Apparatus for blow molding containers

Claim 1

In a blow molding apparatus for producing hollow containers from a thermoplastic parison, the combination comprising: a. a split, hollow blow mold including two movable mold halves which provide a cavity to receive said parison and have an axial neck opening in their bottom surfaces; b. means to open and close both said mold halves including a platen for each mold half; c. a support structure attached to only one of said mold halves and extending downwardly therefrom, and being free of engagement with the other of said mold halves when said mold halves are in the closed position including i. a first generally U-shaped bracket having its upper end attached to one of said platens and its lower end extending below said mold half carried by said one platen, said lower end including a pair of opposed side plates which are provided with vertically extending slots therein, ii. a second generally U-shaped bracket having a pair of opposed side plates engaging said side plates of said first Ushaped bracket and movably coupled thereto by bolts received in said slots in said first U-shaped bracket; d. a blow pin assembly mounted on said support structure for vertical adjustment and having its outer end in axial alignment with said neck opening; and e. power means supported by said second U-shaped bracket and coupled to the lower end of said blow pin and adapted to move said outer end of said blow pin into and out of said neck opening.