Patent ID: 9624048
Date: 2017-04-18
CPC Classifications: B65D,B65G

Claim:
1. An improved bulk bag for a particulate material, providing dust control during content discharge into a receiving device with a receiving port of select dimension, the improved bulk bag comprising: a) a bag body having at least one side panel defining a first edge and an oppositely disposed second edge, a top panel, and a bottom panel, said top panel being secured to said first edge and said bottom panel being secured to said second edge of the at least one side panel to form a tubular receptacle for retaining particulate material, said at least one side panel being formed a strong, flexible, woven material and said bottom panel being piercable to permit content discharge; b) at least one engaging element disposed proximate to said first edge and adapted to cooperate with a hoist lifting system for raising and lowering the bag body; and c) an integrated skirt having a bag body engaging first skirt edge and an oppositely disposed telescopically displaceable second skirt edge extendable from a first bag body engaging position to a second receiving port covering position, where said second receiving port covering position projects beyond said second edge and overlaps the receiving port, said skirt incorporating a radially inward directed compression element to urge the skirt against the receiving port and releasably compress thereagainst; and where the skirt defines a continuous barrier between said bottom panel and the receiving port to prevent escape of dust from the receiving port.