Method of Making A Bayonet Sealing Closure For Containers and Lids

A method for forming a container assembly having a lid, a container and a cooperative closure mechanism defined by the lid and the container, the method comprising:

• providing a form including an interior wall and at least one flexible member biased toward the interior wall, the interior wall and the at least one flexible member at least partially defining a cavity of the form;
• injecting at least one form material substantially throughout the cavity to form a container assembly part within the cavity;
• and
• longitudinally retracting the interior wall relative to the at least one flexible member and the container assembly part from a forming position to an extraction position, wherein each of the at least one flexible member is biased inward toward the interior wall of the form and away from a side wall of the container assembly part;
• and
• separating the container assembly part from the flexible member.

A method for forming a container assembly having a lid, a container and a cooperative closure mechanism defined by the lid and the container, the method comprising:

• providing a first lid form and three flexible members coupled to and biased toward the first lid form, wherein the first lid form and the three flexible members are operable between a forming position defined by the first form member exerting a biasing force against the three flexible members, and an extraction position defined by the biasing force of the first form member being substantially removed from the three flexible members;
• creating a lid form cavity at least partially defined by the first lid form and the three flexible members disposed in the forming position;
• injecting at least one lid material substantially throughout the lid form cavity to form a lid;
• disposing the first lid form and the three flexible members in the extraction position, wherein the first lid form is moved distal from the lid and the three flexible members are biased away from a side wall of the lid;
• and
• separating the lid from the three flexible members.