Centrifugal Filling Patents (Class 141/34)
  • Patent number: 10882733
    Abstract: An optical fluid sensor (OFS) is disclosed that includes a body defining a chamber and having one or more apertures to allow a fluid to enter the chamber, a light source optically coupled to the chamber and configured to emit light into the chamber, and a detector optically coupled to the chamber and configured to receive light from the chamber. The light source may emit IR, visible, and UV light into the chamber, and the detector may measure an intensity of one or more wavelengths of IR or visible light received by the detector. When fluid is disposed within the chamber, the light emitted by the light source may pass into and through the fluid disposed in the chamber before being received by the detector. A crossover protection system is also disclosed that includes an OFS for determining a transported liquid type.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: January 5, 2021
    Assignee: Knappco, LLC
    Inventors: Erik Paul Bjornebo, Jeffrey Joseph Blair, Mark William Dudley, Richard Lee Henderson
  • Patent number: 10799948
    Abstract: A method and apparatus cast a material with nano-micro duplex grain structure. The apparatus includes module system, heating system casting mold and gating system, multiaxial compound motion system accompanied by the following technological characteristics; alloy smelting; after heat preservation, alloy melt is poured into the casting mold which is put into the centrifugal barrel of the six-axis motion system; then the casting mold carries out composite motion and the alloy melt starts solidification; as a result, casting Al—Si alloy block with multi-scale nano-structure includes nano-micro duplex grain group is prepared.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: October 13, 2020
    Inventors: Zidong Wang, Tao Wang, Xiaohua Chen
  • Patent number: 9562795
    Abstract: A deluge guard has an impeller system for protecting a sensor head from liquid inundation.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: February 7, 2017
    Assignee: Scott Technologies, Inc.
    Inventor: Jeffrey Lynn Landis
  • Publication number: 20140014224
    Abstract: A method for open jet filling of containers with liquid content using a machine having a rotor that rotates around a machine axis. The rotor carries filling stations, each having va filling element, each having an opening and a container carrier. The carrier holds a container such that its opening is at a selected distance from the dispensing opening. Contents dispensed in a controlled manner by the filling element flow in an open filling jet directed toward the container opening. The method includes compensating for deflection of the filling jet due to centrifugal force acting on it when the rotor rotates by causing controlled relative movement between the filling element and the container. As a result of this movement, the open jet cleanly enters the container through the container opening.
    Type: Application
    Filed: March 2, 2012
    Publication date: January 16, 2014
    Inventor: Jürgen Vorwerk
  • Publication number: 20130167974
    Abstract: System for feeding and processing bottles (1) to be conveyed to a device (30) for entry into a filling machine (40) operating at an assigned speed (Vp), the system comprising: a realignment centrifuge (100) fed randomly with the bottles (1) and having a tangential outlet (113); movement devices (12, 13, 14), able to convey the bottles (1) leaving the realignment centrifuge (100) and vary the speed of advancing movement thereof; at least one device (21) for handling the bottles; the realignment centrifuge is operated at an operating speed (Vc) greater than the speed (Vp) of the filling machine, and movement devices (12, 14) comprise at least a first device (12); a third device (14); said handling device (21) has means (5) for gripping the bottles.
    Type: Application
    Filed: March 9, 2011
    Publication date: July 4, 2013
    Inventor: Cesare Ronchi
  • Publication number: 20130048145
    Abstract: A loading apparatus for distributing particulate matter during loading of the particulate matter into a transport container, the apparatus including a housing including an inlet and an outlet, each configured on a side of the housing so that particulate matter can pass through the housing from the inlet to the outlet and from the outlet along a flow path of the particulate matter into a transport container; a rotary drive operatively supported with respect to the housing; and a rotatable member operatively connected with the rotary drive and supported with respect to the housing so as to be rotatable within the flow path for spreading particulate matter within the transport container in a radial direction away from the flow path of the particulate matter from the housing outlet, the rotatable member comprising a central axis and at least two curved arms extending radially from the central axis.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 28, 2013
    Inventor: Steven G. Redford
  • Patent number: 7857014
    Abstract: A machine for metering microtablets into capsules has a metering surface subjected to vibration and to rotation about a respective perpendicular axis; and an unloading device, which is fixed with respect to and cooperates with the metering surface, and is substantially defined by a cam member and an air outlet. In the metering surface are formed a number of sloping surfaces, along which the microtablets travel upwards, and a respective number of pockets, each for receiving the microtablets from a respective sloping surface. Each pocket has a bottom wall, which cooperates with the cam member and is movable between a fully-closed position, in which the microtablets are retained inside the respective pocket, and a fully-open position, in which the microtablets are unloaded. A number of holes are formed in a raised edge of the metering surface, and, when the holes are aligned with the air outlet, air is blown through the holes to prevent further microtablets from falling into the pockets.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: December 28, 2010
    Assignee: MG 2 S.r.l.
