SHUR STOP

A stopping system for gas flowing through polyethylene pipes consisting of valves and fittings for controlling the flow of gas, excluding a stopping system for use in water and sewer pipelines; Valves for controlling and regulating the flow of gases not being parts of plumbing, heating, cooling installations or machines, and excluding valves for use in water and sewer pipelines; Control valves for regulating the flow of gases, excluding control valves for use in water and sewer pipelines; Flow switches for monitoring and controlling the flow of gases, excluding flow switches for use in water and sewer pipelines; Pipeline communication systems for transferring data over gas distribution pipeline networks, comprised of computer hardware, software, modems and communication cables, excluding pipeline communication systems for use in water and sewer pipelines