Simultaneously blow molded container and closure
View Patent ↗A method of producing a container and a closure comprises blow molding a body comprising a container portion and a closure portion joined together, and separating the closure portion from the container portion. A container and/or a closure produced according to the method are also disclosed, as well as an intermediate product for producing a container and a closure.
1. An intermediate product for making a container comprising:
a blow-molded single-piece hollow body comprising a container portion, a closure portion and a central moil portion disposed between the container portion and the closure portion;
the container portion includes a mouth, a bottom, and a container central axis extending through a center of the mouth and the bottom;
the closure portion includes a perimeter defining a cavity having an open end, a closed end, and a closure central axis extending through a center of the open end and the closed end, wherein the closure central axis is aligned parallel with the container central axis; and
the central moil portion includes an upper section proximate the closure portion, a lower section proximate the container portion, and a midsection between the upper section and lower section, the midsection having a cross-dimension in plan view smaller than either the upper section or lower section,
wherein the perimeter of the closure portion is configured for mating engagement about the mouth of the container portion when the central moil portion is removed.
2. The intermediate product for making a container of claim 1 , wherein the closure portion includes at least one protrusion extending perpendicular to the container central axis prior to removal of the central moil portion.
3. The intermediate product for making a container of claim 1 , wherein the closure portion includes at least two distinct protrusions adapted to engage an indentation on the container.
4. The intermediate product for making a container of claim 1 , wherein the central moil portion in plan view is circular.
5. The intermediate product for making a container of claim 4 , wherein the container in plan view has a rectangular shape.
6. The intermediate product for making a container of claim 1 , wherein at least one of the container portion or the closure portion has a substantially round cross-section in a plane perpendicular to the central axis.
7. The intermediate product for making a container of claim 1 , wherein at least one of the container portion or the closure portion has a substantially square cross-section in a plane perpendicular to the central axis.
8. The intermediate product for making a container of claim 1 , wherein the container portion includes at least one indentation and the closure portion includes at least one corresponding protrusion adapted to engage the at least one indentation.
9. The intermediate product for making a container of claim 1 , wherein the body is configured to receive an inter-blade moil driver that contacts the central moil portion below an upper moil trimmer location and above a lower moil trimmer location.
10. The intermediate product for making a container of claim 9 , wherein the central moil portion is adapted to engage the moil driver such that the moil driver imparts rotation to the body with respect to a trimmer.
11. The intermediate product for making a container of claim 9 , wherein the central moil portion is adapted to engage the moil driver below the closure portion and above the container portion.
12. The intermediate product for making a container of claim 1 , wherein the body is formed as a single-walled body.
13. The intermediate product for making a container of claim 1 , wherein the body is blow molded by inserting an air needle into the central moil portion.
14. A method of making a container, comprising:
blow molding an intermediate product for making a container comprising a single-piece hollow body comprising a container portion, a closure portion, and a central moil portion disposed between the container portion and the closure portion, wherein
the container portion includes a mouth, a bottom, and a container central axis extending through a center of the mouth and the bottom,
the closure portion includes a perimeter defining a cavity having an open end, a closed end, and a closure central axis extending through a center of the open end and the closed end, the perimeter of the closure portion configured for mating engagement about the mouth of the container portion when the central moil portion is removed, and further wherein the closure central axis is aligned parallel with the container central axis, and
the central moil portion includes an upper section proximate the closure portion, a lower section proximate the container portion, and a midsection between the upper section and lower section, the midsection having a cross-dimension in plan view smaller than either the upper section or lower section; and
separating, by cutting, the central moil portion from the container portion and the closure portion.
15. The method of claim 14 , wherein at least one of the container portion or the closure portion has a substantially round cross-section in a plane perpendicular to the central axis.
16. The method of claim 14 , wherein at least one of the container portion or the closure portion has a substantially square cross-section in a plane perpendicular to the central axis.
17. The method of claim 14 , wherein the container portion includes at least one indentation and the closure portion includes at least one corresponding protrusion adapted to engage the at least one indentation.
18. The method of claim 14 , wherein the central moil portion extends between the container portion and the closure portion.
19. The method of claim 18 , wherein the central moil portion is adapted to engage the moil driver such that the moil driver imparts rotation to the body with respect to a trimmer.
20. The method of claim 18 , wherein the central moil portion is adapted to be engaged by a moil driver below the closure portion and above the container portion.
21. The method of claim 14 , wherein the body is formed as a single-walled body.
22. The method of claim 14 , wherein the body is blow molded by inserting an air needle into the central moil portion.
23. The method of claim 14 , wherein separating the central moil portion from the closure portion and the container portion is performed directly following blow molding the body, to produce a finished container and closure product.
24. The method of claim 14 , wherein separating the central moil portion from the closure portion and the container portion comprises cutting the body with a trimmer.
25. The method of claim 18 , wherein separating is performed by an inter-blade moil driver configured to contact the central moil portion below an upper moil trimmer location and above a lower moil trimmer location.