    Inventor: Ernesto Gamberini
  • Publication number: 20100147415
    Abstract: A container processing apparatus comprises a rotor, and a rotor support that is mechanically coupled to the rotor. The rotor comprises at least one container processing station. The rotor support is configured to facilitate rotation of the rotor around the rotor support. The container processing station is configured to releasably capture a container, to exert, via the rotation, centripetal force on the container, and to move material (liquid, granular, shredded, particulate or paste-like material) within the container via the centripetal force.
    Type: Application
    Filed: May 14, 2008
    Publication date: June 17, 2010
    Applicant: 2138357 Ontario Inc.
    Inventor: Luc LAFOND
  • Patent number: 7641858
    Abstract: An apparatus introducing a fluid using a centrifugal force includes an introduction member including a chip receiver and a fluid introduction reservoir, the chip receiver receiving a first part of a microfluidic chip, the first part including an inlet, the fluid introduction reservoir storing a fluid to be introduced to the microfluidic chip, the fluid introduction reservoir having an exit formed to correspond to the inlet of the microfluidic chip received in the chip receiver, and a support member supporting a second part of the microfluidic chip, wherein the microfluidic chip is disposed between the introduction member and the support member, the apparatus is rotatable in a state where the introduction member is closer to a center of rotation than the microfluidic chip, and the fluid is introducible from the fluid introduction reservoir through the inlet into the microfluidic chip due to a centrifugal force generated by rotation.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: January 5, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-rok Kim, Jun-hong Min, Kak Namkoong, Kwang-ho Cheong, Chang-eun Yoo, Ki-woong Han, Ki-eun Kim
  • Publication number: 20080277018
    Abstract: A refilling pump arrangement comprises a refilling hose (1), and a pump (2) mounted at the free end of the hose which takes in fluid. This hose and pump arrangement can be stored anywhere, either on or off a vehicle or other machine that receives fluid, and when stored on the machine the hose and pump can be stored in an area that does not need to be adjacent the liquid tank. This enables space savings for the parts of the vehicle which have the most critical space demands.
    Type: Application
    Filed: June 2, 2008
    Publication date: November 13, 2008
    Inventors: Ian Worswick, David Trimby, Chas Millard, Steve Cox, Lee Bishop
  • Publication number: 20080072994
    Abstract: An apparatus introducing a fluid using a centrifugal force includes an introduction member including a chip receiver and a fluid introduction reservoir, the chip receiver receiving a first part of a microfluidic chip, the first part including an inlet, the fluid introduction reservoir storing a fluid to be introduced to the microfluidic chip, the fluid introduction reservoir having an exit formed to correspond to the inlet of the microfluidic chip received in the chip receiver, and a support member supporting a second part of the microfluidic chip, wherein the microfluidic chip is disposed between the introduction member and the support member, the apparatus is rotatable in a state where the introduction member is closer to a center of rotation than the microfluidic chip, and the fluid is introducible from the fluid introduction reservoir through the inlet into the microfluidic chip due to a centrifugal force generated by rotation.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 27, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-rok KIM, Jun-hong MIN, Kak NAMKOONG, Kwang-ho CHEONG, Chang-eun YOO, Ki-woong HAN, Ki-eun KIM
  • Patent number: 6901972
    Abstract: A device and method of operation for filling medicine capsules, in which a fixed quantity of open capsules to be filled are supported in a circular array by a holder plate beneath the periphery of a rotatable distribution drum. In use, a measured supply of filling medication, in dry granular form, is dispensed into the center of the rotating drum where it is distributed evenly by centrifugal force along the periphery of the drum. As the drum stops rotating, the medication flows by gravity into the capsules, which are then inspected, closed and packaged. The distribution of filler material is more even than if the capsules were filled by hand, and the average quantity (both by volume and by weight) of the filling material per capsule in the batch is variable to suit an individual patient's needs, and very accurately known. In addition, two or more compatible filler medications may be mixed in the same capsules to suit the specialized needs of a particular user.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: June 7, 2005
