a massecuite inlet disposed on the side of the vertical feed pipe above the mixing chamber, wherein the massecuite inlet is configured to deliver a massecuite feed into the vertical feed pipe; a massecuite outlet disposed on the lower end of the vertical feed pipe and configured to discharge the homogenous massecuite product from the feed pipe to a centrifuge; and a feed water pipe configured to deliver feed water, surfactants, partially diluted molasses or a combination thereof to the mixing chamber for mixing with the massecuite feed.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: May 13, 2014
    Assignee: The Western States Machine Company
    Inventor: Jeffrey R. Hoffmann
  • Publication number: 20130193058
    Abstract: Disclosed herein is a centrifugal filter. The centrifugal filter includes a shaft, a rotor housing which rotates around the shaft and has filter paper on the inner side surface thereof, a spindle tube which rotates along with the rotor housing around the shaft and discharges the fluid from the shaft into the rotor housing, and a separation film which separates an internal space of the rotor housing into upper and lower portions so that impurities that are removed from the fluid by means of centrifugal force are deposited in the upper portion of the internal space while filtered fluid flows into the lower portion of the internal space. A dispersing means is provided on the spindle tube to make a cross-sectional shape of the fluid discharged from the spindle tube into the rotor housing be an elongated shape so that the fluid is widely dispersed into the rotor housing.
    Type: Application
    Filed: July 30, 2010
    Publication date: August 1, 2013
    Applicant: SHIN HEUNG PRECISION CO., LTD.
    Inventors: Yong-Keun Kim, Kun-Soo Kong, Deog-Hee Doh
  • Patent number: 8220177
    Abstract: An embossed screen having raised deflector elements on the internal surface is provided for a centrifugal pellet dryer. The deflector screen is formed as an integral structure, eliminating the need for separate deflector components secured by fastening elements along with the associated risks such as loosening or separation of the strip and contaminate build-up between the strip and the screen. The embossed deflector screen effectively deflects the pellets back toward the rotor where the pellets are reengaged with rotor energy, resulting in increased dryer efficiency and flow rate. The embossed deflector screen also enhances the overall structural strength of the screen, reduces manufacturing costs and prevents pellet entrapment that can lead to contamination in future runs.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: July 17, 2012
    Assignee: Gala Industries, Inc.
    Inventor: David E. Bryan
  • Publication number: 20090236296
    Abstract: The invention relates to an improved centrifuge device for preventing cross-contamination. Said centrifuge device comprises a drive shaft that is provided with a rotational shaft, a drum which is connected to the rotational shaft and encompasses a drum bucket and a drum bottom, a filter which is located inside the drum and surrounds a work space, an annular space embodied between the filter and the drum jacket, a catchment disk located across from the drum bottom to close the work space, and a centrifuge housing surrounding the drum and the filter. Also disclosed are devices for preventing cross-contamination, especially injection devices for injecting a rinsing fluid, a sealing arrangement, and a vertical adjusting device. The invention further relates to a method for operating a centrifuge device.
    Type: Application
    Filed: June 9, 2006
    Publication date: September 24, 2009
    Inventor: Joachim Schmid
  • Patent number: 7527587
    Abstract: A centrifugal separator includes devices for light matter extraction and for heavy matter extraction. Each embodiment provides for a plurality, e.g., two or more stacked or layered chambers, and connected to a central compartment of the chambers is a rotating drive shaft. In the light matter extraction, a central conduit feeds fluid input into the lower chamber. An upper portion of the lower chamber communicates with the lower portion of a mid chamber via a port formed in a plate dividing the chambers. The upper portion of the mid chamber communicates with the lower portion of an upper chamber via a port formed in a plate dividing the chambers. The chambers can be fixably connected to one another. In the heavy matter extraction an initial feed conduit feeds fluid into the upper chamber.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: May 5, 2009
    Inventor: Henry J. Laughlin
  • Patent number: 7208048
    Abstract: A continuous centrifuge (10) has a basket (30) with upper and lower basket portions (43, 44) separated by an intermediate slip portion (45). The lower basket portion (43) has an included angle of 40–50°, to separate “green” molasses from the sugar crystals, while the upper basket portion (44) has an included angle of 50–60°, to separate washed molasses from the sugar crystals. The inner faces of the walls of the basket portions (43, 44) have radial drainage grooves (46), closed at their lower ends and opens at their upper ends, to discharge the molasses.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: April 24, 2007
    Assignee: WDT (Engineers) Pty. Ltd.
