Device for dispensing metered portions of a product contained in a pressurised receptacle

摘要

The dispenser according to the invention comprises a piston 5 sliding in a bore 4 with one face subjected to the pressure of the tank coming from the pipe 11 and one face turned towards a chamber 4a set in communication selectively with the pipe 11 and with the atmosphere by manual action on a slide valve 7 whose length determines the volume of the dose delivered. <IMAGE>