Patents Assigned to Fort Dodge Chemical Company
  • Patent number: 4614160
    Abstract: A manually operated dispensing tool for repeatedly dispensing a predetermined quantity of pelletized material below the surface of the earth. The tool includes an upright elongated outer housing adapted to be connected with a supply of pelletized material filling a reservoir formed by the outer housing. A spring biased downward sleeve having wall ports is vertically reciprocable in the depending end portion of the outer housing for communicating with the material reservoir. A drop tube of smaller diameter than the sleeve depends from and is secured at its upper end portion in the sleeve below the position of the sleeve ports. A handle assembly, overlying the top of the outer housing, is connected with a stem assembly projecting through the housing and drop tube. A central portion of the stem assembly forms a valve normally closing the upper end of the drop tube to define a measuring chamber in the sleeve communicating with the sleeve ports.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: September 30, 1986
    Assignee: Fort Dodge Chemical Company
    Inventor: John Curlett