Patents by Inventor Douglas J. Johnson

Douglas J. Johnson 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: 11926089
    Abstract: An apparatus is provided for assisting in affixing a screen protector to a display of an electronic device. The apparatus includes a base including a platform configured to support the electronic device. The apparatus includes a lid configured to cover at least a portion of the base and the supported electronic device. The lid includes an aperture.
    Type: Grant
    Filed: May 9, 2023
    Date of Patent: March 12, 2024
    Assignee: Otter Products, LLC
    Inventors: Richard W. Vinson, Zachariah J. Pickett, John P. Fitzgerald, Douglas A. Kempel, Jamie L. Johnson, Ross V. Bulkley, Adam J. Havens, Grady E. Barfoot
  • Patent number: 11493279
    Abstract: A thermal management system includes a slurry generator, an injector pump coupled to the slurry generator, a heat exchanger reactor coupled to the injector pump, wherein the heat exchanger reactor is adapted to subject a thermally expendable heat absorption material to a temperature above 60° C. and a pressure below 3 kPa, and wherein the expendable heat absorption material endothermically decomposes into a gaseous by-product. A vapor cycle system is coupled to the heat exchanger reactor and is operatively connected to a thermal load. A thermal energy storage system may be coupled to the vapor cycle system and the thermal load. The thermal energy storage system may isolate the heat exchanger reactor from thermal load transients of the thermal load.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: November 8, 2022
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Douglas J. Johnson, Nicholas P. Niedbalski, Jamie S. Ervin, Soumya S. Patnaik
  • Patent number: 11150029
    Abstract: A thermal management system includes a slurry generator, an injector pump coupled to the slurry generator, a heat exchanger reactor coupled to the injector pump, wherein the heat exchanger reactor is adapted to subject a thermally expendable heat absorption material to a temperature above 60° C. and a pressure below 3 kPa, and wherein the expendable heat absorption material endothermically decomposes into a gaseous by-product. A vapor cycle system is coupled to the heat exchanger reactor and is operatively connected to a thermal load. A thermal energy storage system may be coupled to the vapor cycle system and the thermal load. The thermal energy storage system may isolate the heat exchanger reactor from thermal load transients of the thermal load.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: October 19, 2021
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Douglas J. Johnson, Nicholas P. Niedbalski, Jamie S. Ervin, Soumya S. Patnaik
  • Publication number: 20210190434
    Abstract: A thermal management system includes a slurry generator, an injector pump coupled to the slurry generator, a heat exchanger reactor coupled to the injector pump, wherein the heat exchanger reactor is adapted to subject a thermally expendable heat absorption material to a temperature above 60° C. and a pressure below 3 kPa, and wherein the expendable heat absorption material endothermically decomposes into a gaseous by-product. A vapor cycle system is coupled to the heat exchanger reactor and is operatively connected to a thermal load. A thermal energy storage system may be coupled to the vapor cycle system and the thermal load. The thermal energy storage system may isolate the heat exchanger reactor from thermal load transients of the thermal load.
    Type: Application
    Filed: March 9, 2021
    Publication date: June 24, 2021
    Inventors: Douglas J. Johnson, Nicholas P. Niedbalski, Jamie S. Ervin, Soumya S. Patnaik
  • Patent number: 10578369
    Abstract: A thermal management system includes a slurry generator, an injector pump coupled to the slurry generator, a heat exchanger reactor coupled to the injector pump, wherein the heat exchanger reactor is adapted to subject a thermally expendable heat absorption material to a temperature above 60° C. and a pressure below 3 kPa, and wherein the expendable heat absorption material endothermically decomposes into a gaseous by-product. A vapor cycle system is coupled to the heat exchanger reactor and is operatively connected to a thermal load. A thermal energy storage system may be coupled to the vapor cycle system and the thermal load. The thermal energy storage system may isolate the heat exchanger reactor from thermal load transients of the thermal load.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: March 3, 2020
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Douglas J. Johnson, Nicholas P. Niedbalski, Jamie S. Ervin, Soumya S. Patnaik
  • Patent number: 4579071
    Abstract: Packer wheel assemblies attached to earthworking tools of a field cultivator compact soil about seeds dispensed into the soil with an air planter. Each packer wheel assembly has a body adjustably mounted on the shank of each tool and an arm pivotally connected to the body. Ground engaging wheels are rotatably mounted on the arm. A coil spring connected to the arm biases the wheels downwardly into engagement with the soil.
    Type: Grant
    Filed: April 18, 1984
    Date of Patent: April 1, 1986
    Inventor: Douglas J. Johnson
  • Patent number: 4414701
    Abstract: A device for cleaning a hose coupling having external screw threads and an adjacent concentric, axially disposed face, the device having an externally graspable tubular element provided toward one end with internal, interrupted screw threads mating with the screw threads of the coupling and having an extension mounted on the tubular element for rotation relative to such element about the axis of its screw threads, the extension having a graspable portion projecting from the other end of the tubular element and a portion extended within the tubular element from such end and bearing a diametrically extended edge disposed for cleaning the face of the coupling when the tubular element has been screwed onto the coupling to clean the coupling screw threads with the interrupted screw threads.
    Type: Grant
    Filed: July 19, 1982
    Date of Patent: November 15, 1983
    Inventor: Douglas J. Johnson