Patents Assigned to Barrier Pressure Container, Inc.
  • Method of filling barrier pressure container
    Patent number: 4045938
    Abstract: A barrier pressure container apparatus for dispensing viscous materials and a method of filling such container. The apparatus includes a generally cylindrical container having concave ends with a piston located between the same and having a viscous material on one side of the piston and fluid under pressure on the opposite side thereof. A dispensing valve is mounted in the top of the container so that material is dispensed by the pressure below the piston when the valve is open.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: September 6, 1977
    Assignee: Barrier Pressure Container, Inc.
    Inventor: Harold M. Hansen