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Class 494/47 - Including means for imparting other movement to bowl in whole or in part before, during or after its axial rotation


Subclass of Class 494 - Imperforate bowl: centrifugal separators
Definition: Apparatus which includes means for moving the member, or
No. of patents: 46
Last issue date: 04/01/2008


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NumberTitleIssue Date
7351333Centrifuge
A centrifuge (10) is provided with a cantilevered shaft (18) upon which the main drive rotor (26) is located. A bobbin (62) is attached to the planetary gear shaft (44), which is driven in planetary motion by the rotation of the ro...
04/01/2008
7235177Integral air/oil coalescer for a centrifuge
A centrifuge for separating particulate matter from circulating fluid includes a centrifuge enclosure including a housing and a base joined together so as to define a hollow interior. A rotor is positioned in the hollow interior and is supported by the base in a man...
06/26/2007
7204637Automated device for homogenization and resuspension of substances, disintegration of cells, disruption of tissues and centrifugation of these media
A device for mixing, homogenization, resuspension, disintegration, disruption, or centrifugation of media placed in test tubes, including: a rotor having a replaceable closure; a driver having a substantially vertical shaft; a sleeve having a spiral groove and a bus...
04/17/2007
7144360Centrifugal separator with a separate strip insert mounted in the bowl
A centrifuge concentrator bowl includes a plurality of fluidized recesses at axially spaced positions along the peripheral wall. Each recess is defined by two side walls which has water injection holes for fluidizing materials collecting in the recess. Some of the r...
12/05/2006
6997859Centrifugal separator with fluid injection openings formed in a separate strip insert
A centrifuge concentrator bowl includes a plurality of fluidized recesses at axially spaced positions along the peripheral wall. Each recess is defined by two side walls converging toward a base which has water injection holes for fluidizing materials collecting in ...
02/14/2006
6971525Centrifuge with combinations of multiple features
A centrifuge with combinations of multiple features is disclosed. In one aspect, a centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a sleeve. The fluid separation wall rotates around the axis of rotation....
12/06/2005
6962560Continuous centrifugal separation of slurry using balls contained in a recess of a bowl
A centrifuge bowl for separating heavier particles from lighter particles and water comprises a first conical bowl wall leading to a pair of annular recesses at actually spaced positions. Each recess is generally V-shaped with an upper side wall, a lower side wall a...
11/08/2005
6932913Method for vibration in a centrifuge
A system and method for vibration in a centrifuge is disclosed. A centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a non-rotating sleeve. The fluid separation wall rotates around the axis of rotation and ...
08/23/2005
6805805System and method for receptacle wall vibration in a centrifuge
A system and method for receptacle wall vibration in a centrifuge is disclosed. A centrifuge for removing more dense material from a fluid medium includes a vibratory device associated with the receptacle wall to create a vibratory force. ...
10/19/2004
6706180System for vibration in a centrifuge
A system and method for vibration in a centrifuge is disclosed. A centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a non-rotating sleeve. The fluid separation wall rotates around the axis of rotation and ...
03/16/2004
6468198Method and device for adjusting the liquid content of a solid withdrawn from a self-discharging centrifugal drum of a separator
The invention is a method and apparatus for adjusting a liquid content of a liquid and solid mixture withdrawn from a self-discharging centrifugal drum of a separator. The method includes the steps of: feeding a solid and liquid mixture into the separator...
10/22/2002
6398705Apparatus for separating plasma or serum from the red cells with a blood sample
The method of rapidly separating plasma or serum from red blood cells comprising the steps of mounting a pair of spaced apart tubes coaxially related to one another head-to-head with a sharp-ended hollow needle disposed generally along the tube axes and b...
06/04/2002
6168715Device for oil treatment of sintered parts
The invention concerns a device for the oil treatment of sintered parts consisting of a drum (11, 111) which is mounted so that it can rotate about a vertical axis and which can be driven. It has a drum mantle (11', 111') and loading and unloading devices...
01/02/2001
6132353Apparatus and method for separating plasma or serum from the red cells of a blood sample
Red cells are separated from plasma or serum of whole blood by arranging an evacuated tube sealed by a self-sealing stopper above and preferably coaxial with a tube containing a blood sample and sealed by a self-sealing stopper. A hollow double ended need...
10/17/2000
6074335Rotor with elastic diaphragm defining a liquid separating chamber of varying volume
A rotor for collecting and centrifuging biological fluids in a range of volumes. The rotor includes an elastic impermeable diaphragm which defines at least a portion of a variable-volume processing chamber, where the fluid is centrifuged. The rotor includ...
06/13/2000
6039711System for liquid separation
A rotor for collecting and centrifuging biological fluids in a range of volumes. The rotor includes an elastic impermeable diaphragm which defines at least a portion of a variable-volume processing chamber, where the fluid is centrifuged. The rotor includ...
03/21/2000
6019742Method for liquid separation
A rotor for collecting and centrifuging biological fluids in a range of volumes. The rotor includes an elastic impermeable diaphragm which defines at least a portion of a variable-volume processing chamber, where the fluid is centrifuged. The rotor includ...
02/01/2000
5916082Centrifugal separator with invertable bladder
This separator is a centrifugal device for separating solids from contaminated effluent such as oil or water base coolants and other liquids which are used in a variety of grinding and machining applications in the glass, ceramic and metal-forming industr...
06/29/1999
5733253Fluid separation system
A system for separating a fluid having heavier and lighter components. The system includes a rotor having a rigid mounting member and an elastic diaphragm attached to the mounting member, the diaphragm defining a chamber. The system also includes a chuck ...
