Comprising Or Including Means For Cooling Patents (Class 494/14)
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Patent number: 12004286Abstract: A system and method for treating a cavity comprises preparing a superconducting radio frequency (SRF) cavity for removal of a dielectric layer from on an inner surface of the SRF cavity, subjecting the SRF cavity to a heat treatment in order to remove the dielectric layer from the inner surface of the SRF cavity, and preventing the development of a new dielectric layer on the inner surface of the SRF cavity by preventing an interaction between the inner surface of the SRF cavity and atmospheric gasses.Type: GrantFiled: August 29, 2022Date of Patent: June 4, 2024Assignee: Fermi Research Alliance, LLCInventors: Alexander Romanenko, Sam Posen, Anna Grassellino
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Patent number: 10989102Abstract: An engine coolant separator may include a housing having an inlet and an outlet; and a guide member fixedly mounted inside the housing, and having a spiral channel inducing a spiral flow of an engine coolant, wherein the spiral channel communicates with the inlet of the housing.Type: GrantFiled: October 15, 2018Date of Patent: April 27, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jong Wan Han, Jung Hyeok Lim, Yong Woong Cha
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Patent number: 10981182Abstract: A centrifuge (10) having a centrifuge housing, a safety vessel (14) arranged in the centrifuge housing, an interior space (16) at least partially bounded by the safety vessel (14), a rotor arranged in the interior space (16), and a cooling system, arranged in the centrifuge housing, for cooling the interior space (16), having a compressor (22), a condenser (24) and an evaporator (26), which are connected together via lines. The invention is distinguished by the fact that the cooling system has a primary circuit (52) with primary line (29) and a secondary circuit (62) with secondary line (34), wherein the primary circuit (52) comprises the compressor (22), the condenser (24) and the evaporator (26), which is part of a heat exchanger (30), and wherein the secondary circuit (62) flows through the heat exchanger (30), cools the safety vessel (14) and is provided with a pump (32).Type: GrantFiled: July 24, 2015Date of Patent: April 20, 2021Assignee: ANDREAS HETTICH GMBH & CO. KGInventors: Matthias Hornek, Klaus-Guenter Eberle
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Patent number: 10948401Abstract: An apparatus for measuring a characteristic of a sample using a centrifuge and optical components is disclosed. The centrifuge may be a standard benchtop centrifuge. The optical components may be sized and dimensioned to fit, along with the sample, inside the centrifuge.Type: GrantFiled: February 24, 2017Date of Patent: March 16, 2021Assignees: President and Fellows of Harvard College, Children's Medical Center CorporationInventors: Darren Yang, Andrew Ward, Wesley Philip Wong, Kenneth Anders Halvorsen
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Patent number: 10641415Abstract: The current disclosure presents embodiments directed to, among others, a support and/or clamp (60) for receiving a cylindrical element (e.g., a bearing (90)), which can include a base (62), a pair of opposed receiving members (64) projecting from the base (62) and spaced apart from one other to establish a receiving area (66) configured with a size and shape to removably receive at least one of a circular, cylindrical and spherical object therein, and at least one of a detent (24) and magnet (40) arranged within at least a portion of the receiving area (66), the detent (24) and/or magnet (40) configured to at least one of temporarily retain the object within the receiving area (66) and establish a sound associated with the receiving of the object.Type: GrantFiled: May 5, 2016Date of Patent: May 5, 2020Assignee: MALLINCKRODT HOSPITAL PRODUCTS IP LIMITEDInventors: Mark Vandlik, Shaun Wall, Josef Gabelberger, Eric Rabeno
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Patent number: 10105717Abstract: A separator arrangement includes a drum with a vertical axis and which is rotatably mounted in a hooded area and placed on a rotatable drive spindle. The arrangement also includes a sealed drive area containing one or more or all of the components of a separator drive, and a pump that generates negative pressure in the sealed drive area relative to the surroundings outside of the drive area.Type: GrantFiled: March 22, 2013Date of Patent: October 23, 2018Assignee: GEA Mechanical Equipment GmbHInventors: Wilfried Mackel, Thomas Bathelt, Andreas Penkl, Dieter Strauch
