CONTAINER Russian patent published in 1995 - IPC

FIELD: transportation and storage of securities, concentrates of metals and other loose materials. SUBSTANCE: container has housing with bottom and cover. Found on cover ribs whose height decreases in middle part of narrow sides. Made on bottom are at least four projections connected by bridges. Dimensions of outer or inner projections within limits are equal to inner and outer dimensions of ribs, respectively, and height of ribs on cover narrow sides is less than height of projections by thickness of man fingers. Each of four projections adjoins only one rib of cover at stacking. Projections are distributed over bottom surface so that at least one of all equal quarters of bottom surface has no projection. EFFECT: enhanced reliability of storage of containers in stack. 5 cl, 3 dwg