Patents by Inventor Tore Jerker Hallenius

Tore Jerker Hallenius 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).

  • Method of blasting and reinforcing rock cavities
    Patent number: 3996751
    Abstract: Before the rock cavity is completely excavated a plurality of arcuated tunnels extending between the top and bottom levels of the intended rock cavity are cut out in the rock outside the future side walls of the cavity, and these tunnels are filled with reinforcing material, preferably concrete, so as to form a rib-like reinforcement structure which is wholly embedded in the rock surrounding the rock cavity.
    Type: Grant
    Filed: May 29, 1974
    Date of Patent: December 14, 1976
    Inventors: Tore Jerker Hallenius, Karl Ivar Sagefors