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Imperforate bowl: centrifugal separators

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Class / Patent application numberDescriptionNumber of patent applications / Date published
494001000 WITH CONDITION RESPONSIVE MEANS 68
494043000 ROTATABLE BOWL 57
494037000 PROCESS 55
494010000 WITH MEANS FOR INDICATING, INSPECTING, MEASURING, SIGNALING OR TESTING 31
494016000 INCLUDING PLURALITY OF MINIATURE BOWLS (E.G., TEST TUBES) DISTRUBUTED ABOUT ROTATABLE CARRIER AND READILY REMOVABLE THEREFROM 20
494023000 WITH MEANS FOR FURNISHING AUXILIARY FLUID TO MATERIAL OR APPARATUS 18
494013000 WITH MEANS FOR EXCHANGING HEAT 14
494036000 WITH MEANS FOR FILTERING 13
494038000 INCLUDING SEALING MEANS 13
494012000 INCLUDING MEANS OR STRUCTURE FOR PROMOTING SAFETY 10
494042000 INCLUDING DRIVEN MEANS AT LEAST PARTIALLY EXTERNAL OF BOWL FOR MOVING MATERIAL THERETO OR THEREFROM 6
494083000 INCLUDING BEARING STRUCTURE 5
20100160138Mounting Means For Mounting A Device With A Rotor - A mounting means is provided for mounting a device comprising at least one mounting shield, a pivot bearing arranged in the mounting shield and a rotor mounted perpendicularly in the pivot bearing, an axis of rotation of the rotor being oriented substantially perpendicularly when the device is mounted on the mounting means, and the mounting means having resilient properties. In one embodiment, the resilient properties of the mounting means are direction-dependent, in particular orthotropic. As a consequence of the direction-dependent resilient properties of the mounting means, oscillations excited by a rotary movement of the rotor strike a mounting, the pivot point of which does not coincide with the axis of rotation of the rotor, but is set apart therefrom. This makes it much more difficult to excite the mounting means to form unstable oscillations, so that such oscillations are effectively damped.06-24-2010
20110237418Rotor defining a fluid separation chamber of varying volume - A centrifuge system designed to receive a rotor having variable volumes adapted for collecting and centrifuging biological fluids. The centrifuge system encompasses a chuck that slides along the axis of rotation inside a rotating bucket. Thereby stretching or contracting the volume of the rotor.09-29-2011
20110034313CENTRIFUGE WITH HYDRAULIC DRIVE UNIT - A centrifuge includes a bowl. The bowl includes a cylindrical portion at a first end. The centrifuge further includes a hollow shaft. The hollow shaft is coaxial with the cylindrical portion and extends through at least the first end. The centrifuge also includes a hydraulic drive unit coupled to the cylindrical portion and configured to rotate the cylindrical portion. The hollow shaft and the cylindrical portion are rotatably coupled to each other.02-10-2011
20110256999SECURING MECHANISM, PARTICULARLY FOR BLOOD SEPARATION CENTRIFUGES AND THE LIKE - A chuck for rotating around a rotation axis X10-20-2011
20110124481CENTRIFUGAL SEPARATOR - A centrifugal separator comprises a frame, a spindle and centrifuge rotor on the spindle. The centrifuge rotor comprises a rotor casing, which forms an inner separation space, an inlet for supply of a fluid and an outlet for discharge of a separated component. An electrical drive motor having a stator and a rotor drives the spindle and the centrifuge rotor. The rotor of the drive motor is supported by a first bearing and second bearing. A coupling member connects the rotor of the drive motor and the spindle for transmitting a rotary movement. A third bearing supports the spindle so that it is radially elastic in relation to the frame for transmitting a first part of radial forces between the spindle and the frame. The coupling member comprises a lamella coupling or a universal coupling, and transmits a second part of the radial forces, which exists between the spindle and the frame, to the frame via the rotor of the drive motor and at least one of the first and the second bearing.05-26-2011
494011000 WITH CYCLIC OR TIME CONTROL MEANS 4
20130190159CENTRIFUGE - A centrifuge capable of suppressing a long-time depressurization as compared with the case of starting depressurizing after cooling has been completed as well as shortening a cooling time of a rotor and a sample in the rotor is achieved as compared with the case of starting cooling is at the same time with depressurization. Operation of a Peltier element is started at the same time with operation start of the centrifuge. A bowl is cooled by heat absorption of the Peltier element, and the rotor is cooled by the bowl with using ambient air as a thermal medium. At this time, a vacuum pump depressurizing a rotor chamber is in an OFF state (ambient conditions). After a predetermined time is elapsed, the vacuum pump is turned on to start depressurization of the inside of the rotor chamber.07-25-2013