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Patent number: 9993830Abstract: 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: GrantFiled: February 24, 2013Date of Patent: June 12, 2018Assignee: Eppendorf AGInventors: Robert Goellnitz, Heinz-Gernhard Koehn, Thomas Nehrdich
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Patent number: 9981274Abstract: A centrifuge including: a rotor configured to hold a sample and configured to be detachably mounted, a rotation chamber accommodating the rotor, a plurality of motors configured to be rotationally driven by three-phase AC power, and a control device configured to control centrifuging operation, wherein one of the plurality of motors is a centrifuge motor configured to rotate the rotor, and the control device is configured to change distribution of power supplied to the centrifuge motor and power supplied to another motor of the plurality of motors during one operation.Type: GrantFiled: April 13, 2012Date of Patent: May 29, 2018Assignee: HITACHI KOKI CO., LTD.Inventors: Masahiro Inaniwa, Hiroyuki Takahashi, Kouichi Akatsu, Hisanobu Ooyama, Yuki Hodotsuka, Hidetaka Osawa
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Patent number: 9197112Abstract: A device for limiting an unbalance in inside a centrifugal, with an electric motor to drive a rotating component disposed in an enclosure around a rotational axis, wherein a rotor of the electric motor is non-rotatably connected to the rotating component, a bearing assembly for the rotor and the stator to be arranged in, and a stabilizer unit which generates as a function of a disturbing force acting on the rotating component a balancing force that is adapted to compensate said latter, the bearing assembly including support means such as to make the stator radially movable, and the stabilizer arranged radially outside and/or inside said stator and/or support means of the bearing assembly and having stabilizing means whereby in aggregate a radial balancing force can be generated.Type: GrantFiled: June 21, 2012Date of Patent: November 24, 2015Assignee: HANNING ELEKTRO-WERKE GmbH & Co. KGInventors: Thomas Stallinger, Wolfgang Amrheim, Siegfried Silber, Herbert Grabner
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Patent number: 9079195Abstract: 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: GrantFiled: July 24, 2013Date of Patent: July 14, 2015Assignee: SIGMA LABORZENTRIFUGEN GMBHInventors: Eckhard Todteberg, Matthias Bittner
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Publication number: 20150080202Abstract: The present invention relates to a centrifuge having a compressor cooling device and it also relates to methods for controlling a compressor cooling device of a centrifuge. The centrifuge according to the invention has a controllable throttle device in the refrigeration cycle of the compressor cooling device.Type: ApplicationFiled: August 13, 2014Publication date: March 19, 2015Inventors: Heiko Mueller, Sven Fischer, Dieter Wolf
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Patent number: 8974361Abstract: The present invention relates to a centrifuge and a method for cooling a centrifuge. The centrifuge according to the invention includes a cooling device which is improved in that its required installation space is reduced such that the centrifuge can be of a more compact design with the centrifugation capacity remaining unchanged, or the centrifugation capacity can be increased with the installation space remaining unchanged. Further, the number of components can be reduced and thus cost and assembly time can be saved.Type: GrantFiled: June 11, 2013Date of Patent: March 10, 2015Assignee: Eppendorf AGInventors: Sven Fischer, Heiko Mueller
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Publication number: 20150051059Abstract: A separator arrangement includes a drum with a vertical axis and which is rotatably mounted in a hooded area and placed on a rotatable drive spindle. The arrangement also includes a sealed drive area containing one or more or all of the components of a separator drive, and a pump that generates negative pressure in the sealed drive area relative to the surroundings outside of the drive area.Type: ApplicationFiled: March 22, 2013Publication date: February 19, 2015Applicant: GEA Mechanical Equipment GmbHInventors: Wilfried Mackel, Thomas Bathelt, Andreas Penkl, Dieter Strauch
