Abstract: A multi-station rotary blow molding machine having a plurality of separable blow molds angularly arranged in a serial fashion in a circular array within the machine. Each mold is comprised of two mold sections mounted for simultaneous movement toward and away from one another in a direction generally parallel to the rotational axis of the machine. An air supply manifold is provided for supplying air for both blowing articles and controlling certain portions of the molding machine for predetermined portions of a revolution of the molding machine. The mold sections are cooled in groups, each of the sections having an internal fluid path with adjacent mold sections being interconnected so that cooling fluid is passed serially between adjacent mold sections of each group.

Abstract: This disclosure relates to an apparatus for blow molding articles of the type having a plurality of split mold moving along a continuous path in which pairs of mold bodies define a mold chamber in which an extruded parison is inflated to a desired configuration, the improvement being the formation of each mold body in the form of first and second relatively slidable mold sections operable through cam follower and linkage means for sliding the sections relative to each other for increasing the predetermined configuration of the mold chamber to facilitate the release of the blown articles as well as scrap from the mold chambers.