Patent ID: 8277288

Claim:
A particle blast cleaning apparatus, comprising: a. a container having a container exit, said container defining an internal cavity, said internal cavity being configured to prevent substantial pressure leakage out of said internal cavity and to have particles disposed therein; b. an internal passageway in fluid communication with said container exit, said internal passageway comprising: i. a feeder assembly having a feeder inlet at which particles are received from said internal cavity, a discharge station downstream of said feeder inlet at which particles are discharged, and a rotor interposed between said feeder inlet and said discharge station, said feeder inlet being in fluid communication with said container exit, said feeder not comprising an airlock; and ii. an exit configured to be placed in fluid communication with a delivery hose; and c. an inlet port connectable to a source of pressurized transport gas, said inlet port configured to deliver pressurized transport gas into said internal passageway downstream of said feeder inlet.