System for safe and controlled filling of dispensers

摘要

A gas/liquid transfer device for delivering a fixed quantity of pressurized gas/liquid to a dispensing device including a fixed volume chamber for receiving the pressurized gas/liquid, the chamber being in fluid connection with a system of controllable filling and emptying valves and a discharge connector. The discharge connector is disposed downstream of the emptying valve is arranged to be operatively coupled by an operator to a hand held dispensing device. The discharge connector is tamper-proof and configured to prevent a fixed quantity of pressurized gas to be discharged without the dispensing device being attached to the discharge connector. The timer is configured to impose a predetermined time interval between successive transfers of the pressurized gas/liquid.