Patents by Inventor Hans-Wilhelm Leyendecker

Hans-Wilhelm Leyendecker 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: 4909150
    Abstract: A device for driving an oscillating auxiliary gripper of a printing press includes a driven shaft having an eccentric portion thereon, the driven shaft being rotatably mounted on the side upright of the press and on the eccentric portion of which a cam-actuated auxiliary gripper shaft is rotatably mounted for oscillation thereon. A driven gear is rigidly secured to the driven shaft and meshes permanently with a drive gear that rotates with the impression cylinder to provide positively cooperating drive elements for introducing the desired additional oscillating motion upon the continuous orbital movement of the auxiliary gripper shaft.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: March 20, 1990
    Assignee: M.A.N. Roland Druckmaschinen AG
    Inventors: Hans-Wilhelm Leyendecker, Paul Abendroth
  • Patent number: 4800813
    Abstract: A device for driving an oscillating auxiliary gripper of a printing press includes an eccentric shaft rotatably mounted in the side upright of the press and on the eccentric portion of which a cam-actuated auxiliary gripper shaft is rotatably mounted for oscillation thereon rotation with a driven gear being rigidly secured to the eccentric shaft and meshing permanently with a drive gear that rotates with the impression cylinder of the press is arranged to provide positively cooperating drive elements and coaxiality of the input and output shafts for introducing the desired additional motion superimposed upon the continuous rotation of the lifting eccentric of the auxiliary gripper.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: January 31, 1989
    Assignee: M.A.N. Roland
    Inventors: Hans-Wilhelm Leyendecker, Paul Abendroth