    Inventor: Gordon Francis Eastaughffe
  • Patent number: 6971525
    Abstract: A centrifuge with combinations of multiple features is disclosed. In one aspect, a centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a sleeve. The fluid separation wall rotates around the axis of rotation. A receptacle aids in separation of the more dense material from the fluid medium. The receptacle defined in a part by a respective geometry and a respective shape. An opening extends from the void area to the outer surface to transport the more dense material to the containment zone. An excitation apparatus associated with the receptacle creates a vibration within the receptacle. The centrifuge may further include a valve ring including a valve orifice the valve ring having a first position which blocks the more dense material from exiting the receptacle and a second position that allows the more dense material to move into the containment zone.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: December 6, 2005
    Assignee: Phase Inc.
    Inventors: Curtis Kirker, Berkeley F. Fuller
  • Patent number: 6932913
    Abstract: A system and method for vibration in a centrifuge is disclosed. A centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a non-rotating sleeve. The fluid separation wall rotates around the axis of rotation and includes an inner surface and an outer surface with at least one receptacle formed on the inner surface of the fluid separation wall. The receptacle aids in separation of more dense material from the fluid medium by forming a void space between the inner and outer surface. An excitation apparatus associated with the receptacle to create a vibration within the receptacle. A flow path may extend through the wall from the void area to the outer surface to transport more dense material to the containment zone.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: August 23, 2005
    Assignee: Phase Inc.
    Inventors: Curtis Kirker, Berkeley F. Fuller
  • Patent number: 6805805
    Abstract: A system and method for receptacle wall vibration in a centrifuge is disclosed. A centrifuge for removing more dense material from a fluid medium includes a vibratory device associated with the receptacle wall to create a vibratory force.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: October 19, 2004
    Assignee: Phase Inc.
    Inventors: Curtis Kirker, Berkeley F. Fuller
  • Patent number: 6755969
    Abstract: A centrifuge with specific wall and opening shapes for receptacles is disclosed. A centrifuge may include a fluid separation wall aligned substantially parallel to an axis of rotation and include an inner surface, a void area, and an outer surface. The inner surface may be placed in contact with the fluid medium. The inner surface may include at least one receptacle. The receptacle may aid in separation of the more dense particles from the fluid medium. The centrifuge may further include at least one fluid flow path extending through the separation wall from the inner surface to the outer surface. The fluid flow path may transport the more dense particles to the containment zone.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: June 29, 2004
    Assignee: Phase Inc.
    Inventors: Curtis Kirker, Berkeley F. Fuller
  • Patent number: 6739457
    Abstract: A deflector mounted on the internal surface of a cylindrical screen in a centrifugal pellet dryer. The deflector is one or more vertical strips mounted in spaced relation on the interior surface of the screen by bolting to mating mounting strips on the outside of the screen. The deflector strips deflect the pellets moving along the interior surface of the screen. The edge of the deflector strip facing the direction of movement of the circulating pellets is inclined to deflect the pellets back toward the rotor. In another form, the deflector strip has angled flanges with one flange clamped between outwardly extending vertical side edge flanges on the cylindrical screen. The other flange extends at an oblique angle to deflect the circulating pellets back toward the rotor.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: May 25, 2004
    Assignee: Gala Industries, Inc.
    Inventors: Toney Reid Humphries, II, William Douglas Woodson
  • Patent number: 6706180
    Abstract: A system and method for vibration in a centrifuge is disclosed. A centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a non-rotating sleeve. The fluid separation wall rotates around the axis of rotation and includes an inner surface and an outer surface with at least one receptacle formed on the inner surface of the fluid separation wall. The receptacle aids in separation of more dense material from the fluid medium by forming a void space between the inner and outer surface. An excitation apparatus associated with the receptacle to create a vibration within the receptacle. A flow path may extend through the wall from the void area to the outer surface to transport more dense material to the containment zone.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: March 16, 2004
    Assignee: Phase Inc.
