Patent ID: 7228607

Claim:
A pneumatic/hydraulic riveter comprising: a body, said body comprising an air pump, a compressor motor, a forward rotation air intake hole in air communication with said compressor pump, a fluid intake hole in communication with said compressor pump, a reverse rotation air intake hole in communication with the compressor pump, a lever adapted to drive said air pump, a hydraulic unit, a riveting unit, and an exhaust hole, said riveting unit being driven to perform in the sequence of a forward rotation action, a pulling action and a reverse rotation action when said lever is biased, said exhaust hole being for exhaust of air from said compressor motor when said lever is released; and a valve unit mounted inside said body, said valve unit comprising a control valve and a socket set, said control valve being movable relative to said socket set to a first position to provide a forward rotation control air loop, a second position to provide a pulling control fluid loop, and a third position to provide a reverse rotation control air loop in such a manner that when one loop is provided the other two loops are closed, said forward rotation control air loop being in air communication between said compressor motor and said forward rotation air intake hole during forward rotation action of said riveting unit, said pulling control fluid loop being in fluid communication between said hydraulic unit and said fluid intake hole during pulling action of said riveting unit, said reverse rotation control air loop being in air communication between said compressor motor and said reverse rotation air intake hole during reverse rotation action of said riveting unit.