Including Housing For Bowl Patents (Class 494/60)
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Patent number: 11957828Abstract: Blood is conveyed from a source into a separator, which separates at least one target blood component from the blood. The target blood component is then conveyed out of the separator, with the procedure continuing until an initial target amount of blood to be processed has been conveyed from the source into the separator and the target blood component separated from the initial target amount of blood to be processed has been conveyed out of the separator as an actual yield of the target blood component. An adjusted target amount of blood to be processed is then determined based at least in part on the difference between a target yield of the target blood component and the actual yield. The initial target amount of blood to be processed is then replaced with the adjusted target amount of blood to be processed when next executing the procedure.Type: GrantFiled: September 14, 2020Date of Patent: April 16, 2024Assignee: Fenwal, Inc.Inventor: Brian C. Case
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Patent number: 11938489Abstract: A centrifuge (1) for separating intermixed particulate material of different specific gravity. The centrifuge (1) comprising a centrifuge bowl (10) having a plurality of annular recesses (19), a housing (30), an inlet (17), and means for rotating the centrifuge bowl (10) about the central axis (15). An annular cavity (31) is defined between the housing (30) and the centrifuge bowl (10). The annular cavity (31) is fluidly connected to the plurality of annular recesses (19) on the inner surface of the centrifuge bowl by a number of perforations in the centrifuge bowl wall (12). The annular cavity (19) has a fluid inlet to provide fluid into the annular cavity. The annular cavity (19) has an accumulated cross-sectional flow area (Aflow) at two different heights in the annular cavity that differs by at least a factor 10.Type: GrantFiled: November 11, 2020Date of Patent: March 26, 2024Assignee: FLSmidth A/SInventors: Johnny Johansen, Jesper Gerdes Kyhnauv, Tod Nikischer
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Patent number: 9089852Abstract: 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: GrantFiled: December 10, 2012Date of Patent: July 28, 2015Assignee: GEA Mechanical Equipment GmbHInventor: Stefan Terholsen
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Patent number: 9050609Abstract: 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: GrantFiled: November 30, 2010Date of Patent: June 9, 2015Assignee: Alfa Wassermann, Inc.Inventors: Sandra Patricia Merino, Steven J. Dalessio, Robin Roy Louis Rudy Otten
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Patent number: 9027471Abstract: 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: GrantFiled: April 17, 2012Date of Patent: May 12, 2015Assignee: Golden Choice Products Ltd.Inventors: Kwan Kit Chan, Chung Ming Chan
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Publication number: 20150024922Abstract: 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: ApplicationFiled: February 2, 2013Publication date: January 22, 2015Inventors: Jose Antonio Castillo Gonzalez, Jean-Christophe Drugmand, Vishwas Pethe, Alexandre Terentiev
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Patent number: 8936766Abstract: 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: GrantFiled: October 4, 2011Date of Patent: January 20, 2015Assignee: SpineSmith Partners, L.P.Inventors: Ted Sand, Kevin Dunworth, Greg Forman
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Publication number: 20150018192Abstract: 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: ApplicationFiled: July 18, 2014Publication date: January 15, 2015Inventors: Jens Ducree, Robert Burger
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Publication number: 20140349829Abstract: 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: ApplicationFiled: July 24, 2013Publication date: November 27, 2014Applicant: SIGMA LABORZENTRIFUGEN GMBHInventors: Eckhard Todteberg, Matthias Bittner
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Publication number: 20140305823Abstract: 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: ApplicationFiled: April 14, 2014Publication date: October 16, 2014Inventors: Craig A. Gelfand, Gary D. Fletcher, Bradley M. Wilkinson
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Patent number: 8840838Abstract: 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: GrantFiled: September 26, 2011Date of Patent: September 23, 2014Assignee: Theranos, Inc.Inventors: Elizabeth Holmes, John Kent Frankovich
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Publication number: 20140256529Abstract: 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: ApplicationFiled: November 23, 2012Publication date: September 11, 2014Applicant: BMA Braunschwegische Maschinenbauanstalt AGInventors: Hans-Heinrich Westendarp, Dirk Spangenberg
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Publication number: 20140230381Abstract: 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: ApplicationFiled: October 23, 2012Publication date: August 21, 2014Inventor: Olle Törnblom
