Patents by Inventor Joseph E. Backofen

Joseph E. Backofen 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).

  • Shaped charge with explosively driven liquid follow through
    Patent number: 4955939
    Abstract: Disclosed is a non-fragmenting explosive device for perforating a target injecting a material through the perforation to disrupt structure behind the target. The device is particularly adapted to safely disarm unexploded explosive devices such as bombs without detonation of the bomb. The device includes an outer covering of explosive material for explosively confining the disruptive material to a well defined shape for total injection into the target.
    Type: Grant
    Filed: March 2, 1983
    Date of Patent: September 11, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James A. Petrousky, Joseph E. Backofen, Donald J. Butz
  • Portable pressure vessel and closure
    Patent number: 4056212
    Abstract: A portable spherically shaped pressure vessel utilizes a noninterfering sle pivot internally operable door slidably supported against an interior wall surface for safely storing and transporting an improvised explosive device therein. The door in its open position provides rapid unobstructed access through a conveniently positioned reinforced port hole and rapid closure of the port with complete sealing of the explosive contents contained within the vessel.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: November 1, 1977
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Jon Petty, Beverly D. Trott, Joseph E. Backofen