PNEUMATIC GUN Russian patent published in 1997 - IPC

FIELD: pneumomechanical treatment of materials; cleaning and emptying hoppers with loose or sticky materials, eliminating clogging of air transport lines, creating fluidized bed, shelling seeds, turbulizing liquid flows. SUBSTANCE: pneumatic gun has receiver and nozzle connected with receiver. Flexible diaphragm installed at end face surface of nozzle divides inner space of receiver into large space accommodating the nozzle and smaller space. Larger and smaller are provided with unions to connect compressed gas main line. Smaller space has additional union through which space communicates with atmosphere through controlled valve. End face surface of nozzle under diaphragm made to suit shape of nozzle is covered by seat. EFFECT: enlarged operating capabilities. 5 cl, 1 dwg