Comprising Or Including Means For Cooling Patents (Class 494/14)
  • Patent number: 10989102
    Abstract: 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: Grant
    Filed: October 15, 2018
    Date of Patent: April 27, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jong Wan Han, Jung Hyeok Lim, Yong Woong Cha
  • Patent number: 10981182
    Abstract: 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: Grant
    Filed: July 24, 2015
    Date of Patent: April 20, 2021
    Assignee: ANDREAS HETTICH GMBH & CO. KG
    Inventors: Matthias Hornek, Klaus-Guenter Eberle
  • Patent number: 10948401
    Abstract: 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: Grant
    Filed: February 24, 2017
    Date of Patent: March 16, 2021
    Assignees: President and Fellows of Harvard College, Children's Medical Center Corporation
    Inventors: Darren Yang, Andrew Ward, Wesley Philip Wong, Kenneth Anders Halvorsen
  • Patent number: 10641415
    Abstract: 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: Grant
    Filed: May 5, 2016
    Date of Patent: May 5, 2020
    Assignee: MALLINCKRODT HOSPITAL PRODUCTS IP LIMITED
    Inventors: Mark Vandlik, Shaun Wall, Josef Gabelberger, Eric Rabeno
  • Patent number: 10105717
    Abstract: 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: Grant
    Filed: March 22, 2013
    Date of Patent: October 23, 2018
    Assignee: GEA Mechanical Equipment GmbH
    Inventors: Wilfried Mackel, Thomas Bathelt, Andreas Penkl, Dieter Strauch
  • Patent number: 9993830
    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: Grant
    Filed: February 24, 2013
    Date of Patent: June 12, 2018
    Assignee: Eppendorf AG
    Inventors: Robert Goellnitz, Heinz-Gernhard Koehn, Thomas Nehrdich
  • Patent number: 9981274
    Abstract: 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: Grant
    Filed: April 13, 2012
    Date of Patent: May 29, 2018
    Assignee: HITACHI KOKI CO., LTD.
    Inventors: Masahiro Inaniwa, Hiroyuki Takahashi, Kouichi Akatsu, Hisanobu Ooyama, Yuki Hodotsuka, Hidetaka Osawa
  • Patent number: 9197112
    Abstract: 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: Grant
    Filed: June 21, 2012
    Date of Patent: November 24, 2015
    Assignee: HANNING ELEKTRO-WERKE GmbH & Co. KG
    Inventors: Thomas Stallinger, Wolfgang Amrheim, Siegfried Silber, Herbert Grabner
  • Patent number: 9079195
    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: Grant
    Filed: July 24, 2013
    Date of Patent: July 14, 2015
    Assignee: SIGMA LABORZENTRIFUGEN GMBH
    Inventors: Eckhard Todteberg, Matthias Bittner
  • Publication number: 20150080202
    Abstract: 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: Application
    Filed: August 13, 2014
    Publication date: March 19, 2015
    Inventors: Heiko Mueller, Sven Fischer, Dieter Wolf
  • Patent number: 8974361
    Abstract: 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: Grant
    Filed: June 11, 2013
    Date of Patent: March 10, 2015
    Assignee: Eppendorf AG
    Inventors: Sven Fischer, Heiko Mueller
  • Publication number: 20150051059
    Abstract: 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: Application
    Filed: March 22, 2013
    Publication date: February 19, 2015
    Applicant: GEA Mechanical Equipment GmbH
    Inventors: Wilfried Mackel, Thomas Bathelt, Andreas Penkl, Dieter Strauch
  • Patent number: 8951181
    Abstract: 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: Grant
    Filed: September 30, 2010
    Date of Patent: February 10, 2015
    Assignee: Beckman Coulter, Inc.
