Class 494/50 - Including driven material-moving means therein

Subclass of Class 494 - Imperforate bowl: centrifugal separators
Definition: Apparatus which includes driven means located within the
No. of patents: 35
Last issue date: 05/20/2008

Number	Title	Issue Date
7374678	Apparatus 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...	05/20/2008
7282019	Centrifuge with shaping of feed chamber to reduce wear A centrifuge of the type having an outer bowl and an inner rotor both of which are generally cylindrical and rotate in the same direction but at slightly different rates separates slurry fed into the interior of the rotor into solids and liquid. An auger flight on t...	10/16/2007
7261683	Conical piston solids discharge and pumping centrifugal separator A centrifugal separator includes a cylindrical bowl having a conical lower end with an opening through which feed liquid is injected during a feed mode of operation. The feed liquid is separated into centrate and solids, which accumulate along the inner surface of t...	08/28/2007
7179391	Apparatus and method for separating and concentrating fluids containing multiple components An apparatus that allows for separating and collecting a concentrated fraction of a fluid, such as a whole blood sample, adipose tissue, or a bone marrow sample. The apparatus, when used with a centrifuge, allows for the creation of at least three fractions in the a...	02/20/2007
7115202	Method for the separation of multi-phase mixture and decanting centrifuge system for carrying out said method A method for separating a multi-phase mixture (50) into a liquid phase (54) and a dry phase (52) with a specified dry matter concentration. A decanting centrifuge (100) with an annular immersion disk (14) and a weir arranged at an ...	10/03/2006
7052451	Conical piston solids discharge centrifugal separator A centrifugal separator includes a cylindrical bowl having a conical lower end with an opening through which feed liquid is injected during a feed mode of operation. The feed liquid is separated into centrate and solids, which accumulate along the inner surface of t...	05/30/2006
7018326	Centrifuge with impellers and beach feed A centrifuge for separating feed material into component parts, in one aspect primarily solid and primarily liquid parts, the centrifuge, in certain aspects, including a conveyor rotatably mounted in a rotatable housing, the conveyor having an interior and at least ...	03/28/2006
6986734	Centrifugal separator with scraper or piston for discharging solids A centrifugal separator provides for the discharge of solids by either an axial-motion scraper or a piston/extrusion assembly. The axial-motion scraper is used with hard-packed or friable solids, and includes an integral feed liquid accelerator and feed holes. The p...	01/17/2006
6932913	Method 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
6800054	Blood separation chamber with preformed blood flow passages and centralized connection to external tubing A blood separation chamber comprises a base that includes formed walls that define a hub. A separation channel extends about the hub. A flow passage extends between the hub and the separation channel. The hub enables attachment of external tubing to convey blood to ...	10/05/2004
6776752	Automatic tube bowl centrifuge for centrifugal separation of liquids and solids with solids discharge using a scraper or piston A centrifugal separator provides for discharge of solids by either an axial-motion scraper or a piston/extrusion assembly. The axial-motion scraper (80) is used with hard-packed or friable solids, and includes and integral feed liquid accelerator and feed hol...	08/17/2004
6632166	Centrifuge having axially movable scraping assembly for automatic removal of solids A centrifugal separator includes a rotatable separator bowl, a hollow shaft spindle in the bowl along the rotational axis of the bowl, and a variable-drive motor for selectively rotating the bowl at a high separating speed and at a lower scraping speed. A...	10/14/2003
6398706	Centrifugal mud separator A centrifugal mud separator includes a base frame, a lower cap, a movable disk, a vane ring, an upper cap, a converging impeller, a soil retention speed reducer and a soil scraping means. Through high speed rotation, a centrifugal force and a stepless rot...	06/04/2002
6224532	Centrifuge blade design and control mechanism An improved blade design and method for enhancing the efficiency of operation of a centrifuge is disclosed based on measuring a varying value of the load on the centrifuge as the flow of contaminated fluid is injected into the centrifuge. The centrifuge h...	05/01/2001
6217502	Centrifugal separator having a liquid filled transmission chamber In a centrifugal rotor (2) for freeing a liquid from solid particles suspended therein and being heavier than the liquid there is delimited a separation chamber (20), in which one or more conveyor screws (29) are arranged to supply separated particles axi...	04/17/2001
6143183	Method and apparatus for controlling and monitoring continuous feed centrifuge Computerized (e.g., "intelligent") systems for monitoring, diagnosing, operating and controlling various parameters and processes of continuous feed centrifuges is presented. The computer control system actuates at least one of a plurality of control devi...	11/07/2000
6123655	Cell separation system with variable size chamber for the processing of biological fluids This invention proposes an improved portable and disposable centrifugal apparatus having a centrifugal processing chamber (13) of variable dimensions that can process a variable quantity of biological fluid, even down to very small quantities, by displace...	09/26/2000
