B05B 11/02

Single-unit, i.e. unitary, hand-held apparatus {comprising a container and a discharge nozzle attached thereto}, in which flow of liquid or other fluent material is produced by {the muscular energy of} the operator at the moment of use {or by an equivalent manipulator independent from the apparatus } the flow being effected by a follower, e.g. membrane, floating piston, in container for liquid or other fluent material