Patents by Inventor John Rodger Robinson

John Rodger Robinson 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: 6318645
    Abstract: A fluid distribution system is especially useful in agricultural apparatus for delivering liquid agricultural chemicals to agricultural fields. The system includes a flow divider with a cylindrical stator with a ring of collection chambers around the bottom of the stator and a rotor having a flow passage from the center of the top end to the bottom end above the ring of collection chambers. The flow dividers may be cascaded to provide multiple outlets. The system may include plural liquid supplies and a mixer for mixing the liquids from the plural supplies to provide a desired blend upstream of the flow divider. It is preferred that the flow of each liquid can be varied to vary the blend. The system may also include a control that varies the blend according to requirements as distribution proceeds. This may include a recorded mapping of a field being treated and a position sensor, for example a global position sensor (GPS) for monitoring the position of the apparatus in the field.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: November 20, 2001
    Inventor: John Rodger Robinson
  • Patent number: 6155769
    Abstract: A transportation system for liquid-carrying tanks. Each tank is mounted on a carrier unit and plural carrier units are transported by a single trailer or other vehicle. The trailer has an adjustable height, while each of the tank carrier units has adjustable height legs on its opposite sides. The units are loaded by backing the trailer under the carrier unit with the carrier unit legs extended and the trailer lowered. The trailer is then raised to lift the carrier unit to a transport position and the legs are in turn lifted to the transport position. For unloading, the reverse procedure is adopted, with the carrier unit legs being lowered to the ground and then the trailer being lowered and the trailer being pulled out from under the carrier unit. The carrier units are arranged with an angled base so that when the carrier is pulled out, the carrier unit will tilt forwardly to provide maximum drainage of the tank.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: December 5, 2000
    Assignee: Green Drop Ltd.
    Inventor: John Rodger Robinson