repeatability of the dispensing operations application_number US 52946500 A description with reference now to the figures a dispensing machine to dispense and or meter fluid products comprises a body 10 at the front of which is located at least one nozzle or group of dispensing nozzles 11 of a generally known type reached by dispensing ducts 12 that serve to convey preset amounts of fluid products into one or more cans c simultaneously or sequentially the dispensing machine body may take on different overall shapes and configurations primarily dictated by the transport or handling needs of the cans c as well as considerations of ergonomics and appearance which are not especially relevant to the present invention for these reasons the overall structure of the machine is not described in detail in the remainder of this description inside the dispenser body 10 dispensing units 13 are located each of which comprises a reservoir 14 for a fluid product connecting to a pumping unit 15 which in turn is connected to its respective dispensing duct 12 leading outside at the nozzle or group of nozzles 11 a filter 16 is preferably inserted between the reservoir 14 and the corresponding pumping unit 15 a stirring member 17 of a generally known type u2014 for instance a rotary blade type as illustrated in.