Including Housing For Bowl Patents (Class 494/60)
  • Patent number: 9089852
    Abstract: A fully jacketed screw centrifuge includes a rotatable drum having a horizontally oriented rotational axis, a rotatable screw arranged in the drum, and at least one discharge opening oriented at an angle to the rotational axis of the fully jacketed screw centrifuge for discharging solid from the drum in the jacket of the drum. A collecting chamber for solid, which surrounds the drum that rotates during operation in some sections and which does not rotate during operation, is associated with the at least one discharge opening. At least one hose segment not circumferentially closed in the cross-section is arranged in the collecting chamber. The hose segment is composed of an elastomeric material, which oscillates when impinged by discharged solids to reduce accumulation of the discharged solids on the hose segment.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: July 28, 2015
    Assignee: GEA Mechanical Equipment GmbH
    Inventor: Stefan Terholsen
  • Patent number: 9050609
    Abstract: A centrifuge apparatus is provided that operates at certain predetermined parameters depending upon a product to be separated and is useable with a plurality of rotor assemblies. For example, a first rotor assembly of said plurality of rotor assemblies includes a first core having a first core configuration which is contained within a rotor housing of the first rotor assembly to define a first volume capacity such that the product passing through the first rotor assembly having the first volume capacity during rotation of the first rotor assembly in the centrifuge apparatus achieves a first particle separation of the product.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: June 9, 2015
    Assignee: Alfa Wassermann, Inc.
    Inventors: Sandra Patricia Merino, Steven J. Dalessio, Robin Roy Louis Rudy Otten
  • Patent number: 9027471
    Abstract: The current invention discloses a food-drying device that includes a container, a drying assembly having a plurality of bores, and a drive mechanism. The drying assembly is disposed in the container and is capable of being rotated relative to the container. The drive mechanism rotates the drying assembly relative to the container. The drive mechanism includes a reciprocating handle movable between a first position and a second position along a linear direction, and a conversion mechanism for converting reciprocating movement of the reciprocating handle to rotary motion of the drying assembly from force supplied by a user to actuate the reciprocating handle moving from the first position to the second position, and from force supplied by the user to actuate the reciprocating handle moving from the second position to the first position.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: May 12, 2015
    Assignee: Golden Choice Products Ltd.
    Inventors: Kwan Kit Chan, Chung Ming Chan
  • Publication number: 20150024922
    Abstract: In one aspect, a disposable centrifuge includes a container including an interior compartment for receiving the liquid and solids. The container is capable of rotating to urge the solids toward the periphery of the interior compartment. A fixed extraction conduit may be provided for extracting at least a portion of the solids from adjacent the periphery of the interior compartment of the container. A motive device may also be provided for forming a non-contact coupling with the container, which may rotate and/or levitate the container. A relatively low, continuous flow rate (about 250 ml/min to about 500 ml/min) may also be utilized. Related methods are also disclosed.
    Type: Application
    Filed: February 2, 2013
    Publication date: January 22, 2015
    Inventors: Jose Antonio Castillo Gonzalez, Jean-Christophe Drugmand, Vishwas Pethe, Alexandre Terentiev
  • Patent number: 8936766
    Abstract: A lipoaspirate collection device to aid in the collection and processing of human tissue and fluid obtained during liposuction for use in point-of-care cell therapy. The collection device includes a collection body and a collection cap. The collection cap may have a fluid port, a lipoaspirate port, a vacuum port, and a relief valve. Within the central cavity of the collection device, a cone shaped may be positioned such that the apex of the cone is positioned underneath the lipoaspirate inlet through which the lipoaspirate fluid and tissue are introduced.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: January 20, 2015
    Assignee: SpineSmith Partners, L.P.
    Inventors: Ted Sand, Kevin Dunworth, Greg Forman
  • Publication number: 20150018192
    Abstract: A particle capture system that can be used in the context of a lab-on-a-chip platform for particle- and cell-based assays is described. The system comprises a capture chamber comprising a plurality of capture sites, the capture sites defining a capture area configured to receive individual particles travelling within the capture chamber. By rotating the chamber, the individual particles are biased towards the capture sites where they may be captured.
    Type: Application
    Filed: July 18, 2014
    Publication date: January 15, 2015
    Inventors: Jens Ducree, Robert Burger
  • Publication number: 20140349829
    Abstract: A rotor body (3) for a laboratory centrifuge includes a rotor hub (14) which is inserted in a central opening and on the outside of which, at least one helically curve continuous groove (27) runs so as to form a transport facility for cooling air. The cooling air is effective in the direction of the axis (2) of the rotor hub (14) between the upper side (23) and the underside (22) of the rotor (1). In this manner, a cooling airstream which runs axially through the rotor (1) and undergoes direct thermal exchange with the rotor (1) and the mixtures to be treated in the laboratory centrifuge can be realized. No additional installation volume is required for this measure and equalization of the temperature of the rotor and the housing accommodating the rotor can be achieved.
