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| Number | Title | Issue Date |
| 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 |
| 7182724 | Disposable centrifuge rotor A disposable, all-plastic centrifuge rotor for fluid processing includes a unitary, molded plastic upper rotor portion that includes a rotor shaft spud. A unitary, molded plastic lower rotor portion is provided and is joined to the upper rotor portion so as to defin... | 02/27/2007 |
| 7144361 | Continuous flow type centrifuge having rotor body and core body disposed therein A continuous flow type centrifuge to which a liquid sample is continuous supplied. The centrifuge includes a rotor rotatably supported by a main housing and drivingly rotated by a motor. The rotor includes a cylindrical rotor body, a hollow cylindrical core body, an... | 12/05/2006 |
| 7134991 | Annular centrifugal extractor with embedded stirring rotor An annular centrifugal extractor with an immersed agitation rotor. The liquid-liquid centrifugal extractor including an emulsion chamber and a settling chamber, aligned because of the addition of a section of axis to the rotor, which allows flow and operation to be ... | 11/14/2006 |
| 7118521 | Centrifugal separator with conical pump inlet A centrifugal separator has a centrifugal rotor that is rotatable about a vertical axis and has both a rotor body for separation of two liquids, having different densities, and a pumping member that is designed to pump via the outside of a conical body a mixture of ... | 10/10/2006 |
| 7077799 | Apparatus and method for a high-efficiency self-cleaning centrifuge having concentrate cylinders A self-cleaning centrifuge for clarifying contaminated liquids has a rotor assembly comprising nested first and second sets of concentric cylinders supported for rotation about an axis. The sets of concentric cylinders are rotatably connected. A motor is connected t... | 07/18/2006 |
| 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 |
| 6984200 | Centrifugal separator for separating solid contaminants from a liquid, rotor for use therein and method of separating contaminants from liquids A centrifugal separator 110 (FIG. 1) for removing contaminants from a pumped liquid such as engine lubricant, having a separation rotor 130 rotatable about axis 124 at high speed by a jet 178 of the liquid impinging upon impulse tu... | 01/10/2006 |
| 6955637 | Separation device having a centrifugal rotor In a separation device for separating particles from a liquid, which is present in a container, a centrifugal rotor is rotatable around a vertical rotational axis. The centrifugal rotor has a tubular inlet member, which extends down into liquid to be treated and whi... | 10/18/2005 |
| 6802804 | Method and a device for separation of a surface layer of a liquid body To clean a relatively heavy liquid from small amounts of relatively light liquid the liquids are first introduced into a container, in which the light liquid is allowed to collect on the surface of the heavy liquid. A surface layer of the liquid body in the containe... | 10/12/2004 |
| 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 |
| 6740027 | Solid bowl centrifuge with liquid release during rotation A solid bowl centrifuge with liquid release during rotation includes a frame, solid bowl, drive device, scraper assembly, slurry spray, and liquid collection trough. The solid bowl includes a centrifuge chamber, and a liquid evacuation chamber. A plurality of openin... | 05/25/2004 |
| 6699169 | Centrifugal extractor with neutron absorption body A centrifugal extractor has a rotor supported rotatably in a housing 10, and an aqueous phase liquid and an organic phase liquid are supplied to the outer circumference of the rotor and mixed between the housing and the rotor. A mixed phrase liquid is suc... | 03/02/2004 |
| 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 |
| 6616590 | Low-shear feeding system for use with centrifuges There is provided a centrifugal separator for solid-liquid separations. The centrifugal separator comprises (a) an accelerator rotatable at an angular velocity, ω about an axis, and having an inside surface with a point on the axis, and (b) a nozzle for ... | 09/09/2003 |
| 6475132 | Double-intake disk centrifuge A disk centrifuge having an intake device which includes two mutually separated intakes which are concentric with respect to the axis of rotation of the centrifugal drum and lead from opposite ends into a common distributor in the centrifugal drum. In a p... | 11/05/2002 |
| 6440054 | Apparatus for liquid-liquid extraction Liquid--liquid extraction apparatus includes a separator tank rotatable about an axis extending through the tank, a tank inlet for a mixture of two liquids of different densities and which are substantially insoluble in each other, a tank outlet on the ax... | 08/27/2002 |
| 6363611 | Method of making an easily disassembled rotor assembly for a centrifugal separator A five-part rotor assembly is easily disassembled for cleaning and/or sterilization. The five parts comprise a rotor sleeve, a rotor head, a weir plate, a rotor cover and an internal vane package. Each of these parts is machined as a unitary piece or othe... | 04/02/2002 |
| 6056685 | Centrifuge having selectively operable harmonic drive for scroll conveyor A centrifuge includes a frame, a hollow spindle supported by the frame for rotation about an axis, a bowl including a shell fixed to the spindle for rotation with the spindle, a shaft situated within and movable with respect to the hollow spindle, and a c... | 05/02/2000 |
| 5919125 | Centrifuge bowl for autologous blood salvage An improved centrifuge bowl and related system is disclosed which is particularly apt for enhanced autologous blood salvage applications. The centrifuge bowl assembly includes a rotatable outer bowl, an internal spacer interconnected therewithin, and a st... | 07/06/1999 |
| 5916082 | Centrifugal 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 |
