Patent ID: 7461703

Claim:
An air-inlet controlling assembly for a pneumatic tool having a gun shaped shell with a chamber and a handle communicated with the chamber, and the air-inlet controlling assembly comprising an air-inlet assembly adapted to be mounted in the shell and having an inlet tube adapted to be mounted in the handle and having an inner end; and an airtight sleeve mounted around the inner end of the inlet tube and having a curved end adjacent to the inner end of the inlet tube; and a washer mounted around the inner end of the inlet tube; a cylinder assembly adapted to be mounted in the shell, connected to the air-inlet assembly and having a cylinder adapted to be mounted in the chamber and having a body adapted to be mounted in the chamber, contacting closely with the curved end of the airtight sleeve and having a front end and a rear end; a front connecting element connected with the front end of the body; and a rear connecting element connected with the rear end of the body; and a rotor mounted rotatably in the cylinder; and a control valve connected to the cylinder assembly.