Patents by Inventor Llewellyn John Grundlingh

Llewellyn John Grundlingh 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).

  • Conveyance device
    Patent number: 8261669
    Abstract: The invention provides a conveyance device, suitable for traveling along a surface and conveying an explosive charge, the conveyance device including a propulsion member having two opposite ends, the propulsion member being displaceable between a longitudinally extended position wherein the ends are displaced away from one another; and a longitudinally contracted position wherein the ends are displaced toward one another; an outer gripping member and an inner gripping member, each gripping member being displaceable between a circumferentially expanded position wherein an outer perimeter of the gripping member is displaced away from a center of the member so as to, in use, abut at least part of the surface; and a circumferentially contracted position wherein an outer perimeter of the gripping member is displaced towards the center of the member so as to be spaced apart from the surface; the propulsion member and the gripping members being configured in order for sequential displacement of the propulsion member
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: September 11, 2012
    Inventor: Llewellyn John Grundlingh
  • Conveyance Device
    Publication number: 20090293753
    Abstract: The invention provides a conveyance device, suitable for traveling along a surface and conveying an explosive charge, the conveyance device including a propulsion member having two opposite ends, the propulsion member being displaceable between a longitudinally extended position wherein the ends are displaced away from one another; and a longitudinally contracted position wherein the ends are displaced toward one another; an outer gripping member and an inner gripping member, each gripping member being displaceable between a circumferentially expanded position wherein an outer perimeter of the gripping member is displaced away from a center of the member so as to, in use, abut at least part of the surface; and a circumferentially contracted position wherein an outer perimeter of the gripping member is displaced towards the center of the member so as to be spaced apart from the surface; the propulsion member and the gripping members being configured in order for sequential displacement of the propulsion member
    Type: Application
    Filed: October 10, 2006
    Publication date: December 3, 2009
    Inventor: Llewellyn John Grundlingh