Abstract: A container for a food product, such as pizza, has a bottom, two side walls, a rear wall and a front wall, all formed from a single blank of paperboard. A lid folds over the rear wall. Lid flaps depend from the lid on each side for insertion on an interior side of each of the side walls. The lid flaps have a retaining portion of greater height and a recessed portion. Diagonal corner walls extend between the side walls and the front wall. A slot locates in each corner wall for receiving a tab depending from the lid to lock the lid in a closed position. The slot and tabs have lower edge that incline in opposite directions.

Abstract: Carton apparatus includes lid members having locking tabs received in pockets formed in triple layer sidewalls. The intermediate layer of the sidewall defines a recess for receiving the locking tab, and forms a pocket when inner and outer sidewall layers are brought into contact with the intermediate sidewall layer. The intermediate sidewall layer includes locking edges which engage locking edges on the locking tabs. The tab-receiving pockets may be either open or closed.

Abstract: A carton with triple-thickness sidewalls formed from a one-piece unitary blank includes sidewalls and endwalls extending from a floor. Lid members extending from the endwalls cover the carton interior and arrangements for locking the lids in a closed position is provided. The sidewalls and endwalls are interlocked with a locking post arrangement to prevent pull-out.

Abstract: A triangular carton is made from biodegradable paperboard or cardboard material and is particularly suitable for flowable building materials. It has a rectangular rear panel and a pair of rectangular front panels as well as a triangular top panel and a triangular bottom. The carton can be folded from a one-piece blank provided with suitable flaps and tabs which serve to releasably interlock the various panels in the assembled state of the carton. The triangular carton lends itself to efficient stacking on shelves as well as to creative displays and unique advertising graphics. Its shape also allows the direct utilization of a roller for the application of material therefrom without requiring that the material be poured into an intermediate trough or tray. If an impervious liner is used the carton can be kept clean and disposed of in normal landfill.

Abstract: A collapsible, self-erecting, tray-type, one-piece carton having liquid-tight lower corners. The end walls of the carton each have a length greater than the width of the bottom wall and each have a pair of side edges that project a slight distance beyond the side walls, so that no opening exists at any lower corner of the carton where related side walls and end walls are joined to each other and to the bottom wall panel.

Abstract: A container for a flat food product is formed from a one-piece blank to provide a multisided container having a front panel, first and second opposing side panels, third and fourth opposing side panels, first and second perforated portions interconnecting said first and third opposing side panels and said second and fourth opposing side panels, respectively, a rear panel, and a top. The six-sided design provides less air space in the container, thus contributing to the maintenance of the temperature of the food product contained therein. Lock tabs located on minor flaps of the front panel secure the first and second opposing side panels into an upright position by interlocking under portions of the side panels. The perforated portions provide continuity between the side panels, and automatically provide hot air ventilation outlets when the container is assembled.

Abstract: A portable disposable container comprising a top closure including two inner centrally apertured panels independently lockable across the open upper end of the container in overlying relation to each other. An imperforate closure panel includes a remote handle flap for manipulation of the top container. The closure panel, upon a closing of the container, overlies the inner panels, sealing the openings therein. The handle flap is positioned immediately adjacent a similarly configured handle panel and is locked thereto by a locking extension wrapped about both handles components.

Abstract: A carton erected from carton material in cut and scored blank form, the carton comprising a lower tray structure comprising a bottom wall having flap connected tray side walls folded upwardly from the bottom wall, and an easy-open easy-close cover structure having a top wall having flap connected cover side walls folded from the bottom wall including a corner wall extending from the top wall between two adjacent spaced apart end edges of two adjacent cover side walls within a plane extending at an angle with respect to the angularly related planes of the two adjacent cover side walls. The cover structure is retained in closed relation by an opening formed in the corner wall and tabs formed from a portion of carton material defining the tray structure at the interconnection of the two adjacent tray side walls.

Abstract: The invention disclosed herein relates to a packaging try with a thermoformed inner lining. The packaging tray includes, internally, in each corner, a corner panel which is inclined toward the bottom of the tray such that it approaches the center of the bottom. The corner panel is inclined at an obtuse angle with respect to the bottom and to the walls which define the corner. Also disclosed is a unitary packaging tray blank from which the packaging tray is constructed.

Abstract: A container constructed from a cut and scored foldable blank of cardboard or similar material, the blank having a top wall, a back wall, a bottom wall and a front wall, all connected by score lines. A pair of outer side walls are connected to each end of the back wall and a pair of middle side walls are connected to each end of the front wall by score lines. A pair of bottom panels and a pair of inner side walls are connected to opposite sides of the outer side walls by score lines. All adjacent score lines or cut lines are offset relative to each other, each line terminating in one of a number of angle slits.

Abstract: An integral carton blank from which a carton is formed having an end with three upstanding carton walls forming a pair of spaced-apart outside corners with reinforcing corners nested within each outside corner. The reinforcing corners are formed of reinforcing shoulders integrally joined to the end walls of the carton. Each reinforcing shoulder has three panel portions, two overlying a side wall and one overlying an end wall. Substantial portions of the panels of the reinforcing shoulder engage a floor of the carton to provide improved compressive strength.

