Patents Assigned to National Dispenser Company
  • Patent number: 4330072
    Abstract: A dispenser for flowable material, such as liquids or powder, having a container provided with a corrugated sidewall which allows the container to collapse when a downward force is exerted on the upper part thereof. The container has a tubular extension or spout projecting laterally from the upper part thereof and an upper surface free of structure to allow the palm or other part of the hand to readily engage the upper surface and to exert a downward force thereon. The force on the container causes material therein to travel upwardly through an inner tube and laterally through the spout to an outlet at the outer end of the spout. In one embodiment of the dispenser, the upper part of the container has a top opening therethrough to allow filling of the container and a cap removably closes the opening, the cap having a flat or slightly curved upper surface and being press-fitted or threaded onto the upper part to close the opening.
    Type: Grant
    Filed: February 22, 1980
    Date of Patent: May 18, 1982
    Assignee: National Dispenser Company
    Inventor: Gary J. Mastman