Abstract: 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.

Abstract: 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.

Abstract: A gas flow control device is provided in which a regulator body has an inlet bore and an outlet bore extending therein, into which inlet and outlet sleeves having highly polished inner surfaces are secured, with the inlet and outlet sleeves further having connected thereto, at an exterior of the regulator body, connectors for an inlet line, an inlet pressure gauge, an outlet line and and outlet pressure gauge. The inlet and outlet sleeves are made of corrosion-resistant tubing, as are the connectors, in a preferred embodiment.