Patents by Inventor Leszek Poletek

Leszek Poletek 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 billet
    Patent number: 8298681
    Abstract: The invention relates to an extrusion billet having two end sides, characterized in that the surface of at least one end side face has a three-dimensional topography which is composed of a substantially planar end side face from which local elevations protrude.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: October 30, 2012
    Assignee: Wieland-Werke AG
    Inventors: Ali Aydin, Hans-Peter Hoehe, Leszek Poletek, Florian Schopper
  • Extrusion billet and method for heating an extrusion billet in a pusher-type furnace
    Publication number: 20080075969
    Abstract: The invention relates to an extrusion billet having two end sides, characterized in that the surface of at least one end side has a three-dimensional topography which is composed of a substantially planar end side face from which local elevations protrude.
    Type: Application
    Filed: July 9, 2007
    Publication date: March 27, 2008
    Inventors: Ali Aydin, Hans-Peter Hoehe, Leszek Poletek, Florian Schopper
  • Coating system for metal bands and method for producing metal bands which are coated on one side
    Publication number: 20080020144
    Abstract: The invention relates to a coating system for metal bands, comprising a melt bath with liquid coating material, a coating roller, and a band guide for the metal band which runs over the coating roller, wherein the coating roller only partially immerses in the melt bath, and this roller comprises a material which is not wettable by the liquid coating material. A further aspect of the invention relates to a method for producing metal bands which are coated on one side by means of the coating system according to the invention.
    Type: Application
    Filed: April 25, 2007
    Publication date: January 24, 2008
    Inventors: Leszek Poletek, Hermann Sturm
  • Coating system for metal strips and method for producing metal strips partially coated on one side
    Publication number: 20070269602
    Abstract: The invention relates to a coating system for metal strips, consisting of: a coating roll, an application device for the coating material, a mask strip guided over the coating roll by means of deflection rolls, the mask strip being configured endlessly, a strip guide for the metal strip running over the coating roll. Another aspect of the invention relates to a method for producing metal strips partially coated on one side by means of the coating system according to the invention.
    Type: Application
    Filed: April 27, 2007
    Publication date: November 22, 2007
    Inventors: Leszek Poletek, Hermann Sturm