    Type: Application
    Filed: July 24, 2013
    Publication date: November 27, 2014
    Applicant: SIGMA LABORZENTRIFUGEN GMBH
    Inventors: Eckhard Todteberg, Matthias Bittner
  • Publication number: 20140305823
    Abstract: A blood sampling transfer device that includes a lancing tape having a flow channel and a transfer cartridge removably connected to the lancing tape is disclosed. The blood sampling transfer device provides a closed system that reduces the exposure of a blood sample to both skin and environment and provides fast mixing of a blood sample with a sample stabilizer.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 16, 2014
    Inventors: Craig A. Gelfand, Gary D. Fletcher, Bradley M. Wilkinson
  • Patent number: 8840838
    Abstract: Systems and methods are provided for sample processing. A device may be provided, capable of receiving the sample, and performing one or more of a sample preparation, sample assay, and detection step. The device may be capable of performing multiple assays. The device may comprise one or more modules that may be capable of performing one or more of a sample preparation, sample assay, and detection step. The device may be capable of performing the steps using a small volume of sample.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: September 23, 2014
    Assignee: Theranos, Inc.
    Inventors: Elizabeth Holmes, John Kent Frankovich
  • Publication number: 20140256529
    Abstract: A discontinuous centrifuge has a rotatable centrifuge drum with a casing. The cylindrical centrifuge casing is provided with holes to discharge a liquid produced during the centrifugation. The holes have a cross-section with an elliptical shape. The cross-section of the holes is widened from the inside to the outside. The hole wall is continuous in this case, The diameter of the cross-sections of the holes parallel to the drum axis on the inside of the casing is equal to the diameter of the cross-sections of the holes parallel to the drum axis on the outside of the holes. The diameter of the cross-sections of the holes in the peripheral direction, on the other hand, on the inside of the casing is smaller than the diameter of the cross-sections of the holes in the peripheral direction on the outside of the casing. The area of the elliptical holes may be additionally also divided by webs.
    Type: Application
    Filed: November 23, 2012
    Publication date: September 11, 2014
    Applicant: BMA Braunschwegische Maschinenbauanstalt AG
    Inventors: Hans-Heinrich Westendarp, Dirk Spangenberg
  • Publication number: 20140230381
    Abstract: An internal combustion engine and centrifugal separator assembly separates contaminants from crankcase gas. A crankcase is connected to the centrifugal separator including a centrifugal rotor. A rotor housing delimits a separation space in which the centrifugal rotor is arranged to rotate. A gas inlet conducts crankcase gas to a central part of the centrifugal rotor. A gas outlet communicates with a part of the separation space surrounding the centrifugal rotor and to conduct cleaned crankcase gas out of the separation space. A particle outlet communicates with the part of the separation space. The particle outlet is connected to a collector for the separated particles. The collector is configured to communicate with the gas inlet via a connection to provide a pressure difference between the particle outlet and the collector. The separated particles are drawn out of the particle outlet and into the collector during operation of the centrifugal separator.
    Type: Application
    Filed: October 23, 2012
    Publication date: August 21, 2014
    Inventor: Olle Törnblom
  • Patent number: 8801586
    Abstract: Disclosed is a system to separate, enrich, and/or purify a cellular population from a biological tissue, such as a tissue sample. For example, an adipose tissue sample can be acquired and disrupted. The disrupted tissue sample can then be separated and purified. The separated components can include multipotent, pluripotent, or other cell populations.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: August 12, 2014
    Assignee: Biomet Biologics, LLC
    Inventors: Randel Dorian, Michael D. Leach, Richard W. Storrs, Jason Chavarria
  • Patent number: 8734310
    Abstract: The present invention relates to a rotor chamber for a centrifuge, in particular an air-cooled laboratory centrifuge, having a chamber wall, comprising an inner side facing toward the chamber interior, the chamber interior being implemented to receive a centrifuge rotor, and an outer side facing away from the chamber interior, and having a sound barrier which is implemented to reduce the sound emitted from the rotor chamber, which comprises a multilayer damping lining. The first layer comprises a material having essentially sound-absorbing properties relative to the second laver, and the second layer comprises a material having essentially sound-reflecting properties relative to the first layer. The present invention also relates to a centrifuge having such a rotor chamber, and methods for reducing the sound emanating from the rotor chamber of a centrifuge, in particular an air-cooled laboratory centrifuge.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: May 27, 2014
    Assignee: Thermo Electron LED GmbH
    Inventor: Hans Janzen
  • Publication number: 20140135197
    Abstract: A housing for an automated centrifuge with side and top access is disclosed. The housing includes an inner housing (104) for enclosing at least one labware nest (108) of the automated centrifuge, the inner housing having a top and a substantially cylindrical body, wherein the inner housing includes an opening through both a portion of the top and a portion of the body; and a door (114) configured to move between an open position in which the door exposes the opening and a closed position in which the door blocks the opening.