5906571	Centrifugal sorter A centrifugal sorter has a horizontally inclined rotatably driven feed plate and a ring drivable about an approximately vertical axis by means of a ring drive device, which surrounds the feed plate in a substantially horizontal orientation and provides a ...	05/25/1999
5865993	Filter centrifuge with a drying device for the moist solids collected in the centrifuge drum A filter centrifuge includes a centrifuge drum having a solids removal opening for solids collected in the centrifuge drum. A solids drying housing into which the solids removal opening opens is provided. The solids drying housing has a sieve bottom, a ga...	02/02/1999
5849178	Apparatus for separating a blood component from blood plasma An apparatus is provided for centrifuging and further automatically handling a container (110) for separating a component, such as fibrin monomer, from blood. The container (110) comprises a cylindrical member (27) and a piston displaceable in said cylind...	12/15/1998
5658232	Feed accelerator system including feed slurry accelerating nozzle apparatus A feed accelerator system for use in a centrifuge, the system comprising a conveyor hub rotatably mounted substantially concentrically within a rotating bowl, the conveyor hub including at least one passageway connecting an inside surface of the conveyor ...	08/19/1997
5622621	Fluid/liquid separator A rotating drum divided in axial spaced compartments with one of the compartments includes paddles and coalescing material to separate the fluid from the liquid and the other compartment includes a stationary third pump and a stationary water pump for eff...	04/22/1997
5520605	Method for accelerating a liquid in a centrifuge A feed accelerator system for use in a centrifuge, the system comprising a conveyor hub rotatably mounted within a rotating bowl, the hub including an inside surface and an outside surface. At least one feed slurry passageway is disposed between the insid...	05/28/1996
5466385	Gas spurged contrifugation method A separator for separating a first fluid from a second fluid through rotation about an axis of rotation, the first fluid having a density less than the density of the second fluid. In one embodiment, the separator includes a separation chamber mounted for...	11/14/1995
5387342	Centrifugal separator and method A separator for separating a first fluid from a second fluid through rotation about an axis of rotation, the first fluid having a density less than the density of the second fluid. In one embodiment, the separator includes a separation chamber mounted for...	02/07/1995
5356365	Temperature controlled centrifuge A temperature-controlled centrifuge in which a heat exchanger is attached to the bottom portion of the centrifuge bowl to remove heat from the bowl and materials within the bowl interacting therewith. In one embodiment, a heat exchange plate having a plur...	10/18/1994
5203999	Centrifugal oil filter with particle collector A centrifugal oil filter comprises a bowl which is rotatable about a vertical axis within a fixed casing and which is open at its upper and lower ends, the inner wall of the bowl being provided with grooves which trap particles in the polluted oil fed int...	04/20/1993
5098368	Centrifugal 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
4209128	Methods and apparatus for classifying fine particle solids A method and apparatus are provided for classifying fine particle materials from a fluid suspension in the form of a rotatable cylindrical bowl, a rotatable shaft on which said bowl is rotated, means for independently rotating each of said bowl and shaft ...	06/24/1980
4186096	Shiftable bottom wall for separator bowl and blade construction therefor A centrifuge for continuously separating a lubricating liquid from lubricaton-impregnated metal chips. A motor having a drive shaft thereon is mounted so that the drive shaft is drivingly coupled to a substantially bell-shaped centrifugal separator bowl h...	01/29/1980
4122014	Centrifuge for removing liquid media adhering to chips, turnings, borings or the like A centrifuge for removing liquid media adhering to chips, turnings, borings or the like. The centrifuge, which is supplied from above, includes a rotatable sieve drum having its own drive system and an inlet for the material which is to be processed. A di...	10/24/1978
4073731	Push-type centrifuge Push-type centrifuge, with a rotor which comprises a centrifuging drum and a push plate and a push motor comprising a push piston and a push cylinder, which motor is arranged coaxially of the rotor, while the push cylinder is connected fast to the station...	02/14/1978
3997103	Path of conveyance with membrane A path of conveyance is provided with a membrane for transporting a material over a length section of the path towards a discharge end; the membrane demarcates from the material a pressure medium chamber situated at the bottom of the path, extending trans...	12/14/1976
3972514	Centrifuge for the refining of nonferrous metals The centrifuge consists of a hollow housing disposed wherein is a hollow bowl containing a hollow pusher whose side wall is formed by the side wall of the bowl. The hollow pusher is capable of reciprocating inside the bowl, being attached to the piston ro...	08/03/1976
3930608	Centrifuge A centrifuge with a solid-walled drum subdivided into two zones, in the first of which the movement of the solids is controlled by a pushing means, and in the second of the two zones a deposition channel for the solids is arranged, said channel being loca...	01/06/1976

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Class 494/50 - Including driven material-moving means therein