ApplicationNo. 482370 filed on 06/24/1974
US Classes:156/69, Application of end closures to containers156/203, And edge-joining of one piece blank to form tube156/309.9, With heating of lamina prior to assembly156/322, Heating lamina prior to assembly or adhesive applying156/334, Hydrocarbon resin222/107, Nonmetallic222/94, Plural container and/or compartment222/95With wall-collapsing means
ExaminersPrimary: Whitby, Edward G.
Foreign Application Priority Data1971-12-25 JA
AbstractA process for forming a collapsable tube having a flexible inner tube and a resilient outer tube. A shoulder member is formed having connecting surfaces. A flexible inner tube is joined to the shoulder member at a connecting surface. An outer tube encompassing the inner tube is joined to the shoulder member at a separate connecting surface so that the outer tube overlaps the joint between the inner tube and shoulder member. To resist permeation, the inner tube is formed by lap welding a laminated sheet of different natured materials and depositing a molten material along an edge of the sheet to seal it.
Field of SearchApplication of end closures to containers