Patents by Inventor Frank Eichner

Frank Eichner 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).

  • Compressed-gas gun
    Patent number: 7213589
    Abstract: A compressed gas injection device includes a projectile course for receiving and accelerating projectile bodies, a compressed gas housing which is connected to the projectile course and which is divided up into a compressed gas chamber and a working chamber by a partition. A working piston is arranged in the compressed gas housing and is provided with a valve plate which is arranged on the front end of the piston rod thereof for moveable rear closure of the projectile course, wherein the working piston is a movable backward closure element for the working chamber and the piston rod is guided through the partition.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: May 8, 2007
    Assignee: Hans Eichner GmbH & Co. KG
    Inventors: Frank Eichner, Ulrich Hess
  • Compressed-gas gun
    Publication number: 20050183711
    Abstract: A compressed gas injection device includes a projectile course for receiving and accelerating projectile bodies, a compressed gas housing which is connected to the projectile course and which is divided up into a compressed gas chamber and a working chamber by a partition. A working piston is arranged in the compressed gas housing and is provided with a valve plate which is arranged on the front end of the piston rod thereof for moveable rear closure of the projectile course, wherein the working piston is a movable backward closure element for the working chamber and the piston rod is guided through the partition.
    Type: Application
    Filed: November 19, 2004
    Publication date: August 25, 2005
    Inventors: Frank Eichner, Ulrich Hess