The tamper evident container includes a base with a base hinge panel and a lid with a lid hinge panel. A hinge connects the panels. A frangible line extends from an edge of the lid hinge panel to a first point on the panel and then outwardly to the hinge. The frangible line crosses the hinge and extends inwardly to a second point on the base hinge panel. From the second point the frangible line extends to an edge of the base hinge panel. When the container is initially sealed, the frangible line separates upon the application of an upwardly directed force to a first portion of the lid hinge panel while a second portion of the lid hinge panel is held in a fixed position or moved downwardly. The separation of the frangible line creates two grasping portions that can be used to pull the lid from the base.

A corrugated plastic box and a method for manufacturing a corrugated plastic box from a blank are provided. The method includes the steps of forming rounded edge seals on the perimeter edges of the blank, pre-sealing portions of the blank to form a plurality of areas in which major and minor flap slots and a glue tab are desired, ultrasonically scoring the blank to form a plurality of flap score lines, and cutting the blank through the plurality of pre-sealed flap slots and glue tab, leaving a sealed edge.

A container for the shipment and display of a food product includes a four-sided, collapsible, corrugated plastic sleeve that is selectively enclosed by a pair of opposing plastic trays. Each tray includes inner and outer flanges which are formed along the periphery of a planar plate in a spaced apart relationship and together define a continuous groove dimensioned to receive an open end of the sleeve. The inner flange includes a tapered interior surface which widens the groove towards its distal end to facilitate the process of aligning and inserting an open end of the sleeve therein. A series of projections, each semicircular in lateral cross-section, are formed onto the outer flange and are dimensioned to fittingly protrude through corresponding slots formed in the sleeve to retain the container in its assembled state during the process of packaging and transporting the designated product.

A fastener-free box with fast assembly is disclosed, comprising a baseboard, a front board, a rear board, a left board, a right board, and a cover board. An insert-connection structure that is configured to form an insert connection with a respective adjacent board is integrally formed on each of the board; any three perpendicular boards are configured to form an interlocking structure among them; and, a connection structure configured to couple with each other is integrally and individually formed on each of the cover board and the rear board. The structure of the box is simple. In addition, an interlocking structure can be formed after the box is assembled, enabling an even more robust box structure. Furthermore, the box is ideal for outdoor use as it is water proof.

The invention is directed to straight, consistent body scores on plastic corrugated boxes and a process for making the body scores.

A long corrugated plastic folding container, having a folding structure in which a first side panel and latch side panel that oppose each other are provided from a floor panel, a first incision having the same height is provided in the first side panels, third incisions are provided thereabove, second incisions are provided therebelow, a second side panel is provided towards the front and rear edges of the floor panel, frames are attached to the upper end parts of the first side panels and second side panels, the first incisions of the first side panels fold inwards, and the second incisions and third incisions fold outwards, where the height dimension of the first side panel is greater than the short edge dimension, and, above the third incision serves as an upper short side panel, below the third incision and above the second incision.

A corrugated plastic box and a method for manufacturing a corrugated plastic box from a blank are provided. The method includes the steps of forming rounded edge seals on the perimeter edges of the blank, pre-sealing portions of the blank to form a plurality of areas in which major and minor flap slots and a glue tab are desired, ultrasonically scoring the blank to form a plurality of flap score lines, and cutting the blank through the plurality of pre-sealed flap slots and glue tab, leaving a sealed edge.

The invention relates to a container for liquids, such as beverages and oils, comprising a casing enveloped by a shell and a valve for dispensing the liquid from the container. The casing and the shell are, at least locally, positively fixed relative to each other.

The invention is directed to straight, consistent body scores on plastic corrugated boxes and a process for making the body scores.

A corrugated plastic box and a method for manufacturing a corrugated plastic box from a blank are provided. The method includes the steps of forming rounded edge seals on the perimeter edges of the blank, pre-sealing portions of the blank to form a plurality of areas in which major and minor flap slots and a glue tab are desired, ultrasonically scoring the blank to form a plurality of flap score lines, and cutting the blank through the plurality of pre-sealed flap slots and glue tab, leaving a sealed edge.