Patents by Inventor Christian V. O'Keefe

Christian V. O'Keefe 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: 11731143
    Abstract: A machine or apparatus featuring a first processor and a second processor. The first processor is configured to receive a mixture of fluid, valuable material and unwanted material and a functionalized polymer coated member configured to attach to the valuable material in an attachment rich environment, and provide an enriched functionalized polymer coated member having the valuable material attached thereto. The second processor is configured to receive a fluid and the enriched functionalized polymer coated member in a release rich environment to release the valuable material, and provide the valuable material released from the enriched functionalized polymer coated member.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: August 22, 2023
    Assignee: CiDRA CORPORATE SERVICES INC.
    Inventors: Paul J. Rothman, Mark R. Fernald, Francis K. Didden, Christian V. O'Keefe, Douglas H. Adamson
  • Patent number: 11260399
    Abstract: A mineral extraction system features at least one hydrocyclone, each having input piping, underflow piping, a cyclone portion and overflow piping; a particle size measurement device arranged on some part of the at least one hydrocyclone and configured to sense particles flowing in a process medium, and providing signaling containing information about the size of the particles in the process medium; and a controller having a signal processor configured to receive the signaling, and determine control signaling to control some part of the mineral extraction system, based upon the signaling received.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: March 1, 2022
    Assignee: CiDRA Corporate Services LLC
    Inventors: Robert J. Maron, Christian V. O'Keefe, Jaime Sepulveda
  • Publication number: 20210379603
    Abstract: An engineered collection medium for use in mineral separation is described. The engineered collection medium has a solid phase body configured with a three-dimensional open-cell structure like foam or sponge to provide collection surfaces. The three-dimensional surface structure is made of a hydrophobic material which is a reaction product of isocyanate and polyol promotes the attraction of mineral particles to the collection surfaces as a hydrophobic foam. The hydrophobic foam can be in the form of a cube, sphere, or sheet and can be used in a filter or conveyor belt in a processor.
    Type: Application
    Filed: February 7, 2019
    Publication date: December 9, 2021
    Inventors: Paul J. ROTHMAN, Mark R. FERNALD, Francis DIDDEN, Christian V. O'KEEFE, Douglas H. ADAMSON, Paul DOLAN, Timothy J. BAILEY, Michael Stephen RYAN, Weiguo HUANG, Kevin Rodney LASSILA, Michael D. COPPOLA, Allison K. GREENE
  • Patent number: 11135597
    Abstract: A synthetic bead for use in mineral separation is described. The synthetic bead has a surface made of a synthetic material such as polymer and the synthetic material is functionalized with molecules having a functional group for attaching mineral particles to the surface in a separation process. The synthetic beads can be placed in flotation cell containing a mixture of water, valuable material and unwanted material or in a pipeline where the mixture is transported from one location to another. The enriched synthetic beads carrying the mineral particles are separated from the unwanted materials in the mixture. The mineral particles are then released from the synthetic beads by means of low pH treatment, ultrasonic agitation, thermal or electromagnetic treatment.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: October 5, 2021
    Assignee: CIDRA CORPORATE SERVICES LLC
    Inventors: Paul J. Rothman, Mark R. Fernald, Francis K. Didden, Christian V. O'Keefe, Douglas H. Adamson
  • Patent number: 11117141
    Abstract: Apparatus for use in, or forming part of, a separation process to be implemented in separation processor technology, the apparatus comprising synthetic bubbles or beads configured with a polymer or polymer-based material functionalized to attach to a valuable material in a mixture so as to form an enriched synthetic bubbles or beads having the valuable material attached thereto, and also configured to be separated from the mixture based at least partly on a difference in a physical property between the enriched synthetic bubbles or beads having the valuable material attached thereto and the mixture.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: September 14, 2021
    Assignee: CIDRA CORPORATE SERVICES INC.
