Patents by Inventor Gregory G. Herndon

Gregory G. Herndon 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).

  • Extrusion die plate assembly for a pelletizer system
    Patent number: 9481121
    Abstract: Provided is a die plate assembly for an underwater pelletizing system, wherein molten plastic flows through a die plate and exits into a fluid bath for further processing. The assembly provides a seal against water leakage and effective insulation to prevent heat loss from a heated die plate. The assembly includes a die plate having a plurality of through holes for receiving fasteners for mounting the plate to another portion of the pelletizer system, and at least one insulation chamber for insulating the die plate from the fluid bath located on a downstream side of the die plate. The assembly further includes at least one gasket covering one or more of the through holes to seal one or more through holes from the fluid bath.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: November 1, 2016
    Assignee: KENNAMETAL INC.
    Inventors: J. Denny Robertson, Gregory G. Herndon, Pavel Ledyan
  • Extrusion Die Plate Assembly for a Pelletizer System
    Publication number: 20150132424
    Abstract: Provided is a die plate assembly for an underwater pelletizing system, wherein molten plastic flows through a die plate and exits into a fluid bath for further processing. The assembly provides a seal against water leakage and effective insulation to prevent heat loss from a heated die plate. The assembly includes a die plate having a plurality of through holes for receiving fasteners for mounting the plate to another portion of the pelletizer system, and at least one insulation chamber for insulating the die plate from the fluid bath located on a downstream side of the die plate. The assembly further includes at least one gasket covering one or more of the through holes to seal one or more through holes from the fluid bath.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Inventors: J. Denny Robertson, Gregory G. Herndon, Pavel Ledyan