Patent ID: 8034281

Claim:
A method of manufacturing a container system with an injection control unit having an injection unit body, 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, the second container having a body recess with at least one of a recess top and bottom corner and at least one recess vertical edge, 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 for creating an expandable molding balloon, the injection unit body having an interior edge with a generally oval configuration; 3) selectively regulating the flow of the preform material to generate at least one of a recess top and bottom corner and vertical edge wall thickness of the second container; 4) forming at least one of the recess top and bottom corner and vertical edge wall thickness to be thinner than the second body wall thickness of the second container; 5) molding the expandable molding balloon into the second container to create the body recess in the second container such that only a portion of the first container is accommodated in the body recess and a remaining portion of the first container is exposed outside the body recess and protrudes outward beyond the second container, the body recess being adapted to releasably engage the first container, the first container being retained within the body recess by an opposing pair of lateral body protrusions; and 6) withstanding an impact upon the second container due to at least one of the recess top and bottom corners and vertical edges deforming in response to an impact thereagainst such that rupture of the second container is prevented.