Patents by Inventor Sigfried Kessler

Sigfried Kessler 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).

  • Propelling cage discarding sabot for a spin-stabilized subcaliber projectile
    Patent number: 5063854
    Abstract: A propelling cage discarding sabot for a spin-stabilized subcaliber projectile, including a plastic material which is shaped and which is composed of a polyamide and from about 5% to about 30% by weight of carbon fiber, the plastic material having a specific weight which does not exceed 1.11 g/cm.sup.3, a tensile strength which is greater than 120 N/mm.sup.2, and a maximum water absorption which does not exceed 0.8% so that the propelling cage discarding sabot has mechanical characteristics which are substantially constant and has substantial dimensional trueness.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: November 12, 1991
    Assignee: Rheinmetall GmbH
    Inventors: Bernard Bisping, Michael Vagedes, Sigfried Kessler, Ulrich Theis