Method for the filling and emptying of a receptacle

Abstract

A method for the multiple filling and emptying of a receptacle with pourable product having low bulk density. The method comprises the following features: a) providing a flexible and air-permeable fabric container with at least one access port as a receptacle; b) filling the fabric container with product by applying a negative pressure to the fabric container and sucking the product through an opened access port into the fabric container, until a predetermined filling weight is reached, and closing the access port; c) emptying the fabric container, by connecting an access port to a discharge device and opening the access port and sucking the product into a conduit system or a reservoir until the fabric container is evacuated and has folded up; and d) closing the access port.

Dependencies are inferred from the claim text.