Patents by Inventor Richard S. Barbour

Richard S. Barbour 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).

  • Injection apparatus for injecting slurries/liquids into the ground
    Patent number: 5272992
    Abstract: The disclosure relates to an apparatus for injecting slurry/liquid into the ground comprising a chassis (11, 12), a plurality of injectors (39) mounted on the chassis for penetrating and delivering slurry into the ground and means (55) mounted on the chassis for feeding the ground injectors from a slurry supply. The feeding means comprises an annular chamber (60) having an axially positioned inlet (68) and a plurality of outlets (62) spaced around the chamber axis and connected to the respective ground injectors (39) and a diametrically extending rotary distribution valve (86) in the chamber having a throughway in communication with the inlet and an outlet orifices (90) which sweep over the chamber outlets with rotation of the valve to deliver a quantity of slurry to each outlet.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: December 28, 1993
    Assignee: Greentrac Limited
    Inventors: Richard S. Barbour, Samuel J. Weatherup