Patents by Inventor Eric S. Yan

Eric S. Yan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10478830
    Abstract: What is claimed is a flotation separation system for partitioning a slurry. The slurry includes a hydrophobic species that can adhere to gas bubbles that form within the slurry. The flotation separation system includes a flotation separation cell. The flotation separation cell has a sparger unit and a separation tank. The separation tank is constructed to allow the bubble dispersion to form a froth at the top of the slurry contained in the separation tank. The sparger unit includes a slurry inlet, a slurry outlet, a sparging mechanism, a high shear element, and a gas inlet.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: November 19, 2019
    Assignee: Eriez Manufacturing Co.
    Inventors: Michael J. Mankosa, Jaisen Kohmuench, Eric S. Yan, Gerald H. Luttrell
  • Patent number: 10052637
    Abstract: What is presented is a material processing system for processing tailings discharged from an ore processing system. The tailings comprise coarse waste rock, the fine waste rock, coarse valuable product, and the fine valuable product. The material processing system comprises a classification element, a coarse flotation element, and a fines flotation element arranged to separate the coarse valuable product, the coarse waste rock, the fine valuable product, and the fine waste rock. The classification element separates the coarse waste rock and/or the coarse valuable product from the fine waste rock and/or the fine valuable product. The coarse flotation element separates the coarse waste rock from the coarse valuable product, the fine waste rock, and/or the fine valuable product. The fines flotation element separates the fine valuable product from the coarse waste rock, the fine waste rock, and/or the coarse valuable product.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: August 21, 2018
    Assignee: Eriez Manufacturing Co.
    Inventors: Michael J. Mankosa, Jaisen N. Kohmuench, Eric S. Yan, Reginaldo Sérgio Liberato
  • Publication number: 20180050346
    Abstract: A system for concentrating particulate mixtures of hydrophobic and hydrophilic material in a fluid medium is presented. The system comprises a separation chamber comprising three or more processing compartments in series. Each processing compartment comprises a manifold for the introduction of teeter water that comprises a mixture of water and air bubbles, suspended solids that form a fluidized bed that is created by the upward movement of the teeter water through the suspended solids; and each processing compartment is independently operable. An overflow launder is located above the separation chamber and a dewatering compartment is located beneath the separation chamber.
    Type: Application
    Filed: December 17, 2015
    Publication date: February 22, 2018
    Applicant: Eriez Manufacturing Co.
    Inventors: Michael J. MANKOSA, Jaisen N. KOHMUENCH, Eric S. YAN
  • Publication number: 20160136657
    Abstract: A separation system is presented that partitions a slurry containing a plurality of particles that are influenced by a fluidization flow (which comprises teeter water and gas bubbles) and a fluidized bed. The separation system comprises a separation tank, a slurry feed distributor, a fluidization flow manifold and a gas introduction system. All of these components are arranged to create the fluidized bed in the separation tank by introducing the slurry through the slurry feed distributor and allowing the slurry to interact with the fluidization flow that enters the separation tank from the fluidization flow manifold. The gas introduction system is configured to optimize the gas bubble size distribution in the fluidization flow. The gas introduction system comprises a gas introduction conduit and a bypass conduit. The gas introduction system can be adjusted by modulating the flow of teeter water through the gas introduction conduit.
    Type: Application
    Filed: January 27, 2016
    Publication date: May 19, 2016
    Applicant: Eriez Manufacturing Co.
    Inventors: Michael J. Mankosa, Jaisen N. Kohmuench, Eric S. Yan
  • Patent number: 9278360
    Abstract: A separation system is presented that partitions a slurry containing a plurality of particles that are influenced by a fluidization flow (which comprises teeter water and gas bubbles) and a fluidized bed. The separation system comprises a separation tank, a slurry feed distributor, a fluidization flow manifold and a gas introduction system. All of these components are arranged to create the fluidized bed in the separation tank by introducing the slurry through the slurry feed distributor and allowing the slurry to interact with the fluidization flow that enters the separation tank from the fluidization flow manifold. The gas introduction system is configured to optimize the gas bubble size distribution in the fluidization flow. The gas introduction system comprises a gas introduction conduit and a bypass conduit. The gas introduction system can be adjusted by modulating the flow of teeter water through the gas introduction conduit.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: March 8, 2016
    Assignee: Eriez Manufacturing Co.
    Inventors: Michael J. Mankosa, Jaisen N. Kohmuench, Eric S. Yan
  • Publication number: 20150108044
    Abstract: What is claimed is a flotation separation system for partitioning a slurry. The slurry includes a hydrophobic species that can adhere to gas bubbles that form within the slurry. The flotation separation system includes a flotation separation cell. The flotation separation cell has a sparger unit and a separation tank. The separation tank is constructed to allow the bubble dispersion to form a froth at the top of the slurry contained in the separation tank. The sparger unit includes a slurry inlet, a slurry outlet, a sparging mechanism, a high shear element, and a gas inlet.