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Patent number: 8951181Abstract: A centrifuge includes a rotor configured to receive sample containers; a drive shaft operatively coupled to the rotor; and a motor. The motor includes a housing; a plurality of substantially parallel fins integral with the housing, each fin having a free end spaced from the housing, wherein the free ends of the plurality of fins are disposed in a common cylindrical plane; and a plurality of substantially parallel grooves, each groove disposed between a pair of adjacent fins and having a groove depth defined by a distance between the common cylindrical plane and the housing. Wherein the plurality of grooves includes a first multitude of grooves having a common groove depth and a second multitude of grooves having a groove depth that is not the same as the common groove depth, wherein the first and second multitude of grooves are interleaved.Type: GrantFiled: September 30, 2010Date of Patent: February 10, 2015Assignee: Beckman Coulter, Inc.Inventor: Jeffrey H. Burns
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Publication number: 20140378289Abstract: An oil cleaning device of an engine oil circuit has a centrifuge that removes particles from oil. The centrifuge has a centrifuge housing with an inlet for the oil to be cleaned and a drain for the cleaned oil. The centrifuge housing has a housing cup and a housing cover detachably connected to the housing cup. A rotor is rotatably arranged inside the centrifuge housing. The housing cover, in a mounted state of the centrifuge, closes off a bottom end of the housing cup. The drain extends through a circumferential wall of the housing cup and has a drain opening provided in a radial inner circumferential side of the circumferential wall. The drain opening has a lower boundary at the radial inner circumferential side. The housing cover has a topside with a radial outer rim arranged at the level of or above the lower boundary of the drain opening.Type: ApplicationFiled: September 12, 2014Publication date: December 25, 2014Inventors: Marco Schweikart, Martin Weindorf
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Publication number: 20140349827Abstract: The present invention relates to a laboratory centrifuge having a cooling device which comprises a compressor enclosed by a compressor housing, with the compressor housing, in the region of the compressor head, being at least regionally provided with a damping material which is capable of absorbing vibrations in the range from 20 Hz to 100 Hz.Type: ApplicationFiled: November 26, 2013Publication date: November 27, 2014Applicant: Thermo Electron LED GMBHInventor: Hans Janzen
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Publication number: 20140200128Abstract: A centrifuge, in particular a separator, includes a rotatable centrifuge drum with a vertical axis of rotation and a non-rotatable fixed housing with a hood and preferably a solids collector. In the centrifuge, the housing, in particular the fixed hood and/or at least one other part of the housing, have at least one first inner wall and a first outer wall which delimit a first cavity. The cavity is at least partly filled with damping/insulation agents that are solid at a process or ambient temperature. A coolant that has a fluid form at a process and/or ambient temperature can be introduced into the first cavity filled with the solid damping/insulation agents.Type: ApplicationFiled: July 2, 2012Publication date: July 17, 2014Applicant: GEA Mechanical Equipment GmbHInventors: Wilfried Mackel, Andreas Penkl, Thomas Bathelt, Reinhard Moss
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Patent number: 8753253Abstract: The present invention relates to a separator for separating air and possibly present solids from a mixture of dental waste water, comprising an air-water separator, wherein a mixture supply tube opens into a centrifuge drum, an air discharge duct extends from the centrifuge drum to the mixture supply tube and the centrifuge drum includes an upper drain edge over which a water outlet is guided onto the outside of the centrifuge drum. In accordance with the invention, the separator is characterized in that the mixture supply tube opens onto a central turbine wheel arranged above the centrifuge drum bottom and an impeller of a waste water delivery pump, which communicates with the water outlet, is arranged on an outside of the centrifuge drum in the vicinity of the centrifuge drum bottom.Type: GrantFiled: July 28, 2008Date of Patent: June 17, 2014Inventors: Bruno Pregenzer, Alfred Konzett
