Patents by Inventor Kerry S. Atkinson

Kerry S. Atkinson 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).

  • Reduced energy blasting agent and method
    Patent number: 6982015
    Abstract: The present invention relates to a method of reducing the energy of an emulsion blasting agent as it is being loaded into a borehole and to an improved method of perimeter blasting wherein an energy reducing agent is added to and mixed uniformly throughout an emulsion blasting agent as it is being pumped or conveyed into a perimeter borehole to reduce the energy of the blasting agent to a desired level. In addition, by adding varying amount of gassing agents, the density and sensitivity of the emulsion blasting agent also can be controlled.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: January 3, 2006
    Assignee: Dyno Nobel Inc.
    Inventors: Kerry S. Atkinson, John B. Halander
  • Reduced energy blasting agent and method
    Publication number: 20030029346
    Abstract: The present invention relates to a method of reducing the energy of an emulsion blasting agent as it is being loaded into a borehole and to an improved method of perimeter blasting wherein an energy reducing agent is added to and mixed uniformly throughout an emulsion blasting agent as it is being pumped or conveyed into a perimeter borehole to reduce the energy of the blasting agent to a desired level. In addition, by adding varying amount of gassing agents, the density and sensitivity of the emulsion blasting agent also can be controlled.
    Type: Application
    Filed: May 25, 2001
    Publication date: February 13, 2003
    Applicant: DYNO NOBEL INC.
    Inventors: Kerry S. Atkinson, John B. Halander
  • Delivery of emulsion explosive compositions through an oversized diaphragm pump
    Patent number: 6401588
    Abstract: A system and method are provided for delivering emulsion explosive compositions into a borehole by means of an oversized diaphragm pump, which provides a relatively constant flow rate for the pumped emulsion explosive composition thereby minimizing flow pulsations during delivery.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: June 11, 2002
    Assignee: Dyno Nobel Inc.
    Inventors: Kerry S. Atkinson, John B. Halander
  • Method for forming an emulsion explosive composition
    Patent number: 6113715
    Abstract: The invention relates to methods for forming an emulsion explosive composition and to methods for sensitizing an emulsion explosive composition. The methods involve the in-situ expansion of organic microspheres during the formation of the emulsion explosive composition.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: September 5, 2000
    Assignee: Dyno Nobel Inc.
    Inventors: John B. Halander, Kerry S. Atkinson
  • System for pneumatic delivery of emulsion explosives
    Patent number: 5686685
    Abstract: Apparatus for delivery under pressure of emulsion explosives to boreholes using an annular stream of water for lubrication. Maintaining the water pressure at least 10 psi greater than the emulsion pressure has been found to maintain the integrity of the lubricating annulus of water.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: November 11, 1997
    Assignee: Dyno Nobel Inc.
    Inventors: Keith J. McDonald, Kerry S. Atkinson