Patent ID: 8402807

Claim:
A blind-rivet gun, comprising: a gun header; a cylinder separated from the gun header; a piston slidably mounted in the cylinder, the piston comprising a piston header, the piston header and an inner surface of the cylinder form a seal to divide the cylinder into a first air chamber and a second air chamber; the cylinder comprising a first gas hole and a second gas hole, the first gas hole connected to the first air chamber, and the second gas hole connected to the second air chamber, the piston adapted to slide in the cylinder to generate inner high pressure gas by alternatively supplying outer high pressure gas to the first gas hole or the second gas hole; a tube connected to the gun header and the cylinder, wherein the tube is adapted to transmit inner high pressure gas generated by the cylinder to the gun header; and a supercharger connected between the tube and the cylinder, wherein the piston comprises a piston rod; the supercharger comprises a through hole, the piston rod is adapted to insert in the through hole to generate inner high pressure gas.