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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: 8697026Abstract: Provided is a method of electrophoresis of carbon nanotube for separating them into metallic carbon nanotubes and semiconducting carbon nanotubes, and the method comprises a step of electrifying a carbon nanotube sealed gel in which carbon nanotubes are dispersed in a gel. According to the separation method, metallic CNT and semiconducting CNT may be efficiently and heavily separated and purified from each other in CNT containing both the two within a short period of time and in a simplified manner by the use of inexpensive facilities and according to a simple process, and the method can be readily scaled up, in which CNT can be separated industrially extremely advantageously.Type: GrantFiled: May 21, 2008Date of Patent: April 15, 2014Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Takeshi Tanaka, Hiromichi Kataura, Hehua Jin, Yasumitsu Miyata
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Publication number: 20140057770Abstract: In one nonlimiting example, an automated system is provided for separating one or more components in a biological fluid, wherein the system comprises: (a) a centrifuge comprising one or more bucket configured to receive a container to effect said separating of one or more components in a fluid sample; and (b) the container, wherein the container includes one or more shaped feature that is complementary to a shaped feature of the bucket.Type: ApplicationFiled: July 18, 2013Publication date: February 27, 2014Applicant: Theranos, Inc.Inventors: Elizabeth A. Holmes, Daniel Young, Timothy Smith, Scott Ridel, John Kent Frankovich, Michael Siegel
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Publication number: 20140031191Abstract: A centrifuge including: a rotor configured to hold a sample and configured to be detachably mounted, a rotation chamber accommodating the rotor, a plurality of motors configured to be rotationally driven by three-phase AC power, and a control device configured to control centrifuging operation, wherein one of the plurality of motors is a centrifuge motor configured to rotate the rotor, and the control device is configured to change distribution of power supplied to the centrifuge motor and power supplied to another motor of the plurality of motors during one operation.Type: ApplicationFiled: April 13, 2012Publication date: January 30, 2014Applicant: HITACHI KOKI CO., LTD.Inventors: Masahiro Inaniwa, Hiroyuki Takahashi, Kouichi Akatsu, Hisanobu Ooyama, Yuki Hodotsuka, Hidetaka Osawa
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Publication number: 20140024516Abstract: A centrifuge including a temperature sensor measuring ambient temperature is provided. Centrifugation operation is available or not is determined in accordance with a type of a rotor, the ambient temperature, or operation conditions set by a user. When it is inoperable, a display device displays that it is inoperable so as to invite the user to select necessity of modification of the operation conditions. Upon the display, modified operation conditions which are candidates of operable operation conditions are displayed to let the user select a candidate. To operate under the selected setting operation conditions, the display device displays that the operation is working under modified conditions.Type: ApplicationFiled: July 15, 2013Publication date: January 23, 2014Inventors: Shoji KUSUMOTO, Tatsuya KONNO, Ryou MURAYAMA, Yuki HODOTSUKA, Yuki SHIMIZU
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Publication number: 20130298577Abstract: The present invention relates to a centrifuge and a method for cooling a centrifuge. The centrifuge according to the invention includes a cooling device which is improved in that its required installation space is reduced such that the centrifuge can be of a more compact design with the centrifugation capacity remaining unchanged, or the centrifugation capacity can be increased with the installation space remaining unchanged. Further, the number of components can be reduced and thus cost and assembly time can be saved.Type: ApplicationFiled: June 11, 2013Publication date: November 14, 2013Inventors: Sven Fischer, Heiko Mueller
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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: 20130219926Abstract: The present invention relates to a centrifuge and a method for cooling a centrifuge. The centrifuge according to the invention includes a cooling device which is improved in that its required installation space is reduced such that the centrifuge can be of a more compact design with the centrifugation capacity remaining unchanged, or the centrifugation capacity can be increased with the installation space remaining unchanged. Further, the number of components can be reduced and thus cost and assembly time can be saved.Type: ApplicationFiled: April 7, 2013Publication date: August 29, 2013Applicant: EPPENDORF AGInventor: EPPENDORF AG
