Patent ID: 8490659

Claim:
An apparatus for filling flexible containers with a dense fluid such as cream, yoghurt, honey, fruit juice, and medicines, comprising: a vacuum device able to generate a vacuum by suction; a gas supply device, able to supply a pressurised gas; a filling device, able to supply a dense fluid; a valve comprising: a) a main tubular body having a main inner compartment, connected to the filling device, and a main duct able to engage a straw of the container; b) an obturator sliding in the main body between a forward position in which it closes off communication between the main duct and the main compartment and a retracted position, in which it allows communication, in which the obturator has an inner obturator duct and an obturator hole; c) a needle slidable in the obturator duct between a retracted, closed position in which it closes the obturator hole and a forward open position, in which the obturator hole is open; d) needle operating means able to move the needle in translation; wherein the obturator duct is connected to the vacuum device and the gas supply device, to remove any residues of fluid aspirate; and wherein the valve comprises an obturator security device able to constantly bias the obturator from the retracted position to the forward position, and a needle return mechanism able to constantly bias the needle from the forward, open position to the retracted, closed position.