Patents by Inventor Franz-Josef Wunderlich

Franz-Josef Wunderlich 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).

  • Mine roof-support truss
    Patent number: 6921232
    Abstract: A truss has a pair of parallel and longitudinally extending chord rods and transverse rods interconnecting the chord rods. First and second slides each have a pair of tubes each fitting over a respective one of the chord rods and slidable longitudinally therealong and a cross member rigidly interconnecting the tubes and formed with a throughgoing hole through which passes a respective anchor member projecting from a tunnel or mine wall. The slides can be longitudinally fixed on the rods.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: July 26, 2005
    Assignee: Bochumer Eisenhutte Heintzmann GmbH & Co. KG
    Inventors: Lothar Domanski, Rudi Podjadtke, Franz-Josef Wunderlich
  • Mine roof-support truss
    Publication number: 20050031420
    Abstract: A truss has a pair of parallel and longitudinally extending chord rods and transverse rods interconnecting the chord rods. First and second slides each have a pair of tubes each fitting over a respective one of the chord rods and slidable longitudinally therealong and a cross member rigidly interconnecting the tubes and formed with a throughgoing hole through which passes a respective anchor member projecting from a tunnel or mine wall. The slides can be longitudinally fixed on the rods.
    Type: Application
    Filed: July 20, 2004
    Publication date: February 10, 2005
    Inventors: Lothar Domanski, Rudi Podjadtke, Franz-Josef Wunderlich