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Patent number: 8444542Abstract: A gear apparatus for a solid-bowl screw centrifuge. The gear apparatus includes a shaft, a gear, and a bearing. The centrifuge includies a drum and a screw, both of which are configured to be driven. The screw is further configured to be driven at a different rotational speed relative to the drum. The gear apparatus is connected between one or more drive motors and the screw and the drum. The gear apparatus is continuously filled with a lubricant and includes a hollow drive shaft having two hollow longitudinal channels extending in an axial direction. Also included is a lubricant compensating system having a lubricant compensating container connected via a line and a rotary lead-through for lubricating the bearing through the two hollow longitudinal channels.Type: GrantFiled: March 17, 2009Date of Patent: May 21, 2013Assignee: Gea Westfalia Separator GmbHInventors: Wilhelm Ostkamp, Richard Neubauer
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Publication number: 20120264582Abstract: The present relates to a container and to a device for indirect material cooling and to a method for producing the container according to the invention. Through the present invention a much more efficient indirect heat transfer is facilitated from the exterior of the container into the interior of the container. The improvement of the heat conductivity and of the heat transfer of centrifuge containers yields a reduction of the necessary power of the refrigeration system for cooled centrifuges. Through the higher performance of the centrifuge a higher speed can be run for identical centrifuge temperatures and/or at the same centrifuge temperature and speed, the input power of the refrigeration unit can be reduced.Type: ApplicationFiled: June 29, 2012Publication date: October 18, 2012Inventors: Bert-Olaf Grimm, Peter Zehnel, Kai Marschner
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Publication number: 20120220441Abstract: A continuous flow centrifuge system is provided. The system includes a rotor, a stator, a stator housing, upper and lower bearing plates, upper and lower bearings, first and second snap rings, and lip seal. The upper bearing rotatably secures a shaft of the rotor in the upper bearing plate. The first snap ring secures the upper bearing to the rotor shaft. The lip seal is over the upper bearing and forms a rotatable seal with the upper bearing plate. The second snap ring secures the lip seal to an inner diameter of the upper bearing plate. The upper and lower bearing plates are secured to the stator housing so that the rotor is operatively aligned with the stator.Type: ApplicationFiled: May 3, 2012Publication date: August 30, 2012Applicant: ALFA WASSERMANN, INC.Inventors: Kurt Spiegel, Sorin Weissman, Bill Lepse, Blaine J. Marsh
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Patent number: 8192343Abstract: A continuous flow centrifuge system is provided. The system includes a rotor, a stator, a stator housing, upper and lower bearing plates, upper and lower bearings, first and second snap rings, and lip seal. The upper bearing rotatably secures a shaft of the rotor in the upper bearing plate. The first snap ring secures the upper bearing to the rotor shaft. The lip seal is over the upper bearing and forms a rotatable seal with the upper bearing plate. The second snap ring secures the lip seal to an inner diameter of the upper bearing plate. The upper and lower bearing plates are secured to the stator housing so that the rotor is operatively aligned with the stator.Type: GrantFiled: December 18, 2008Date of Patent: June 5, 2012Assignee: Alfa Wassermann, Inc.Inventors: Kurt Spiegel, Sorin Weissman, Bill Lepse, Blaine J. Marsh
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Publication number: 20120040816Abstract: The invention relates to a centrifugal separator comprising a casing which delimits and seals off a space in which a rotor is arranged. The rotor forms a separation space which is sealed or isolated from the space, and in which separation space centrifugal separation of a higher density and a lower density component from a fluid takes place. An inlet extends into the rotor for introducing fluid to the separation space, and a first outlet extends from the rotor for discharge of a component separated from the fluid. The space is connected to a pump device which is arranged to remove gas, thereby maintaining negative pressure in said space. The rotor comprises at least one second outlet extending from the separation space to the space for discharge of at least one higher density component separated from the fluid. The invention also relates to a method in such a centrifugal separator.Type: ApplicationFiled: March 5, 2010Publication date: February 16, 2012Applicant: ALFA LAVAL CORPORATE ABInventors: Peter Thorwid, Roland Isaksson, Peter Hagqvist, Carl Häggmark, Lars Hillström