    Inventors: Paul J. Rothman, Mark R. Fernald, Francis K. Didden, Christian V. O'Keefe, Alan D. Kersey, Douglas H. Adamson
  • Patent number: 10835905
    Abstract: An engineered collection medium for use in mineral separation is described. The engineered collection medium has a solid phase body configured with a three-dimensional open-cell structure like foam or sponge to provide collection surfaces. The surfaces are functionalized with a hydrophobic chemical having molecules with a functional group for attaching mineral particles to the collection surfaces. The engineered collection medium can be a foam block, a filter or conveyor belt to be placed in a slurry to collect mineral particles in the slurry. The engineered collection medium carrying the mineral particles is provided to a release apparatus where the mineral particles can be released by using mechanical agitation, sonic agitation and so forth.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: November 17, 2020
    Assignee: CIDRA CORPORATE SERVICES INC.
    Inventors: Paul J. Rothman, Mark R. Fernald, Francis Didden, Christian V. O'Keefe, Douglas H. Adamson, Paul Dolan, Timothy J. Bailey, Michael Ryan
  • Patent number: 10751693
    Abstract: Apparatus or recovering a mineral particle of interest from a slurry in a mineral extraction process, featuring a core or substrate; and multiple layers arranged on the core or substrate, each layer of the multiple layers configured with a respective outer surface having a plurality of molecules attached thereto, the molecules comprising a functional group selected for attracting and attaching one or more mineral particles of interest to the molecules. Each layer is made from a polymer having a thickness of less than or equal to about 125 microns. The polymer is selected from a group consisting of polydimethylsiloxane or dimethyl siloxane.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: August 25, 2020
    Assignee: CiDRA Corporate Service Inc.
    Inventors: Paul J. Rothman, Mark R. Fernald, Christian V. O'Keefe, Douglas H. Adamson
  • Publication number: 20200246806
    Abstract: A mineral extraction system features at least one hydrocyclone, each having input piping, underflow piping, a cyclone portion and overflow piping; a particle size measurement device arranged on some part of the at least one hydrocyclone and configured to sense particles flowing in a process medium, and providing signaling containing information about the size of the particles in the process medium; and a controller having a signal processor configured to receive the signaling, and determine control signaling to control some part of the mineral extraction system, based upon the signaling received.
    Type: Application
    Filed: August 7, 2018
    Publication date: August 6, 2020
    Inventors: Robert J. MARON, Christian V. O'KEEFE, Jaime SEPULVEDA
  • Patent number: 10379071
    Abstract: Apparatus is provided featuring a signal processor or processing module configured to: receive signaling containing information about at least two sensing modalities sensed by a single probe arranged in relation to a multiphase flow or process volume; and determine using a multiple modality tomographic analysis technique information about different fluid layers in the multiphase flow or process volume, based at least partly on the signaling received. The signal processor or processing module may be configured to provide corresponding signaling containing corresponding information about different fluid layers in the multiphase flow or process volume.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: August 13, 2019
    Assignee: CiDRA Corporate Services Inc.
    Inventors: Alan D. Kersey, Christian V. O'Keefe
  • Patent number: 10357782
    Abstract: Apparatus, such as a flotation separation device, features a flotation cell or column configured to receive a mixture of water, valuable material and unwanted material; receive polymer-based materials, including polymer bubbles or beads, configured to attach to the valuable material in the mixture; and provide enriched polymer-based materials, including enriched polymer bubbles or beads, having the valuable material attached thereon.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: July 23, 2019
    Assignee: CiDRA Corporate Services LLC
    Inventors: Paul J. Rothman, Mark R. Fernald, Francis K. Didden, Christian V. O'Keefe, Alan D. Kersey, Douglas H. Adamson
  • Publication number: 20190201914
    Abstract: A synthetic bead for use in mineral separation is described. The synthetic bead has a surface made of a synthetic material such as polymer and the synthetic material is functionalized with molecules having a functional group for attaching mineral particles to the surface in a separation process. The synthetic beads can be placed in flotation cell containing a mixture of water, valuable material and unwanted material or in a pipeline where the mixture is transported from one location to another. The enriched synthetic beads carrying the mineral particles are separated from the unwanted materials in the mixture. The mineral particles are then released from the synthetic beads by means of low pH treatment, ultrasonic agitation, thermal or electromagnetic treatment.
