FLEXIBLE CONTAINER Russian patent published in 1996 - IPC

FIELD: transportation and storage of lose, preferably powder or granular materials. SUBSTANCE: container has insert with at least one hanger for securing the insert in outer container in correct position relative to container. hanger means form ventilation channels to evacuate air from insert in process of filling container with powder loose material and after filling up. Hangers can be made tubular to form ventilation channels. The latter can be adjusted by means of one-way valve. EFFECT: enlarged operating capabilities. 8 cl, 12 dwg