Patents by Inventor Richard Clark Powell

Richard Clark Powell 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).

  • Mold for manufacturing a fiber reinforced polymer utility vault lid
    Patent number: 11613052
    Abstract: A method of manufacturing a fiber reinforced composite material lid for an utility vault including mixing an unsaturated polyester thermosetting matrix in to a resin paste, compounding the resin paste into a fiber reinforced composite material, maturing the compounded fiber reinforced composite material, cutting the matured compound into a charge pattern, molding the charge pattern in a mold cavity of a heated mold under low pressure to form the lid and cooling and machining the lid. The mold includes a cavity die and a core die having a shear angle for interfacing the core die within the cavity die and a steam pot for heating the cavity die and the core die, wherein the lid is molded between the cavity die and the core die and removed from the mold by a lid ejection mechanism.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: March 28, 2023
    Assignee: Channell Commercial Corporation
    Inventors: Edward J. Burke, Thomas Atkins, Brian Anthony Beach, Robert Gwillim, John A. Neate, Richard Clark Powell
  • METHOD OF MANUFACTURING A THERMOSET POLYMER UTILITY VAULT LID
    Publication number: 20190176375
    Abstract: A method of manufacturing a fiber reinforced composite material lid for an utility vault including mixing an unsaturated polyester thermosetting matrix in to a resin paste, compounding the resin paste into a fiber reinforced composite material, maturing the compounded fiber reinforced composite material, cutting the matured compound into a charge pattern, molding the charge pattern in a mold cavity of a heated mold under low pressure to form the lid and cooling and machining the lid. The mold includes a cavity die and a core die having a shear angle for interfacing the core die within the cavity die and a steam pot for heating the cavity die and the core die, wherein the lid is molded between the cavity die and the core die and removed from the mold by a lid ejection mechanism.
    Type: Application
    Filed: February 14, 2019
    Publication date: June 13, 2019
    Inventors: Edward J. Burke, Thomas Atkins, Brian Anthony Beach, Robert Gwillim, John A. Neate, Richard Clark Powell