Patent ID: 7892476

Claim:
A blow moulding device configured to provide and exhaust compressed air at a plurality of points of use ( 102 , 1605 ), said device comprising: a compressed air source ( 401 , 403 , 1600 ) for providing compressed air at said points of use; a plurality of quick exhaust valves ( 300 , 1604 ) positioned at said points of use for exhausting said compressed air; a compressed air manifold ( 400 , 402 , 1601 ) to allow a transporting of said compressed air to said points of use; a plurality of valves ( 501 , 504 , 1603 ) to effect said providing and exhausting of said compressed air; said device further comprising and characterised by: in operation, following blow moulding of a material at said plurality of points of use, compressed air contained within each mould cavity is exhausted via said plurality of quick exhaust valves ( 300 , 1604 ), however, compressed air from within said compressed air manifold remains pressurized and is not exhausted and the manifold is not replenished by compressed air from said each mould cavity; and at least one control valve ( 500 , 503 , 1602 ) to control said plurality of valves wherein a blow moulding cycle time is reduced.