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Publication number: 20110294642Abstract: 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: ApplicationFiled: May 23, 2011Publication date: December 1, 2011Applicant: HITACHI KOKI CO., LTD.Inventors: Ryou MURAYAMA, Shoji KUSUMOTO, Yuki SHIMIZU
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Publication number: 20110281712Abstract: A centrifugal separator for separating oil mist out of the crankcase vent gas of an internal combustion engine or for separating solid contaminants out of the lubricant oil of an internal combustion engine, wherein the centrifugal separator has a rotationally drivable rotor, a housing which accommodates the rotor and a rotary drive for the rotor, wherein the rotary drive is an electric motor arranged within the housing. The centrifugal separator includes an arrangement for cooling the electric motor.Type: ApplicationFiled: November 5, 2009Publication date: November 17, 2011Applicant: HENGST GMBH & CO., KGInventors: Guido Schlamann, Frank Mendel, Martin Rölver, Harald Torno
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Patent number: 8038592Abstract: A centrifuge includes a rotor, a rotation shaft which has a through-hole communicated with an interior of the rotor, a face seal which slidingly contacts an end of the rotation shaft and has a path communicated with the through-hole of the rotation shaft, a wall member which accommodates the face seal, a sample transfer unit which transfers a sample through the rotor, and a coolant circulation unit which circulates a coolant to the wall member. The sample transfer unit transfers the sample by pressure so that a pressure of the sample flowing through a portion where the rotation shaft and the face seal slidingly contact with each other is higher than a pressure of the coolant flowing through the wall member.Type: GrantFiled: September 24, 2009Date of Patent: October 18, 2011Assignee: Hitachi Koki Co., Ltd.Inventors: Hiroatsu Toi, Eiichi Fukuhara
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Patent number: 8025801Abstract: Simultaneous source-sink flow, or radial counterflow, is driven by a centrifugal pump disposed within a casing. Radially outward source flow of brine goes into a shrouding tank and concentrates while a radially inward sink flow of fresh water flows back over the pump to axial extraction. An axial pump drives sink flow and axial extraction. Convergent sink flow passes under an inductor to an axial exhaust port. Induced viscosity and inductive repulsion hinder the passage of brine in sink flow, so only fresh water can reach the axial exhaust port. Crystallization of scale-forming salts is aided by Joule heating from the inductor. Solvent and gases are continuously axially extracted in sink flow, favoring crystallization. Sodium chloride is cooled and crystallized in the shrouding tank. Brine comprising other salts flows out of the tank to treatment by suitable means. Thus brine is separated into fresh water, crystallized salt, and concentrated brine.Type: GrantFiled: August 16, 2007Date of Patent: September 27, 2011Assignee: McCutchen Co.Inventor: Wilmot H. McCutchen
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Publication number: 20110160030Abstract: A laboratory centrifuge according to the invention provides much better de-mixing rates of centrifuged samples since providing at least one rotation compressor introduces substantially less vibration into the laboratory centrifuge, so that much lower remixing rates are provided.Type: ApplicationFiled: December 16, 2010Publication date: June 30, 2011Inventors: Andreas Heilmann, Heiko Mueller, Kai Marschner, Bert-Olaf Grimm
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Patent number: 7909751Abstract: A centrifugal separator includes a sample line and a rotating apparatus portion including a rotor that has a rotor chamber. The centrifugal separator centrifugally separates a sample by supplying the sample from the sample line into the rotor and driving to rotate the rotor in the rotor chamber and discharges the centrifugally separated sample from the rotor via the sample line. The centrifugal separator includes a sterilizing apparatus for sterilizing at least a portion with which the sample is brought into contact by making a sterilizing fluid flow through the sample line.Type: GrantFiled: October 8, 2010Date of Patent: March 22, 2011Assignee: Hitachi Koki Co., Ltd.Inventors: Yoshinori Tobita, Masaharu Aizawa, Katsunori Akatsu, Tomohiro Koizumi
