PNEUMATIC CRACKER Russian patent published in 1999 - IPC

FIELD: performance, entertainment and advertising purposes. SUBSTANCE: pneumatic cracker has cylindrical body housing wad- diaphragm, package of flat ejected elements such as confetti and membrane- diaphragm. Pneumatic chamber is made fast to body of cracker and is sealed air-tight. Separable bursting membrane is installed between body and pneumatic chamber. Pneumatic chamber is connected by means of gas line via valve to bottle of compressed gas, for instance, air. When valve operates space of cylinder with compressed air communicates with pneumatic chamber. Excessive pressure grows in pneumatic chamber to value determined by strength characteristics of bursting membrane. With achievement of this level of pressure bursting membrane explodes and space of pneumatic chamber communicates with body of cracker. Pressure of gas acts on wad-diaphragm, pushes package of ejected elements out of body of cracker. EFFECT: enhanced spectacular effect. 1 cl, 1 dwg