Patent ID: 8117870
Filing Date: 2012-02-21
Classification: C03B

Abstract:
1. A blow head mechanism for use in blowing and cooling a parison in a blow mold, said blow head mechanism comprising: a blow head arm; a blow head lift mechanism for selectively raising and lowering said blow head arm between at least a first position, a second position that is lower than said first position, and a third position that is lower than said second position; a blow head support apparatus having a first end mounted on a bottom side of said blow head arm and an opposite second end extending downwardly therefrom, said blow head support apparatus having extended and contracted configurations and being biased from said contracted configuration toward said extended configuration; a blow head mounted under said second end of said blow head support apparatus; and a cooling tube having a first end and an opposite second end, said first end of said cooling tube being fixedly mounted from said blow head arm, said second end of said cooling tube extending downwardly through an aperture in said blow head; wherein when said blow head arm is in said first position said blow head is located above the finish of a parison in the blow mold; and wherein when said blow head arm is in said second position said blow head is located in engagement with the finish of the parison in the blow mold and the second end of said cooling tube is located proximate the top of the blow mold; and wherein when said blow head arm is in said third position said blow head remains located in engagement with the finish of the parison in the blow mold and the second end of said cooling tube is located below the top of the blow mold within the parison.