Patent ID: 7879156

Claim:
An apparatus for washing hydraulic circuits involved in the preparation of milk-based beverages in machines for automatically dispensing hot drinks and/or in machines for preparing and supplying espresso coffee provided with a beverage delivery device, a milk source and a steam source, said circuits comprising at least one first hydraulic path which extends between the milk source and the delivery device, at least one second hydraulic path which extends between the steam source and the same delivery device, a motor-driven pump arranged along said first hydraulic path, intercept valve means located along said second hydraulic path, a source of washing liquid, a line between said source of washing liquid and a point located along the said first hydraulic path as well as valve means for intercepting said line, means for connecting the said first hydraulic path to the said second hydraulic path, valve means for connecting the said second hydraulic path to the said line located between said source of washing liquid and said point located along the first path and valve means for connecting the resultant hydraulic circuit to a discharge outlet.