A method for conveying a non-free flowing paste where the non-free flowing paste is loaded into a vessel or container having a conical lower portion designed to provide mass flow of the paste. A gas is applied to the vessel to cause the paste to flow out. The paste may be transported to another vessel...http://www.google.com/patents/US6709216?utm_source=gb-gplus-sharePatent US6709216 - Pneumatic conveying
