Including Structure Located Within Vertically-oriented Bowl And Extending Outwardly From Central Region (e.g., Axis) Thereof Patents (Class 494/67)
  • Patent number: 5256289
    Abstract: An improved vertical, centrifugal separator (100) includes a drive mechanism (142) to which is connected both a flight assembly (138) and a screen assembly (166). An inlet assembly (124) is positioned above the flight and screen assemblies for material (M) to be separated to be fed into the separator. This material is captured between the flight and screen assemblies and falls downwardly therebetween as separation occurs A pocket assembly (144) integral with the screen assembly is positioned between a discharge port of the inlet assembly and the upper end of the flight assembly. The pocket assembly creates a "basket" for catching material introduced into the separator through the inlet assembly, and replaces the upper portion of the screen assembly which previously was used to catch this material. The screen assembly includes a rotor (182) having a plurality of spokes (196) defining an outlet for separated solid material.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: October 26, 1993
    Assignee: Centrifugal & Mechanical Industries, Inc.
    Inventors: Dewey M. Cope, Harry E. Derton
  • Patent number: 5244502
    Abstract: A continuously operable centrifuge for spinning off sugar massecuite has an upwardly conically expanded strainer basket (20) mounted for rotation about a vertical axis (16). A downwardly conically expanding massecuite distributor (40) rotating with the basket reaches into a floor region of the strainer basket substantially coaxially to the strainer basket. The lower rim of the distributor forms a throw-off edge. Inside and in the upper region of the massecuite distributor (40), a distributing cup (30) is for distributing massecuite. The peripheral wall of the massecuite distributor (40) is formed by several ring elements (41), (42, 43) which partly overlap in the axial direction leaving an annular gap (44, 45). The product distributor is surrounded by a downwardly conically expanding stationary bell (51) which forms a further gap or gap space between itself and the rotating rings.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: September 14, 1993
    Assignee: Braunschweigische Maschinenbauanstalt AG
    Inventors: Helmut Schaper, Heinrich Kurland
  • Patent number: 5222933
    Abstract: A centrifugal separator of the type comprising a bowl having a base and a peripheral wall surrounding a vertical axis about which the bowl rotates and a jacket having a base plate under the base of the bowl and a sleeve surrounding the peripheral wall includes a central bottom discharge for the concentrate. The bowl is mounted on the shaft with a hub connecting the shaft to the base plate of the jacket. Water is supplied through the shaft and through a pair of ducts passing through the hub and into the area of the base of the bowl. The discharge also extends through the hub through a pair of ducts which diverge from the central discharge opening outwardly and downwardly into a collection chamber. The discharge duct portions through the hub are angularly offset from the water supply duct portions through the hub so that both can be formed in the hub.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: June 29, 1993
    Assignee: Benjamin V. Knelson
    Inventors: Benjamin V. Knelson, Andre Cauchon
  • Patent number: 5221460
    Abstract: 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 basis.
    Type: Grant
    Filed: May 22, 1991
    Date of Patent: June 22, 1993
    Assignee: Exxon Research & Engineering Company
    Inventor: Abraham R. DeKraker
  • Patent number: 5156586
    Abstract: An orbital separator for separating the components of a mixture by introducing a flow of the mixture into a container which has therein an axial mounted member for directing the flow of the mixture to the periphery of the container and which allows removal of the separated components of the mixture.
    Type: Grant
    Filed: July 10, 1990
    Date of Patent: October 20, 1992
    Assignee: Bardyne
    Inventors: Ernest C. Fitch, Jr., Ing T. Hong
  • Patent number: 4950220
    Abstract: A throughput centrifuge for the industrial production of proteins from human blood plasma, with a cylindrical centrifuge drum provided with several concentric chambers that communicate at the bottom and with the blood plasma or similar material being supplied to the central zone and a liquid phase continuously extracted from the outer zone. The drum accordingly accommodates plastic containers constituting concentric annular or annular-segmental chambers that communicate through at least one channel at the bottom, wherein the container or containers toward the axis that the drum rotates around have an inlet connection and the container or containers in the outer zone of the drum have an outlet channel at the top, and wherein the outer surfaces of the containers, of the communicating channel or channels, of the outlet channel or channels, and of the inlet connection or connections rest against the inner surfaces of the drum and against structures that can be inserted into and removed from the drum.