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Patent number: 8801586Abstract: 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: GrantFiled: December 20, 2012Date of Patent: August 12, 2014Assignee: Biomet Biologics, LLCInventors: Randel Dorian, Michael D. Leach, Richard W. Storrs, Jason Chavarria
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Patent number: 8734310Abstract: 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: GrantFiled: January 11, 2010Date of Patent: May 27, 2014Assignee: Thermo Electron LED GmbHInventor: Hans Janzen
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Publication number: 20140135197Abstract: 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: ApplicationFiled: June 29, 2012Publication date: May 15, 2014Applicant: HiRes BiosolutionsInventors: Michael J. Nichols, Louis J. Guarracina
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Patent number: 8721793Abstract: 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: GrantFiled: April 4, 2011Date of Patent: May 13, 2014Assignee: The Western States Machine CompanyInventor: Jeffrey R. Hoffmann
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Patent number: 8702577Abstract: 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: GrantFiled: February 11, 2009Date of Patent: April 22, 2014Assignee: Beckman Coulter, Inc.Inventor: Horst G. Krischer
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Patent number: 8636634Abstract: 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: GrantFiled: April 2, 2008Date of Patent: January 28, 2014Assignee: RASP Technologies, LLCInventors: Mark Allen, Robert Miller
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Publication number: 20130345039Abstract: 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: ApplicationFiled: January 27, 2012Publication date: December 26, 2013Applicant: SCOTT SEPARATION TECHNOLOGY LIMITEDInventor: Ross Allan Ward
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Patent number: 8574143Abstract: 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: GrantFiled: September 19, 2007Date of Patent: November 5, 2013Assignee: Sanofi-Aventis Deutschland GmbHInventors: Achim Astheimer, Peter Kraemer, Wolfgang Sittig, Bernhard Unger, Frank Zwilling
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Patent number: 8562502Abstract: 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: GrantFiled: May 23, 2011Date of Patent: October 22, 2013Assignee: Hitachi Koki Co., Ltd.Inventors: Ryou Murayama, Shoji Kusumoto, Yuki Shimizu
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Publication number: 20130274084Abstract: 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: ApplicationFiled: June 13, 2013Publication date: October 17, 2013Inventors: Bent Madsen, Klaus Dircks
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Patent number: 8529425Abstract: 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: GrantFiled: December 7, 2007Date of Patent: September 10, 2013Assignee: Tomoe Engineering Co., Ltd.Inventors: Atsushi Onodera, Keishiro Yamazaki
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Publication number: 20130210600Abstract: 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: ApplicationFiled: February 15, 2013Publication date: August 15, 2013Applicant: STEM CELL PARTNERS, LLCInventor: Stem Cell Partners, LLC
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Publication number: 20130178352Abstract: 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: ApplicationFiled: February 24, 2013Publication date: July 11, 2013Inventors: Robert Goellnitz, Heinz-Gerhard Koehn, Thomas Nehrdich
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Publication number: 20130130885Abstract: 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: ApplicationFiled: March 9, 2011Publication date: May 23, 2013Applicant: ALFA LAVAL CORPORATE ABInventor: Kjell Klintenstedt
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Publication number: 20130123090Abstract: 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: ApplicationFiled: July 20, 2011Publication date: May 16, 2013Inventor: Dirk Hornung
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Publication number: 20130116104Abstract: 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: ApplicationFiled: May 1, 2012Publication date: May 9, 2013Inventors: Heinz-Gerhard Koehn, Eckart Kopowski, Sylke Grune, Sandra David, Ulrike Gaebler, Paul Chatzis
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Patent number: 8402729Abstract: 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: GrantFiled: June 15, 2005Date of Patent: March 26, 2013Assignees: Westfalia Separator AG, Ero-Geratebau GmbH, Hochschule WadenswilInventors: Jochen Hamatschek, Frank Schauz, Peter Schöttler, Hans-Joachim Beyer, Dominik Zielke, Michael Erbach, Tilo Hühn
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Publication number: 20130043195Abstract: 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: ApplicationFiled: August 17, 2012Publication date: February 21, 2013Applicant: O3 INDUSTRIES, LLCInventors: Michael T. O'Konek, Dusten C. O'Konek, JR., Dusten C. O'Konek, SR.
