Patent ID: 8529160

Claim:
A hopper system for both delivery and reclamation of bulk abrasives, comprising: a. A closed, vacuum rated container; b. An inlet port with a hatch which is moveable between an open position for gaining access to the interior of the container and a closed position for closing the container; c. An outlet port for releasing the contents of the container, the outlet port having a valve which is moveable between open and closed positions for controlling the flow of contents from the container; d. A first pipe mounted inside the container and having a lower end passing through a lower wall of the container and an upper end terminating inside the container near an upper wall thereof; e. A second pipe mounted inside the container and having a lower end passing through a lower wall of the container and an upper end terminating inside the container near an upper wall thereof; f. a connector for attaching a vacuum source to the lower end of one of said pipes and in communication with the interior of the container via the upper end thereof for drawing a vacuum on the container; g. A reclamation inlet being defined by the lower end of the other of said pipes and in communication with the interior of the container via the upper end of said other pipe for drawing a vacuum on the container and communicating with a reclamation line for drawing abrasives into the interior of the container when the vacuum source is attached to the container via said one of said pipes; and h. A wearplate mounted in the interior of the container near its upper end and positioned such that the wear plate is in alignment with the upper end of said other of said pipes.