    Type: Application
    Filed: June 29, 2012
    Publication date: May 15, 2014
    Applicant: HiRes Biosolutions
    Inventors: Michael J. Nichols, Louis J. Guarracina
  • 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
  • Patent number: 8702577
    Abstract: A centrifuge comprising a zonal rotor, a centrifuge chamber having a side wall and a bottom wall to contain the zonal rotor, an upper shield to cover the top of the centrifuge chamber and enclose the zonal rotor, and an annulus in the centrifuge chamber that is laterally spaced apart from the zonal rotor. The annulus has a channel with a base and a lip, where the channel has an open end facing the direction of the upper shield to collect liquid sample leaked during loading or unloading the zonal rotor.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: April 22, 2014
    Assignee: Beckman Coulter, Inc.
    Inventor: Horst G. Krischer
  • Patent number: 8636634
    Abstract: Disclosed are a reaction and separation processor and a process for producing biodiesel. The processor is comprised of a stationary casing and a rotor located internal to the casing, with a gap formed between the rotor and casing. A fluid inlet port is located at the upper end of the casing for delivering fluid, which is used to produce the biodiesel, into the reaction zone of the processor, in which the reaction zone is defined as a gap between an upper portion of the rotor and casing. Surface irregularities for inducing fluid turbulence in the reaction zone are located on an inner surface of the casing, an outer surface of the rotor, or both. A rotor inlet port is located at a lower end of the rotor for directing fluid from the reaction zone into the separation zone, which is located within the rotor.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: January 28, 2014
    Assignee: RASP Technologies, LLC
    Inventors: Mark Allen, Robert Miller
  • Publication number: 20130345039
    Abstract: Described herein is a centrifuge separator for separating a mixture of an immiscible solid and liquid, particularly where the solid has a lower specific gravity (i.e. is lighter) than the liquid. Methods of use and a rotary seal are also described herein.
    Type: Application
    Filed: January 27, 2012
    Publication date: December 26, 2013
    Applicant: SCOTT SEPARATION TECHNOLOGY LIMITED
    Inventor: Ross Allan Ward
  • Patent number: 8574143
    Abstract: A horizontal solid-bowl centrifuge with cleaning-in-place jet nozzles for cleaning the bowl in a manner complying with good manufacturing procedure is provided. The bowl is cleaned by a defined arrangement of the cleaning jet nozzles, as the bowl rotates at a speed insufficient to produce a centrifugal force equal to gravitational acceleration, where gravitational acceleration is equal to 1.0 g. The cleaning liquids are then removed after the bowl stops rotating at the lowest point of the bowl.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: November 5, 2013
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Achim Astheimer, Peter Kraemer, Wolfgang Sittig, Bernhard Unger, Frank Zwilling
  • Patent number: 8562502
    Abstract: A centrifugal separator includes: a rotor configured to hold a sample to be separated; a driving device configured to rotate the rotor and including a driving shaft; a chamber configured to contain the rotor and including a through hole through which the driving shaft is passed; a seal member configured to fitted over the through hole of the chamber and the driving shaft; a drain hole configured to discharge liquid in the chamber to an exterior; and an undulated part configured to guide a flow of the liquid and is provided on an upper surface of the seal member.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: October 22, 2013
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Ryou Murayama, Shoji Kusumoto, Yuki Shimizu
  • Publication number: 20130274084
    Abstract: A centrifugal separator comprises a bowl rotating in use around an axis of rotation. The axis of rotation extends in a longitudinal direction, and a radial direction extends perpendicular to the longitudinal direction. A base plate provided at one longitudinal end of the bowl, said base plate having an internal and external side, an outlet opening being provided in the base plate. A casing is projecting at the outlet opening on the external side of said base plate, said casing comprising a casing side, a normal to said casing side extending at an acute angle relative to a circumferential direction of the bowl at said casing and a discharge opening is provided in said casing side. The discharge opening is radially outwardly limited by a weir with an overflow edge and said discharge opening extending radially inwardly to a position above a highest intended level of liquid in the bowl.
