Patents by Inventor Eric D. Freeman

Eric D. Freeman 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).

  • Irrigation system
    Patent number: 4186763
    Abstract: An irrigation system having a generally vertical water delivery pipe and a water distribution pipe extending horizontally from and communicating with the delivery pipe. The distribution pipe is driven in rotation around an axis defined by the water delivery pipe by a hydraulic fluid operated drive, while hydraulic fluid for actuating the drive is circulated between the drive and a pump or the like through a conduit system which includes a rotary joint encircling the axis defined by the delivery pipe.
    Type: Grant
    Filed: March 20, 1978
    Date of Patent: February 5, 1980
    Inventors: George R. Ferguson, Eric D. Freeman
  • Fan adapter for automobile fan clutch replacement
    Patent number: D398984
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: September 29, 1998
    Inventor: Eric D. Freeman