Patents by Inventor David Fred Cantrell

David Fred Cantrell 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).

  • Methods of processing ethanol byproducts and related subsystems
    Patent number: 9212334
    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: Grant
    Filed: April 19, 2012
    Date of Patent: December 15, 2015
    Assignee: GS CLEANTECH CORPORATION
    Inventors: David Fred Cantrell, David J. Winsness
  • Methods of processing ethanol byproducts and related subsystems
    Patent number: 8283484
    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: Grant
    Filed: May 13, 2011
    Date of Patent: October 9, 2012
    Assignee: GS Cleantech Corporation
    Inventors: David Fred Cantrell, David J. Winsness
  • METHODS OF PROCESSING ETHANOL BYPRODUCTS AND RELATED SUBSYSTEMS
    Publication number: 20120205324
    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: April 19, 2012
    Publication date: August 16, 2012
    Applicant: GS CLEANTECH CORPORATION
    Inventors: David Fred Cantrell, David J. Winsness
  • Methods Of Processing Ethanol Byproducts And Related Subsystems
    Publication number: 20110282085
    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 13, 2011
    Publication date: November 17, 2011
    Applicant: GS CLEANTECH CORPORATION
    Inventors: David Fred Cantrell, David J. Winsness
  • Method of processing ethanol byproducts and related subsystems
    Patent number: 8008516
    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: Grant
    Filed: September 30, 2005
    Date of Patent: August 30, 2011
    Inventors: David Fred Cantrell, David J. Winsness
  • Method of recovering oil from thin stillage
    Patent number: 8008517
    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: Grant
    Filed: September 14, 2009
    Date of Patent: August 30, 2011
    Assignee: GS Cleantech Corporation
    Inventors: David Fred Cantrell, David J. Winsness
  • Methods Of Processing Ethanol Byproducts And Related Subsystems
    Publication number: 20100004474
    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 14, 2009
    Publication date: January 7, 2010
    Applicant: GS CLEANTECH CORPORATION
    Inventors: David Fred Cantrell, David J. Winsness
  • Method of freeing the bound oil present in whole stillage and thin stillage
    Patent number: 7608729
    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: Grant
    Filed: March 20, 2007
    Date of Patent: October 27, 2009
    Assignee: GS Cleantech Corporation
    Inventors: David J. Winsness, David Fred Cantrell
  • METHOD OF PROCESSING ETHANOL BYPRODUCTS AND RELATED SUBSYSTEMS
    Publication number: 20090259060
    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: June 1, 2009
    Publication date: October 15, 2009
    Applicant: GS CLEANTECH CORPORATION
    Inventors: David Fred Cantrell, David J. Winsness
  • Method of processing ethanol byproducts and related subsystems
    Patent number: 7601858
    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: Grant
    Filed: May 5, 2005
    Date of Patent: October 13, 2009
    Assignee: GS Cleantech Corporation
    Inventors: David Fred Cantrell, David J. Winsness
  • METHOD OF FREEING THE BOUND OIL PRESENT IN WHOLE STILLAGE AND THIN STILLAGE
    Publication number: 20090250412
    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: June 1, 2009
    Publication date: October 8, 2009
    Applicant: GS CLEANTECH CORPORATION
    Inventors: David J. Winsness, John W. Davis, Gregory Paul Barlage, David Fred Cantrell