Abstract: A container having a plurality of selectable volumes including a plurality of fold facilitating creases adapted to allow panels to be folded or removed along a fold facilitating crease and/or perforation, further including a first set and a second set of perforations or other separating mechanism extending substantially parallel to a corner edge to thereby define a removable strip for unconnecting panels that form a corner edge from one another. The first set of perforations and the second set of perforations or other separating mechanism are positioned at a spaced distance from each other. The first set of perforations or other separating mechanism is provided on a first panel while the second set of perforations or other separating mechanism is provided on either the corner edge itself or a second panel that form the corner edge. The container may further include lateral perforations as well as flaps, tabs, slits and slots along a top edge of the panels.

Abstract: A container having a plurality of selectable volumes having a bottom portion, two side panels, and two end panels with lateral perforations extending across these panels to allow removal of at least a portion thereof. Each of the two end panels includes hypotenuse creases adapted to allow the two end panels to be selectively inwardly folded to thereby form a top closure for the container with a portion of the two side panels. In addition, the containers may be provided with a vertical perforation, a closure flap with side flaps, and identifiable marking to facilitate identification of the perforations and hypotenuse creases. Moreover, the container may also include a plurality of fold facilitating creases laterally extending across the two side panels and the two end panels, as well as through-holes on the hypotenuse creases.

Abstract: A container having a plurality of selectable volumes which selectable volumes are made by inwardly folding sides and ends of the container along selectable foldable creases. The invention may also be a container in unassembled form. Preferably the container, when assembled, is rectangular in cross sectional shape, and preferably formed from layered cardboard material. The assembled container has two side panels attached to two end panels and to the bottom portion along the panel edges thereby forming the container.

Abstract: An aerial toy of the glider type includes a planar body of generally C-shape provided with a central section bounded by two lateral sections. A single, continuous, substantially curved leading edge having a center nose encompasses the forwardmost portion of the entire body, between wing tips defined by the two lateral sections. The trailing edge of the central section is formed by a horizontal stabilizer and is located substantially forward of the trailing edges of the two lateral sections such that an enlarged relief area is provided rearwardly of the central section and intermediate the lateral sections. A vastly sustained flight time is achieved with this body construction, which presents a center of gravity that passes substantially through a point that is one-third the distance from the craft nose, along the overall longitudinal axis of the body, including the central and lateral sections.