    Inventor: Jeffrey H. Burns
  • Publication number: 20140378289
    Abstract: 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: Application
    Filed: September 12, 2014
    Publication date: December 25, 2014
    Inventors: Marco Schweikart, Martin Weindorf
  • Publication number: 20140349827
    Abstract: 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: Application
    Filed: November 26, 2013
    Publication date: November 27, 2014
    Applicant: Thermo Electron LED GMBH
    Inventor: Hans Janzen
  • Publication number: 20140200128
    Abstract: 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: Application
    Filed: July 2, 2012
    Publication date: July 17, 2014
    Applicant: GEA Mechanical Equipment GmbH
    Inventors: Wilfried Mackel, Andreas Penkl, Thomas Bathelt, Reinhard Moss
  • Patent number: 8753253
    Abstract: 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: Grant
    Filed: July 28, 2008
    Date of Patent: June 17, 2014
    Inventors: Bruno Pregenzer, Alfred Konzett
  • 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: 8697026
    Abstract: 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: Grant
    Filed: May 21, 2008
    Date of Patent: April 15, 2014
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Takeshi Tanaka, Hiromichi Kataura, Hehua Jin, Yasumitsu Miyata
  • Publication number: 20140057770
    Abstract: 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: Application
    Filed: July 18, 2013
    Publication date: February 27, 2014
    Applicant: Theranos, Inc.
    Inventors: Elizabeth A. Holmes, Daniel Young, Timothy Smith, Scott Ridel, John Kent Frankovich, Michael Siegel
  • Publication number: 20140031191
    Abstract: 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: Application
    Filed: April 13, 2012
    Publication date: January 30, 2014
    Applicant: HITACHI KOKI CO., LTD.
    Inventors: Masahiro Inaniwa, Hiroyuki Takahashi, Kouichi Akatsu, Hisanobu Ooyama, Yuki Hodotsuka, Hidetaka Osawa
  • Publication number: 20140024516
    Abstract: 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: Application
    Filed: July 15, 2013
    Publication date: January 23, 2014
    Inventors: Shoji KUSUMOTO, Tatsuya KONNO, Ryou MURAYAMA, Yuki HODOTSUKA, Yuki SHIMIZU
  • Publication number: 20130298577
    Abstract: 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: Application
    Filed: June 11, 2013
    Publication date: November 14, 2013
    Inventors: Sven Fischer, Heiko Mueller
  • 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: 20130219926
    Abstract: 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: Application
    Filed: April 7, 2013
    Publication date: August 29, 2013
    Applicant: EPPENDORF AG
    Inventor: EPPENDORF AG
  • Patent number: 8444542
    Abstract: 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: Grant
    Filed: March 17, 2009
    Date of Patent: May 21, 2013
    Assignee: Gea Westfalia Separator GmbH
    Inventors: Wilhelm Ostkamp, Richard Neubauer
  • Publication number: 20120264582
    Abstract: 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: Application
    Filed: June 29, 2012
    Publication date: October 18, 2012
    Inventors: Bert-Olaf Grimm, Peter Zehnel, Kai Marschner
  • Publication number: 20120220441
    Abstract: 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: Application
    Filed: May 3, 2012
    Publication date: August 30, 2012
    Applicant: ALFA WASSERMANN, INC.
    Inventors: Kurt Spiegel, Sorin Weissman, Bill Lepse, Blaine J. Marsh
  • Patent number: 8192343
    Abstract: 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: Grant
    Filed: December 18, 2008
    Date of Patent: June 5, 2012
    Assignee: Alfa Wassermann, Inc.
    Inventors: Kurt Spiegel, Sorin Weissman, Bill Lepse, Blaine J. Marsh
  • Publication number: 20120040816
    Abstract: 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: Application
    Filed: March 5, 2010
    Publication date: February 16, 2012
    Applicant: ALFA LAVAL CORPORATE AB
    Inventors: Peter Thorwid, Roland Isaksson, Peter Hagqvist, Carl Häggmark, Lars Hillström
  • Publication number: 20110294642
    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: Application
    Filed: May 23, 2011
    Publication date: December 1, 2011
    Applicant: HITACHI KOKI CO., LTD.