    Type: Application
    Filed: April 12, 2018
    Publication date: July 4, 2019
    Inventors: Paul J. ROTHMAN, Mark R. FERNALD, Francis K. DIDDEN, Christian V. O'KEEFE, Douglas H. ADAMSON
  • Patent number: 10245597
    Abstract: Apparatus is provided featuring a first and second cells. The first cell receives an ore slurry having mineral particles of interest, receives unexpanded polymer microspheres comprising a surface having mineral collector chemistry attached thereto with molecules for attaching the mineral particles of interest, causes the unexpanded polymer microspheres to expand substantially in volume into expanded polymer microspheres having a substantially increased sphere surface area, and provides an expanded polymer microsphere foam layer comprising the expanded polymer microspheres with attached mineral particles of interest. The second cell receives the expanded polymer microsphere foam layer, and causes the expanded polymer microspheres to collapse substantially in volume into collapsed polymer microspheres having a substantially reduced sphere surface area that results in a mechanical shearing off of the attached mineral particles of interest.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: April 2, 2019
    Assignee: CiDRA Corporate Services Inc.
    Inventors: Francis K. Didden, Alan D. Kersey, Michael A. Davis, Paul J. Rothman, Mark R. Fernald, Christian V. O'Keefe, Douglas H. Adamson
  • Publication number: 20180272362
    Abstract: Apparatus features a signal processor or signal processing module configured to: receive signaling containing information about an acoustic noise profile that is directly measured and generated by a slurry hitting a probe configured in a part of a cyclone; and determine corresponding signaling containing information about the status of the part of the cyclone, based upon the signaling received. The signal processor or signal processing module is configured to provide the corresponding signaling, including where the corresponding signaling provided contains information about whether the part of the cyclone is damaged or worn. The part of the cyclone is an apex of the cyclone, and the corresponding signaling contains information about the status of the apex of the cyclone.
    Type: Application
    Filed: January 28, 2016
    Publication date: September 27, 2018
    Inventors: Dylan CIRULIS, Robert J. MARON, Christian V. O'KEEFE, Paul J. ROTHMAN, David V. NEWTON, Joseph MERCURI, Juan F. MEDINA
  • Publication number: 20180200730
    Abstract: Apparatus for use in, or forming part of, a separation process to be implemented in separation processor technology, the apparatus comprising synthetic bubbles or beads configured with a polymer or polymer-based material functionalized to attach to a valuable material in a mixture so as to form an enriched synthetic bubbles or beads having the valuable material attached thereto, and also configured to be separated from the mixture based at least partly on a difference in a physical property between the enriched synthetic bubbles or beads having the valuable material attached thereto and the mixture.
    Type: Application
    Filed: October 26, 2017
    Publication date: July 19, 2018
    Inventors: Paul J. ROTHMAN, Mark R. FERNALD, Francis K. DIDDEN, Christian V. O'KEEFE, Alan D. KERSEY, Douglas H. ADAMSON
  • Patent number: 9981271
    Abstract: A synthetic bead for use in mineral separation is described. The synthetic bead has a surface made of a synthetic material such as polymer and the synthetic material is functionalized with molecules having a functional group for attaching mineral particles to the surface in a separation process. The synthetic beads can be placed in flotation cell containing a mixture of water, valuable material and unwanted material or in a pipeline where the mixture is transported from one location to another. The enriched synthetic beads carrying the mineral particles are separated from the unwanted materials in the mixture. The mineral particles are then released from the synthetic beads by means of low pH treatment, ultrasonic agitation, thermal or electromagnetic treatment.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: May 29, 2018
    Assignee: CiDRA CORPORATE SERVICES LLC
    Inventors: Paul J. Rothman, Mark R. Fernald, Francis K. Didden, Christian V. O'keefe, Douglas H. Adamson
  • Patent number: 9943860
    Abstract: An apparatus and method for collecting mineral particles in the tailings is disclosed. The apparatus may take the form of a filter, a conveyor belt, a collection plate or an impeller configured to contact with tailings of a flotation process, before and/or after the tailings are discharged into a pond. The filter, conveyor belt, collection plate or impeller has a collection area or surface made of, or coated with, a synthetic material having a functional group, e.g., having an ionizing bond to attract the mineral particles of interest. Alternatively, the synthetic material has hydrophobic molecules to render the collection area hydrophobic. When the mineral particles of interest in the tailings are combined with collector molecules, the mineral particles of interest may also become hydrophobic. The hydrophobic mineral particles of interest are attracted to the hydrophobic collection area or surface.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: April 17, 2018
    Assignee: CiDRA Corporate Services Inc.
