Abstract: A convertible package and bowl type container (10) has two overlaying sheets joined along their side edges by side seals (13) and folded to form container sides (19), container ends (20), a generally square bottom (14). The container has an elongated openable seal along the top of the two sides. The sides are of a height of between one to two times that of the major side dimension of the bottom. The container is reconfigurable between a closed configuration with the top seal closed and an open, self standing configuration with a squared off open top.

Abstract: Containers (56) are produced from a sheet of flexible sheet material (10) having a sealable inner layer (12). The material is cut to expose the sealable inner layer when the material is folded upon itself so as to form a container having side seams (58) extending past the end walls of the container to prevent breaching and internal tabs (30) to prevent capillary leakage.

Abstract: A method and apparatus is disclosed for mounting constructing a flexible a tubular fitment (10) to a flexible container (11) and to the resulting product. The fitment is mounted upon a mandrel (24) having an extendable bearings in the form of an annular array of balls (27). The mandrel supporting the fitment is positioned within the container body (11) and the assembly positioned in heat sealing dies (33,34) having an annular channel (35) sized to receive the fitment. The dies have a groove (36) extending from the channel. The balls are then outwardly extended into the groove and the mandrel rotated to cause the balls to orbit in a circle and seal the fitment to the flexible container oven an annular protrusion (38).

Abstract: In the use of microwave energy to remove moisture from a moving web, such as that moisture contained within transverse glue lines between superimposed sheets of the web for the purpose of holding the sheets together, the web is passed through a serpentine wave guide having a number of serially connected sections spanning the path of travel of the web. The microwave energy takes the form of standing waves within the wave guide, and the peaks of such waves represent "hot spots" of energy concentrations at which points maximum molecular agitation of the moisture is obtained so as to likewise obtain maximum drying effect. If the standing waves are simply tuned until resonance occurs, there is a considerable likelihood that the wave peaks of one section of the wave guide may become lined up with those of the other wave guide sections, hence producing several distinct lines of energy concentrations along the path of web travel.