    Inventor: John Nelson
  • Patent number: 6866075
    Abstract: Apparatus for dispersing particles flowing from an orifice comprising a deflecting surface disposed relative to the orifice, wherein the deflecting surface is fixed relative to the orifice, whereby particles flowing from the orifice can impinge upon and can be dispersed by the deflecting surface, wherein the orifice is one of a plurality of orifices disposed in a wall of a conduit, and wherein the conduit has an axis which is oriented between about 45 degrees and about 70 degrees from the vertical such that particles can flow through the conduit and through the orifices by gravity.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: March 15, 2005
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Roger Dean Whitley, Stephen Clyde Tentarelli, David Ross Graham, Craig E. Steigerwalt, Luigi Depari
  • Patent number: 6689961
    Abstract: A combinational weighing apparatus includes a distributing apparatus for distributing articles fed from above, a plurality of conveyance apparatuses disposed radially below and around the distributing apparatus and a plurality of weighing apparatuses disposed below the respective plurality of conveyance apparatuses, the distributing apparatus including a conical distributing table, a stirring member having one end attached to a rotation shaft arranged at an apex portion of the distributing table and the other end extending slantwise downward to the vicinity of a peripheral edge of the distributing table, and a drive unit for rotating the rotation shaft, in which a gap is provided between a lower side of the stirring member and an upper surface of the distributing table so as to be increased downwards.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: February 10, 2004
    Assignee: Ishida Co., Ltd.
    Inventors: Isao Matsuyama, Shinji Shimokawa, Masahiko Tatsuoka, Takashi Kondo
  • Patent number: 6662830
    Abstract: Sample processing devices with electrophoresis channels and methods of loading the electrophoresis channels with electrophoresis sieving polymer while rotating the sample processing device are disclosed. In some instances, the electrophoresis channels may be arranged radially relative to the axis of rotation of the sample processing device. In other sample processing devices, the electrophoresis channels may be arranged in curved arcs that are concentric about the center of the sample processing device (which preferably corresponds to the axis of rotation).
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: December 16, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: William Bedingham, Raj Rajagopal, Kannan Seshadri
  • Publication number: 20030127152
    Abstract: Sample processing devices with electrophoresis channels and methods of loading the electrophoresis channels with electrophoresis sieving polymer while rotating the sample processing device are disclosed. In some instances, the electrophoresis channels may be arranged radially relative to the axis of rotation of the sample processing device. In other sample processing devices, the electrophoresis channels may be arranged in curved arcs that are concentric about the center of the sample processing device (which preferably corresponds to the axis of rotation).
    Type: Application
    Filed: January 21, 2003
    Publication date: July 10, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: William Bedingham, Raj Rajagopal, Kannan Seshadri
  • Patent number: 6532997
    Abstract: Sample processing devices with electrophoresis channels and methods of loading the electrophoresis channels with electrophoresis sieving polymer while rotating the sample processing device are disclosed. In some instances, the electrophoresis channels may be arranged radially relative to the axis of rotation of the sample processing device. In other sample processing devices, the electrophoresis channels may be arranged in curved arcs that are concentric about the center of the sample processing device (which preferably corresponds to the axis of rotation).
