An apparatus for manufacturing gusseted bulk bag liners having a continuous web of gusseted bulk bag liner material, wherein the continuous web is advanced along a predetermined path, includes four simultaneous cutting and resealing apparatus that engage longitudinally extending fold lines of the continuous...http://www.google.de/patents/US5984850?utm_source=gb-gplus-sharePatent US5984850 - Gusseted bulk bag liner and method of manufacture