    Type: Application
    Filed: June 13, 2013
    Publication date: October 17, 2013
    Inventors: Bent Madsen, Klaus Dircks
  • Patent number: 8529425
    Abstract: A horizontal centrifugal separator is configured such that a groove formed along a joint surface between an upper casing and a lower casing constituting the casing is outwardly bent near an opening of the casing, and that an elastic sealing member is disposed in the groove and an end portion thereof abuts against a sealing surface provided on a ring member which is provided so as to surround the outer circumference of the opening of the casing and is pressed against the casing. In this case, surface sealing is constituted by the end portion of the elastic sealing member and the sealing surface of the ring member. In this manner, the hermeticity can be improved without using a sealing member having a complicated structure.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: September 10, 2013
    Assignee: Tomoe Engineering Co., Ltd.
    Inventors: Atsushi Onodera, Keishiro Yamazaki
  • Publication number: 20130210600
    Abstract: A centrifuge vessel is configured to have at least two chambers therein separated by a divider, and with a spillway around a lip at an end of the divider to join the chambers. After centrifugation differing density phases of an original sample remain on opposite sides of the divider. Separate extraction ports are provided for removal of differing density phases of the original sample from opposite sides of the divider. A method of use of the centrifuge vessel includes centrifugation and extraction at differing orientations of the vessel for convenient and reliable extraction of differing density fractions from the original sample.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 15, 2013
    Applicant: STEM CELL PARTNERS, LLC
    Inventor: Stem Cell Partners, LLC
  • Publication number: 20130178352
    Abstract: A foam molding shell for a centrifuge bowl, a bowl for a centrifuge, a method for producing a thermal insulation encasing the bowl for the centrifuge and to a centrifuge. The foam molding shell is configured as a disposable tool for foam encasing the bowl for the centrifuge with the thermal insulating material. Thus, the production complexity and the production cost of the centrifuge bowl with the thermally insulated bowl for the centrifuge can be significantly reduced.
    Type: Application
    Filed: February 24, 2013
    Publication date: July 11, 2013
    Inventors: Robert Goellnitz, Heinz-Gerhard Koehn, Thomas Nehrdich
  • Publication number: 20130130885
    Abstract: A centrifugal separator comprises a frame, a bearing device and a rotor having a first end and a second end. The rotor is connected to the frame via the bearing device. The rotor comprises a hollow spindle defining a central inner space. The spindle has a first portion adjoining the first end, an intermediate portion and a second portion adjoining the second end. The rotor also comprises a support element provided around the spindle, a separation space and separation discs are provided in the separation space around the first portion and against the support element. A rotor casing delimits the separation space. The support element is provided around the intermediate portion. The bearing device is connected to and provided around the second portion.
    Type: Application
    Filed: March 9, 2011
    Publication date: May 23, 2013
    Applicant: ALFA LAVAL CORPORATE AB
    Inventor: Kjell Klintenstedt
  • Publication number: 20130123090
    Abstract: A centrifugal separator for separating non-gaseous particles from a gas flow having a separator housing enclosing a rotor with a raw gas inlet, a clean gas outlet, and a particle outlet. A circumferential wall encloses the rotor. A raw gas flow is guided axially into the rotor. A clean gas flow is guided out of the rotor and then between the rotor and the circumferential wall to the clean gas outlet. The rotor comprises particle separation elements so that particles separated from the gas flow are centrifuged onto the circumferential wall. The circumferential wall particles are guided to the particle outlet via at least one particle guide trough running diagonal to the rotor axial direction on the interior of the circumferential wall. A radius of each trough as well as the distance between the rotor and the circumferential wall decreases in the direction of the clean gas flow.
    Type: Application
    Filed: July 20, 2011
    Publication date: May 16, 2013
    Inventor: Dirk Hornung
  • Publication number: 20130116104
    Abstract: A centrifuge bucket for centrifuging materials, in particular in laboratory centrifuges. The centrifuge bucket is operable in a very simple manner and facilitates safe and constant closure over the service life of the centrifuge bucket. Thus, the centrifuge bucket handles much better than known centrifuge buckets because real one hand operation without using a second hand is facilitated. Furthermore, the centrifuge bucket can be produced in a simpler and more cost-effective manner while being equally suitable for a given centrifugation power and centrifugation capacity.
