Patents by Inventor John Graham Johnston, III

John Graham Johnston, III 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).

  • Pre-Machined Window Weld for Breached Tubing
    Publication number: 20120223125
    Abstract: An example apparatus for replacement of a breached pipe section includes a first cylindrical pipe fitting having a first surface defining a first aperture, a middle pipe member, and a second cylindrical pipe fitting having a second surface defining a second aperture, and first and second aperture caps. A first end of each of the first and second pipe fittings is welded to opposite ends of the middle section, and a second end opposite of each of the first and second pipe fittings is welded through the respective first and second apertures to opposite ends of pipe surrounding the breached pipe section. The first and second aperture caps are welded to the apertures of the first and second pipe fittings to close the respective first and second apertures.
    Type: Application
    Filed: May 14, 2012
    Publication date: September 6, 2012
    Inventor: John Graham Johnston, III
  • Pre-machined window weld for breached tubing
    Patent number: 8196969
    Abstract: An example apparatus for replacement of a breached pipe section includes a first cylindrical pipe fitting having a first surface defining a first aperture, a middle pipe member, and a second cylindrical pipe fitting having a second surface defining a second aperture, and first and second aperture caps. A first end of each of the first and second pipe fittings is welded to opposite ends of the middle section, and a second end opposite of each of the first and second pipe fittings is welded through the respective first and second apertures to opposite ends of pipe surrounding the breached pipe section. The first and second aperture caps are welded to the apertures of the first and second pipe fittings to close the respective first and second apertures.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: June 12, 2012
    Inventor: John Graham Johnston, III
  • Pre-Machined Window Weld for Breached Tubing
    Publication number: 20100140919
    Abstract: An example apparatus for replacement of a breached pipe section includes a first cylindrical pipe fitting having a first surface defining a first aperture, a middle pipe member, and a second cylindrical pipe fitting having a second surface defining a second aperture, and first and second aperture caps. A first end of each of the first and second pipe fittings is welded to opposite ends of the middle section, and a second end opposite of each of the first and second pipe fittings is welded through the respective first and second apertures to opposite ends of pipe surrounding the breached pipe section. The first and second aperture caps are welded to the apertures of the first and second pipe fittings to close the respective first and second apertures.
    Type: Application
    Filed: August 18, 2009
    Publication date: June 10, 2010
    Inventor: John Graham Johnston, III