Patents by Inventor Don B. Harmon

Don B. Harmon 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 repair assembly for underground irrigation systems
    Patent number: 4576400
    Abstract: A repair assembly for broken or leaking risers in underground irrigation systems is provided. The repair assembly is adapted to be inserted into a hole through the wall of a buried water distribution line and is held in place by locking tangs engaging the interior surface of the distribution line and by a locking ring flange disposed about the exterior of the assembly and bearing on the exterior wall of the distribution line.
    Type: Grant
    Filed: February 10, 1984
    Date of Patent: March 18, 1986
    Inventors: Von D. Allred, Don B. Harmon