Abstract: A transport device for pneumatically transporting particulate material from a container which is under pressure to a container which is under a lower pressure, in which successive pressure reduction is achieved by repeated deceleration and acceleration of the particulate material in the gas-particle flow and by diversion of the gas-particle flow. The transport device includes a number of rectilinearly arranged nozzles and cup-shaped containers placed downstream of the nozzles and alternating with the nozzles. The cup-shaped containers receive material flowing out of the nozzles. The containers are arranged such that a channel is formed around the outside walls of the containers through which the particulate material flows to a downstream nozzle.