20100267539CENTRIFUGE WITH POLYMERIZING ENERGY SOURCE - Methods for using a centrifuge are presented. A vessel containing a sample and a separator substance is placed within a centrifuge. Upon sufficient centrifugation, the sample separates into two or more fractions separated by the separator substance. The centrifuge exposes the separator substance to a sufficient energy to polymerize the separator substance to produce a hardened barrier between the fractions.10-21-2010
20120295781MICROFLUIDIC DEVICE FOR WHOLE BLOOD SAMPLE PREPARATION - A CD-based device for separating plasma from whole blood includes a substrate, a sedimentation chamber disposed in the substrate, and a collection chamber disposed in the substrate and in fluidic communication with the sedimentation chamber through a siphon channel. The sedimentation chamber includes a plurality of finger-like structures disposed along a radially outward edge of the sedimentation chamber, and protruding radially inward relative to the axis of rotation of the substrate. A method for separating plasma from whole blood using the CD-based device includes introducing a blood sample into the sedimentation chamber, rotating the substrate about an axis of rotation at a first rotational speed to separate the plasma from blood cells, and rotating the substrate about the axis of rotation at a second rotational speed, which is lower than the first rotational speed, to move the plasma from the sedimentation chamber into the collection chamber.11-22-2012
20120071313CENTRIFUGE HAVING A LUBRICANT SYSTEM - Disclosed is a centrifuge including a rotatable centrifugal drum and a drive spindle to drive the centrifugal drum. The drive spindle is rotatably mounted via a bearing in a housing supported elastically on a machine framework. Further included is a drive device including a drive motor to rotate the drive spindle and a lubricant system to lubricate the bearing. The lubricant system is configured to deliver lubricant from a lubricant supply tank through a lubricant channel into a region of the bearing. An injection device is arranged downstream of the lubricant-supply tank and is configured to deliver the lubricant into the region of the bearing by dispensing quantities of lubricant in temporally discrete pulses with a limited-time air stream. A method is disclosed of directing lubricant into a region of a bearing of the centrifuge as noted above.03-22-2012
494031000 INCLUDING PLURALITY OF SEPARATE AND DISTINCT BOWLS 4
20090291818Centrifugal device and method for fluid component separation - A rotor is provided for the centrifugal separation of a composite fluid, such as animal or human blood, into components. An inner surface of the rotor includes at least one hydrophobic area having a first surface energy sufficiently low to provide a flow path for a lower density fluid component to flow to the bottom of a central collection chamber after centrifugal separation. A method of separating a composite fluid into components using such a rotor is also provided. Additionally, a method of manufacturing such a rotor is provided.11-26-2009
20090005231Method and apparatus for separating cooking oils from snack food products through a quasi-continuous centrifuge action - A centrifuge operative in successive low speed and high speed modes serves to remove surface cooking oil from a continuous stream of fragile snack food products wherein the oil removal occurs in the high speed mode and products are discharged from the centrifuge with relatively low kinetic energy in the low speed mode.01-01-2009
20120190527SWING ROTOR FOR CENTRIFUGAL SEPARATOR AND CENTRIFUGAL SEPARATOR - A swing rotor for a centrifugal separator, the swing rotor including: a hub; and a rotor body disposed around the hub, wherein a plurality of pairs of arms are disposed at the rotor body, wherein a holding pin configured to hold a bucket is disposed to the arm, wherein an engagement portion which is configured to be supported by the holding pin is formed to the bucket, and wherein a sliding surface of the holding pin with an engagement portion of the bucket is formed such that a width of a contact area, which is an area that the holding pin contacts with the engagement portion of the bucket, in an axial direction when the bucket does not swing differs from a width of the contact area in the axial direction when the bucket reaches a horizontal position by swinging during a centrifugal separation operation.07-26-2012
