Peening Machine

Author:  Charles E. Kamper & Richard R. Compton
Source:  US Patent 3,624,967
Doc ID:  1969045
Year of Publication:  1969
Abstract:  
This peening machine includes a storage reservoir coupled to a metering chamber and supplying a discharge gun and the machine is provided with a flow control reclaim unit. The control apparatus includes a by-pass conduit which purges residual blasting material from the metering chamber and the discharge ductwork, and returns it to the reservoir. The purging action is effectuated by suction from the a blower located in the reservoir, the suction being applied to the metering chamber via the by-pass conduit when the gun is inoperative. A metering platform below the reservoir orifice to preclude escape of the blasting material from the reservoir when the gun is inoperative.