Patents by Inventor Keith Plimpton

Keith Plimpton 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).

  • Hybrid light-curing composition
    Patent number: 11897978
    Abstract: In an aspect, a curable composition comprises an acid catalyzed urethane (meth)acrylate oligomer comprising an acid catalyst; a cyanoacrylate monomer; a metallocene compound; a free radical polymerization inhibitor; and an acidic anionic polymerization inhibitor. In yet another aspect, a method of making a cured composition comprises forming the curable composition; and curing the curable composition by exposing it to light to form the cured composition.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: February 13, 2024
    Assignee: DYMAX CORPORATION
    Inventors: Ahmet Nebioglu, Aysegul Kascatan Nebioglu, Sushanta Das, Keith Plimpton
  • Method of filling cooling holes in an airfoil component
    Patent number: 11878451
    Abstract: In an aspect, a method of filling a plurality of cooling holes in an airfoil component, the method comprises injecting a curable composition into a fill channel such that the curable composition flows through the fill channel to the plurality of cooling holes; forming a plurality of beads of the curable composition on a surface of the component over the plurality of cooling holes; directing a radiation to the respective beads in directions parallel to the respective central axes of the cooling holes associated with the respective beads to cure curable composition of the respective beads; and heating the component to cure the curable composition located in the fill channel.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: January 23, 2024
    Assignee: DYMAX
    Inventors: Richard Levesque, Gregory Arcangeli, Keith Plimpton, Eric Wilmot, Michael Cunningham, Virginia P. Hogan
  • HYBRID LIGHT-CURING COMPOSITION
    Publication number: 20210301045
    Abstract: In an aspect, a curable composition comprises an acid catalyzed urethane (meth)acrylate oligomer comprising an acid catalyst; a cyanoacrylate monomer; a metallocene compound; a free radical polymerization inhibitor; and an acidic anionic polymerization inhibitor. In yet another aspect, a method of making a cured composition comprises forming the curable composition; and curing the curable composition by exposing it to light to form the cured composition.
    Type: Application
    Filed: March 24, 2021
    Publication date: September 30, 2021
    Inventors: Ahmet Nebioglu, Aysegul Kascatan Nebioglu, Sushanta Das, Keith Plimpton
  • METHOD OF FILLING COOLING HOLES IN AN AIRFOIL COMPONENT
    Publication number: 20200353657
    Abstract: In an aspect, a method of filling a plurality of cooling holes in an airfoil component, the method comprises injecting a curable composition into a fill channel such that the curable composition flows through the fill channel to the plurality of cooling holes; forming a plurality of beads of the curable composition on a surface of the component over the plurality of cooling holes; directing a radiation to the respective beads in directions parallel to the respective central axes of the cooling holes associated with the respective beads to cure curable composition of the respective beads; and heating the component to cure the curable composition located in the fill channel.
    Type: Application
    Filed: February 21, 2020
    Publication date: November 12, 2020
    Inventors: Richard Levesque, Gregory Arcangeli, Keith Plimpton, Eric Wilmot, Michael Cunningham, Virginia P. Hogan