Patents by Inventor Gunnar Ekman

Gunnar Ekman 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).

  • Patent number: 5567911
    Abstract: An explosive in granulated or particulate form, wherein at least a part of the granules comprises an emulsion, having a continuous fuel phase and a discontinuous oxidizer phase containing oxidizing salts, and wherein the fuel phase is soft or deformable and at least a part of the oxidizing salts in the discontinuous phase is in solid crystalline or amorphous form. A method for the manufacture of an explosive in granular or particluate form comprises the steps of, forming an emulsion having a continuous fuel phase and a discontinuous oxidizing phase containing oxidizing salts, solidifying at least a part of the oxidizing salts in the discontinuous phase and granulating the emulsion. The granulated explosive may be charged, e.g. by blow-loading, into a hole in a material and initiated.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: October 22, 1996
    Assignee: Nitro Nobel AB
    Inventor: Gunnar Ekman
  • Patent number: 4737207
    Abstract: A method and an oxidizing composition for preparation of a water-in-oil type emulsion explosive in which a pre-emulsion is formed from a fuel phase and a first part of an oxidizer phase, an oxidizing composition is prepared between a second part of the oxidizer phase and a void containing or void generating material for the explosive whereafter the pre-emulsion and the mixture are emulsified to form the final emulsion.
    Type: Grant
    Filed: December 11, 1986
    Date of Patent: April 12, 1988
    Assignee: Nitro Nobel AB
    Inventors: Hans Ehrnstrom, Gunnar Ekman