    Inventors: Curtis Kirker, Berkeley F. Fuller
  • Patent number: 6632166
    Abstract: A centrifugal separator includes a rotatable separator bowl, a hollow shaft spindle in the bowl along the rotational axis of the bowl, and a variable-drive motor for selectively rotating the bowl at a high separating speed and at a lower scraping speed. A scraper and feed assembly including scraper blades is supported by the shaft spindle within the separator bowl. A feed liquid is supplied to the separator bowl via the scraper and feed assembly at substantially the interior surface of the separator bowl. The scraper assembly rotates with the bowl at the separating speed while centrate is drawn off. While the bowl is operated at the scraping speed, the scraper assembly is prevented from rotating with the bowl and is moved axially with respect to the bowl to scrape accumulated solids from the interior surface of the bowl. Loosened solids exit the centrifuge via a discharge port at the bottom of the bowl.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: October 14, 2003
    Inventor: Robert B. Carr
  • Patent number: 6521120
    Abstract: A continuous centrifuge of the type comprising a perforated basket of generally frusto-conical configuration which is adapted to rotate about a rotational axis and along whose inner peripheral wall a liquids/solids mix is caused to travel, with solids being discharged over the mouth of the rotating basket at its wider end and liquids being collected via the basket perforations. The basket has at least three separating stages of different inclination relative to the basket rotational axis, with the respective residence time over each separating stage being controlled by the basket angle locally to set the angle to suit the local values controlling the flow at that stage.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: February 18, 2003
    Assignee: Thomas Broadbent & Sons Ltd.
    Inventor: Geoffrey Clive Grimwood
  • 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: 6419619
    Abstract: A continuous procedure for the separation of substances in three phases: liquid/liquid/nonsoluble solids, preferably to separate the organic contained in wastes from solvent extraction processes. The procedure is made up of a first stage of radial feeding of wastes coming from an axial section of a differential rotary field; wherein said differential rotary field is, made up of rotary means of solid dragging and of perimetral rotary means, which rotate in one and the same direction and with different angular speeds according to a spin axis which is substantially horizontal. A second stage consisting in a first radial adjustment of the separation zone of the liquid phases, wherein said first adjustment is carried out with annular means of radial adjustment, which are static with respect to said perimetral rotary means, acting as an overflow lip to allow the pass of the predominantly light liquid phase.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: July 16, 2002
    Inventor: Carlos R. Garrido
  • Publication number: 20020016243
    Abstract: A centrifugal separator is provided which maximizes solids recovery yield and separated solids dryness with minimal user intervention. The centrifugal separator includes a rotatable separator bowl, which is selectively rotatable and supported by a hollow shaft spindle. A scraper and feed assembly including a plurality of scraper blades is supported by the shaft spindle within the separator bowl. A feed liquid is supplied to the separator bowl from the scraper blades at substantially the interior surface of the separator bowl so that the feed liquid is gradually accelerated upon entering the separator bowl. High speed operation of the centrifugal separator is performed to generate separation forces as high as 30,000 g's at the interior surface of the separator bowl. This allows the feed liquid to be safely and effectively separated at lower stress levels within the separator bowl.
    Type: Application
    Filed: June 29, 2001
    Publication date: February 7, 2002
    Inventor: Robert B. Carr
  • Patent number: 6312610
    Abstract: A method for segregating and transporting heavy particles thrown by centrifugal force from a flowing, spinning column of liquid or gas, whereby an outer cylinder whose inner walls present or face the center core with horizontal, circular bands of pyramidal or conical shaped voids, which bands can be vertically stacked to surround a device of any length, and the voids of which present to the heavy particles being thrown from the fluid a receiving surface consisting entirely of outward sloping surfaces, all of which sloped-surface voids accept, accumulate and gravitationally guide said heavy particles towards exit orifices or nozzles, which nozzles penetrate the outer cylinder and together with the sloped voids, permit the continuous, non-mechanically assisted accumulation and ejection of said heavy particles along the entirety of a centrifugal device of any length and thus for any desired duration (or residence time) of fluid flow.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: November 6, 2001
    Assignee: Phase Inc.