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Patent number: 7901342Abstract: A centrifugal separator includes a sample line and a rotating apparatus portion including a rotor that has a rotor chamber. The centrifugal separator centrifugally separates a sample by supplying the sample from the sample line into the rotor and driving to rotate the rotor in the rotor chamber and discharges the centrifugally separated sample from the rotor via the sample line. The centrifugal separator includes a sterilizing apparatus for sterilizing at least a portion with which the sample is brought into contact by making a sterilizing fluid flow through the sample line.Type: GrantFiled: June 3, 2009Date of Patent: March 8, 2011Assignee: Hitachi Koki Co., Ltd.Inventors: Yoshinori Tobita, Masaharu Aizawa, Katsunori Akatsu, Tomohiro Koizumi
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Publication number: 20110039679Abstract: A wet cyclone particle collector is disclosed. The wet cyclone particle collector includes a cyclone unit, a liquid delivery unit and a sample collection unit. The cyclone unit draws a gas sample into a cyclone chamber and creates a circular flow of the gas sample inside the cyclone chamber so that particles in the gas sample are separated from said gas sample by centrifugation force. The liquid delivery unit delivers a collection liquid into the cyclone in a non-continuous fashion. The sample collection unit harvests the collection liquid from the cyclone unit. The non-continuous delivery of the collection liquid significantly reduces consumption of collection liquid during operation of the particle collector.Type: ApplicationFiled: August 12, 2009Publication date: February 17, 2011Applicants: Northrop Grumman Information Technology, Inc., The Texas A&M University SystemInventors: Raymond M. Pierson, Matthew P. Szarek, Thomas G. Stroka, Andrew R. McFarland
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Publication number: 20110034312Abstract: A gear apparatus for a solid-bowl screw centrifuge. The centrifuge includes a drum and a screw, both of which drum and screw are configured to be driven and the screw is further configured to be driven at a different rotational speed relative to the drum. The gear apparatus is connected between one or more drive motors and the screw and the drum. The gear apparatus is continuously filled with a lubricant and includes a hollow drive shaft having at least one hollow channel.Type: ApplicationFiled: March 17, 2009Publication date: February 10, 2011Applicant: GEA WESTFALIA SEPARATOR GMBHInventors: Wilhelm Ostkamp, Richard Bauer
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Patent number: 7874973Abstract: 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: GrantFiled: May 30, 2008Date of Patent: January 25, 2011Assignee: Hitachi Koki Co., Ltd.Inventors: Katsunori Akatsu, Masaharu Aizawa, Tatsuya Konno
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Patent number: 7850590Abstract: A separator includes a centrifuge drum having a vertical rotational axis and a feed line to feed a product to be centrifugally processed. Further included is a drive spindle having an impeller to drive the centrifugal drum, which drive spindle is rotatably mounted in a housing by a bearing device and which is supported on a machine frame by an elastic support. Also included is a lubrication arrangement and a drive device including an electric drive motor having a stator and a motor rotor which is aligned with the drive spindle.Type: GrantFiled: April 25, 2007Date of Patent: December 14, 2010Assignee: Gea Westfalia Separator GmbHInventors: Wilfried Mackel, Helga Tietz
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Publication number: 20100278714Abstract: Disclosed are a method and an apparatus for separating metallic CNT and semiconducting CNT, comprising treating with a physical separation means of centrifugation, freezing-thawing-squeezing, diffusion, permeation or the like using a gel containing CNT as a dispersed and isolated state (CNT-containing gel), to thereby make semiconducting CNT exist in gel and make metallic CNT exist in solution.Type: ApplicationFiled: December 10, 2008Publication date: November 4, 2010Inventors: Takeshi Tanaka, Hiromichi Kataura
