Patents by Inventor James I. Warner

James I. Warner 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).

  • Riser assembly for a sub-surface irrigation and drainage system
    Patent number: 4678367
    Abstract: A riser assembly for a sub-surface irrigation and drainage system is disclosed having a molded, housing defining a generally rectangular, elongated cavity. A divider within the housing divides the cavity into an upstream chamber and a downstream chamber. A drainage opening and a weir opening are defined by the divider, and slidable gate valves are disposed over each opening. By adjusting the positions of the gate valves, the upstream water level cable may be readily adjusted.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: July 7, 1987
    Inventor: James I. Warner