Patent ID: 7464768
Filing Date: 2008-12-16
Classification: B25F

Abstract:
1. An intake and exhaust guide device for pneumatic tool comprising: a pneumatic tool including a handle with a cock and a body; one end of said body furnished with a tool assembly; an inner side of said cock furnished with a valve assembly, and an outer end of said valve assembly furnished with a cylindrical hole extended out of said handle; said cylindrical hole connected with a pressure shunt connector; a pressure shunt connector, of which one end furnished with a screw rod, while other end thereof furnished with a main base having a through elongate hole in center thereof; the center of said screw rod having a ring-shaped groove with a suitable depth; one side of said main base having a side base with a screw hole and a bottom hole on bottom thereof; said bottom hole in said side base and a ring-shaped groove in said screw rod being in communication through a straight hole of the side base; an extension rod having a hollow stempart with a suitable length, and one end thereof furnished with outer threads, while other end thereof furnished with a hexagonal connector having a screw hole; said extension rod mounted in and through the through elongate hole of said pressure shunt connector, while one end thereof mounted in a screw hole in one end of said handle; a first pressure tube connected with a connector to the main base of the shunt connector at one end and connected with a first three-way connector to an intake pressure source at the other end; a second pressure tube connected with a connector to the side base of the shunt connector at one end and connected to a muffler at the other end; both pressure tubes being fastened together in parallel at a point between their respective ends, while the ends are separated from each other.