US Patent 7658197 Smoking pipe with cleaning valve

A smoking pipe having a cleaning valve includes a pipe body with an internal bore. A combustion chamber is communicably connected with the bore. A cleaning valve is mounted adjustably within the bore. The valve includes a longitudinal channel and the valve is alternatable between a first position wherein the channel is communicably interconnects an orifice in the mouthpiece of the pipe and the combustion chamber and a second position wherein the channel is fully exposed so that it may be quickly and completely cleaned.