Abstract: A food package for cooking popcorn in a microwave oven which comprises an inner pouch containing the popcorn kernels, oils and seasoning, an outer paperboard carton in the form of an inverted truncated pyramid and a stand therefor which is adapted to be packaged inside the carton. When the package is to be used, the outer carton is inverted and opened, the stand is removed, erected and placed in a microwave oven. The inverted outer carton is then placed on the stand which insulates the lower portion of the carton. In this position, the popping area of the package is in a position to be affected by maximum microwave energy efficiency and is protected against heat loss for maximum heat efficiency whereby, a higher ratio of popped to unpopped kernels can be obtained.

Abstract: A reclosable paperboard carton and blank therefor, which carton has overlapping and glued end panels closing one end thereof. Once the end panels are opened, they can be reclosed by inserting a straight distal edge of one of the panels under an arcuate tab defined in the interior of the other panel. Using a plain, straight distal edge on the insertable panel reduces paperboard waste and manufacturing costs since exterior locking tabs are eliminated and single knife cutting can be used. In one embodiment, the tab is defined by an arcuate cut line and two spaced perforated lines extending from the arcuate line to the distal edge of the panel. In a second embodiment, the tab is defined by a cut-out recess extending from the distal edge of the panel and having an arcuate bottom edge.

Abstract: A telescoping container comprising a bottom section having a bottom wall and a plurality of side walls normal to the bottom wall and a cover section having a top wall and a plurality of side walls normal to the top wall; the side walls of the cover section extending on the outside of the corresponding side walls of the bottom section. A flap is externally secured to each of a pair of outer walls of the bottom section and a corresponding flap on corresponding walls extends inwardly of the cover section; this pair of flaps on the inner walls of the cover section passes the corresponding flaps on the outer walls of the base member when the cover section is placed on the bottom section and interlocks when the cover section is withdrawn. The top and bottom walls are caused to be bowed concavely. The bowing of these walls exerts outward forces on the interlocking flaps which, in turn, improves the locking action of the flaps when the cover section is fully extended from the bottom section.

Abstract: A carton having a front wall with a full width inner bottom panel extending therefrom provided with a cutout therein having end slits therein and a rear wall having an outer bottom flap extending therefrom and locking edges which are inserted into the cutout in the inner bottom panel. The side walls of the container have side bottom panels extending from each which have locking points adapted to be inserted into the cutout in the inner bottom panel. When pressure is applied to the bottom panels from the interior, the locking points in the outer bottom flap are locked into the end slits of the inner bottom panel cutout to lock the four bottom panels together.

Abstract: A sleeve is formed from sheet material, such as paperboard or the like, which sleeve is adapted to be wrapped about a tub having a tapered side wall. The sleeve is formed with two pairs of opposed side walls. One pair of the opposed side walls has the same taper as the wall of the tub and the other pair of opposed side walls is perpendicular to the top and bottom panels of the sleeve. The tub engages tuck flaps on the sleeve to hold the sleeve in place on the tub. The sleeved tubs can be stacked on their tops, bottoms, or on the perpendicular side walls.

Abstract: A rectangular take-out carton which includes a flanged tray and tapered locking cover is disclosed. The tray flanges along the opposed sides are outwardly and downwardly extending and have an outward and upward bias which locks them behind and in edge-to-edge engagement with folded back and secured marginal portions of the associated side closure panels of the cover which are normally biased laterally inwardly. The end flanges of the tray are outwardly and downwardly extending for engagement with downwardly extending tapered end closure panels of the cover to provide a carrying flange and closure combination which creates a thermal seal and permits the weight of the carton and its contents to be supported thereby. The cover lock is released by pushing down and pivoting the cover side closure panels outwardly against their normal bias to free the folded back marginal portions from their edge-to-edge contact with the opposed outwardly and upwardly biased side wall flanges of the tray.

Abstract: A glueless, tapered sidewall tray erected from a unitary blank of paperboard. The tray has a hexagonal base with trapezoidal upwardly and outwardly extending printed side panels hingedly connected to the base sides. Alternate first side panels have pairs of side flaps on opposite side edges with tabs on the upper edges of the side flaps remote from the connection of the flap to its associated first side panel. Inner flaps on second side panels are hingedly connected thereto at their tops and extend downwardly to a lower central slot which interrupts the hinged connections of the second side panels with the base sides. The inner flaps have tabs which lock in said lower central slots. The tabs on the upper edges of the side flaps of the first side panels are received in top central slots which interrupt the hinge line between the second side panels and their associated inner flaps to secure adjacent first and second side panels.

Abstract: A paperboard tray and a blank therefor is disclosed which is collapsible to form a carton. More specifically, the subject tray may be collapsed and sealed to hold a product and may then be subsequently opened and reformed into a tray for use in serving or cooking. A pair of handle flanges are provided defining carrying handles when the tray is opened and for structurally rigidifying the tray and preventing its inadvertent collapse.

Abstract: An expandable container, formed of a unitary blank of paperboard, including a planar base panel and a plurality of planar fins foldable over the panel to enclose a conical volume. The fins serially overlap and are self-locking in the closed position, and are expandable into the open position by a force exerted from the inside thereof. Such a force can be provided by the popping of corn kernels located therein when the container is heated in a microwave oven. The fins each are trapezoidal in shape, have an interior fold line separating each into a triangular area and a parallelogram shaped area, and are hingedly coupled to the next two adjacent fins.

Abstract: A two part paperboard container having adjustable vents is described and is intended for use with a sublimable composition. The container consists of an inner tubular member and an outer tubular sleeve member both of a truncated conical configuration. The inner tubular member, which is adapted to receive the sublimable composition, is in turn disposed within the outer sleeve member. The outer surface of the inner member is in frictional engagement with the inner surface of the outer sleeve member which functions to seal the carton. The inner member may be rotated relative to the outer sleeve member to at least partially align die cuts, provided in the walls of the tubular members, thereby exposing the composition to the air enabling it to sublime. Continued relative rotation of the tubular members will reset the die cuts in a nonaligned position thereby resealing the container.

Abstract: A carton is erected from a cardboard one-piece blank having a connected series of five central elongated panels and four pairs of side flaps, with the blank being erected to form a tray to receive a product before being folded and closed. In one embodiment certain elongated panels have concave or convex fold lines and the panels are proportioned to form a carton having a sculptured and tapered appearance.

Abstract: A container cover with straight sides having an interior interlocking flap configuration to adapt said cover to a taper-sided package tray comprising a center portion having vertical outer side walls equal in number to the tapered side walls of said package tray, a plurality of inner wall flaps each integrally formed with and hingedly attached along one edge thereof to a corresponding selected one of said vertical outer side walls and means integrally formed with said flaps for interlocking adjacent pairs of said flaps whereby when said flaps are folded inwardly into said cover, tapered, resilient, inner walls are formed to match and grasp the tapered sides of said package tray thereby centering said tray within said cover and maintaining said tray in its tapered configuration.

Abstract: A carton for holding an insert of air freshener material includes a front panel with outwardly bowed side edges and a spaced back panel having parallel upper and lower edges and converging side edges. First and second side panels connect the front and back panels. A top closure is formed of a plurality of flaps extending from the upper edges of the panels. The flaps extending from the front and back panels are sealed in overlapping fashion. The carton also includes a plurality of bottom flaps extending from the lower edges of the panels. The flaps extending from the front and back panels are also sealed in overlapping fashion.