Abstract: A fast food wrapper for hamburgers or the like is fashioned from a single square or diamond shaped sheet of paper, the food contacting surface of the blank coated with a food grade grease resistant composition. The blank is provided with a fold lines both parallel and orthogonal to an imaginary axis joining the top and bottom tips of the blank. These tips are provided with portions of latching elements. The side or lateral blank tips are folded towards the middle to form an expansion bellows along both of the sides and are adhesively tacked together. The bottom of the blank is folded upwardly and also adhesively tacked. In use, the hamburger is placed within the wrapper and the top of the wrapper folded over the hamburger and latched. The wrapper may be unfolded so as to function as a napkin or paper plate during eating.

Abstract: A paper bag particularly adapted for the packaging of carryout food items such as hamburgers and chicken. The bag is of a unitary construction and includes two inwardly folded bellows panels on its sides, each bellows joining respective sides of the bag. A fold line is positioned below the top, free edges of the side walls. A pair of spaced cuts is located substantially midway of respective fold lines, each cut of each pair extending from above to below its respective fold line, the individual cuts being spaced from each other along the fold line. Respective areas of the front and rear bag walls above the fold line carry indicia, such as printed indicia, to indicate the bag contents. After folding the top of the bag about the fold lines and against either side walls, one or the other indicia is visible to indicate the bag contents. The bag top is inhibited from opening after such folding by distorting the paper between the cuts to effect a latching action.

Abstract: A flanged tray and preform for making it. The preform includes a cut and scored paperboard blank having a polygonal bottom forming base panel. Each edge of the base is foldably joined to a radially outwardly extending, regular trapezoidal sidewall forming panel. The radially outermost portion of each sidewall panel carries a horizontal flange forming flap. The preform also includes a thin plastic sheet adhered to one surface of the paperboard blank. The plastic sheet covers the blank and extends over radially extending gaps between the side edges of next adjacent sidewall panels. The preform is placed in a female die with the plastic film facing upwardly. A male die presses the preform downwardly to form it into a tray having a peripheral, horizontally extending flange. The step of permanently attaching the plastic film to the paperboard blank may be carried out concurrently with the step of deforming the blank in the die.

Abstract: A compact disc (CD) package formed from a unitary paperboard blank. The package is relatively long and stiff in its pre-purchased form and is readily foldable widthwise only after purchase. To permit folding after purchase, any outer wrapping is removed and the purchaser pulls a tear strip to rip away two of three layers of paperboard spanning the width of the package. This removal permits relatively easy folding of the remaining paperboard layer. The package yields both the desired pre-purchase larger size to permit desired graphics and also inhibits shoplifting. The lesser size of the package after folding facilitates storage by the purchaser. The blank of FIG. 1 includes a first pair of panels (20, 22) in a first row, a second pair of panels (30, 28) in a second row, and a third pair of panels (14, 12) in a third row. The panels of the first pair are joined by a foldable joint (46). The panels of the second pair are joined by a first frangible connection in the form of a tear strip (40).

Abstract: A carton construction for paperboard cartons such as those adapted to certain fruit juices or other potable liquids which require a barrier to protect the liquid. Present paperboard cartons for such liquids often include polymeric barrier layer materials and foils laminated to the paperboard or other stiff, foldable and resilient sheet material. Such barrier layer/foil materials increase the difficulty of recycling the paperboard after container use. Further, during the carton forming/sealing process, the polymeric surfaces of the container are heated to activate a heat sealable bond. This heating tends to crystallize the polymer and generate polymeric odors that are transmitted to the liquid product. These difficulties are overcome in the present invention by a bag and spout construction wherein the bag and spout are removed from the carton after use, thus permitting recycling of both the paperboard carton and the bag.

Abstract: A paperboard container assembly for the microwave cooking and browning of food. The assembly is defined by an outer carton which surrounds a separate elongated tray. The tray is formed of a unitary blank of paperboard, a microwave interactive material and a polymer coating. The interactive material browns and crisps the food surface where contacted. The ends of the tray carry elongated, hollow feet to both support the tray bottom in vertially spaced relation to the carton bottom and to prevent shifting of the tray relative to the carton. Openings along the tray sidewalls and hollow feet prevent both scorching or burning of the paperboard and delamination of the polymer coating due to localized heat build-up.

Abstract: A food storage carton for the microwave cooking of a foodstuff packaged therein which is to be crispened or browned upon cooking. The carton is fashioned from a one piece blank of paperboard, one panel of which supports a foodstuff, such as a frozen pizza, and which panel is provided with a layer of microwave interactive material which becomes hot upon absorbtion of microwave energy. The construction of the carton is such that the frozen foodstuff is elevated above the carton bottom on a false bottom. Before microwave cooking, the top panel of the carton is ripped off, the carton placed in the oven and the foodstuff cooked.