Abstract: An eight-sided box having uninterrupted top and bottom walls, which can be inexpensively manufactured as a single sheet of corrugaed cardboard and shipped in a flattened, knock-down configuration with the manufacturer's joint formed, and which can be quickly erected, filled and closed by a packager to provide a secure package. In a second embodiment locking ears are provided which virtually insure that the box cannot be inadvertently opened.

Abstract: In a cardboard container, having a bottom wall and side walls, slits are defined to extend only in the bottom wall and the material of the bottom wall is deformed or bent so that the portions of the bottom wall, adjacent to the edges of each given slit, are situated different planes and are maintained in these different planes by means of a sheet of synthetic material. The sheet of synthetic material is shaped by heat deformation to conform with the deformed shape of the bottom wall.

Abstract: There is disclosed a stand-up panel for a collapsible self-erecting display device, such as an advertising or novelty device, in which the panel is adapted to be pinched between adjacent side edges of the sidewalls of the device when it is in its erected position to hold the panel upright and is adapted to be released by the side edges whereby it can fall flat onto the display device when it is in its collapsed condition.

Abstract: A polygonal bulk container comprising a main body blank including a plurality of rectangular panels hingedly connected along hinge lines serialtim, a polygonal bottom panel having a majority of the side edges conforming to and abutting against the adjacent inner walls of said main body blank, a side edge glue flap hingedly connected to a margin of one of the rectangular panels, a bottom reinforcing tab with adhesive on the bottom surface thereof being foldable inwardly and glued to said polygonal bottom panel and functioning as a support therefor, and a polygonal auxiliary bottom panel in said container overlying said bottom reinforcing tab. The bottom tab and glue flaps together with adjacent extensions functioning to strengthen the bottom panel of the container against collapsing when transporting bulk food products.

Abstract: A container of prismatic form, in particular for loose sweetmeat products, obtained starting from a unitary flat blank or from two cardboard flat blank parts, in which the opening and closure respectively of the container itself for withdrawal of the product contained therein takes place by telescopically sliding one part of the assembled blank over the other part thereof, this sliding causing, in accordance with the direction in which it takes place, opening or closure of one end of the container by means of a substantially diaphragm device formed by means of particular shaping by die cutting of a part of the unitary flat blank or one of the two flat blank parts.

Abstract: The present invention comprises a polygonal folding shipping container, one embodiment of which is a rectangular box having a bottom wall, a top wall, a rear wall, a front wall and two opposite side walls. The front wall and the two opposite side walls each include inner and outer panels which are folded with respect to one another at the upper edge of the wall. A slot extends along the upper edge of each of the front and side walls. The rear wall extends upwardly and is connected to a top wall which has a plurality of flaps along its outer edges. Each of the flaps extend into the slots in the front and side walls.

Abstract: A flat of fiberboard in knocked-down form for setting up into a tray which has strengthened corners. The flat consists of laminated strength-producing connecting corner tabs between hinged side-wall forming flaps. The tabs are formed on the ends of the flaps and some of the flaps are provided with angular fold lines which provide foldable sections in these flaps, the fold lines extending from the flap hinge lines of the respective flaps to a point within the flaps and a slit being provided from that point in each flap to the outer edge of the flap to permit folding of the foldable flap sections.