    Inventors: Ryou MURAYAMA, Shoji KUSUMOTO, Yuki SHIMIZU
  • Publication number: 20110281712
    Abstract: 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: Application
    Filed: November 5, 2009
    Publication date: November 17, 2011
    Applicant: HENGST GMBH & CO., KG
    Inventors: Guido Schlamann, Frank Mendel, Martin Rölver, Harald Torno
  • Patent number: 8038592
    Abstract: 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: Grant
    Filed: September 24, 2009
    Date of Patent: October 18, 2011
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hiroatsu Toi, Eiichi Fukuhara
  • Patent number: 8025801
    Abstract: 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: Grant
    Filed: August 16, 2007
    Date of Patent: September 27, 2011
    Assignee: McCutchen Co.
    Inventor: Wilmot H. McCutchen
  • Publication number: 20110160030
    Abstract: 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: Application
    Filed: December 16, 2010
    Publication date: June 30, 2011
    Inventors: Andreas Heilmann, Heiko Mueller, Kai Marschner, Bert-Olaf Grimm
  • Patent number: 7909751
    Abstract: 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: Grant
    Filed: October 8, 2010
    Date of Patent: March 22, 2011
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Yoshinori Tobita, Masaharu Aizawa, Katsunori Akatsu, Tomohiro Koizumi
  • Patent number: 7901342
    Abstract: 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: Grant
    Filed: June 3, 2009
    Date of Patent: March 8, 2011
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Yoshinori Tobita, Masaharu Aizawa, Katsunori Akatsu, Tomohiro Koizumi
  • Publication number: 20110039679
    Abstract: 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: Application
    Filed: August 12, 2009
    Publication date: February 17, 2011
    Applicants: Northrop Grumman Information Technology, Inc., The Texas A&M University System
    Inventors: Raymond M. Pierson, Matthew P. Szarek, Thomas G. Stroka, Andrew R. McFarland
  • Publication number: 20110034312
    Abstract: 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: Application
    Filed: March 17, 2009
    Publication date: February 10, 2011
    Applicant: GEA WESTFALIA SEPARATOR GMBH
    Inventors: Wilhelm Ostkamp, Richard Bauer
  • 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: 7850590
    Abstract: 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: Grant
    Filed: April 25, 2007
    Date of Patent: December 14, 2010
    Assignee: Gea Westfalia Separator GmbH
    Inventors: Wilfried Mackel, Helga Tietz
  • Publication number: 20100278714
    Abstract: 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: Application
    Filed: December 10, 2008
    Publication date: November 4, 2010
    Inventors: Takeshi Tanaka, Hiromichi Kataura
  • Patent number: 7794383
    Abstract: 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: Grant
    Filed: June 18, 2008
    Date of Patent: September 14, 2010
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Kenichi Tetsu, Masaharu Aizawa, Katsunori Akatsu, Yoshinori Tobita, Yukiyoshi Maehara
  • Publication number: 20100204032
    Abstract: 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: Application
    Filed: July 28, 2008
    Publication date: August 12, 2010
    Inventors: Bruno Pregenzer, Alfred Konzett
  • Publication number: 20100179043
    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 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: Application
    Filed: January 11, 2010
    Publication date: July 15, 2010
    Applicant: THERMO ELECTRON LED GMBH
    Inventor: Hans Janzen
  • Publication number: 20100167899
    Abstract: 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: Application
    Filed: December 29, 2009
    Publication date: July 1, 2010
    Inventor: Robert B. Carr
  • Publication number: 20100081553
    Abstract: 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: Application
    Filed: September 21, 2009
    Publication date: April 1, 2010
    Inventor: Masaharu AIZAWA
  • Publication number: 20100075823
    Abstract: 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: Application
    Filed: September 24, 2009
    Publication date: March 25, 2010
    Inventors: Hiroatsu TOI, Eiichi Fukuhara
  • Publication number: 20090239729
    Abstract: 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: Application
    Filed: June 3, 2009
    Publication date: September 24, 2009
    Inventors: Yoshinori TOBITA, Masaharu Aizawa, Katsunori Akatsu, Tomohiro Koizumi