Patents by Inventor Edward Tota

Edward Tota 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).

  • Element for initiating propellant
    Publication number: 20060096487
    Abstract: Apparatus for breaking rock which includes a cartridge (16) which forms an enclosure, a propellant (24) inside the enclosure, and at least one element (26) which is electrically energisable and which is made from inert material exposed to the propellant.
    Type: Application
    Filed: December 17, 2002
    Publication date: May 11, 2006
    Inventors: Andre Van Dyk, Edward Tota
  • Explosive pressure wave concentrator
    Publication number: 20060027123
    Abstract: Apparatus for breaking rock which includes a first cartridge (30) with a base (32) and a side wall (34) which form an enclosure, and a propellant (42) inside the enclosure, and wherein a discontinuous relatively weaker region (60) of the container is formed at a junction between the wall and the base.
    Type: Application
    Filed: December 17, 2002
    Publication date: February 9, 2006
    Inventors: Andre Van Dyk, Edward Tota
  • Cartridge shell and cartridge for blast holes and method of use
    Patent number: 6708619
    Abstract: A cartridge shell 10 comprises a main body 12 defining a volume 14 for holding energetic material. The main body 12 has a first end 16 for location adjacent a toe 48 of a hole 46 and a second end 18 directed to the collar 50 of hole 46. The second end 18 is tapered to reduce in transverse area away from the first end to form a point or wedge-like member 20.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: March 23, 2004
    Assignee: Rocktek Limited
    Inventors: Edward Tota, Nigel Rogers