An assembly for feeding liquid to the inlet port of a gravity feed sprayer. The assembly includes (1) a mixing cup of a known type commonly used to mix paint with solvent that is of stiff polymeric material and bears indicia on its side wall indicating the levels to which a plurality of different liquids...http://www.google.fr/patents/US6536687?utm_source=gb-gplus-shareBrevet US6536687 - Mixing cup adapting assembly
