SHELL FOR PACKING ARTICLES Russian patent published in 1996 - IPC

FIELD: packing. SUBSTANCE: shell made in form of polygonal section tube has two T-shaped slots in each rib to form bent outwards triangular flaps on bent inwards sections of faces. Made on sections of line of bend, adjoining end faces of tube, are cuts forming the flaps bent square to planes of faces. Each pair of flaps made on bent inwards sections of faces is bent outwards towards each other, and flaps arranged between bent outwards flaps are bent inwards. EFFECT: enhanced quality and reliability of packing. 3 dwg