Patents Assigned to Robert R. Hermann
  • Pumping unit
    Patent number: 4286928
    Abstract: A pumping unit for removing oil or the like from a well. The unit comprises a tower, a sump at the bottom of the tower and a reservoir at an elevation above the sump. A liquid, such as oil or water, is pumped from the sump up to the reservoir. A wheel is mounted at the top of the tower above the reservoir for rotation, and a line extends over the wheel for attachment at one end to a polished rod load outside the tower and at its other end to a receptacle inside the tower serving as a counter weight for the polished rod load.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: September 1, 1981
    Assignee: Robert R. Hermann
    Inventor: Robert A. Clay