Abstract: A clamshell type carton bottom having integrally connected thereto a domed top with upper portions of side and front panels of the carton bottom defining seats on which there are seated seat members carried by side and front panels of the top and reversely turned so as to slope upwardly and outwardly while the side and front panels slope downwardly and outwardly. Each side panel of the bottom adjacent the front panel of the bottom is provided with a cut line which defines stop means so as to limit the movement of the top into the bottom when the carton is being closed. Further, the bottom front panel is provided with a locking flap which carries a locking tab which engages over the front seat member of the top to lock the top in place relative to the bottom.

Abstract: A foldable carton particularly useful for packaging produce. The carton includes a central panel and a pair of opposed exterior end panels and a pair of interior end panels affixed to the exterior end panels. A pair of supplementary interior end panels are affixed to each of the interior end panels and a supplementary interior end panel flap is affixed to each supplementary interior end panels. The carton has a pair of opposed side panels affixed to the central panel formed with a plurality of spaced apart side panel ventilation holes. A pair of side panel flaps are affixed to each end the side panels and a pair of opposed cover panels with ventilation holes are also affixed to the side panels. Forming the foldable carton involves folding the supplementary interior end panel flaps to overlie the supplementary interior end panels, folding the supplementary interior end panels to overlie the interior end panels and folding the side panel flaps to overlie each other.

Abstract: A carton having a tray and cover locked in closed position by means of a pair of detents extending forwardly and above the front wall of the tray. The detents are of double thickness being formed by overlapped extensions of the glue flaps and side walls of the tray. A pair of slots in the cover receives the detents in a closed position to lock the cover to the tray.

Abstract: A mailing and shipping container is described which is of rigid construction and simple design and which, once closed, resists opening without destroying the integrity of the structure. The container comprises a tubular sleeve generally of rectangular cross section and end closures at the ends. The end closures comprise overlying panels which have interacting tabs and slots and means for preventing the tabs from being withdrawn from the respective slots after insertion therein.

Abstract: The present invention discloses a blank and carton for packaging ice cream or the like comprising hingedly connected cover, rear, bottom and front panels. Left and right end flaps extending from each of the cover, rear, bottom and front panel end flaps. A pocket means formed in each of the carton ends for receiving a portion of the cover panel end flaps adjacent the rear panel for reforming the carton subsequent to the initial opening thereof. The pocket means includes rear panel end flaps forming exterior liners and the corresponding front and bottom panel end flaps forming interior liners. Membrane flaps are hingedly connected to the front panel and left and right front panel end flaps for forming a substantially continuous lip along a portion of the outer periphery of the carton.

Abstract: A container that includes a tray-type body with an integral interlocking cover, wherein the body front and side wall panels are interconnected at the front corners of the container by gussets that present openings for receiving portions of the cover side wall panels to lock the body and cover in a closed position.

Abstract: A ventilated grape box and a one-piece blank for forming it. The blank is formed from corrugated paperboard and is cut and scored to permit it to be folded into a stackable grape box without the need for fasteners. The upper edges of both ends of the box are provided with upstanding stacking tabs which are adapted to fit in complementary recesses in the lower edges of an identical box stacked above it. Each of two upper closure panels is provided with tabs which frictionally engage certain end panels to thereby maintain the upper closure panels closed after the box is filled with grapes. Certain end forming panels are folded to define a triangular column at each inside corner of the box, to thereby increase stacking strength.

Abstract: An octagonal carton formed from an integral prescored blank having a bottom wall with at least three side walls attached thereto. An opposite pair of the side walls include diagonal corner wall structures which are foldable with the side walls to form diagonal corner walls. The lid is attached to the third wall and is foldable over the two opposite side walls and secured to a fourth side wall attached to the bottom wall or secured by a wall on the lid edge to the bottom wall to form the fourth side wall. The lid and fourth wall structures include various securing structures to secure the carton when erected.

Abstract: A cardboard container having a dispensing opening formed in the lower portion of its front wall through which articles can be withdrawn. The container has a bottom wall that is elevated from its lower end. The front portions of the lower edges of the side walls and the lower edge of the front wall overhanging the front edge of the bottom wall, whereby the bottom wall has an area less than the cross-sectional area container space above the bottom wall. When a stack of articles are housed in the container with the lowermost article resting on the bottom wall it will overhang the bottom wall in the area of the dispensing opening and can be manipulated from the underside of its overhanging portion and removed from the container through the dispensing opening from the container.

Abstract: A carton for packaging ice cream, having several novel features, including full bottom panel end flaps which have a recess along a major portion of the outer marginal edge thereof which underlies the carton cover panel and front panel end flaps which have, along the upper edges thereof, lips coinciding with the recesses in the bottom panel full end flaps, and rear panel end flaps which overlie the other flaps and are secured thereto by single lines of adhesive extending along the edges of the front panel end flaps and up to the cover panel end flap lower edges or up onto the cover panel end flaps, depending upon whether or not the rear panel end flaps comprise breakaway tabs to be adhesively secured to the cover panel end flaps, as well as additional advantageous features, carton blanks and tubes for producing the same, and method of closing the carton ends, are all disclosed.

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.