Patents by Inventor Lyle D. Berning

Lyle D. Berning 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).

  • Production of UHMWPE sheet materials
    Patent number: 7980839
    Abstract: Wide panels of UHMWPE having exceptional flatness and surface quality are ram extruded through a slit die equipped with a plurality of individually adjustable cooling zones proximate the panel exit slit and transverse to the machine direction, which cool the panel while the panel is restrained by a back pressure device and preferably a vertical movement restraint. The process is robust and can be run for long product campaigns.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: July 19, 2011
    Assignee: Quadrant EPP AG
    Inventors: Joseph V. Gregg, Wesley Allen Kohler, Lyle D. Berning
  • Production of UHMWPE sheet materials
    Patent number: 7758797
    Abstract: UHMWPE panels of large width may be prepared by a continuous ram extrusion process by employing a slit die which preferably narrows from both sides in a direction transverse to the machine direction, and/or which employs a plurality of transversely positioned cooling zones located on the top and the bottom of the die, proximate the exit thereof. The panel exits the die at a temperature lower than the crystalline melt temperature.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: July 20, 2010
    Assignee: Quadrant EPP AG
    Inventors: Joseph V. Gregg, Wesley Allen Kohler, Lyle D. Berning
  • PRODUCTION OF UHMWPE SHEET MATERIALS
    Publication number: 20100173030
    Abstract: Wide panels of UHMWPE having exceptional flatness and surface quality are ram extruded through a slit die equipped with a plurality of individually adjustable cooling zones proximate the panel exit slit and transverse to the machine direction which cool the by a back pressure device and preferably a vertical movement restraint. The process is robust and can be run for long product campaigns.
    Type: Application
    Filed: March 23, 2010
    Publication date: July 8, 2010
    Applicant: QUADRANT EPP AG
    Inventors: Joseph V. Gregg, Wesley Allen Kohler, Lyle D. Berning
  • Production of UHMWPE sheet materials
    Patent number: 7736579
    Abstract: Wide panels of UHMWPE having exceptional flatness and surface quality are ram extruded through a slit die equipped with a plurality of individually adjustable cooling zones proximate the panel exit slit and transverse to the machine direction which cool the by a back pressure device and preferably a vertical movement restraint. The process is robust and can be run for long product campaigns.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: June 15, 2010
    Assignee: Quadrant EPP AG
    Inventors: Joseph V. Gregg, Wesley Allen Kohler, Lyle D. Berning
  • Production of UHMWPE Sheet Materials
    Publication number: 20080018026
    Abstract: Wide panels of UHMWPE having exceptional flatness and surface quality are ram extruded through a slit die equipped with a plurality of individually adjustable cooling zones proximate the panel exit slit and transverse to the machine direction which cool the by a back pressure device and preferably a vertical movement restraint. The process is robust and can be run for long product campaigns.
    Type: Application
    Filed: July 13, 2007
    Publication date: January 24, 2008
    Applicant: QUADRANT EPP AG.
    Inventors: Joseph V. Gregg, Wesley Allen Kohler, Lyle D. Berning
  • Production of UHMWPE sheet materials
    Publication number: 20080018022
    Abstract: UHMWPE panels of large width may be prepared by a continuous ram extrusion process by employing a slit die which preferably narrows from both sides in a direction transverse to the machine direction, and/or which employs a plurality of transversely positioned cooling zones located on the top and the bottom of the die, proximate the exit thereof. The panel exits the die at a temperature lower than the crystalline melt temperature.
    Type: Application
    Filed: July 21, 2006
    Publication date: January 24, 2008
    Inventors: Joseph V. Gregg, Wesley Allen Kohler, Lyle D. Berning