BOX FOR SANDWICHES CUT DIAGONALLY Russian patent published in 2009 - IPC B65D5/20 

FIELD: packaging industry.

SUBSTANCE: box is made from cardboard work piece and provided with three triangle end walls being interconnected by rectangular side walls forming container of triangular prism shape. One side wall of container is hinge-connected with the other wall to make hole for food product inserting and removing and forming cover for hole closing. Besides the hole edges are provided with turned down skirting, and cover periphery overlaps the skirting when cover is in closed position. The cover is made so that it can be fixed to skirting for box content sealing. At the same time the box is made from cardboard, which is capable of being heat-sealed on the surface forming the internal surface of container. The cover periphery is fixed by heat-sealing to the turned-down skirting surrounding container hole for sealing container content. At the same time the heat-sealed cover connection with the above-mentioned skirting is made so that in can be damaged to open container and get access to sandwich by ensuring doubled parallel line with partial cutting along skirting. In addition one of the above mentioned lines is located in the point of each skirting crossing the adjacent wall, while the other line is located at a distance from the first line so as skirting may be damaged to open cover.

EFFECT: package as disclosed by this invention can be easily and conveniently used; it is sealed and made of material capable of complete biochemical decaying.

9 cl, 17 dwg