    Inventors: Curtis Kirker, Berkeley F. Fuller
  • Patent number: 6267899
    Abstract: Centrifugation separations apparatus including centrifugation means having an inlet, a liquids discharge and a solids discharge, a deflector operatively associated with the solids discharge, wherein the solids discharge is adapted to operatively discharge solids being discharged from the centrifugation means at a trajectory and the deflector is adapted to interrupt the trajectory to decelerate and change the direction of travel of the solids, or wherein the deflector is operatively associated with the solids discharge and cooperable with solids being discharged from the solids discharge whereby buildup of solids on the deflector is substantially prevented, or wherein the solids discharge includes a lip configuration which causes the trajectories of the discharging crystals to be relatively independent of their size and/or their residual syrup/moisture content, or including support means, such as a spider like construction having one or more webs substantially parallel to the angular motion of the solids being
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: July 31, 2001
    Assignee: STG-FCB Holdings PTY Ltd.
    Inventors: Christopher Roy Greig, Peter James Tait, Russell Kirk
  • Patent number: 6267250
    Abstract: An improved screen basket for use with a centrifuge includes two adjoining screen sections. The first screen section is formed from a wear resistant material and is located proximate to the point at which slurry is introduced into the basket. The length of the first screen section is chosen so that the majority of potential wear caused by the abrasive slurry occurs within the first section of the basket. The second screen section is preferably formed from less expensive materials, such as steel wedge wire. The second screen section smoothly joins the first screen section and provides for further dewatering or separation of the accelerated slurry so that a dry cake is produced by the centrifuge.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: July 31, 2001
    Assignee: Baker Hughes, Incorporated
    Inventors: Wallace Woon Fong Leung, Nicholas R. Frohlich, Jr.
  • Patent number: 6261417
    Abstract: A strainer with a screen at its outer periphery is rotatably supported on a casing. A hollow pipe with paddles on an outer periphery of the pipe is fitted in the strainer. The hollow pipe is rotated at a rotating velocity different from that of the strainer. Slurry introduced into the hollow pipe is discharged through slurry outlets on the hollow pipe into inside of the strainer. Then, the slurry is hydrated by the screen under centrifugal action and is moved by the paddles toward a slurry outlet.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: July 17, 2001
    Assignees: Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Ishikawajima Sangyo Kikai Kabushiki Kaisha
    Inventor: Naoyuki Iwashige
  • Patent number: 6230899
    Abstract: A classification system utilizing a cone which is rotated at a specified speed is provided. A stream including a solvent is introduced into the classification, and the stream impacts against the cone and flows along the inside face of the cone. The side of the cone is sufficiently long that the conic face filters the introduced flow, thereby removing substantial portions of the solvent and leaving the heavier or classified parts. The discharge from the cone is thus segregated liquids and solids, and the solid stream is a flow of classified particles and a portion of the solvent. The solvent portion is sufficient in volume to conduct the classified particles as a heavy or thick slurry out of the system. There is an interplay between the length of the cone, i.e. the length along which the introduced slurry must flow, also, the cone angle, and the pores through the cone wall.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: May 15, 2001
    Assignee: Hutchison-Hayes International, Inc.
    Inventor: Gary L. Hensley
  • Patent number: 6139685
    Abstract: The present invention relates to a method for treating a pulp suspension in which the suspension is rotated in a rotationally symmetrical, rapidly rotating and permeable screen basket so that the suspension is subjected to the influence of a centrifugal force and dewatered at the same time as the suspension is conveyed by a rotating screw along the inner wall of the screen basket. The invention is characterized in that the suspension is caused to rotate by means which are arranged at the entrance to the screen basket, and in that the outer edges of the said screw bear against or are immediately adjacent to the screen basket and rotate at a higher speed than does the screen basket so that the screw scrapes the inner wall of the screen basket.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: October 31, 2000
    Assignee: Kvaerner Pulping AB
    Inventor: Kuniaki Saito
  • Patent number: 6058899
    Abstract: A device for separating impurities from the lubricating oil of an internal combustion engine, in which the device (1) has at least one filter insert (2), a centrifuge (3) operable by the flow of lubricating oil, and at least one discharge channel (5) for cleaned oil, in which the filter insert (2) and the centrifuge operable by the flow of oil are in separate housings linked by at least one communicating oil channel (6).