    Type: Application
    Filed: May 1, 2012
    Publication date: May 9, 2013
    Inventors: Heinz-Gerhard Koehn, Eckart Kopowski, Sylke Grune, Sandra David, Ulrike Gaebler, Paul Chatzis
  • Patent number: 8402729
    Abstract: A vehicle for harvesting espalier fruit, such as berries or grapes, and for further processing to a must on the vehicle. The vehicle comprises a frame configured to reach over a row of plants to be harvested in an area of a u-shaped recess of the vehicle. Also included are wheels on both sides of the u-shaped recess and arranged on the frame. Further included is a picking device to separate the fruit from a remainder of the plants. A solid-bowl screw-type centrifuge is arranged directly on the vehicle, which solid-bowl screw-type centrifuge separates and clarifies a fruit mash into at least a solids phase and a liquid phase.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: March 26, 2013
    Assignees: Westfalia Separator AG, Ero-Geratebau GmbH, Hochschule Wadenswil
    Inventors: Jochen Hamatschek, Frank Schauz, Peter Schöttler, Hans-Joachim Beyer, Dominik Zielke, Michael Erbach, Tilo Hühn
  • Publication number: 20130043195
    Abstract: A mobile water recovery system and methods of recycling water from slurry produced by pavement grinding machines. The system includes a platform having a plurality of wheels, a slurry storage tank or a slurry settling tank, a centrifuge in flow communication with the slurry storage tank or slurry settling tank, such as a hydraulic centrifuge, a solids storage component, and a cleaned water storage tank in flow communication with the centrifuge. The system may also include an acidifier which may be located within the cleaned water storage tank. The acidifier may bubble engine exhaust through the cleaned water or may dispense a pH adjusting agent into the clean water storage tank.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 21, 2013
    Applicant: O3 INDUSTRIES, LLC
    Inventors: Michael T. O'Konek, Dusten C. O'Konek, JR., Dusten C. O'Konek, SR.
  • Patent number: 8343025
    Abstract: A centrifugal concentrator in which there is a common shaft for the drive motor and concentrator bowl. The cost of bearing assemblies is thereby minimized. The bowl is driven and suspended from above to keep the motor out of the slurry area and maximize the simplicity of the design. A fluidizing fluid is delivered through the common shaft.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: January 1, 2013
    Inventors: Steven A. McAlister, Mark Henry Vinchoff
  • Publication number: 20120277084
    Abstract: A rotor unit for a centrifugal separator, which centrifugal separator comprises a non-rotatable housing wherein the rotor unit is disposed about a central axis of rotation, an inlet for supply of a mixture of components to be separated, at least one outlet for a component separated during operation, whereby the rotor unit, at least parts of which are made of metal, comprises a separating chamber formed inside the rotor unit, an inlet chamber connected to the inlet and the separating chamber, is formed radially within said separating chamber and is usually shielded from the separating chamber, at least one outlet connected to the separating chamber, a plurality of separating discs disposed at a distance axially from one another in said separating chamber coaxially with the axis of rotation, at least a number of the metal parts of said rotor unit are undetachably joined together to form a composite assembly.
    Type: Application
    Filed: July 12, 2012
    Publication date: November 1, 2012
    Applicant: ALFA LAVAL CORPORATE AB
    Inventor: Kjell Klintenstedt
  • Publication number: 20120214659
    Abstract: Provided is a regenerative cell extraction system. The regenerative cell extraction system includes: a regenerative cell separation unit which separates fat tissue; and a regenerative cell extraction unit. The regenerative cell separation unit includes: a sub container which is rotated by a torque applied from an external source and includes a space in which fat tissue is housed; a hollow main pipe which is inserted into the sub container; and a pump which is connected to the main pipe. In addition, the regenerative cell extraction unit receives a regenerative cell-containing substance, which is obtained after the fat tissue is centrifuged by the regenerative cell separation unit, from the regenerative cell separation unit, and extracts regenerative cells from the substance by centrifuging the substance.
    Type: Application
    Filed: October 25, 2010
    Publication date: August 23, 2012
    Inventors: Byung-Rok Do, Jung-Kyu Lee, Ji-Hyang Kim, Sung-Guu Kang, Seung-Hoon Pak, Myung-Jin Kim, Kyu-Chul Shin, Chul-Geun Kim, Yung-Dal Yoon
  • Publication number: 20120202673
    Abstract: A rotor is provided for use in a centrifuge system configured to spin the rotor for separating complex fluids. The rotor includes a housing configured to be secured by the centrifuge system and several chambers formed in the housing. Each chamber includes a first chamber portion having a port formed therein and a second chamber portion in fluid communication with the port of the first chamber portion. The second chamber portion may be disposed generally below the port of the first chamber portion. Other rotor designs and methods for separating complex fluids are further disclosed.