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: March 18, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: William Bedingham, Raj Rajagopal, Kannan Seshadri
  • Patent number: 6523579
    Abstract: A method of manufacturing an ink jet print cartridge is disclosed. The method includes fabricating a vented foam-filled type or a spring-bag type cartridge. The method also includes introducing ink into a reservoir. For a foam-filled cartridge, the method further includes covering orifices of an orifice plate to prevent leakage of ink through the orifices and subjecting the cartridge to a predetermined centrifugal force to force ink into a standpipe chamber to displace air trapped therein. For a spring-bag type cartridge, the method further includes subjecting the cartridge to a predetermined centrifugal force to force ink away from a standpipe chamber to displace air in a reservoir to force the air to collect adjacent a standpipe and priming the cartridge by drawing the air out of the cartridge through orifices of an orifice plate. A print cartridge manufactured according to the above method is also disclosed.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: February 25, 2003
    Assignee: Hewlett-Packard Company
    Inventor: Hing Ching Tham
  • Patent number: 6302162
    Abstract: An installation for the treatment of fluid having a receptacle (1) defining a non-vertical portion of a path for fluid through at least two adjacent masses (A; B; C) of particulate materials, typically different from each other, each mass being in direct contact with its neighbor or neighbors, without the interposition of a separating grid. The installation is particularly useful for the separation or drying of air.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: October 16, 2001
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Jean-Yves Lehman
  • Patent number: 6182711
    Abstract: A multi-station machine for filling storage batteries has an unloading station, a loading station and a filling station. At the unloading station, a filled battery case is removed from a pivotally mounted cradle assembly including an acid container. At the loading station, adjacent the unloading station, the battery case is loaded in the cradle assembly in a vertical orientation and then tilted to and latched in an angular orientation. At the filling station, the battery case and acid container are further tilted to a horizontal orientation, the container is filled with acid and then returned to the tilted and latched orientation. When all of the cradle assemblies are filled with battery cases and acid container are filled with acid, the cradle assemblies, are spun at a speed sufficient to rotate the assemblies to a more tilted orientation to cause centrifugally induced flow of the acid into the battery case while simultaneously unlatching the cradle assemblies.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: February 6, 2001
    Assignee: Delphi Technologies, Inc.
    Inventors: Earl DeWayne Wallace, Clarence Alfred Meadows, Thomas Kent Lacy, Charles Cletis Montgomery
  • Patent number: 6123119
    Abstract: A method for safely, reliably and continuously feeding a liquid specimen such as human blood in one container on a centrifugal rotor into another container on the same rotor without the need to touch the specimen as well as any part of the device while completely preventing contamination due to mixing of microorganisms. A liquid is injected into a pressurizing or a depressurizing container on a rotor from outside to pressurize or depressurize a first container on the rotor, thereby feeding under pressure a specimen in the first container into a second container on the same rotor, or sucking a specimen in the second container into the first container.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: September 26, 2000
    Assignee: Fumiko Uozumi
    Inventor: Akira Okumura
  • Patent number: 6095202
    Abstract: The present invention features a method and apparatus with a rotatable central reservoir and radially extending support arms for packing chromatographic columns at a consistent gradient of particle impact by using centripetal forces to independently accelerate particles comprising a bed material through a filling opening at one end of the column and continuously as they move axially along the length of the column to their packed destination. The method and apparatus are particularly suitable for use in packing capillary columns having an interior diameter of about 500 microns or less.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: August 1, 2000
    Assignee: Research Foundation State University of New York
    Inventors: Luis A. Colon, Adam M. Fermier, Gary R. Sagerman
  • Patent number: 5964259
    Abstract: Particle loader assembly for loading particles into a vessel to form a particle bed comprising inner and outer radially disposed concentric layers of particles the inner layer containing at least one type of particle of different granulometry or composition or both granulometry and composition from a type of particle contained in the outer layer.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: October 12, 1999
    Assignee: Praxair Technology, Inc.
    Inventors: Mark William Ackley, Jeffert John Nowobilski, James Smolarek, James Stanley Schneider
  • Patent number: 5836362
    Abstract: The invention comprises particle loader assembly for loading particles into a vessel to form a particle bed comprising inner and outer radially disposed concentric layers of particles said inner layer containing at least one type of particle of different granulometry or composition or both granulometry and composition from a type of particle contained in said outer layer.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: November 17, 1998
    Assignee: Praxair Technology, Inc.
    Inventors: Mark William Ackley, Jeffert John Nowobilski, James Smolarek, James Stanley Schneider
  • Patent number: 5730192
    Abstract: An apparatus for filling a battery with electrolyte has an electrolyte feeding unit pivotally mounted on a body, an electrolyte filling port slidably installed within each of longitudinal holes of the case receiving unit, and a valve unit for opening the filling nozzle of the electrolyte filling port. A bias member is installed between the shoulder of the filling port and the upper end of the case receiving unit. A filling valve is located at the upper edge of the filling nozzle. When the rotation speed of the body reaches a predetermined speed, the filling port overcomes the biasing force of the bias member and slides down towards the case, so that the filling nozzle is opened. When the rotation speed of the body is less than the predetermined speed, the filling nozzle is closed by the valve. Thus, the electrolyte in the filling port does not leak outside.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: March 24, 1998
    Assignee: Daewoo Electronics Co.,Ltd.
