supply being effected by follower in container, e.g. membrane or floating piston

Full Title

Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour (B05B11/00 takes precedence) > characterised by means for supplying liquid or other fluent material > with pressurised or compressible container (aerosol containers B65D83/14); with pump > supply being effected by follower in container, e.g. membrane or floating piston