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: May 9, 2000
    Assignee: Filterwerk Mann & Hummel GmbH
    Inventor: Martin Schetter
  • Patent number: 6030532
    Abstract: This centrifugal apparatus comprises a primary frusto-conical filter screen rotating about a vertical axis, which is closed at its smaller diameter end and which is surrounded at its larger diameter upper end by a flat horizontal imperforate ring. A secondary cylindrical filter screen is fixed to and upstands from the periphery of the flat imperforate ring. The solid-liquid mixture is fed to the bottom of the primary filter screen and moves up under centrifugal force, the liquid being filtered and discharged into a surrounding casing. The solids move onto the ring and the liquid is further filtered through the secondary filter screen which retains the solids, being cylindrical. After the desired humidity content of the solids is reached, a scraper is lowered onto the ring to scrape the surface of the same and also the inner surface of the cylindrical secondary filter screen to remove the solids.
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: February 29, 2000
    Assignee: 9053-5998 Quebec Inc.
    Inventor: Jean-Pierre Racine
  • Patent number: 5942170
    Abstract: A continuous method of and system for fabricating thermoset polymer pellets wherein thermosetting polymeric resin material flows axially in a temperature controlled, mixer-extruder barrel while maintaining the material between a melt temperature and a higher thermosetting reaction temperature, and extrudes from the barrel at an extrusion temperature between the melt and reaction temperatures. The extruded material is formed into generally spheroidal pellets which are cooled in a transporting coolant liquid stream and charged to the interior of an open ended, centrifuge basket having a porous circumferential wall and an interior annular pusher plate. The wall is rotated to demoisterize the pellets by centrifugally removing liquid coolant and while reciprocating the pusher plate and basket relatively to displace the pellets axially along and off the basket wall. Pellets are taken from the basket wall without substantially fracturing them and forming an undue percentage of fines.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: August 24, 1999
    Assignee: B&P Process Equipment and Systems, L.L.C.
    Inventor: Thomas A. Peitz
  • Patent number: 5720879
    Abstract: In a horizontal centrifugal apparatus for separating wetting material carried on chips, such apparatus includes a conically shaped bowl carrying vanes distributed about its inner face with the midpoint of the length of said vane lying on a radius from the horizontal axis of bowl rotation such that the vane leading ends and trailing ends are about fifteen degrees of the radius at the midpoint of such vanes to impose an impediment to the rate of erosion on the vanes.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: February 24, 1998
    Assignee: Elgin National Industries, Inc.
    Inventor: Dewey M. Cope
  • Patent number: 5720880
    Abstract: In a continuous sugar centrifugal, an imperforate thin, open ended, truncated cone, of high strength corrosion-resistant material is placed on the working screen within the centrifugal basket. The cone extends part way up the working screen and protects the working screen from damage from high impact particles being released from an accelerator bell.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: February 24, 1998
    Assignee: California Pellet Mill Company
    Inventors: Ted D. Milner, Verne A. Hubalek
  • Patent number: 5693233
    Abstract: The present invention provides an analytical rotor which holds a fluid in a chamber, typically to allow mixing with a reagent, and transfers the fluid to a receiving chamber in the rotor. The rotor comprises a holding chamber having an single exit duct and a receiving chamber connected to the holding chamber through the exit duct. The exit duct prevents flow at a first rotational speed and allows flow at a second, higher rotational speed. The exit duct may include a capillary passage in which capillary forces prevent flow until the rotational speed is increased. Alternatively, the exit duct may include a siphon.
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: December 2, 1997
    Assignee: Abaxis
    Inventor: Carol T. Schembri
  • 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: 5635065
    Abstract: A centrifuge for separating liquids and solids from various materials, including a rotatably driven receiving drum with a raisable and lowerable lift bottom arranged in a liquid-tight basin, and raisable and lowerable material guide surfaces arranged to be raised or lowered independently of the lift bottom.
