Patents by Inventor Duane R. Mueller

Duane R. Mueller 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).

  • Patent number: 6374769
    Abstract: A fluid material application system is provided with an application deck for applying a fluid material that includes printing ink, adhesive or coating, a source of fluid material, a source of heat transfer liquid, and a heat exchanger. The heat exchanger includes a tube-in-hose ink heat exchange element having a fluid material carrying seamless tube located within a hose. The hose is adapted to be connected to a heat transfer fluid source so that a heat transfer fluid flows around the fluid material carrying tube to control and maintain the temperature of the fluid material in the tube at a generally constant temperature. The elongated heat exchange element may possess a winding type of configuration (e.g., it may be coiled or helically wound or may be laid out in a serpentine path) to define a winding flow path for the fluid material and the heat transfer fluid, and may be located within an enclosing structure to define an overall compact heat exchanger.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: April 23, 2002
    Assignee: Fort James Corporation
    Inventors: Eugene R. Pesavento, Duane R. Mueller, Michael A. Schmelzer