| 5823937 | Low-shear feeding system for use with centrifuges A centrifugal separator for separating the solids component of a feed liquid comprises a bowl that is rotatable about a vertically disposed axis. The bowl has an interior wall, an open upper end, a closed lower end, and a generally cylindrical portion. A ... | 10/20/1998 |
| 5785637 | Centrifuge with successive centrifugation modules A centrifuge for a fluid uses a series of centrifugal modules to separate the fluid from particles suspended in the fluid. The fluid enters through the bottom of the centrifuge and is subjected to the centrifugal force by a set of rotors. The fluid is for... | 07/28/1998 |
| 5674174 | Low-shear feeding system for use with bottom feed centrifuges A centrifugal separator for separating the solids component of a feed liquid comprises a bowl that is rotatable about a vertically disposed axis. The bowl has an interior wall, a conical lower end and a generally cylindrical portion. The conical lower end... | 10/07/1997 |
| 5674392 | Treatment assembly for treating a fluid by filtering and centrifuging The invention relates to a fluid treatment assembly comprising a filter (4) which itself comprises filtering elements (5) and a cleaning device (12) for periodically cleaning each filtering element including a conduit (17) for the evacuation of the cleani... | 10/07/1997 |
| 5571070 | Rotor sleeve for a centrifugal separator A centrifugal separator includes a rotor sleeve which reduces the fine scale mixing of liquid components. The rotor sleeve in the annular mixing zone minimizes liquid-liquid shear, but does not adversely affect the pumping action of the rotor. The separat... | 11/05/1996 |
| 5254076 | Centrifugal pyrocontactor A method for mixing and separating immiscible liquid salts and liquid metals in a centrifugal contractor. The method includes introducing the liquids into an annular mixing zone and intensely mixing the liquids using vertical vanes attached to a rotor coo... | 10/19/1993 |
| 5254075 | Internal circulation type centrifugal extractor A centrifugal extractor for making liquid-liquid extraction by bringing an organic phase and an aqueous phase into mutual contact and utilizing centrifugal force. A rotor rotating at a high speed is disposed inside a cylindrical casing having inlets for b... | 10/19/1993 |
| 5221460 | Continuous autorefrigerative dewaxing crystallization using a centrifuge Hydrocarbon dewaxing using propane or other autorefrigerative dewaxing solvent can be practiced in a centrifuge wherein the centrifugal force generated in the centrifuge produces a pressure gradient permitting dewaxing to be practiced on a continuous basi... | 06/22/1993 |
| 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 |
| 5045048 | Rotary centrifuge bowl and seal for blood processing A seal for a blood processing centrifuge bowl which is formed of a dynamic rotary seal and a static seal. The dynamic rotary seal is formed of an upper graphite or carbon non-rotating ring member and a lower two-piece rotatable ring member formed of a cer... | 09/03/1991 |
| 5024647 | Centrifugal contactor with liquid mixing and flow control vanes and method of mixing liquids of different phases The invention is directed to a centrifugal contactor for solvent extraction systems. The centrifugal contactor is provided with an annular vertically oriented mixing chamber between the rotor housing and the rotor for mixing process liquids such as the aq... | 06/18/1991 |
| 4824431 | Centrifugal concentrator Prior centrifugal concentrators for concentrating precious minerals use annular ribs or baffles to trap the precious minerals. Sand or magnetite tends to pack against such ribs, reducing the effectiveness of these devices. In the present invention, the in... | 04/25/1989 |
| 4530691 | Centrifuge with movable mandrel There is disclosed herein a liquid processing apparatus for use in centrifugal apheresis in which whole blood is received from a donor, separated into therapeutic components and selectively collected. The apparatus includes a processing chamber support sy... | 07/23/1985 |
| 4516987 | Deaerator usable in a system for a steam powered torpedo and deaerating method An apparatus and method for removing air and other gases entrained in water or other liquid and, more particularly from water delivered from a steam condenser and used in a steam-generating system for powering a prime mover of a torpedo. The apparatus inc... | 05/14/1985 |
| 4460286 | Centrifugal ball elevator for microballistic printer A centrifugal ball elevator for use in a microballistic impact printer or the like in which a hollow rotary member arranged on a generally vertical axis and having an inlet at the lower end and an outlet at the upper end is formed with an internal surface... | 07/17/1984 |
| 4430071 | Feed seal for bottom feed centrifuge A nozzle type centrifuge having a bottom feed inlet to a main pumping chamber at the base of the machine for injecting the feed slurry to a rotor bowl having separator discs for effecting a two-fraction separation comprising an overflow at the top and an ... | 02/07/1984 |
| 4410317 | Self-discharging centrifugal drum A self-discharging centrifugal drum for clarifying and separating suspensions has an axially displaceable piston valve that is bounded above by a solids space and that opens and closes expulsion openings in the drum jacket. A closure compartment that can ... | 10/18/1983 |
| 4406651 | Multi-phase self purging centrifuge A centrifuge apparatus (10) for separating multi-phase fluid is disclosed. The centrifuge apparatus (10) includes a bowl-like structure (12) rotatably mounted in a housing (14) for rotation about a vertical axis. The centrifuge apparatus (10) further incl... | 09/27/1983 |
| 4365741 | Continuous centrifugal separation of coal from sulfur compounds and mineral impurities A centrifuge method and apparatus particularly useful for desulfurizing slurry coal, and for removing mineral impurities therefrom, so that such coal may be more economically transported in pipeline systems. A slurry of finely-divided coal and impurities ... | 12/28/1982 |
