Patent ID: 6923022

Claim:
A blowhead assembly for receipt over a parison finish to blow the parison within a blow mold and simultaneously cool the parison finish, which comprises: a blowhead body that includes: a first chamber at one end for receipt over the finish of a parison in a blow mold, at least one first passage in said blowhead extending from a first inlet to said chamber for directing cooling air onto the external surface of a parison finish in said chamber, a second chamber in said blowhead body spaced from said first chamber, at least one second passage in said blowhead body extending from a second inlet to said second chamber for directing blow air into said second chamber, and an exhaust passage in the blowhead body, a first tube extending from said second chamber through said first chamber for receipt within a parison finish in said first chamber for feeding blow air from said second chamber into the parison, and a second tube extending from said exhaust passage through said second chamber and through said first tube for receiving exhaust air from within the parison, said second tube being coaxial with said first tube, said second tube extending beyond a free end of said first tube, and said second tube having at least a free end that flares radially outwardly for deflecting blow air from said first tube radially outwardly within the parison.