Cargo bag with reinforced triangular lifting panels

Claim 1

A cargo bag of flexible material for transportation and storage of bulk material and including four upstanding side walls, a bottom, and an upper filling opening, said cargo bag being characterized by four triangular lifting panels formed integrally with and extending upwardly from the upper edge of said side walls, said triangular lifting panels each including wide lower ends, inwardly tapering sides, and substantially pointed upper ends, said substantially pointed upper end of each of said triangular lifting panels being positioned above a corresponding corner of said cargo bag, said wide lower ends of each of said triangular lifting panels being integrally joined with and extending upwardly in substantial alignment with half of the upper edges of two adjacent side walls, and lifting loop means supported by said lifting panels for supporting and moving said cargo bag from one location to another whereby said triangular lifting panels serve to distribute the weight of the material over the width of all of said side walls when said cargo bag is lifted by said lifting loop means, wherein said lifting loop means comprises strap web material extending along and secured to the inwardly tapering sides of said triangular lifting panels, and said strap web material extending upwardly from the substantially pointed upper end of each of said triangular lifting panels and forming a lifting loop thereabove.