    Type: Application
    Filed: February 1, 2012
    Publication date: August 9, 2012
    Inventors: Matthew K. Runyon, Daniel M. Mueth, Sergio O. Guevara, Haojun Fu
  • Patent number: 8235882
    Abstract: A centrifuge housing has a lid with a hinge with two hinge parts and a horizontal hinge axis. The lid is able to rotate between a closed position, in which the lid's centre of gravity is positioned on one side of a vertical plane through the hinge axis, and a fully opened position, in which the centre of gravity is positioned on the other side of the vertical plane. A longitudinal spring is connected to a connection member for urging it longitudinally. The connection member is connected at a hinge point at a distance from the hinge axis. The spring assists raising the lid initially during opening and closing the lid initially during closing from the fully opened position. The lid has a position of stable equilibrium in an intermediate position between the closed position and a vertical position.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: August 7, 2012
    Assignee: Alfa Laval Corporate AB
    Inventor: Henrik Reiff
  • Publication number: 20120077662
    Abstract: A method and apparatus for continuous removal of submicron sized artificial oxygen carriers (rAOC) and other materials such as cancer cells and bacteria from blood and other liquids. A centrifuge rotor having a curved shape is offset on a spinning rotor base and creates contiguous areas of low to high centrifugal force depending on the distances from the axis of the rotor base. This creates a density gradient field that separates materials of different densities input to the centrifuge that exit via different outputs. A monitor detects any red blood cells (RBC) with the rAOC before they exit the centrifuge. If there are any RBC detected logic circuitry changes the speed of rotation of the rotor, and the flow rate of pumps inputting and removing separated blood and rAOC to and from the centrifuge until there are no RBC in the rAOC exiting the centrifuge.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 29, 2012
    Inventors: Agnes Ostafin, Hiroshi Mizukami
  • Publication number: 20120028782
    Abstract: In a decanter centrifuge a bowl is provided and rotates in use around a horizontal axis of rotation, a base plate provided at one longitudinal end of said bowl, the base plate having an internal side and an external side, an outlet opening provided in said base plate, the outlet opening extending through a first angular interval relative to the axis of rotation, and a wall projecting from the external side of said base plate, wherein the wall extends from the vicinity of the outlet opening towards a rim of the base plate, the wall extending through a second angular interval, the second angular interval being at least 30°, and the wall having in a radial plane perpendicular to the axis of rotation an inclination relative to the radial direction of at least 60°.
    Type: Application
    Filed: December 23, 2009
    Publication date: February 2, 2012
    Applicant: ALFA LAVAL CORPORATE AB
    Inventor: Jon Eiken
  • Patent number: 8096933
    Abstract: A centrifuge with an electric motor (46), composed of a centrifuge outer frame (47), a heavy liquid collecting tank (18), a lower hollow shaft (22), centrifugal units, an upper hollow shaft (38), and a light liquid collecting tank (41). The heavy liquid collecting tank, the lower hollow shaft, the upper hollow shaft, and the light liquid collecting tank are all fixed to the centrifuge outer frame, the centrifugal units are fixed between the upper hollow shaft and the lower hollow shaft, the motor is connected to the upper hollow shaft and drives the upper hollow shaft to rotate, the upper hollow shaft is fixed to two or more centrifugal units connected in series and drives the centrifugal units to rotate, a hollow portion of the upper hollow shaft communicates with the light liquid collecting tank, centrifugal units are fixed to the lower hollow shaft and drive the lower hollow shaft to rotate, the heavy liquid collecting tank is a casing formed between the centrifuge outer frame and the centrifugal units.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: January 17, 2012
    Inventor: Shujiang Song
  • Publication number: 20120010062
    Abstract: A method and apparatus for collecting a maximum amount of platelets for a selected blood separation procedure without collecting excess platelets above those required for a selected platelet product, whether that product was one unit of platelets, two units of platelets (a double platelet), or more. The method and apparatus will continue to adjust the platelet yield target for platelet collection throughout the procedure without operator intervention, unless the selected procedure cannot be completed successfully, and the operator is required to select another allowed procedure.
    Type: Application
    Filed: June 20, 2011
    Publication date: January 12, 2012
    Applicant: CARIDIANBCT, INC.