    Inventors: Paul J. Rothman, Mark R. Fernald, Francis K. Didden, Christian V. O'Keefe, Alan D. Kersey, Douglas H. Adamson
  • Patent number: 9827574
    Abstract: Apparatus for use in, or forming part of, a separation process to be implemented in separation processor technology, the apparatus comprising synthetic bubbles or beads configured with a polymer or polymer-based material functionalized to attach to a valuable material in a mixture so as to form an enriched synthetic bubbles or beads having the valuable material attached thereto, and also configured to be separated from the mixture based at least partly on a difference in a physical property between the enriched synthetic bubbles or beads having the valuable material attached thereto and the mixture.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 28, 2017
    Assignee: CiDRA CORPORATE SERVICES, INC.
    Inventors: Paul J. Rothman, Mark R. Fernald, Francis K. Didden, Christian V. O'Keefe, Alan D. Kersey, Douglas H. Adamson
  • Publication number: 20170232451
    Abstract: An engineered collection medium for use in mineral separation is described. The engineered collection medium has a solid phase body configured with a three-dimensional open-cell structure like foam or sponge to provide collection surfaces. The surfaces are functionalized with a hydrophobic chemical having molecules with a functional group for attaching mineral particles to the collection surfaces. The engineered collection medium can be a foam block, a filter or conveyor belt to be placed in a slurry to collect mineral particles in the slurry. The engineered collection medium carrying the mineral particles is provided to a release apparatus where the mineral particles can be released by using mechanical agitation, sonic agitation and so forth.
    Type: Application
    Filed: January 9, 2017
    Publication date: August 17, 2017
    Inventors: Paul J. ROTHMAN, Mark R. FERNALD, Francis DIDDEN, Christian V. O'KEEFE, Douglas H. ADAMSON, Paul DOLAN, Timothy J. BAILEY, Michael RYAN
  • Patent number: 9645001
    Abstract: Apparatus features a signal processor module that responds to signals containing information about sensed sound propagating through a slurry flowing in part, including overflow pipes, of cyclones operating in parallel on a cyclone battery, and determine corresponding signaling containing information about the performance of individual cyclones based upon the signals received. The signal processor forms part of a non-invasive acoustic-based passive monitoring system having cyclones and sensors attached thereto. The signal processor module provides the corresponding signaling as output or control signaling, e.g., for controlling the cyclone battery.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: May 9, 2017
    Assignee: CiDRA Corporate Services, Inc.
    Inventors: Alex M. Van Der Spek, Robert J. Maron, Paul Joseph Rothman, Christian V. O'Keefe, Douglas H. Loose
  • Publication number: 20170080403
    Abstract: Apparatus or recovering a mineral particle of interest from a slurry in a mineral extraction process, featuring a core or substrate; and multiple layers arranged on the core or substrate, each layer of the multiple layers configured with a respective outer surface having a plurality of molecules attached thereto, the molecules comprising a functional group selected for attracting and attaching one or more mineral particles of interest to the molecules. Each layer is made from a polymer having a thickness of less than or equal to about 125 microns. The polymer is selected from a group consisting of polydimethylsiloxane or dimethyl siloxane.
    Type: Application
    Filed: June 1, 2015
    Publication date: March 23, 2017
    Inventors: Paul J. ROTHMAN, Mark R. FERNALD, Christian V. O'KEEFE, Douglas H. ADAMSON