Conwin Carbonic Co. Los Angeles suppliers of Balloon Inflators, Balloon Accessories, Automotive Regulators, Hoses & Fittings, Replacement Parts, Safety Equipment, Cylinders and Portable Helium. The Conwin Carbonic Company supplies the world with American-made industrial components, extruded & molded accessories, and custom solutions that power the balloon industry and beyond. Inventor of the balloon inflator market in 1960.