    Type: Grant
    Filed: May 19, 1988
    Date of Patent: August 21, 1990
    Assignee: Westfalia Separator AG
    Inventors: John R. Wells, Gunthard Pautsch, Detlef Grabbe, Werner Kohlstette
  • Patent number: 4932933
    Abstract: In a centrifuge device whose purpose is in particular the separation of amalgam from waste water generated in dentist' offices, the following is provided in order to improve the determination of the filling level in a collecting tank downstream from a centrifuge, to obtain better utilization of the container volume, to reduce the residual moisture in the separated solids, and to simultaneously eliminate the repumping means which operate between the collecting tank and the centrifugal. The collecting tank is detachably attached to a centrifuge drum and rotates together with the centrifuge, with measures being taken for separating the clean-water space from the centrifuge drum, there is also provided a transport container which can be detached from the device together with a collecting tank, which container can, when the collecting tank is in it, be closed by means of a cover which, when it is not in use, is detachably attached to the transport container.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: June 12, 1990
    Assignee: EMDA Fabrik elektromedizinischer and dentaler Apparate Georg Hartmann GmbH & Co. KG
    Inventors: Ernst Becker, Manfred Pausch, Horst Panzer
  • Patent number: 4915682
    Abstract: A liquid separator has a centrifuge rotor (1) with a set of conical separation discs (21) arranged coaxially in the separation chamber (13). The inlet of the separation chamber is formed as inlet passages (20) which extend radially outwards from a central inlet chamber (16) in the rotor, along that end wall of the separation chamber, towards which the apex ends of the separation discs face. The inlet passages (20) are formed between that end wall and a partition member (18, 19) situated between the rotor end wall and the separation discs (21). The outlet of the separation chamber (13) for separated liquid is formed by a number of channels (22) through the partition member (18, 19) and aligned channels through tubular members (23) bridging said inlet passages (20).
    Type: Grant
    Filed: September 27, 1988
    Date of Patent: April 10, 1990
    Assignee: Alfa-Laval Separation AB
    Inventor: Klaus Stroucken
  • Patent number: 4798577
    Abstract: Separation device and method for the fractionation and separation of finely divided solid particulate material suspended in a liquid are disclosed. The separation device comprises upper and lower portions which are joined together to form an inner cavity retaining liquid and a capillary gap which extends outwardly radially from said cavity. During rotation solid particles present in the suspending liquid pass outwardly along and/or become entrapped in the capillary gap(s).
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: January 17, 1989
    Assignee: Miles Inc.
    Inventors: Allen J. Brenneman, Harvey B. Buck, Jr., Jerry T. Pugh, Steven P. Robertson
  • Patent number: 4784635
    Abstract: In the continuous-operation centrifuge drum for concentrating suspended solids the solids are conveyed to a central chamber from a solids space through channels. Before the solids arrive in the central chamber, they must travel through an unribbed annular space. Since the solids concentrate tends to increase its existing kinetic energy, a higher flow resistance is generated. As viscosity increases, the solids, however, are more powerfully affected by friction in the unribbed annular space, their kinetic energy decreases, and the flow resistance decreases. The resulting increase in the volume of solids extracted also decreases its concentration and hence its viscosity. This behavior of the solids in the unribbed annular space of a rotating drum results in automatic regulation of the solids concentration.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: November 15, 1988
    Assignee: Westfalia Separator AG
    Inventors: Paul Bruning, Wilfried Mackel, Ulrich Wrede
  • Patent number: 4696666
    Abstract: A centrifuge rotor and apparatus for the determination of whole blood micro-hemotocrits for in vitro diagnostic use. The centrifuge rotor comprises a base with at least two inner tube retainers and at least two outer tube retainers. An elongated hole is provided in both of the tube retainers for securely positioning a tube containing blood onto the centrifuge rotor. As the centrifuge rotor is subjected ot rotary action, the tubes are held in place by centrifugal force in conjunction with the inner and outer tube retainers and neither central lateral support for the tubes nor a separate cover is required for use of the rotor or apparatus.
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: September 29, 1987
    Inventor: Richard D. Rice, Jr.