    Type: Application
    Filed: December 31, 2014
    Publication date: April 23, 2015
    Inventors: Michael J. Mankosa, Jaisen Kohmuench, Eric S. Yan, Gerald H. Luttrell
  • Publication number: 20150108045
    Abstract: A separation system is presented that partitions a slurry containing a plurality of particles that are influenced by a fluidization flow (which comprises teeter water and gas bubbles) and a fluidized bed. The separation system comprises a separation tank, a slurry feed distributor, a fluidization flow manifold and a gas introduction system. All of these components are arranged to create the fluidized bed in the separation tank by introducing the slurry through the slurry feed distributor and allowing the slurry to interact with the fluidization flow that enters the separation tank from the fluidization flow manifold. The gas introduction system is configured to optimize the gas bubble size distribution in the fluidization flow. The gas introduction system comprises a gas introduction conduit and a bypass conduit. The gas introduction system can be adjusted by modulating the flow of teeter water through the gas introduction conduit.
    Type: Application
    Filed: October 17, 2013
    Publication date: April 23, 2015
    Applicant: Eriez Manufacturing Co.,
    Inventors: Michael J. Mankosa, Jaisen N. Kohmuench, Eric S. Yan
  • Patent number: 8960443
    Abstract: A flotation separation system is provided for partitioning a slurry that includes a hydrophobic species which can adhere to gas bubbles formed in the slurry. The flotation separation system comprises a flotation separation cell that includes a sparger unit and a separation tank. The sparger unit has a slurry inlet for receiving slurry and a gas inlet to receive gas with at least enough pressure to allow bubbles to form in the slurry within the sparger unit. The sparger unit includes a sparging mechanism constructed to disperse gas bubbles within the slurry. The sparging mechanism sparges the gas bubbles to form a bubble dispersion so as to cause adhesion of the hydrophobic species to the gas bubbles substantially within the sparger unit while causing a pressure drop of about 10 psig or less across the sparging mechanism. The sparger unit includes a slurry outlet to discharge the slurry and the bubble dispersion into the separation tank.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: February 24, 2015
    Assignee: Eriez Manufacturing Co.
    Inventors: Michael J. Mankosa, Jaisen Kohmuench, Eric S. Yan, Gerald H. Luttrell
  • Patent number: 7973258
    Abstract: A lifting electrode for a high-tension electrostatic separator. The high tension electrostatic separator having a rotating drum that is connected to ground and an ionizing electrode that generates a corona discharge of charged ions. The lifting electrode comprising a composite of a non-conductive polymer impregnated with conductive particles.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: July 5, 2011
    Assignee: Eriez Manufacturing Co.
    Inventors: Eric S. Yan, Michael Mankosa, Jaisen Kohmuench
  • Publication number: 20090194464
    Abstract: A lifting electrode for a high-tension electrostatic separator. The high tension electrostatic separator having a rotating drum that is connected to ground and an ionizing electrode that generates a corona discharge of charged ions. The lifting electrode comprising a composite of a non-conductive polymer impregnated with conductive particles.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 6, 2009
    Inventors: Eric S. Yan, Michael Mankosa, Jaisen Kohmuench
  • Publication number: 20080251427
    Abstract: A flotation separation system is provided for partitioning a slurry that includes a hydrophobic species which can adhere to gas bubbles formed in the slurry. The flotation separation system comprises a flotation separation cell that includes a sparger unit and a separation tank. The sparger unit has a slurry inlet for receiving slurry and a gas inlet to receive gas with at least enough pressure to allow bubbles to form in the slurry within the sparger unit. The sparger unit includes a sparging mechanism constructed to disperse gas bubbles within the slurry. The sparging mechanism sparges the gas bubbles to form a bubble dispersion so as to cause adhesion of the hydrophobic species to the gas bubbles substantially within the sparger unit while causing a pressure drop of about 10 psig or less across the sparging mechanism. The sparger unit includes a slurry outlet to discharge the slurry and the bubble dispersion into the separation tank.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 16, 2008
    Inventors: Michael J. Mankosa, Jaisen Kohmuench, Eric S. Yan, Gerald H. Luttrell
  • Patent number: 7045734
    Abstract: A D.C. voltage altering device includes at least one spark induction power conditioner including a first electrode connectable to a high voltage D.C. power source and a second electrode spaced from the first electrode and forming a discharging gap therebetween. The second electrode is connectable to a predetermined section of a physical separator and at least one of the electrodes is selectively positionable for altering spatial distance between same. The power conditioner induces a predetermined large amplitude, high frequency current ripple to the second electrode for creating a fluctuating voltage and fluctuating electrostatic field and maintaining continuous current flow through the gap without reversal of polarity. The spark induction power conditioner further includes a dielectric base for housing the electrodes and a plurality of fastening members threadably positionable through the base and engageable with the electrodes so that the discharging gap between the electrodes can be selectively adjusted.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: May 16, 2006
    Assignee: Outokumpu Oyj
    Inventors: Eric S. Yan, Thomas J. Grey
  • Patent number: 6951992
