Bulk storage silo

Claim 1

A flexible bag silo for bulk storage of granular material, comprising (a) a generally rectangular metal frame defining an open-bottomed peripheral framework adapted to be free standing on a firm horizontal floor; (b) a grid of interconnected bands of flexible material extending between parts of said frame; and (c) a flexible bag confined by said frame and said grid while resting on the floor, said bag having at least one filling tube near the top thereof, at least one discharge tube at a side of the bag near the bottom thereof to enable discharging of the bag while so resting on the floor, and a ventilator opening near the top thereof; (d) wherein said frame is formed of vertical posts, horizontal upper and lower bars and means for connecting said posts and bars, said means being capable of being readily assembled and disassembled to permit said posts and bars to be placed in a storage condition, said bands of flexible material extending horizontally and vertically between said posts and bars respectively, said bands being collapsible to facilitate disassembly to said storage condition; and (e) wherein said horizontal upper bars form a peripheral structure defining a horizontal plane, a series of suspension means serving to support the upper periphery of said bag from said peripheral structure.