Coffee making assembly

摘要

A coffee making assembly for automatic, domestic or bar coffee machines, having a fixed cylinder wherein two opposite pistons reciprocate in order to define an infusion chamber therein, the upper piston, in its upper dead center outside the cylinder, being horizontally translated by a support carrying a funnel adapted to be axially aligned with said cylinder in order to convey a pre-set toasted and powdered coffee dose therein. All movements of said pistons and support are controlled by levers and cams operated by a single motor shaft.