    Abstract: A corona and static electrode assembly is attachable to a frame of an existing electrostatic separator and includes a pair of oppositely spaced end panels and an elongate corona support member disposed inwardly of and supported by the respective end panels. The corona support member is preferably formed from a single piece of rigid material and has a substantially L-shape for directing an electrostatic field intensity towards the outer surface of a rotating drum. A pair of spaced spacers are connected to and laterally extend from the corona support member and an elongate conductive wire extends between the pair of spacers. The wire is preferably supported between the spacers and threaded bolts passing therethrough, respectively, can adjust its tension. A plurality of elongate static electrodes are spaced from the wire and are connected between the pair of end panels.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: October 4, 2005
    Assignee: Outokumpu Oyj
    Inventors: Eric S. Yan, Kevin R. McHenry
  • Patent number: 6797908
    Abstract: The electrostatic classifier and separator is supported by a housing and includes a corona classifier section for classifying particulate materials according to size. Corona element supplies mobile ions for bombarding particulate materials dropping down a passageway from a reservoir. A splitter and screen may be included in the passageway to direct particulate materials into respective fractions. First separator section receives fine to middle size fractions and second separator section receives middle to coarse size fractions. A support frame having adjustable slots supports a plurality of static electrodes. Corona element for emitting a corona charge is spaced generally in a first quadrant of first separator section. A rotatable brush and an alternating current wiper may be included for removing fine to middle size nonconductive fractions from first separator section.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: September 28, 2004
    Assignee: Outokumpu Oyj
    Inventors: Eric S. Yan, Thomas J. Grey, Kevin R. McHenry
  • Publication number: 20030192814
    Abstract: A corona and static electrode assembly is attachable to a frame of an existing electrostatic separator and includes a pair of oppositely spaced end panels and an elongate corona support member disposed inwardly of and supported by the respective end panels. The corona support member is preferably formed from a single piece of rigid material and has a substantially L-shape for directing an electrostatic field intensity towards the outer surface of a rotating drum. A pair of spaced spacers are connected to and laterally extend from the corona support member and an elongate conductive wire extends between the pair of spacers. The wire is preferably supported between the spacers and threaded bolts passing therethrough, respectively, can adjust its tension. A plurality of elongate static electrodes are spaced from the wire and are connected between the pair of end panels.
    Type: Application
    Filed: February 27, 2003
    Publication date: October 16, 2003
    Applicant: Outokumpu Oyj
    Inventors: Eric S. Yan, Kevin R. McHenry
  • Publication number: 20030192813
    Abstract: The electrostatic classifier and separator is supported by a housing and includes a corona classifier section for classifying particulate materials according to size. Corona means supplies mobile ions for bombarding particulate materials dropping down a passageway from a reservoir. A splitter and screen may be included in the passageway to direct particulate materials into respective fractions. First separator section receives fine to middle size fractions and second separator section receives middle to coarse size fractions. A support frame having adjustable slots supports a plurality of static electrodes. Corona means for emitting a corona charge is spaced generally in a first quadrant of first separator section. A rotatable brush and an alternating current wiper may be included for removing fine to middle size nonconductive fractions from first separator section.
    Type: Application
    Filed: April 10, 2002
    Publication date: October 16, 2003
    Inventors: Eric S. Yan, Thomas J. Grey, Kevin R. McHenry
  • Patent number: 6329623
    Abstract: This invention relates to an apparatus and method for electrostatically separating particles having different electrostatic properties. The apparatus involves two thin box-shaped electrodes facing each other as mirror-images and charged with a voltage field causing the opposing electrodes to assume opposite charges, and then passing a mixture of particles through the field so as to make the particles travel toward the respective electrodes through a perforated plate or screen and to a solid back plate and then to fall by gravity through a splitter adjusted to separate particles attracted by one charge from particles attracted by another charge. A vibrator is attached to each electrode, which is isolated for movement by spaced vibration isolators to shake off any particles stuck to the electrodes.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: December 11, 2001
    Assignee: Outokumpu Oyj
    Inventors: Eric S. Yan, Thomas J. Grey, Timo U. Niitti
  • Patent number: 6320148
    Abstract: A method of separating particulate materials of different properties has been developed. It consists of feeding a mixture of dry, powdered materials to one end of the surface of a planar electrode, which is vibrating to move the particles forward. At least one type of the particulate materials acquires a charge via conduction or triboelectrification. Those particles that acquire charges of the same sign as that of the planar electrode are lifted and collected at the V-shaped counter electrodes installed above. The new separation method is particularly useful for removing unburned carbons from fly ash and any other conducting materials from nonconducting ones.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: November 20, 2001
    Inventors: Roe-Hoan Yoon, Oh-Hyung Han, Eric S. Yan, Byung-Wook Park