Abstract: A nestable, stackable container comprised of a tray preferably erected from carton blank and having cut-away portions defined at the ends thereof, a tray of plastic film is formed within the carton tray through a deep drawn process in which the upper end of the film tray is folded over the upper edge of the carton tray. The film tray is extended outwardly through the cut-away end portions to form a pair of stacking lips which serve to prevent nested containers from becoming wedged into one another.

Abstract: The invention relates to a carton tray with a separate carton cover, the side walls of which form a continuous frame around the edges of the cover base and fit the upper end of the tray which is provided with downwardly foldable edge flaps intended to engage with the inside of the frame formed by the side walls of the cover when placed on the tray. The side walls of the cover are extended at their ends with end flaps lying along the inside of the frame formed by the side walls. At least some of the end flaps have a locking edge turned upwardly towards the base of the cover, said edges being substantially parallel to the cover base and at a predetermined distance below it.

Abstract: Method and apparatus for erecting carton blanks having preformed fold lines in which flat carton blanks are pressed into a pair of hollow forming shafts by a plunger assembly of complementary configuration to form hingedly connected lid and tray portions.The plunger assembly comprises a pair of movable plunger members which undergo synchronized translational and rotational movement and in cooperation with a swingable plate to erect hingedly connected sidewalls of the tray and lid portions. When the side panels of the lid and tray portions of the carton are erected, they are held by the plunger assembly against stationary bottom portions of the shafts. Finger assemblies undergo rotational and reciprocating motion to fold glue bearing edge flaps of the lid and tray portion into their assembled position to maintain associated side panels in their erected position to enable the glued portions to "set". A novel carton blank which is provided with "biasing tabs" is also described.