    Inventor: Woo-Jin Park
  • Patent number: 5722467
    Abstract: Free space within a chamber is filled with a flowable material via an opening in a surface of the chamber. A delivery force is used to deliver the flowable material into the chamber via the opening. An outwardly directed force, independent of the delivery force, is applied to draw the flowable material away from the opening. The extent to which the free space within the chamber has been filled is sensed. And the delivering of the flowable material is controlled in response to the sensing. A wall of the chamber defines a longer dimension and a shorter dimension and the opening is in a portion of the wall that defines the longer dimension. The flowable material is delivered into the chamber via the opening in a manner such that, as the flowable material fills the chamber, a surface of the flowable material moves toward the opening along the longer dimension of the chamber.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: March 3, 1998
    Assignee: VLT Corporation
    Inventor: Patrizio Vinciarelli
  • Patent number: 5720324
    Abstract: Free space within a chamber is filled with a flowable material via an opening in a surface of the chamber. A delivery force is used to deliver the flowable material into the chamber via the opening. An outwardly directed force, independent of the delivery force, is applied to draw the flowable material away from the opening. The extent to which the free space within the chamber has been filled is sensed. And the delivering of the flowable material is controlled in response to the sensing. A wall of the chamber defines a longer dimension and a shorter dimension and the opening is in a portion of the wall that defines the longer dimension. The flowable material is delivered into the chamber via the opening in a manner such that, as the flowable material fills the chamber, a surface of the flowable material moves toward the opening along the longer dimension of the chamber.
    Type: Grant
    Filed: January 4, 1996
    Date of Patent: February 24, 1998
    Assignee: VLT Corporation
    Inventor: Patrizio Vinciarelli
  • Patent number: 5651399
    Abstract: A slurry loading apparatus for automatically loading a slurry into a substrate, the substrate having a front surface, a back surface opposite said front surface and an interior with voids between the front and back surfaces, the apparatus including a device for introducing the slurry onto the front surface and into the voids where excess slurry passes through the substrate and exits the back surface, and a device for repeatedly forcing the excess slurry back onto the back surface and into the voids.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: July 29, 1997
    Assignee: Ovonic Battery Company, Inc.
    Inventors: Arthur Holland, Douglas Lilburn, Donn Fillmore, Edward Wood
  • Patent number: 5615717
    Abstract: A method of providing electrolyte to an electrolyte starved battery includes the steps of supplying electrolyte from a source to a dispenser and dispensing the electrolyte from the dispenser in a preplanned sequence to each of a number of electrolyte inputs in the electrolyte starved battery. Related devices for accomplishing such a method are also disclosed.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: April 1, 1997
    Assignee: Dreisbach Electromotive Inc.
    Inventor: Michael C. Cheiky
  • Patent number: 5553643
    Abstract: Apparatus and method for rapidly rotating a small enclosed transparent container and introducing a plurality of visually different materials into the rotating container to produce distinctive multi-aspect designs. The illustrated apparatus includes a support for releasibly holding one of the containers at a time for rotation about an axis, and a drive mechanism for causing the held container to rotate rapidly about that axis. The container has an entrance and the apparatus includes dispensers for selectively and sequentially introducing two or more of the visually different materials in flowable form into the entrance while the container is rotating. The materials have the capacity for maintaining themselves generally separate from the other materials in the rotating container. By way of example, the materials could be sands or gels of different colors or appearances. There may be a plurality of containers with a variety of different shapes.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: September 10, 1996
    Assignee: Hasbro, Inc.
    Inventors: Adolph E. Goldfarb, David A. Jackson, Martin I. Goldfarb, Fred D. Eddins, Linwood E. Doane Jr.
  • Patent number: 5487417
    Abstract: This invention provides an electrolyte injection apparatus capable of injecting an electrolyte accurately into a battery which does not contain an electrolyte yet and in which an electrode group consisting of a laminated structure formed by interposing a separator between positive and negative electrodes is accommodated in a case such that a lamination plane of the electrode group is parallel to the direction of depth of the case.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: January 30, 1996
    Assignee: Toshiba Battery Co., Ltd.
