Patents by Inventor David Winsness

David Winsness 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).

  • Publication number: 20250145830
    Abstract: A method for making crystalline graphite composite includes the following steps: additives are dry blended with a melt-flowable polylignin to form a blend. The blend is heated to create a melted flowable polylignin with the additives dispersed therein. The melted flowable polylignin is then solidified to a grindable form or to a shaped article of polylignin with dispersed additives, after which sufficient heat is provided to thermoset and carbonize the polylignin with dispersed additives. Additional heat is then provided to graphitize the carbonized polylignin and form a crystalline graphite matrix with uniformly dispersed additives.
    Type: Application
    Filed: January 2, 2025
    Publication date: May 8, 2025
    Inventors: Michael J. Riebel, David Winsness, Milton J. Riebel, Kevin Kreisler
  • Publication number: 20240191143
    Abstract: The present disclosure generally relates to compositions and methods of simultaneously making two unique biointermediates from a single lignocellulosic biomass feedstock, including a hydrophobic biohydrocarbon and a water insoluble hydrophilic cellulosic biopolymer for use in the production of renewable fuels, chemicals, and other carbon neutral materials commonly derived from petroleum and other fossil resources.
    Type: Application
    Filed: July 7, 2023
    Publication date: June 13, 2024
    Inventors: Rahul Bobbili, Kevin Kreisler, Michael J. Riebel, Milton J. Riebel, David Winsness
  • Publication number: 20230113236
    Abstract: A method for making crystalline graphite composite includes the following steps: additives are dry blended with a melt-flowable polylignin to form a blend. The blend is heated to create a melted flowable polylignin with the additives dispersed therein. The melted flowable polylignin is then solidified to a grindable form or to a shaped article of polylignin with dispersed additives, after which sufficient heat is provided to thermoset and carbonize the polylignin with dispersed additives. Additional heat is then provided to graphitize the carbonized polylignin and form a crystalline graphite matrix with uniformly dispersed additives.
    Type: Application
    Filed: September 2, 2022
    Publication date: April 13, 2023
    Inventors: Michael J. Riebel, David Winsness, Milton J. Riebel, Kevin Kreisler
  • Publication number: 20230115052
    Abstract: A method of making black mass from lithium containing batterie includes the steps of closing a chamber enclosing lithium-containing batteries and injecting nitrogen into the chamber to create an atmosphere sufficiently low in oxygen to prevent explosions and burning of the lithium-containing batteries. The lithium-containing batteries are shredded in the nitrogen atmosphere to produce shredded batteries. The shredded batteries are heated in the nitrogen atmosphere to a temperature sufficient to vaporize electrolyte and plastics from the batteries and produce pyrolyzed fragments. Lithium is present in a water-soluble nitrate form within the pyrolyzed fragments. The pyrolyzed fragments are classified to produce a black mass and a remaining metals fraction. The remaining metals fraction can be further classified to recover ferrous metals, light metals, and heavy metals.
    Type: Application
    Filed: September 2, 2022
    Publication date: April 13, 2023
    Inventors: Rahul Bobbili, David Winsness, Milton J. Riebel
  • Publication number: 20110233233
    Abstract: A method and related system blend fuels and dispense a blended fuel to a vehicle at a fueling station. In one aspect, the method comprises selecting the desired proportion of at least one of the fuels available at the service station, blending that fuel with another one available, and delivering the blended fuel to the vehicle. Preferably, the first fuel is a non-renewable, petroleum based one, while the second fuel is a non-petroleum based, renewable one (such as ethanol or biodiesel).
    Type: Application
    Filed: June 10, 2011
    Publication date: September 29, 2011
    Applicant: GS CLEANTECH CORPORATION
    Inventor: David Winsness
  • Publication number: 20090005903
    Abstract: A method and related system blend fuels and dispense a blended fuel to a vehicle at a fueling station. In one aspect, the method comprises selecting the desired proportion of at least one of the fuels available at the service station, blending that fuel with another one available, and delivering the blended fuel to the vehicle. Preferably, the first fuel is a non-renewable, petroleum based one, while the second fuel is a non-petroleum based, renewable one (such as ethanol or biodiesel).
    Type: Application
    Filed: January 29, 2007
    Publication date: January 1, 2009
    Applicant: GS INDUSTRIAL DESIGN, INC.
    Inventor: David Winsness
  • Publication number: 20070238891
    Abstract: A method is provided for recovering oil from stillage including oil resulting from a process used for producing ethanol. In one embodiment, the method includes heating the stillage to a temperature sufficient to at least partially separate, or unbind, the oil therefrom The method further includes recovering the oil from the stillage.
    Type: Application
    Filed: March 20, 2007
    Publication date: October 11, 2007
    Inventors: David Winsness, John Davis, Gregory Barlage, David Cantrell
  • Publication number: 20060041153
    Abstract: In one aspect of the invention, a method recovers oil from a concentrated byproduct, such as evaporated thin stillage formed during a dry milling process used for producing ethanol. The method includes forming a concentrate from the byproduct and recovering oil from the concentrate. The step of forming the concentrate may comprise evaporating the byproduct. Further, the step of separating the oil from the concentrate may comprise using a centrifuge and, in particular, a disk stack centrifuge. Other aspects of the invention include related methods and subsystems for recovering oil from thin stillage.
    Type: Application
    Filed: September 30, 2005
    Publication date: February 23, 2006
    Inventors: David Cantrell, David Winsness
  • Publication number: 20060041152
    Abstract: In one aspect of the invention, a method recovers oil from a concentrated byproduct, such as evaporated thin stillage formed during a dry milling process used for producing ethanol. The method includes forming a concentrate from the byproduct and recovering oil from the concentrate. The step of forming the concentrate may comprise evaporating the byproduct. Further, the step of separating the oil from the concentrate may comprise using a centrifuge and, in particular, a disk stack centrifuge. Other aspects of the invention include related methods and subsystems for recovering oil from thin stillage.
    Type: Application
    Filed: May 5, 2005
    Publication date: February 23, 2006
    Inventors: David Cantrell, David Winsness