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Patent number: 7794383Abstract: A centrifugal separator includes a rotator part that separates a liquid sample and has a rotor and a drive part. The rotor receives a liquid sample therein and rotates to separate the liquid sample. The drive part drives the rotor to rotate. A controller part controls operations of the rotator part which is mounted in a rotator casing. A controller casing which is separate from the rotator casing mounts the controller part, and the controller part is connected via a drive wire to the drive part in the rotator part. The rotor casing is disposed at a clean room, the controller casing is disposed outside the clean room, and the drive wire passes through a wall of the clean room via an air-tight sealing mechanism.Type: GrantFiled: June 18, 2008Date of Patent: September 14, 2010Assignee: Hitachi Koki Co., Ltd.Inventors: Kenichi Tetsu, Masaharu Aizawa, Katsunori Akatsu, Yoshinori Tobita, Yukiyoshi Maehara
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Publication number: 20100204032Abstract: The present invention relates to a separator for separating air and possibly present solids from a mixture of dental waste water, comprising an air-water separator, wherein a mixture supply tube opens into a centrifuge drum, an air discharge duct extends from the centrifuge drum to the mixture supply tube and the centrifuge drum includes an upper drain edge over which a water outlet is guided onto the outside of the centrifuge drum. In accordance with the invention, the separator is characterized in that the mixture supply tube opens onto a central turbine wheel arranged above the centrifuge drum bottom and an impeller of a waste water delivery pump, which communicates with the water outlet, is arranged on an outside of the centrifuge drum in the vicinity of the centrifuge drum bottom.Type: ApplicationFiled: July 28, 2008Publication date: August 12, 2010Inventors: Bruno Pregenzer, Alfred Konzett
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Publication number: 20100179043Abstract: 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 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: ApplicationFiled: January 11, 2010Publication date: July 15, 2010Applicant: THERMO ELECTRON LED GMBHInventor: Hans Janzen
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Publication number: 20100167899Abstract: A hermetically sealed solids discharge centrifugal separator exhibits low-shear filling, acceleration, and separation of feed material. The separator can be particularly useful for separation and recovery of sensitive solids such as chemical or biological substances. The separator accommodates disposable sample contacting elements to eliminate the need for clean-in-place and sterilize-in-place operations. Some embodiments of the separator feature dual solids discharge pistons, which fully optimize recovery of valuable solids.Type: ApplicationFiled: December 29, 2009Publication date: July 1, 2010Inventor: Robert B. Carr
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Publication number: 20100081553Abstract: The present invention provides a zonal centrifuge which has superior workability and functionality when a sample is filled and extracted. An oil bearing fitted to an outer circumference of a lower tube of a rotor is arranged on an internal face of a bearing housing fixed over a door adapter of the centrifuge. As the oil bearing and the lower tube are lubricated, a vacuum environment in a rotor rotating chamber is maintained. A rotating seal located at an upper leading end of the lower tube of the rotor and a fixing seal facing the rotating seal are arranged and provided in a sealed space formed by a mechanical seal member and the bearing housing, and the fixing seal is so manipulated as to be able to freely join and separate from the rotating seal.Type: ApplicationFiled: September 21, 2009Publication date: April 1, 2010Inventor: Masaharu AIZAWA
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Publication number: 20100075823Abstract: A centrifuge includes a rotor, a rotation shaft which has a through-hole communicated with an interior of the rotor, a face seal which slidingly contacts an end of the rotation shaft and has a path communicated with the through-hole of the rotation shaft, a wall member which accommodates the face seal, a sample transfer unit which transfers a sample through the rotor, and a coolant circulation unit which circulates a coolant to the wall member. The sample transfer unit transfers the sample by pressure so that a pressure of the sample flowing through a portion where the rotation shaft and the face seal slidingly contact with each other is higher than a pressure of the coolant flowing through the wall member.Type: ApplicationFiled: September 24, 2009Publication date: March 25, 2010Inventors: Hiroatsu TOI, Eiichi Fukuhara