    Inventors: Christopher FLETCHER, John PITTINGER
  • Publication number: 20120010065
    Abstract: A centrifuge housing has a lid with a hinge with two hinge parts and a horizontal hinge axis. The lid is able to rotate between a closed position, in which the lid's centre of gravity is positioned on one side of a vertical plane through the hinge axis, and a fully opened position, in which the centre of gravity is positioned on the other side of the vertical plane. A longitudinal spring is connected to a connection member for urging it longitudinally. The connection member is connected at a hinge point at a distance from the hinge axis. The spring assists raising the lid initially during opening and closing the lid initially during closing from the fully opened position. The lid has a position of stable equilibrium in an intermediate position between the closed position and a vertical position.
    Type: Application
    Filed: November 17, 2009
    Publication date: January 12, 2012
    Applicant: ALFA LAVAL CORPORATE AB
    Inventor: Henrik Reiff
  • Patent number: 8092362
    Abstract: A separator arrangement includes a separator having a drum with a vertical rotation axis. The drum is placed on a rotatable drive spindle and is surrounded by a shroud. A separating wall separates the separator arrangement into a sanitary area that includes the drum and the shroud and a drive area that includes the drive device. The separator and the drive device are decoupled as a unit, in terms of vibration, by at least one of the separating wall and a foundation attachment. The drive device includes a motor, a coupling, at least one bearing device, and a flange section around the drive spindle underneath a drive cover, and a sealing device. A membrane arrangement is formed in a region of the drive cover and, for vibration purposes, decouples the drive cover from the machine frame in a region around the drive spindle.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: January 10, 2012
    Assignee: Westfalia Separator AG
    Inventors: Werner Kohlstette, Olaf Müller, Thomas Homann
  • Publication number: 20120004089
    Abstract: The lid-section mechanism for rotors comprises a lid, a knob, a knob shaft, a circular plate, a plate spring, and an elastic body. The circular plate is attached to the surface of the lid that faces the knob and has click holes that are formed on a circle. The plate spring is attached to the surface of the knob that faces the circular plate and, if the distance between the knob and the lid is equal to or less than a predetermined value, the plate spring is caught in the click hole. The elastic body pushes the lid against the rotor depending on the distance. Turning the knob when the distance is equal to or less than the predetermined value repeats the cycle in which the plate spring is caught in the click hole and then the plate spring is bent and removed from the click hole.
    Type: Application
    Filed: April 8, 2010
    Publication date: January 5, 2012
    Applicant: Kubota Manufacturing Corporation
    Inventor: Toshiharu Hashimoto
  • Patent number: 8070667
    Abstract: The invention relates to a centrifugation enclosure (1) made of rigid plastic that comprises a member (1b) adapted to engage with the driving organ of a centrifugation machine (M) and a communication member (5) between the enclosure (1) and the outside, made of rigid plastic and comprising un first duct (5a) extending therethrough for supplying said enclosure (1) as well as two ducts (5b, 5c) extending therethrough for discharging the separated components. A holder (3) made of rigid plastic and having a network of channels (4a, 4b, 4c) formed therein connects the ducts (5a, 5b, 5c), respectively, to supply (P1) and reception (P2, P3) tanks, with side sealing members (6) of said channel network (4a, 4b, 4c). The ends of the ducts (5a, 5b, 5c) are adjacent to the respective ends of the channels (4a, 4b, 4c), and the ends of the ducts (5a, 5b, 5c) have surfaces mating with the end surfaces of the respective channels (4a, 4b, 4c), said mating surfaces being connected to one another.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: December 6, 2011
    Inventor: Jean-Denis Rochat
  • Patent number: 8043201
    Abstract: Centrifuges, in particular for a lubricant oil in an internal combustion engine, are provided with a housing which comprises a base, a lid forming the second part of the housing and connectable to the base and a rotor arrangeable in the housing. Each centrifuge is embodied in the form of a modular unit which is assembled with the aid of modular system parts, wherein the modular system comprises different bases, and/or different lids and/or different rotors which can be assembled in the form of different combinations in such a way that different centrifuges are obtained.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: October 25, 2011
    Assignee: Hengst GmbH & Co. KG
    Inventor: Dieter Baumann
  • Publication number: 20110212819
    Abstract: The present invention relates to a lid for closing a centrifuge rotor, characterized by a form-fitting, rotation-actuated closure mechanism which, pre-positioned on the centrifuge rotor, moves automatically into a closed position by virtue of the intrinsic weight of the lid.
