Patents by Inventor Lennart Fredriksson

Lennart Fredriksson 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).

  • Shell for gun with smooth-bore barrel
    Patent number: 5773751
    Abstract: A method for converting mortar shells into shells for use in smooth-bore gun barrels having an interior surface. The mortar shells include a warhead having a front end, a rear end, a tail fin, and a propellant charge. A guide casing is attached to at least the rear end of the warhead. The guide casing includes an outside surface. The guide casing supports at least the rear end of the warhead and is adapted for use with the smooth-bore gun barrel that the converted shells are to be fired from. A bourrelet is attached to the outside surface of the guide casing for sealing between the converted shells and the interior surface of the smooth-bore gun barrel that the converted shells are to be fired from.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: June 30, 1998
    Assignee: Bofors Liab AB
    Inventors: Lennart Fredriksson, Arne Wikstrom