Patents by Inventor Douglas Keith Cornett

Douglas Keith Cornett 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: 11590471
    Abstract: A device for loading pellets into reactor tubes includes a portable loading box with a bottom wall defining an opening, a loading tube projecting downwardly from the opening, and a movable dam for dividing said loading box into separate chambers.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: February 28, 2023
    Assignee: Tubemaster, Inc.
    Inventors: Clifford L Johns, Dennis Patrick McAndrews, Douglas Keith Cornett
  • Publication number: 20210220787
    Abstract: A device for loading pellets into reactor tubes includes a portable loading box with a bottom wall defining an opening, a loading tube projecting downwardly from the opening, and a movable dam for dividing said loading box into separate chambers.
    Type: Application
    Filed: December 14, 2020
    Publication date: July 22, 2021
    Applicant: Tubemaster, Inc.
    Inventors: Clifford L Johns, Dennis Patrick McAndrews, Douglas Keith Cornett
  • Patent number: 10493417
    Abstract: A method for loading pellets into receptacles having an open top end and a bottom end uses a pressurized fluid injected through injector tubing to form virtual blankets at a plurality of elevations inside the receptacle to reduce the acceleration of the falling pellets in order to provide gentle loading of the pellets.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: December 3, 2019
    Assignee: Tubemaster, Inc.
    Inventors: Douglas Keith Cornett, Clifford L Johns, Dennis Patrick McAndrews
  • Publication number: 20180304219
    Abstract: A method for loading pellets into receptacles uses a pressurized fluid to form virtual blankets at a plurality of elevations inside the receptacle to reduce the acceleration of the falling pellets in order to provide gentle loading of the pellets.
    Type: Application
    Filed: April 18, 2018
    Publication date: October 25, 2018
    Applicant: Tubemaster, Inc.
    Inventors: Douglas Keith Cornett, Clifford L. Johns, Dennis Patrick McAndrews