Abstract: A method is provided of manufacturing an easy-open container. A bodywall layer strip is positioned on a wider liner layer strip to define first and second edge portions on the side of the wider liner layer which extends transversely beyond the bodywall layer side edges. These layers are fed to a mandrel and the first liner layer edge portion is folded-over onto an outside surface of the bodywall layer and a high strength bond is formed therebetween. The resulting layers are spirally wound on the mandrel to form a continuous tube having a spiral seam with the bodywall layer side edges forming a butt joint and with each of the first and second liner layer edge portions extending through the butt joint and out of the spiral seam. The second liner layer edge portion is positioned on the first folded-over liner layer edge portion and a low strength bond is formed therebetween. A flexible label layer is spirally wound onto the tube on the mandrel with its longitudinal edges in overlapped relationship.

Abstract: An easy-open container has a spirally-wound paperboard bodywall layer, interior barrier liner layer and outer label layer forming an easy-open seam extending spirally between the ends of the container. A feature is provided for directionally-orienting tearing of the label layer to remove either the entire label layer or just that portion of the label layer which is in bridging relationship to the easy-open spiral seam to allow opening of the container along the spiral seam.

Abstract: An easy-open container has a spirally-wound paperboard bodywall layer, interior barrier liner layer and outer label layer forming an easy-open seam extending spirally between the ends of the container. A feature is provided for directionally-orienting tearing of the label layer to remove either the entire label layer or just that portion of the label layer which is in bridging relationship to the easy-open spiral seam to allow opening of the container along the spiral seam.

Abstract: An easy-open container has a spirally-wound bodywall layer, interior barrier liner layer and outer label layer forming an easy-open seam extending spirally between the ends of the container and which is provided with an improved reinforcing and tear strip extending along the easy-open spiral seam. This reinforcing and tear strip is formed by overlapped edge portions of the label layer extending through and out of the spiral seam of the container and being folded-over onto the outside of the bodywall layer and under the label layer. Low strength bonding is provided between the overlapped label layer edge portions and high strength bonding is positioned between the superimposed label layer and folded-over a liner layer edge portion and between the superimposed label layer and bodywall layer for allowing easy starting and stripping of the reinforcing and tear strip along the spiral easy-open seam without the necessity of removing the entire label layer.

Abstract: A deformable plug for use within an aircraft engine exhaust nozzle system having thrust vectoring and thrust reversing capability, as well as the capability to vary the nozzle area thereby improving propulsion efficiency. This invention utilizes an exhaust nozzle passageway having a rectangular nozzle exit area with the aerodynamically shaped plug centrally located in the path of the engine exhaust gases. The portion of the plug extending aft of the nozzle exit plane comprises of a pair of oppositely facing flaps that can be actuated to provide thrust vector and thrust reversal control as desired. The portion of the plug extending forward of the nozzle exit plane provides for variable throat area control.