20130210598Multiple Modular In-Line Rotary Separator Bundle - Apparatus and methods for separating a higher-density component from a lower-density component of a mixed flow, with the apparatus including a pressurized casing with a plurality of rotary separators disposed in parallel therein. The casing includes a fluid entrance assembly, a fluid outlet assembly, and a drain. The rotary separators each include an inlet fluidly coupled with the inlet of the fluid entrance assembly, a discharge in communication with the fluid outlet assembly, and an outlet passage in communication with the drain.08-15-2013
494082000 INCLUDING VIBRATION DAMPING MEANS 4
20100009835AUTOMATIC BALANCING CENTRIFUGE USING BALANCER - The present invention relates to a centrifuge including a balancer which contains balls and liquid and enables a rotor to rotate steadily.01-14-2010
20110086752DYNAMICALLY BALANCED CHAMBER FOR CENTRIFUGAL SEPARATION OF BLOOD - A blood separation chamber for rotation about an axis comprises a low-G wall and a high-G wall extending about the axis in a spaced apart relationship to define between them a separation channel. The separation channel includes axially spaced first and second ends. The first end of the separation channel defines at least one generally arcuate recessed region and at least one radial wall within the recessed region sized and positioned so as to aid in balancing the blood separation chamber during rotation about the axis.04-14-2011
20120122650CONTINUOUSLY OPERATING CENTRIFUGE - A continuously operating centrifuge serves for centrifuging sugar massecuites. it has elements (05-17-2012
20100234203DRIVE UNIT FOR A LABORATORY CENTRIFUGE - A compact laboratory centrifuge including a centrifuge rotor and a drive unit for driving the centrifuge rotor. The drive unit includes a motor, a motor housing and a shaft. The centrifuge rotor is attached to and driven by the shaft. The centrifuge rotor includes a recess adapted to receiving the upper portion of the motor housing, which is positioned in the recess.09-16-2010
494084000 INCLUDING SPECIFIC DEVICE OR STRUCTURE FOR DRIVING OR CONTROLLING BOWL 3
20090209404Mechanism for generating directional thrust from a centrifuge - A mechanism for generating directional thrust from a centrifuge, related to an engine that includes; a framework (08-20-2009
20110212822 Centrifuge With A Coupling Element For Axially Locking A Rotor - The invention relates to a centrifuge with a drive head which can be connected with a drive, a rotor which can detachably be mounted on the drive head, at least one connection element with which the drive head can be connected in a torsion-proof manner with the rotor, and at least one coupling element which is attached to the drive head and is able to exert an axial force on the rotor in such a way that the rotor can be fixed axially, with the axial force increasing with the rising rotational speed of the drive head, with the coupling element on the rotor transmitting the axial force by means of a ramp surface which is inclined at an angle (α) relative to the horizontal line in a range of more than 0° to 15°. Secure locking of the rotor during standstill and high speeds can thus be achieved.09-01-2011
20110082021Sound Abating Heat Sink and Motor Housing - 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.04-07-2011
494015000 WITH MEANS FOR LUBRICATING 3
20130190160DECANTER-TYPE CENTRIFUGAL SEPARATOR EQUIPPED WITH CONTINUOUS LUBRICANT SUPPLY DEVICE - A decanter-type centrifugal separator equipped with a continuous lubricant supply device capable of preventing leakage of lubricating oil along supply pathways, and supplying and discharging lubricating oil. The continuous lubricant supply device has a lubricating oil supply channel formed inside a bowl hub, an annular introduction channel that introduces lubricating oil into the lubricating oil supply channel, a lubricating oil infusion channel formed inside a holder, and an oil collector installed on an outer surface of an outer shaft. The annular introduction channel has a first annular groove formed inside the holder such that the groove is occluded on the inside by the outer surface of the outer shaft. The oil collector can orbitally revolve in a predetermined direction inside the annular introduction channel, thereby moving lubricating oil radially inward in the annular introduction channel so as to flow into the lubricating oil supply channel.07-25-2013
