Patent ID: 7779649

Claim:
A blow head mechanism comprising a blow head which is locatable on top of a closed blow mold in an I. S. Machine when the closed blow mold supports a formed parison, said blow head being supplied with pressurized air, when on top of closed blow mold, to form the parison into a bottle and, following bottle formation, to cool the interior surface of the formed bottle so that the blow mold can be opened and the bottle removed from the blow mold, a support for supporting said blow head, said blow head including a blow tube having an opening at the bottom thereof, a first displacement mechanism arranged and configured to displace said support, and a second displacement mechanism arranged and configured to displace said blow tube with respect to said support and said blow head, said second displacement mechanism including a profiled displacement motor, wherein said blow tube may be displaced between an up position whereat said blow head is on top of a closed blow mold and whereat the bottom opening of said blow tube is proximate the top of blown parison supported by the closed blow mold and a down position whereat said blow head is on top of the closed blow mold and the bottom of said blow tube is located proximate the bottom of a blown parison supported within the closed blow mold, wherein said profiled displacement motor is configured to displace said blow tube in accordance with a displacement profile while said blow molds are closed and said blow head is on top of said closed blank molds: from said up position to a first down position vertically downwardly from said up position following the blowing of the parison into a bottle, from said first bottom down position to a second up position vertically upwardly from first down position following the location of said blow tube at said first down position, from said second up position to a second down position vertically downwardly below the location of said blow tube following the displacement of said blow tube from said first down position to said second up position, and from said second down position to a third up position vertically upwardly from said second down position following its location at said second down position.