Patents by Inventor Bjorn Engsbraten

Bjorn Engsbraten 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).

  • Explosive composition, manufacture and use thereof
    Patent number: 5486247
    Abstract: Explosive composition, and method for its manufacture, based on an essentially particulate mixture containing a solid oxidizing salt and optionally a fuel, wherein at least a part of the oxidizing salt contains ammonium ion. The mixture contains an additive of acid and may be used in environments with risk of ammonia liberation.
    Type: Grant
    Filed: February 4, 1993
    Date of Patent: January 23, 1996
    Inventor: Bjorn Engsbraten
  • Making a reduced volume strength blasting composition
    Patent number: 5271779
    Abstract: A blasting composition of reduced volume strength relative to straight ammonium nitrate/fuel oil (ANFO) compositions, containing particulate oxidizer salt, particulate inert and/or density reducing filler and optionally a fuel for modifying the oxygen balance. The composition contains a viscous water-in-oil type emulsion, having a continuous fuel phase and a discontinuous aqueous phase of oxidizing salts, in an amount sufficient for improving adherence between the particulate oxidizer salt and the particulate filler, but insufficient for filling out the interstices between the particulate oxidizer salt and the particulate filler.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: December 21, 1993
    Assignee: Nitro Nobel AB
    Inventor: Bjorn Engsbraten
  • Blasting composition
    Patent number: 4995925
    Abstract: A blasting composition of reduced volume strength relative to straight ammonium nitrate/fuel oil (ANFO) compositions, containing particulate oxidizer salt, particulate inert and/or density reducing filler and optionally a fuel for modifying the oxygen balance. The composition contains a viscous water-in-oil type emulsion, having a continuous fuel phase and a discontinuous aqueous phase of oxidizing salts, in an amount sufficient for improving adherence between the particulate oxidizer salt and the particulate filler, but insufficient for filling out the interstices between the particulate oxidizer salt and the particulate filler.
    Type: Grant
    Filed: February 22, 1989
    Date of Patent: February 26, 1991
    Assignee: Nitro Nobel AB
    Inventor: Bjorn Engsbraten