Patent ID: 8622617
Filing Date: 2014-01-07
Classification: B65D

Abstract:
1. A container bag for containing particulate materials, the container bag comprising lateral walls, the particulate materials filling an inner space defined by the lateral walls, a bottom wall formed generally in a quadrangle shape and connected to bottom ends of the lateral walls, a cover connected to top ends of the lateral walls, and loops attached at the top ends of the lateral walls, wherein the cover, the lateral walls and the bottom wall are formed from a flexible material, wherein each side of the quadrangle bottom wall is recessed at a central area thereof and a bottom side of the quadrangle shape of each lateral wall is recessed at the central area thereof, wherein each lateral wall has a reinforcement strap which is extended from the top end to the bottom end of the lateral wall through a center of the lateral wall, and the loops are attached at the top ends of two adjacent reinforcement straps, respectively, and wherein recesses bordering between the bottom wall and the lateral wall form areas straightly interconnecting the top ends of the reinforcement straps and the loops, and the areas that straightly interconnect the top ends of the reinforcement straps and the loops are formed in a double-layered structure, wherein a ratio of a depth of a recess formed in the bottom wall and a length of a corresponding side of an imaginary quadrangle circumscribing the bottom wall is defined to be in a range of 0.02:1 to 0.25:1, when the depth is measured from the corresponding side of the imaginary quadrangle, and wherein a ratio of a depth of a recess formed in the lateral wall and a length of a corresponding side of an imaginary quadrangle circumscribing the lateral wall is defined to be in a range of 0.02:1 to 0.25:1, when the depth is measured from the corresponding side of the imaginary quadrangle.