Patents by Inventor Mark B. Dockrill

Mark B. Dockrill 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).

  • Loose fill insulation product comprising mineral wool nodules
    Patent number: 5035936
    Abstract: A nodulizing machine for use in an apparatus for making loose fill insulation from mineral fibers comprises an input portal, a conduit containing a plurality of blades and an output portal. Apparatus for making loose fill insulation from mineral fibers comprises a duct extending from a source of the mineral fibers to the nodulizing machine of the present invention. The apparatus includes flow rate control means to control the flow rate of air and mineral fibers in the apparatus. A process for making loose fill insulation from mineral fibers in association with the apparatus of the invention is also discussed.
    Type: Grant
    Filed: July 10, 1990
    Date of Patent: July 30, 1991
    Assignee: Fiberglas Canada Inc.
    Inventors: Mark B. Dockrill, John Buckham, Anthony P. Shen
  • Mineral fiber nodules and method of making same
    Patent number: 4997681
    Abstract: A nodulizing machine for use in an apparatus for making loose fill insulation from mineral fibers comprises an input portal, a conduit containing a plurality of blades and an output portal. Apparatus for making loose fill insulation from mineral fibers comprises a duct extending from a source of the mineral fibers to the nodulizing machine of the present invention. The apparatus includes flow rate control means to control the flow rate of air and mineral fibers in the apparatus. A process for making loose fill insulation from mineral fibers in association with the apparatus of the invention is also disclosed.
    Type: Grant
    Filed: February 8, 1989
    Date of Patent: March 5, 1991
    Assignee: Fiberglas Canada Inc.
    Inventors: Mark B. Dockrill, John Buckham, Anthony P. Shen