Abstract: A folding carton formed from a one-piece blank of corrugated board is provided with vertically extending corner gusset elements which impart substantially increased vertical crush strength thereto.

Abstract: A reusable open top case having rectangular interconnected bottom, side and end panels is provided with a disposable cover which includes a top wall overlying the open top of the case and which also includes side and end walls foldably joined to the top wall of the cover together with web structure interconnecting the corners of the side and end walls.

Abstract: The invention in its simplest form is a one piece receptacle formed from a blank that is a flat sheet and where gusseted corners are individually folded and latched to form the receptacle. The latches at each end of the receptacle are joinable to add strength to the receptacle and to provide convenient carrying and/or pull handles. The receptacle may be provided with an integral cover which is secureable to the latches and strengthens and adds to the utility of the latches.

Abstract: A tray formed from paperboard includes a quadrilateral main panel having right angle corners, a pair of end panels foldably joined respectively to opposite end edges of the main panel, a pair of side panels foldably joined respectively to opposite side edges of the main panel, a major web panel foldably joined to each end edge of each of said end panels, a minor web panel foldably joined to each end edge of each side panel, each major and each minor web panel being foldably joined to each other at each corner of the main panel along a common fold line, each major web panel having a major angle of approximately fifty-seven degrees defined by the common fold line and by the adjacent end edge of the associated end panel and each minor web panel having a minor angle defined by its common fold line and by the adjacent end edge of the associated side panel, the side and end panels being approximately perpendicular to the main panel and the major and minor web panels being disposed in the flat face contacting relati

Abstract: A slot-less, one-piece container formed of scored cardboard, or its equivalent, the shape of such container being sustained by locking flaps which form interference fits with contiguous side-wall members and one of which simultaneously overlaps bellows-folded joining members between side members to keep the side-wall members in normal relationship to a base member, the locking flaps being in opposing pairs, each pair having a pair of abutting end members, one pair of end members lying on the base portion and the other pair of end members lying on the cover portion of the container.

Abstract: Corner structure for an open tray or tray cover is formed from a unitary blank comprising a rectangular main panel, a first pair of outer side panels foldably joined to a first pair of opposite side edges of the main panel, a first pair of inner side panels foldably joined respectively to the edges of the first pair of outer side panels which are remote from the main panel, a first pair of base flaps foldably joined respectively to the edges of the first pair of inner side panels which are remote from the first pair of outer side panels, a second pair of outer side panels foldably joined respectively to a second pair of opposite side edges of the main panel, a pair of inner side panels foldably joined respectively to the edges of the second pair of outer side panels which are remote from the main panel, a second pair of base flaps foldably joined respectively to the edges of the second pair of inner side panels which are remote from the second pair of outer side panels, a collapsible web at each corner of the

Abstract: A flanged, dish shaped rectangular pressure responsive diaphragm is made from non-stretchable flat sheet stock in which the corners are formed with a tapering loop of excess material, and pleat folds take up the excess flange material to allow a tab portion to lie flat across the corner. Spacer strips and pieces are added to provide a uniform flange thickness.

Abstract: A folding tray is formed by a single foldable blank which includes a bottom wall, lateral walls, and corner sections. The lateral walls and corner elements include border sections which form a horizontal rim around the periphery of the tray. Each corner section includes a generally rectangular center part and a pair of transition sections on either side thereof. Each transition section comprises a pair of triangular parts joined to each other by a fold line and joined to the center part and associated lateral wall by fold lines. Between the center part and its associated border section is a lens-shaped equalizer section which avoids the creation of an abrupt angle between the center part and border section to enable the border section to lie flat in the erected tray. The equalizer section is defined by a pair of curved fold lines which converge to form points situated adjacent the respective transition sections.

Abstract: An erectable container formed by folding a single base board, in which a bottom surface is made in a polygonal form having more than six sides of an even number, first and second side plates are alternately integrally provided extending from each side of the bottom surface provided with a concave fold line, a lid plate is integrally provided at the edge of the first side plate, a tab is integrally provided at the edge of the second side plate, the second side plate being provided with two first convex fold lines extending till upper ends from each vertex at the lower end thereof and the tab being provided with two second convex fold lines extending till upper ends from each end of the first convex fold lines and approaching toward each other with an inclination greater than that of the first convex fold lines, and the boundary line between the second side plate and the tab is made a concave fold at the portion between each end of the first convex fold.

Abstract: An inexpensive, foldup container for holding and disposing of used medical materials is die-stamped from a single piece of cardboard material and crimped along a plurality of lines to define a plurality of rectangular panels hingably-attached to one another which fold together to form a rectangular carton having an aperture in the top guarded by a barrier flap which permits the one-way disposal of used medical materials, such as disposable sharps and dressings, and further includes a hinged cover which can be locked shut over the disposal opening to retain the contents within the container and to resist tampering during the disposal process. The container may be provided in a partially assembled, flat configuration for storing and shipping.

Abstract: A carton for packaging a plurality of articles having rectangular or square bases and sides such as aseptic packages and the carton blank therefor. In one embodiment the carton includes a base, side panels, inner and outer top panels with handle straps and partial end panels held in an upright position by tuck flaps. In another embodiment the carton includes a base, side panels, inner and outer top panels, partial end panels and tear strips on the side panels to convert the carton to a display.