Patents Assigned to Sonoco Limited
  • Device facilitating filling and unfolding of bag within outer casing
    Patent number: 4786192
    Abstract: A cartridge is provided in the form of a sheet of material having swingable flaps extending from opposing side regions. A folded bag, which is to be filled with fluid, is positioned on the sheet and attached to the flaps, and the flaps are folded thereover in the initial position. In use, the cartridge is placed in a casing and, upon filling, the bag expands in a controlled manner and pushes back the flaps.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: November 22, 1988
    Assignee: Sonoco Limited
    Inventors: Stewart M. Graves, Peter J. M. Stuart, Adrian P. Peet, Peter M. Maple