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Patent number: 8343025Abstract: 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: GrantFiled: October 23, 2007Date of Patent: January 1, 2013Inventors: Steven A. McAlister, Mark Henry Vinchoff
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Publication number: 20120277084Abstract: 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: ApplicationFiled: July 12, 2012Publication date: November 1, 2012Applicant: ALFA LAVAL CORPORATE ABInventor: Kjell Klintenstedt
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Publication number: 20120214659Abstract: 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: ApplicationFiled: October 25, 2010Publication date: August 23, 2012Inventors: 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
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Publication number: 20120202673Abstract: 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: ApplicationFiled: February 1, 2012Publication date: August 9, 2012Inventors: Matthew K. Runyon, Daniel M. Mueth, Sergio O. Guevara, Haojun Fu
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Patent number: 8235882Abstract: 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: GrantFiled: November 17, 2009Date of Patent: August 7, 2012Assignee: Alfa Laval Corporate ABInventor: Henrik Reiff
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Publication number: 20120077662Abstract: 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: ApplicationFiled: August 24, 2010Publication date: March 29, 2012Inventors: Agnes Ostafin, Hiroshi Mizukami
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Publication number: 20120028782Abstract: 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: ApplicationFiled: December 23, 2009Publication date: February 2, 2012Applicant: ALFA LAVAL CORPORATE ABInventor: Jon Eiken
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Patent number: 8096933Abstract: 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: GrantFiled: October 20, 2006Date of Patent: January 17, 2012Inventor: Shujiang Song
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Publication number: 20120010062Abstract: 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: ApplicationFiled: June 20, 2011Publication date: January 12, 2012Applicant: CARIDIANBCT, INC.Inventors: Christopher FLETCHER, John PITTINGER
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Publication number: 20120010065Abstract: 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: ApplicationFiled: November 17, 2009Publication date: January 12, 2012Applicant: ALFA LAVAL CORPORATE ABInventor: Henrik Reiff
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Patent number: 8092362Abstract: 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: GrantFiled: March 7, 2007Date of Patent: January 10, 2012Assignee: Westfalia Separator AGInventors: Werner Kohlstette, Olaf Müller, Thomas Homann
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Publication number: 20120004089Abstract: 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: ApplicationFiled: April 8, 2010Publication date: January 5, 2012Applicant: Kubota Manufacturing CorporationInventor: Toshiharu Hashimoto
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Patent number: 8070667Abstract: 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: GrantFiled: October 4, 2007Date of Patent: December 6, 2011Inventor: Jean-Denis Rochat
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Patent number: 8043201Abstract: 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: GrantFiled: August 23, 2006Date of Patent: October 25, 2011Assignee: Hengst GmbH & Co. KGInventor: Dieter Baumann
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Publication number: 20110212819Abstract: 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: ApplicationFiled: May 23, 2006Publication date: September 1, 2011Inventors: Heinz Gerhard Köhn, Eckhard Kopowski, Andreas Heilmann
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Patent number: 7938874Abstract: 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: GrantFiled: December 5, 2008Date of Patent: May 10, 2011Assignee: Dresser-Rand CompanyInventor: Philippe Auber
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Patent number: 7905360Abstract: 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: GrantFiled: July 8, 2004Date of Patent: March 15, 2011Assignee: Luigi Pietro Della CasaInventor: Luigi Pietro Della Casa
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Patent number: 7897054Abstract: 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: GrantFiled: May 21, 2009Date of Patent: March 1, 2011Assignee: Arteriocyte Medical Systems, Inc.Inventors: Victor D. Dolecek, David Malcolm
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Patent number: RE44213Abstract: 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: GrantFiled: July 8, 2004Date of Patent: May 14, 2013Inventor: Luigi Pietro Della Casa