Patents by Inventor Dianne F. York

Dianne F. York 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: 5102259
    Abstract: A sub-surface irrigation system includes a conduit connected to a water supply. A plurality of fluid dispenser units are connected to a conduit or conduits. Each of the fluid dispenser units includes a connector interconnected at one end to the interior of the conduit. The other end of the connector is coupled to a drip emitter positioned in an elongated casing. The elongated casing has an enlarged opening at one end and a reduced opening formed at the other end. Tubing interconnects the other end of the connector to the casing. The drip emitter is positioned in the tubing adjacent the casing reduced opening end. In a different invention, the casing extends up to the surface of the ground, so that inspection may be made relative to the operativeness of the drip emitter.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: April 7, 1992
    Inventors: Richard D. York, Dianne F. York