20100273625SEPARATOR HAVING A LUBRICATION SYSTEM FOR A SHORT SPINDLE DRIVE - A separator including a rotatable centrifugal drum having a vertical axis of rotation and an inflow line for a material to be processed by the separator. Also included is a drive spindle for the drum rotatably mounted via a mounting to a housing supported elastically on a machine stand section. A drive device includes an electric drive motor having a stator and a rotor which is aligned with the drive spindle. A lubricant system is configured to lubricate the mounting and the lubricant system includes a lubricant circuit to convey lubricant and has a lubricant collecting container.10-28-2010
20120021888CENTRIFUGAL SEPARATOR WITH LUBRICATION DEVICE - The invention relates to a centrifugal separator having a bearing device and a lubricating device comprising a rotatable pump device. The pump device comprises a lubricant inlet to receive lubricant from a lubricant reservoir, and a duct to convey lubricant to an outlet device for delivering at least part of said lubricant in the form of lubricant mist through at least one lubricant outlet. The pump device further comprises a gas inlet and the outlet device comprises a gas outlet, whereby during rotation of the pump device a gas flow is maintained from the gas inlet to the gas outlet bringing along lubricant present in the duct towards the outlet device. The centrifugal separator further comprises a housing which surrounds the bearing device and the lubricating device and which allows lubricant mist to pass from the lubricating device to the bearing device in order to lubricate the latter.01-26-2012
494022000 INCLUDING INTRODUCTION OF DIFFERING-WEIGHT FLUIDS (E.G., LIQUIDS) FOR COUNTERCURRENT FLOW 2
20100120597CENTRIFUGE WITH NON-SYNCHRONOUS DRIVE SYSTEM - A centrifuge may include a main drive system having a first axis of rotation and a bobbin carrier having a bobbin axis of rotation that is parallel to and offset from the first axis of rotation. A transmission system may be connected to the main drive system via a differential in order to transmit power from the main drive system to rotate the carrier bobbin around the first axis of rotation and to rotate the carrier around the bobbin axis of rotation such that the bobbin can rotate around the first axis of rotation at a different speed than the bobbin rotates around the bobbin axis of rotation.05-13-2010
20090075801COUNTER-CENTRIFUGAL FORCE DEVICE - Disclosed herein are integrated microfluidic devices and methods of using the devices for large panel detection and multi-step procedures within a single, enclosed structure. The methods and devices provided herein are capable of two-dimensional and three-dimensional fluid pumping along a disc surface and among multiple discs. In an embodiment, one or more pumps are used to propel sample in a direction opposite the direction of centrifugal force such that sample flows both radially outward and radially inward relative to the disc's axis of rotation. This effectively provides an increase in usable disc space for the flow of sample. The disclosed devices and methods reduce, minimize, or eliminate the surface area limitation of known integrated microfluidic devices. Thus, the disclosed devices provide increased usable surface area of a rotating disc structure.03-19-2009
494085000 MISCELLANEOUS 1
20100323870Apparatus and Method for Separating and Concentrating Fluids Containing Multiple Components - An apparatus that allows for separating and collecting a fraction of a sample. The apparatus, when used with a centrifuge, allows for the creation of at least three fractions in the apparatus. It also provides for a new method of extracting the buffy coat phase from a whole blood sample. A buoy system that may include a first buoy portion and a second buoy member operably interconnected may be used to form at least three fractions from a sample during a substantially single centrifugation process. Therefore, the separation of various fractions may be substantially quick and efficient.12-23-2010

Patent applications in all subclasses Imperforate bowl: centrifugal separators