Patents by Inventor Douglas D. Renyer

Douglas D. Renyer 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).

  • Method and apparatus for producing a pre-gelled starch product and normally sticky extrudates with minimal or no surfactant
    Patent number: 6422135
    Abstract: An improved low shear extrusion and dehydrating apparatus (10) and method is provided for the continuous extrusion of various starting materials (e.g., starch-bearing grains or starch fractions thereof, proteinaceous materials and/or nutraceuticals) to yield improved products, especially cold water swelling or soluble starch products. The invention is also useful for forming pre-gelled starch products and for processing starch-bearing materials using little or no surfactant. The apparatus (10) preferably includes an elongated extruder (18) together with a tubular die assembly (20) coupled to the outlet of the extruder barrel (32), wherein the volumetric ratio of the die assembly (20) to the free volume of the extruder (18) is at least about 2, and the ratio of die assembly retention time to the extruder retention time is at least about 5.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: July 23, 2002
    Assignee: Wenger Manufacturing, Inc.
    Inventors: Gordon R. Huber, Bradley S. Strahm, Brian S. Plattner, Douglas D. Renyer, Robert D. Sunderland
  • Method and apparatus for producing a pre-gelled starch product and normally sticky extrudates with minimal or no surfactant
    Patent number: 6415708
    Abstract: An improved low shear extrusion and dehydrating apparatus (10) and method is provided for the continuous extrusion of various starting materials (e.g., starch-bearing grains or starch fractions thereof, proteinaceous materials and/or nutraceuticals) to yield improved products, especially cold water swelling or soluble starch products. The invention is also useful for forming pre-gelled starch products and for processing starch-bearing materials using little or no surfactant. The apparatus (10) preferably includes an elongated extruder (18) together with a tubular die assembly (20) coupled to the outlet of the extruder barrel (32), wherein the volumetric ratio of the die assembly (20) to the free volume of the extruder (18) is at least about 2, and the ratio of die assembly retention time to the extruder retention time is at least about 5.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: July 9, 2002
    Assignee: Wenger Manufacturing, Inc.
    Inventors: Gordon R. Huber, Bradley S. Strahm, Brian S. Plattner, Douglas D. Renyer, Robert D. Sunderland
  • Method and apparatus for producing a pre-gelled starch product and normally sticky extrudates with minimal or no surfactant
    Patent number: 6387429
    Abstract: An improved low shear extrusion and dehydrating apparatus (10) and method is provided for the continuous extrusion of various starting materials (e.g., starch-bearing grains or starch fractions thereof, proteinaceous materials and/or nutraceuticals) to yield improved products, especially cold water swelling or soluble starch products. The invention is also useful for forming pre-gelled starch products and for processing starch-bearing materials using little or no surfactant. The apparatus (10) preferably includes an elongated extruder (18) together with a tubular die assembly (20) coupled to the outlet of the extruder barrel (32), wherein the volumetric ratio of the die assembly (20) to the free volume of the extruder (18) is at least about 2, and the ratio of die assembly retention time to the extruder retention time is at least about 5.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: May 14, 2002
    Assignee: Wenger Manufacturing, Inc.
    Inventors: Gordon R. Huber, Bradley S. Strahm, Brian S. Plattner, Douglas D. Renyer, Robert D. Sunderland
  • Method and apparatus for producing a pre-gelled starch product and normally sticky extrudates with minimal or no surfactant
    Patent number: 6383545
    Abstract: An improved low shear extrusion and dehydrating apparatus (10) and method is provided for the continuous extrusion of various starting materials (e.g., starch-bearing grains or starch fractions thereof, proteinaceous materials and/or nutraceuticals) to yield improved products, especially cold water swelling or soluble starch products. The invention is also useful for forming pre-gelled starch products and for processing starch-bearing materials using little or no surfactant. The apparatus (10) preferably includes an elongated extruder (18) together with a tubular die assembly (20) coupled to the outlet of the extruder barrel (32), wherein the volumetric ratio of the die assembly (20) to the free volume of the extruder (18) is at least about 2, and the ratio of die assembly retention time to the extruder retention time is at least about 5.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: May 7, 2002
    Assignee: Wenger Manufacturing, Inc.
    Inventors: Gordon R. Huber, Bradley S. Strahm, Brian S. Plattner, Douglas D. Renyer, Robert D. Sunderland
  • Method and apparatus for producing a pre-gelled starch product and normally sticky extrudates with minimal or no surfactant
    Publication number: 20010015138
    Abstract: An improved low shear extrusion and dehydrating apparatus (10) and method is provided for the continuous extrusion of various starting materials (e.g., starch-bearing grains or starch fractions thereof, proteinaceous materials and/or nutraceuticals) to yield improved products, especially cold water swelling or soluble starch products. The invention is also useful for forming pre-gelled starch products and for processing starch-bearing materials using little or no surfactant. The apparatus (10) preferably includes an elongated extruder (18) together with a tubular die assembly (20) coupled to the outlet of the extruder barrel (32), wherein the volumetric ratio of the die assembly (20) to the free volume of the extruder (18) is at least about 2, and the ratio of die assembly retention time to the extruder retention time is at least about 5.
    Type: Application
    Filed: January 11, 2001
    Publication date: August 23, 2001
    Inventors: Gordon R. Huber, Bradley S. Strahm, Brian S. Plattner, Douglas D. Renyer, Robert D. Sunderland
  • Method and apparatus for producing a pre-gelled starch product and normally sticky extrudates with minimal or no surfactant
    Patent number: 6247394
    Abstract: An improved low shear extrusion and dehydrating apparatus (10) is provided for the continuous extrusion of various starting materials (e.g., starch-bearing grains or starch fractions thereof, proteinaceous materials and/or nutraceuticals) to yield improved products, especially cold water swelling or soluble starch products. The invention is also useful for forming pre-gelled starch products and for processing starch-bearing materials using little or no surfactant. The apparatus (10) preferably includes an elongated extruder (18) together with a tubular die assembly (20) coupled to the outlet of the extruder barrel (32), wherein the volumetric ratio of the die assembly (20) to the free volume of the extruder (18) is from about 3-20, and the ratio of die assembly retention time to the extruder retention time is at least about 5.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: June 19, 2001
    Assignee: Wenger Manufacturing, Inc.
    Inventors: Gordon R. Huber, Bradley S. Strahm, Brian S. Plattner, Douglas D. Renyer, Robert D. Sunderland