    Inventors: Shigeo Kasahara, Kiyoshi Sueoka, Gen Takayama, Shingo Satoh, Hidemi Houjyou
  • Patent number: 5236021
    Abstract: A powder filling apparatus comprised of a frame means having a cylindrical channel extending therethrough. A cylindrical funnel means is rotatably mounted in the channel, the funnel means having a bore extending therethrough. The bore has an axial section for receiving a flow of powder and an angled section at a preselected angle from the axis for directing the powder flow from the funnel means. A drive means is operatively connected for rotating the funnel means.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: August 17, 1993
    Assignee: General Electric Company
    Inventors: Bernard P. Bewlay, Dennis J. Dalpe, Peter G. Frischmann
  • Patent number: 5095955
    Abstract: To fill receptacles (2) uniformly, without air inclusions and without soiling, the filling material is pressed into the continuously enlarging space between the receptacle bottom and a counter-bottom attached to the end of the filling head (1) facing the receptacle bottom and eccentrically traversed by the outlet opening (17) and at the same time the counter-bottom is rotated relative to the receptacle by the central axis.
    Type: Grant
    Filed: March 21, 1991
    Date of Patent: March 17, 1992
    Assignee: Alcan Deutschland GmbH
    Inventors: Manfred Barnewitz, Hans F. Pingel, Georg Vogt
  • Patent number: 4985143
    Abstract: Column chromatography beds are packed through the application of static force. A slurry of the chromatography bed material and a non-viscous liquid is filled into the column plugged at one end, and allowed to settle. The column is transferred to a centrifuge, and centrifuged for a brief period of time to achieve a predetermined packing level, at a range generally of 100-5,000 gravities. Thereafter, the plug is removed, other fixtures may be secured, and the liquid is allowed to flow out through the bed. This results in an evenly packed bed, with no channeling or preferential flow characteristics.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: January 15, 1991
    Assignee: The University of Maryland
    Inventors: David H. Freeman, Rosalie M. Angeles, Suzanne Keller
  • Patent number: 4874114
    Abstract: A device for dispensing a predetermined quantity of a liquid comprises: a pipette (1) constituted by a rod having a substantially spherical open element at its end, the element having a calibrated internal volume; mechanical device for holding this pipette either in a first position (51) for filling and for calibration purposes, or else in a second position (52) for emptying purposes; and mechanical device for rotating the pipette at high speed.
    Type: Grant
    Filed: November 10, 1988
    Date of Patent: October 17, 1989
    Inventor: Jean Guigan
  • Patent number: 4718288
    Abstract: A method for splitting samples of particulate matter (powders or suspensions), by which a powder or suspension stream of a sample is subdivided several times into subsamples and an analysis sample obtained therefrom, involves forming a powder or suspension stream rotating it centrifugally throwing off the stream and dividing it up several times into subsamples in the tangential throw-off direction and collecting divided subsamples, whereby one or more subsamples may be recycled into the stream of particles. An apparatus for carrying out this method (a sample splitter) comprises a central pipe which is capable of being rotatably driven, to which the powder or suspension is fed in batches, and which has a curved lower discharge end.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: January 12, 1988
    Inventors: Kurt Leschonski, Stephan Rothele
  • Patent number: 4387747
    Abstract: A high-speed rotary filling machine, for filling containers with carbonated beverages or other flowable substances, has a turret (38) mounted on a horizontal axis (31). The containers (30) are carried in radially-extending positions around the circumference of the turret, open ends facing inwards, and are filled by conventional filling valves (43) within the turret. The centrifugal effect of rotating the turret at high speed is utilized to enable filling to take place over an arc of rotation approaching 360.degree.. Spillage problems due to centrifugal effects are avoided by transferring the containers to a linear exit conveyor (58) tangentially at the lowest position (19) of turret rotation, without changing the linear velocity of the container.
