Patents by Inventor Donald R. Osment

Donald R. Osment 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).

  • Pre-molded AFT seal for discarding sabot projectiles
    Patent number: 5962807
    Abstract: The present invention is directed to a pre-molded aft seal for an armor piercing fin stabilized discarding sabot (APFSDS) projectile, comprising a plastic sleeve made from a material selected from the group consisting of thermoplastic polyurethane and thermoplastic polyester elastomer, and effective to seal an APFSDS projectile from combustion products, the plastic aft sleeve further comprising an outwardly flanged first portion having a radius of curvature of from about 0.1 to 5 inches; a constantly decreasing diameter second portion; and an inwardly flanged substantially conical third portion connected to the second portion by a curved portion having a radius of curvature of from about 0 to 0.25 inch.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: October 5, 1999
    Assignee: Primex Technologies, Inc.
    Inventors: William B. Stewart, Donald R. Osment, John W. Duchek
  • Pre-molded aft seal for discarding sabot projectiles
    Patent number: 5747725
    Abstract: An armor piercing fin stabilized discarding sabot kinetic energy projectile includes a pre-molded plastic aft seal sleeve to protect the sabot from damage from the propellant and replaces both the RTV and the protective sheath of conventional designs. The seal is manufactured from thermoplastic polyurethane or thermoplastic polyester elastomer.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: May 5, 1998
    Assignee: Primex Technologies, Inc.
    Inventors: W. Brian Stewart, Donald R. Osment, John W. Duchek