Patents by Inventor Horst Kantner

Horst Kantner 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: 5204494
    Abstract: A subcaliber projectile including a segmented discardable propelling cage sabot which encloses at least a portion of the projectile body and has a common form-locking zone for the transfer of acceleration forces from the propelling cage to the projectile body. The form-locking zone has mating annular grooves and counter grooves on the exterior surface of the projectile body and on the interior surface of the propelling cage, and is subdivided into several form-locking zone regions in which the annular grooves have a different groove spacing that is adapted to the locally occurring shear stresses. These measures enhance simplification of the manufacturing process and result in an improvement of the release of the propelling cage sabot from the projectile body and in an increase in the target impact velocity of the projectile body.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: April 20, 1993
    Assignee: Rheinmetall GmbH
    Inventors: Jurgen Meyer, Achim Sippel, Heinz-Josef Kruse, Siegfried Kessler, Horst Kantner, Ulrich Theis
  • Patent number: 5090328
    Abstract: A spin stabilized projectile unit includes a sub-caliber projectile having a cylindrical section connected to a conical tail section including an external circumferential holding groove. A propelling cage casing encloses the projectile. A propelling base includes a receptacle holding the projectile and connected with the projectile and the propelling cage casing. The receptacle includes inwardly projecting axial webs presenting an inner diameter of the receptacle in a region of the cylindrical section of the projectile which corresponds to the outer diameter of the cylindrical section. The inner diameter of the receptacle formed by the webs becomes increasingly larger than the respective outer diameter of the conical section beginning in the transition region between the cylindrical and conical sections to form an annular gap extending to a bottom region of the bottom of the receptacle.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: February 25, 1992
    Assignee: Rheinmetall GmbH
    Inventors: Ulrich Theis, H. -P. Hellmeister, Bernhard Bisping, Michael Vagedes, Siegfried Kebler, Horst Kantner, Peter Sommer
  • Patent number: 4867065
    Abstract: A training cartridge including a training charge contained in a cartridge case. The training cartridge is for use in externally driven automatic weapons firing at high cadences and is to be manufactured easily and economically. This is accomplished by a cylindrical plastic insert having a central bore which accommodates the practice charge. It is introduced into a central case and is fixed therein by means of an externally applied rolled section.
    Type: Grant
    Filed: September 14, 1988
    Date of Patent: September 19, 1989
    Assignee: Rheinmetal GmbH
    Inventors: Hans-Joachim Kaltmann, Horst Kantner