    Type: Grant
    Filed: June 17, 1981
    Date of Patent: June 14, 1983
    Assignee: Metal Box Limited
    Inventors: Josef T. Franek, Paul Porucznik, Alan E. Styles
  • Patent number: 4298035
    Abstract: An improved method for measuring and dispensing fractions of a liquid sample in a device which comprises a casing having a vertical axis and containing a central chamber and transparent cells distributed around the chamber. Each cell is connected to the chamber by a closure cup. A capillary constriction separates each pocket from the corresponding cell. The improvement comprises adding polyvinylpyrollidone to the liquid sample.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: November 3, 1981
    Assignee: American Home Products Corporation
    Inventor: Miles G. Hossom
  • Patent number: 4280551
    Abstract: A centrifugal casting apparatus for dentistry comprises a rotating member or platform for the mold having a mold disposed on one side thereof, a rotating member for the crucible movably positioned at the center of revolution of the said rotating member for the mold and provided with a crucible and a melting means, and a driving mechanism therefor, whereby metal for dentistry uses charged into the crucible is heated to be molten, while the mold is caused to rotate about the periphery of the crucible by means of the rotating member for the mold, and, after melting of the metal for dentistry uses is completed, the rotating member for the crucible is brought into engagement with the rotating member for the mold for rotation therewith where the metal in the molten state is cast from the crucible into the mold through impact force produced upon transmission of rotation as well as centrifugal force after initiation of rotation.
    Type: Grant
    Filed: August 9, 1979
    Date of Patent: July 28, 1981
    Inventor: Isao Ohara
  • Patent number: 4267866
    Abstract: The invention relates to a method for filling a capsule under rotation and a machine for carrying out the method. The capsule is rotated at a variable speed during the filling so that the centrifugal force at the inner surface of powder present in the capsule is essentially equal to the gravity. The centrifugal machine comprises a holder for the capsule and a drive structure by which the holder is driven at variable speed. The amount of supplied powder is measured and the speed is controlled in dependence on the output signal generated by the measurement.
    Type: Grant
    Filed: August 31, 1979
    Date of Patent: May 19, 1981
    Assignee: ASEA Aktiebolag
    Inventors: Hans-Gunnar Larsson, Erik Westman
  • Patent number: 4154793
    Abstract: The invention relates to the conditioning of a sample of a liquid for medical analysis. The conditioning device according to the invention, comprises a plurality of calibrated peripheral cells connected to a central receptacle and includes, for each cell, ducts including an air inlet orifice for conveying the sample from the receptacle to said cell to completely fill the cell by centrifuging and an air escape orifice in each cell for the escape of the air contained in said cell closer to the axis of rotation than said inlet orifice and leading into said receptacle, said orifices further being dimensioned so as to retain the liquid contained in each cell after complete filling thereof.
    Type: Grant
    Filed: September 28, 1977
    Date of Patent: May 15, 1979
    Inventor: Jean Guigan
  • Patent number: 4146063
    Abstract: An improved method for the filling of porous tube electrodes for electric accumulator batteries is disclosed. A paste of the active material and a liquid (e.g., water) is formed and a small amount of surplus liquid is added. The tubes are filled with resulting paste by centrifugation with the surplus liquid being removed through the tubes during filling.
    Type: Grant
    Filed: May 17, 1977
    Date of Patent: March 27, 1979
    Assignee: Aktiebolaget Tudor
    Inventor: Rune Karlsson
  • Patent number: 4126043
    Abstract: An amount of liquid is divided into precisely defined aliquots by discharging the liquid by centrifugal force from a single radial opening in a spinning bowl against a circular row of knife-edged partitions defining receptacles therebetween.
    Type: Grant
    Filed: September 7, 1977
    Date of Patent: November 21, 1978
    Assignee: Mettler Instrumente AG
    Inventor: Werner Schurmann
  • Patent number: 4070248
    Abstract: A device for measuring fractions of a liquid sample comprises a casing having a vertical axis and containing a central chamber and transparent cells distributed around the chamber and permanently vented to atmosphere. Each cell is connected to the chamber by a closure cup. A capillary constriction separates each pocket from the corresponding cell. The device may be used for the preparation of antibiograms.
