Patents by Inventor Jon M. McAvoy

Jon M. McAvoy 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).

  • Atomizing apparatus for making polymer and metal powders and whiskers
    Patent number: 6533563
    Abstract: Method for making polymer particulates, such as spherical powder and whiskers, by melting a polymer material under conditions to avoid thermal degradation of the polymer material, atomizing the melt using gas jet means in a manner to form atomized droplets, and cooling the droplets to form polymer particulates, which are collected for further processing. Atomization parameters can be controlled to produce polymer particulates with controlled particle shape, particle size, and particle size distribution. For example, atomization parameters can be controlled to produce spherical polymer powders, polymer whiskers, and combinations of spherical powders and whiskers. Atomizing apparatus also is provided for atoomizing polymer and metallic materials.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: March 18, 2003
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Joshua U. Otaigbe, Jon M. McAvoy, Iver E. Anderson, Jason Ting, Jia Mi, Robert Terpstra
  • Method of making polymer powders and whiskers as well as particulate products of the method and atomizing apparatus
    Patent number: 6171433
    Abstract: Method for making polymer particulates, such as spherical powder and whiskers, by melting a polymer material under conditions to avoid thermal degradation of the polymer material, atomizing the melt using gas jet means in a manner to form atomized droplets, and cooling the droplets to form polymer particulates, which are collected for further processing. Atomization parameters can be controlled to produce polymer particulates with controlled particle shape, particle size, and particle size distribution. For example, atomization parameters can be controlled to produce spherical polymer powders, polymer whiskers, and combinations of spherical powders and whiskers. Atomizing apparatus also is provided for atoomizing polymer and metallic materials.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: January 9, 2001
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Joshua U. Otaigbe, Jon M. McAvoy, Iver E. Anderson, Jason Ting, Jia Mi, Robert Terpstra