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: June 3, 1997
    Inventor: Thomas Spyra
  • Patent number: 5616245
    Abstract: A separator includes a housing, a basket rotatably mounted in the housing and a movable weir member. The basket has an upstream end portion, a downstream end portion and an intermediate tubular portion that includes or forms a screen deck. The weir member is movable between a first position where a portion of the weir member extends radially inward relative to the inner surface of the downstream open end portion and a second position spaced from the first position. In this manner, the weir member forms a movable dam adjacent the downstream end portion of the basket. In operation, feed material is fed into the basket as the basket is rotated. The heavy fractions of the material pass transversely through the basket (i.e., the tubular portion that forms a screen deck) and report to a first outlet from which the heavy fractions are collected.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: April 1, 1997
    Assignee: HJS Clem AG
    Inventor: Michael C. Albrecht
  • Patent number: 5587073
    Abstract: An interior wedge wire drum screen is mounted wholly within an exterior drum screen of narrower wedge wire spacing, and both are mounted to a frame and caused to rotate about a common central axis. One end of the outer drum is open and the other is closed by a disc-shaped drum head. The inner drum has an open end which is spaced inward of the open end of the outer drum. The waste water is presented to the surface of the inner drum screen by a waste water infeed which employs a vertical column. The column extends upwardly of an inlet and has a gradually increasing cross-section for reducing the flow of velocity of the waste water. A horizontal trough extends along the axis defined by the drums and communicates between the top of the column and a tray. The edges of the tray terminate in weirs which are parallel to the sides of the inner drum. Water flows in a smooth sheet over a weir to impact the sides of the inner screen with low velocity.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 24, 1996
    Inventor: David R. Zittel
  • Patent number: 5558770
    Abstract: A cone frustum is provided for a centrifugal separator to shield the area of the separator's screen at the top of the flight assembly from the initial impact of the material which is introduced into the separator. The cone frustum is spaced above the flight assembly and below the inlet to shield the portion of the screen that is at the top of the flight assembly. The cone frustum is spaced radially inwardly from the screen and outwardly from the outlet. The cone frustum shields the part of the screen which wears most quickly to extend the life of the separator's screen assembly. The cone frustum is partially perforated to allow for initial dewatering of the material introduced into the separator. The slope of the cone frustum is equal to or less than the slope of the screen of the separator.
    Type: Grant
    Filed: July 3, 1995
    Date of Patent: September 24, 1996
    Assignee: Elgin National Industries, Inc.
    Inventors: Dewey M. Cope, Thomas J. Magrecki
  • Patent number: 5518614
    Abstract: An interior wedge wire drum screen is mounted wholly within an exterior drum screen of narrower wedge wire spacing, and both are mounted to a frame and caused to rotate about a common central axis. One end of the outer drum is open and the other is closed by a disc-shaped drum head. The inner drum has an open end which is spaced inward of the open end of the outer drum. The waste water is presented to the surface of the inner drum screen by a waste water infeed which employs a vertical column. The column extends upwardly of an inlet and has a gradually increasing cross-section for reducing the flow of velocity of the waste water. A horizontal trough extends along the axis defined by the drums and communicates between the top of the column and a tray. The edges of the tray terminate in weirs which are parallel to the sides of the inner drum. Water flows in a smooth sheet over a weir to impact the sides of the inner screen with low velocity.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 21, 1996
    Assignee: Lyco Manufacturing, Inc.
    Inventor: David R. Zittel
  • Patent number: 5472603
    Abstract: The present invention provides an analytical rotor which holds a fluid in a chamber, typically to allow mixing with a reagent, and transfers the fluid to a receiving chamber in the rotor. The rotor comprises a holding chamber having an single exit duct and a receiving chamber connected to the holding chamber through the exit duct. The exit duct prevents flow at a first rotational speed and allows flow at a second, higher rotational speed. The exit duct may include a capillary passage in which capillary forces prevent flow until the rotational speed is increased. Alternatively, the exit duct may include a siphon.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: December 5, 1995
    Assignee: Abaxis, Inc.
    Inventor: Carol T. Schembri
  • 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: 5433849
    Abstract: An interior wedge wire drum screen is mounted wholly within an exterior drum screen of narrower wedge wire spacing, and both are mounted to a frame and caused to rotate about a common central axis. One end of the outer drum is open and the other is closed by a disc-shaped drum head. The inner drum has an open end which is spaced inward of the open end of the outer drum. The waste water is presented to the surface of the inner drum screen by a waste water infeed which employs a vertical column. The column extends upwardly of an inlet and has a gradually increasing cross-section for reducing the flow of velocity of the waste water. A horizontal trough extends along the axis defined by the drums and communicates between the top of the column and a tray. The edges of the tray terminate in weirs which are parallel to the sides of the inner drum. Water flows in a smooth sheet over a weir to impact the sides of the inner screen with low velocity.
