Patent ID: 7025924

Claim:
A method of manufacturing a container system with an injection control unit having an opposing pair of recess bottom corners, an injection unit body and an expandable molding balloon, the method comprising the steps of: a) forming a first container of the container system; and b) forming a second container of the container system, the second container having two opposing parting lines and a second body wall thickness, comprising the steps of: 1) injecting a preform material into the injection control unit; 2) strategically moving an injection control member of the injection control unit with respect to the injection unit body to regulate a flow of the preform material to the expandable molding balloon; 3) expanding the expandable molding balloon; 4) molding the preform material into the second container; 5) extending a body recess upon the second container adapted to releasibly engage the first container; 6) thickening at least one of the pair of recess bottom corners of the body recess to have a recess bottom corner wall thickness which is at least identical to the second body wall thickness; and 7) withstanding an impact upon the second container due to the specified bottom corner wall thickness of the body recess.