    Type: Application
    Filed: May 23, 2006
    Publication date: September 1, 2011
    Inventors: Heinz Gerhard Köhn, Eckhard Kopowski, Andreas Heilmann
  • Patent number: 7938874
    Abstract: A system and method for supplying clean dry gas to gas seals of a compressor. The system uses a rotary separator magnetically coupled to a source of rotational power, along with a gas stream cooling unit configured to condensate liquids out of a wet gas stream before the wet gas stream is supplied to the rotating separator. The system may further include a gas stream pressure booster, a heating unit to heat a dry gas stream generated by the rotary separator, and a controlled recirculation loop configured to continually recirculate the wet gas through the driven rotary separator until a desired amount of condensates are removed from the wet gas stream.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: May 10, 2011
    Assignee: Dresser-Rand Company
    Inventor: Philippe Auber
  • Patent number: 7905360
    Abstract: The invention concerns a separator, wherein the mixture, after passing through the inlet channels of the container body (1), penetrates into the admission chamber (30) of the rotor (2), where blades (35) arranged in star formation and perpendicular to the axis of rotation produce a centrifugal propulsion and, further, compact the components with greater density, thus facilitating extraction thereof. The thus modified mixture passes into the separating chamber (31), where blades (36) arranged in star formation and parallel to the axis of rotation, through their centrifugal force, push the components with greater density outwards; the latter having penetrated into the collecting cells (41) of the grid (34) which is coated on the outside of the separating chamber, through holes (42) exit from the rotor upon reaching the accumulation chamber (13). The fluid medium which, countered by a suitable pressure, cannot penetrate into the accumulation chamber, exit through evacuation channels.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: March 15, 2011
    Assignee: Luigi Pietro Della Casa
    Inventor: Luigi Pietro Della Casa
  • Patent number: 7897054
    Abstract: A flexible, disposable centrifuge bag for receiving and holding a fluid sample, comprising one or more tubes and upper and lower flexible sheets having doughnut shaped configurations. The upper and lower sheets are superimposed and completely sealed together at their outer perimeters to define an outer perimeter of the centrifuge bag. The inner perimeter of the bag defines a central core. The tubes are sandwiched between the upper and lower sheets and extend from the central core of the centrifuge bag. The upper and lower sheets are sealed together at their inner perimeters such that the tubes are sealed between said upper and lower sheets at the inner perimeter. The bag may be used to harvest platelet rich plasma from whole blood in either a batch method or while simultaneously infusing additional aliquots of whole blood into the bag during centrifugation.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: March 1, 2011
    Assignee: Arteriocyte Medical Systems, Inc.
    Inventors: Victor D. Dolecek, David Malcolm
  • Patent number: 7874973
    Abstract: According to an aspect of the present invention, there is provided a centrifuge in which a steam sterilization of a sample flow passage is performed, the centrifuge including: a rotor configured to centrifuging a liquid sample; a drive portion that drives and rotates the rotor; a chamber that accommodates the rotor therein, the chamber having a first and a second penetration holes provided on an upper and a bottom portions thereof, respectively; and a first and a second valves disposed on the first and the second penetration holes, respectively; wherein a cooling gas is introduced through one of the first and the second penetration holes and discharged through the other to cool a periphery of the rotor before or after execution of a centrifuging operation of the liquid sample.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: January 25, 2011
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Katsunori Akatsu, Masaharu Aizawa, Tatsuya Konno
  • Patent number: 7862494
    Abstract: The present invention relates to a centrifuge apparatus. The centrifuge apparatus is operable at certain predetermined parameters depending upon a product to be separated and is useable with a plurality of rotor assemblies. For example, a first rotor assembly of said plurality of rotor assemblies includes a first core having a first core configuration which is contained within a rotor housing of the first rotor assembly to define a first volume capacity such that the product passing through the first rotor assembly having the first volume capacity during rotation of the first rotor assembly in the centrifuge apparatus achieves a first particle separation of the product.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: January 4, 2011
    Assignee: Alfa Wassermann
    Inventors: Sandra Patricia Merino, Steven J. Dalessio, Robin Roy Louis Rudy Otten
  • Patent number: RE44213
    Abstract: The invention concerns a separator, wherein the mixture, after passing through the inlet channels of the container body (1), penetrates into the admission chamber (30) of the rotor (2), where blades (35) arranged in star formation and perpendicular to the axis of rotation produce a centrifugal propulsion and, further, compact the components with greater density, thus facilitating extraction thereof. The thus modified mixture passes into the separating chamber (31), where blades (36) arranged in star formation and parallel to the axis of rotation, through their centrifugal force, push the components with greater density outwards; the latter having penetrated into the collecting cells (41) of the grid (34) which is coated on the outside of the separating chamber, through holes (42) exit from the rotor upon reaching the accumulation chamber (13). The fluid medium which, countered by a suitable pressure, cannot penetrate into the accumulation chamber, exit through evacuation channels.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: May 14, 2013
    Inventor: Luigi Pietro Della Casa