    Type: Grant
    Filed: September 15, 1993
    Date of Patent: July 18, 1995
    Assignee: Lyco Manufacturing, Inc.
    Inventor: David R. Zittel
  • Patent number: 5401423
    Abstract: A feed accelerator system for use in a centrifuge, the system comprising an accelerator rotatably mounted substantially concentrically within the centrifuge and including a plurality of disc members concentrically and proximately spaced having a first disc and a second disc, each disc having an inside surface and an outer edge defining a disc diameter. The second disc includes a target surface having no sharp bends or junctions. The first disc includes a disc opening for receiving a discharge opening of a feed pipe. A plurality of disc vanes are disposed between the first and second discs so as to form a plurality of feed channels. The vanes generally extend from a radius equal to or larger than that of the disc opening and of the target surface, and terminate at a radius on the inside surfaces of the first and second discs at a distance from the outer edge of at least one of the first and second discs so as to form a disc smoothener on at least one of the inside surfaces of the first and second discs.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: March 28, 1995
    Assignee: Baker Hughes Incorporated
    Inventors: Woon F. Leung, Ascher H. Shapiro
  • Patent number: 5372571
    Abstract: A centrifugal separator of the type comprising a bowl having a base and a peripheral wall surrounding a vertical axis about which the bowl rotates and a jacket having a base plate under the base of the bowl and a sleeve surrounding the peripheral wall includes a central bottom discharge for the concentrate. The bowl is mounted on the shaft with a hub connecting the shaft to the base plate of the jacket. Water is supplied through the shaft and into the area of the base of the bowl. Tubular discharge ducts extend from holes in the base plate across the space under the bowl to the base plate of the jacket. These remain open during processing of feed materials supplied to the bowl through a vertical tube feeding onto a base plate carried by the bowl above the tubular ducts, and allow the concentrate washed down from the wall of the bowl to discharge when the feed and the centrifugal action of the bowl are halted.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: December 13, 1994
    Assignee: Benjamin V. Knelson
    Inventors: Benjamin V. Knelson, Andre Cauchon
  • Patent number: 5256289
    Abstract: An improved vertical, centrifugal separator (100) includes a drive mechanism (142) to which is connected both a flight assembly (138) and a screen assembly (166). An inlet assembly (124) is positioned above the flight and screen assemblies for material (M) to be separated to be fed into the separator. This material is captured between the flight and screen assemblies and falls downwardly therebetween as separation occurs A pocket assembly (144) integral with the screen assembly is positioned between a discharge port of the inlet assembly and the upper end of the flight assembly. The pocket assembly creates a "basket" for catching material introduced into the separator through the inlet assembly, and replaces the upper portion of the screen assembly which previously was used to catch this material. The screen assembly includes a rotor (182) having a plurality of spokes (196) defining an outlet for separated solid material.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: October 26, 1993
    Assignee: Centrifugal & Mechanical Industries, Inc.
    Inventors: Dewey M. Cope, Harry E. Derton
  • Patent number: 5227057
    Abstract: The present invention is a centrifuge device which separates chips or shreds of containers from whatever liquid residue remains within these containers. Though this technology is suitable for a number of applications, a primary objective is the separation of the recyclable plastic of a motor oil container from the remaining re-usable motor oil within the container after the container has ostensibly been emptied. It is an objective to accomplish this in an economically advantageous manner which uses neither a solvent nor a wash process, and which reclaims the oil in a suitable form for reprocessing. In its preferred embodiment, the present invention may be utilized as a compact, free-standing size reduction and reclaiming device at the location where the container is used, such as in automotive service stations, and the like. In a second embodiment, production units may be used in plastic reclaiming plants where large quantities of a given plastic container are being centrally processed.
    Type: Grant
    Filed: June 10, 1992
    Date of Patent: July 13, 1993
    Inventor: Lynn C. Lundquist