Patents by Inventor David Wayne Donnick

David Wayne Donnick 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).

  • Variable-orifice prill plate
    Patent number: 8329073
    Abstract: Prill heads having prilling assemblies that include adjustable openings. Prilling methods using the prilling assemblies can allow for the size of the openings to be varied during processing to alter the size of the prills as desired, or for clogged openings to be cleared, while maintaining operation of the prilling process. The prilling assemblies and prilling methods can be used to produce fertilizer products, including fertilizers comprising ammonium sulfate nitrate.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: December 11, 2012
    Assignee: Honeywell International Inc.
    Inventor: David Wayne Donnick
  • VARIABLE-ORIFICE PRILL PLATE
    Publication number: 20120001355
    Abstract: Prill heads having prilling assemblies that include adjustable openings. Prilling methods using the prilling assemblies can allow for the size of the openings to be varied during processing to alter the size of the prills as desired, or for clogged openings to be cleared, while maintaining operation of the prilling process. The prilling assemblies and prilling methods can be used to produce fertilizer products, including fertilizers comprising ammonium sulfate nitrate.
    Type: Application
    Filed: June 1, 2011
    Publication date: January 5, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventor: David Wayne Donnick