03/31/1998
5676835Horizontal vibratory centrifuge
A horizontal screen separator of the present invention includes a base having a housing mounted thereon which contains an horizontal screen basket for receiving product to be dried. The basket is rotatably and vibrationally driven to dry the product. The ...
10/14/1997
5098368Centrifugal apparatus
A centrifugal apparatus including an annular shell of flexible material with annular end rings and means for driving the shell in rotation through the end rings, an external discharge roller in engagement with the outer surface of the shell and directing ...
03/24/1992
4804357Minerals separator
To separate minerals, they are mde up into a slurry applied through feed pipe 46 to a vertical-axis spiralinder 32 spinning on its axis to generate 10 g centrifugal force. The spiralinder is also subjected to axial vibration at 5 to 10 Hz. A film of slurr...
02/14/1989
4799920Minerals separator
To separate minerals, they are made up into a slurry A applied to a hollow tapered cylinder 301 spinning on its axis to generate 10 g centrifugal force. The cylinder 301 is also subjected to axial vibration at 5 to 10 Hz. The cylinder widens at a half-ang...
01/24/1989
4534755Centrifuges
A centrifuge comprises a rotor which tapers conically downwardly from a maximum diameter upper region to a central bottom opening through which a liquid entry pipe projects upwardly. An outlet end of the entry pipe is shrouded by a concentric cone which i...
08/13/1985
4457746Apparatus for centrifugal separation
A centrifugal separator for grain and like particulate material utilizing a rotatably driven separator bowl having an outwardly inclined peripheral wall, in combination with a vibrator. Vibration and centrifugal force acting on material deposited in the r...
07/03/1984
4395257Separating vessel and a separating centrifuge for use in the centrifugal separation of a liquid
A separating vessel, intended to be inserted into a separating centrifuge, consists in a hollow cylinder manufactured from a soft PVC, whereby connection conduits for the feed of the liquid to be separated and for the discharge of the separated fractions ...
07/26/1983
4346009Centrifugal spin-on filter or separator
An oil separator cartridge includes a cylindrical spin-on housing having opposite inlet and outlet ends connected by an intermediate wall with the inlet end including a threaded aperture threadably mountable on an engine oil output tube having a smooth cy...
08/24/1982
4345713Safety lock for air driven centrifuge
In accordance with the present invention, there is provided an air driven centrifuge having an access door to a rotor chamber housing a rotor seat and a rotor having a plurality of turbine flutes formed in the underside thereof. Air jet means in the rotor...
08/24/1982
4341343Magnetically driven centrifuge system
A magnetically driven centrifuge system includes a centrifuge (2) carrying specimen tubes (10) extending radially therefrom and supporting a magnetic member (25). The centrifuge is arranged with a base (18) of the type having a rotating magnet, whereby th...
07/27/1982
4340171Air driven centrifuge adjustable rotor seat
A rotor seat which automatically adjusts its position with respect to the rotor in response to air flow levitation air entering between the rotor and the rotor seat. The central portion of the rotor seat which has a mating design with the design of the bo...
07/20/1982
4322029Air driven centrifuge having a tachometer
In accordance with the present invention, there is provided an air driven centrifuge including a rotor housing having an access door in which there is mounted the illuminating and sensing elements of a photo-optical tachometer with the elements so constru...
03/30/1982
4315593Device for centrifuging liquids containing particles or cells in suspension
A device for centrifuging liquid, inter alia for collecting particles or cells in suspension in the liquid. It comprises a vessel for the liquid to be centrifuged made of a material, for example PVC, such that the liquid sample is held inside it by electr...
02/16/1982
4296882Centrifugal fluid processing device
A centrifugal separator for fluids, e.g. blood, comprised of components or ingredients having different specific gravities, in which a container is mounted on a rotor rotatable about the vertical axis thereof and being rotatable about its horizontal axis ...
10/27/1981
4277017Gear drive for seal-less counter current chromatography
A flow-through coil planet centrifuge mechanism with variable rotation-revolution (r/R) speed ratios, which does not employ rotating seals. The rotation and revolution rates are continuously adjustable by using separate variable-speed drive motors. A syst...
07/07/1981
4228950Horizontal flow-through coil planet centrifuge
A horizontal flow-through coil planet centrifuge wherein flow-through separation columns are rotatably mounted on both sides of a rotor formed by a pair of spaced parallel rotary wings, with suitable intercoupling to avoid the need for rotary seals. Fluid...
10/21/1980
4199459Continuous filtering-settling centrifuge
The subject of the invention is a continuous filtering-settling centrifuge designed for separating continuously mixtures containing solid and liquid bodies. In the centrifuge several filtering or settling baskets are applied, situated beyond the main axis...
04/22/1980
4162761Flow-through coil planet centrifuges with adjustable rotation/revolution of column
A flow-through coil planet centrifuge has variable rotation-revolution (r/R) speed ratios. The rotation and revolution are continuously adjustable by using separate variable-speed drive motors. A first embodiment employs rotating seals, whereas a second e...
07/31/1979
4148607Apparatus and analysis for agglutination reaction
Analysis of and apparatus for studying simple or complex agglutination reactions, such as for blood analysis and in particular blood groupings in which the specimen is mixed with at least one reagent in a vessel of predetermined shape and this mixture is ...
04/10/1979
4073095Centrifugal drum polishing machine
Apparatus for grinding and polishing small parts which is of the centrifugal drum polisher type, said apparatus including a stationary support, a rotor mounted on the support, and a plurality of drum containers mounted on the rotor and in frictional engag...
02/14/1978
4061019Apparatus for generating forces in a specimen
Apparatus for creating vibratory forces in a specimen in which the specimen is positioned within a carrier which is rotated about a remote axis, preferably vertical, to generate centrifugal forces directed radially outward from the remote axis. The carrie...
12/06/1977
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