    Type: Grant
    Filed: August 11, 1976
    Date of Patent: January 24, 1978
    Assignee: Intertechnique
    Inventor: Jean-Michel Schmidt
  • Patent number: 4058252
    Abstract: An automatic sample preparation apparatus including a centrifuge apparatus for centrifugally separating the lighter components of a sample mixture from its heavier components and an automatic sample loading apparatus which utilizes centrifugal forces to load the sample into a centrifuge drum through an aperture in the bottom end of the drum. A separation chamber in the drum has a truncated conical interior side wall with a trap or cavity therein ringing the wall. The centrifuge drum is spun to force the heavier components into the cavity while the lighter components are forced up the conical interior side wall portion. Means are provided to remove one or both of the components from the separation chamber while the centrifuge drum is spinning to prevent the sample from pouring out of the drum through the bottom aperture. In one embodiment, one of the components is aspirated from the separation chamber by a vacuum source coupled to the interior of the chamber through the hollow shaft on which the drum is spun.
    Type: Grant
    Filed: October 23, 1975
    Date of Patent: November 15, 1977
    Inventor: Melvin Williams
  • Patent number: 4050484
    Abstract: A device for floating one liquid on top of another for special effects in mixing drinks and the like includes a funnel-like upper cup portion with a large, upper end or opening to receive liquids and a smaller, lower end attached to and surrounding a shaft portion. Relatively small openings are provided between the lower end of the funnel-like cup portion and the shaft portion to allow a liquid to escape from the funnel-like cup portion, at a relatively slow rate, and run down the sides of the shaft. When the lower end of the shaft portion is immersed in another liquid, the liquid flowing down the sides of the shaft will meet and spread out over the surface of the other liquid, if the one liquid is less dense than the other liquid.
    Type: Grant
    Filed: July 22, 1976
    Date of Patent: September 27, 1977
    Inventor: Eugene Danyo
  • Patent number: 4044803
    Abstract: A machine for packaging dehydrated food particles has at least one filling station at which an elongate sleeve is mounted for rotation about a vertical axis. A saucer-shaped plate is mounted horizontally beneath the lower end of said sleeve by an adjustable clamp which secures the plate to the sleeve for rotation therewith, and for axial adjustment toward and away from the lower end of the sleeve. In operation dehydrated particles are fed into the upper end of the sleeve normally to pile up on the plate and to back up into the sleeve to fill its bore. The sleeve and plate are intermittently rotated to cause predetermined quantities of the product to be flung outwardly over the lip of the plate, and to drop through a chute to containers which are advanced one by one past the station. The dehydrated product is therefore not subjected to any compacting during packaging.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: August 30, 1977
    Inventor: Woodrow A. Baker
  • Patent number: 4029133
    Abstract: A process for mechanically emptying powdery substances into a container, while the filling space rotates during the filling step. The invention relates further to a device for carrying out the process. The device has a cover that can be tightly set upon the filling hole of a container and co-rotates therewith during the filling step. The cover is provided with centrally arranged filling and air outlet channels, forming an annular space with the surrounding cover. The cover is provided with means that increases the filling space volume during filling, and reduces the volume of the filling space by the additional volume after the filling process.
    Type: Grant
    Filed: October 17, 1975
    Date of Patent: June 14, 1977
    Assignee: Gericke AG, Maschinenfabrik
    Inventors: Robert Rottermann, Marcel Rottermann
  • Patent number: 4015646
    Abstract: A circular dispensing tray having an upturned peripheral flange is formed with a first plurality of apertures in a central circular area and a second plurality of apertures in a surrounding annular area divided from the central area by an upward step. Each aperture contains a drinking vessel with its rim flush with the surrounding tray. An amount of liquid sufficient to fill all the vessels up to a level just below the rim is poured into the tray flooding the central area vessels; the tray is tilted to allow excess liquid to run over the step and the tray is rotated to fill all the vessels to the same level.
    Type: Grant
    Filed: September 24, 1975
    Date of Patent: April 5, 1977
    Inventor: Edgar W. Borrow
  • Patent number: 4015645
    Abstract: An optical apparatus for determining the level of the contents in a container using a reflected light beam that sweeps across two adjacent photocells while the container is being filled. The light beam is reflected from the surface of the contents in the container so that as the level of the contents varies the reflected light beam correspondingly travels from one photocell to the other. The photocells are electrically connected in opposed relationship and the differential output therefrom is arranged to trigger a relay when the level of the contents reaches a predetermined height.The container is rotated about its vertical axis during filling so that the light reflected from the gradually raising upper surface of the contents is reflected from a rotating annulus of said surface thereby providing more effective detection of the level of a particulate or segmented product in the container.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: April 5, 1977
    Assignee: FMC Corporation
    Inventor: Donald W. Chamberlin