Patents Assigned to NXCO International Limited
  • Method of and apparatus for breaking rock
    Patent number: 7367631
    Abstract: Apparatus for breaking rock includes a cartridge with a base and a wall which extends from the base, the base and the wall forming an enclosure, a propellant inside the enclosure and means for igniting the propellant, and wherein at least the wall is made from a malleable material adapted to reinforce the wall of a hole in the rock in which the cartridge is located.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: May 6, 2008
    Assignee: NXCO International Limited
    Inventor: Andre Van Dyk