Closure assembly and package with closure assembly

Patent metadata

Field	Value
Publication number	US-12534276-B2
Application number	US-202418602487-A
Country	US
Kind code	B2
Filing date	Mar 12, 2024
Priority date	Mar 12, 2024
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

A polymeric closure assembly includes inner and outer shells, and a liner. The inner shell includes a top wall portion and a skirt portion. The top wall portion of the inner shell forms an opening therein. The skirt portion of the inner shell includes a thread formation. The outer shell includes a top wall portion and a skirt portion. The top wall portion of the outer shell forms an opening therein. The liner attaches to an interior surface of the top wall portion of the inner shell and a finish of the container. The liner includes a substrate layer, a separable layer, a foil layer, and an adhesive layer. The separable layer assists in separating the liner into two pieces.

First claim

What is claimed is:

1 . A polymeric closure assembly comprising:
a polymeric outer shell including a polymeric top wall portion and a polymeric annular skirt portion, the polymeric top wall portion of the polymeric outer shell forming an opening therein, the polymeric annular skirt portion of the polymeric outer shell depending from the polymeric top wall portion of the polymeric outer shell, the polymeric top wall portion of the outer shell including an exterior surface and an interior surface; a polymeric inner shell including a polymeric top wall portion and a polymeric annular skirt portion, the polymeric top wall portion of the polymeric inner shell forming an opening therein, the polymeric annular skirt portion of the polymeric inner shell depending from the polymeric top wall portion of the polymeric inner shell, the polymeric top wall portion of the polymeric inner shell including an exterior surface and an interior surface, the polymeric annular skirt portion of the polymeric inner shell including an exterior surface and an interior surface, the interior surface of the polymeric annular skirt portion of the polymeric inner shell including a thread formation for mating engagement with a thread formation of a container, the polymeric inner shell residing within the polymeric outer shell; and a liner being configured to be attached to the interior surface of the polymeric top wall portion of the polymeric inner shell and a finish of the container, the liner including a substrate layer, a separable layer, a foil layer, and an adhesive layer, the separable layer being located between the substrate layer and the foil layer, the foil layer being located between the separable layer and the adhesive layer, the separable layer configured to assist in separating the liner into two pieces.

2 . The closure assembly of claim 1 , wherein the thread formation of the polymeric inner shell is an internal thread formation for mating engagement with an external thread formation of a container.

3 . The closure assembly of claim 1 , wherein the interior surface of the polymeric top wall portion of the polymeric outer shell includes a plurality of torque-transfer ribs, the exterior surface of the polymeric top wall portion of the polymeric inner shell including a plurality of torque-transfer extending projections, the plurality of torque-transfer ribs and the plurality of torque-transfer extending projections cooperating to form a child-resistant feature by preventing or inhibiting opening of the container by only rotational movement.

4 . The closure assembly of claim 3 , wherein each of the plurality of torque-transfer extending projections has a generally straight side and an opposing ramped side.

5 . The closure assembly of claim 1 , wherein the liner further includes a second adhesive layer, the substrate layer being located between the second adhesive layer and the separable layer.

6 . The closure assembly of claim 1 , wherein the liner further includes a second adhesive layer and a second foil layer, the second foil layer being located between the second adhesive layer and the substrate layer.

7 . The closure assembly of claim 1 , wherein the liner further includes a second adhesive layer, a second foil layer and a third adhesive layer, the second foil layer being located between the second adhesive layer and the third adhesive layer, the third adhesive layer being located between the second foil layer and the substrate layer.

8 . The closure assembly of claim 1 , wherein the opening forming the polymeric top wall portion of the polymeric outer shell extends from about 60 to about 95 percent of the diameter of the polymeric top wall portion of the polymeric outer shell.

9 . The closure assembly of claim 8 , wherein the opening forming the polymeric top wall portion of the polymeric outer shell extends from about 70 to about 85 percent of the diameter of the polymeric top wall portion of the polymeric outer shell.

10 . The closure assembly of claim 1 , wherein the opening forming the polymeric top wall portion of the polymeric outer shell is substantially the same size as the opening forming the polymeric top wall portion of the polymeric inner shell.

11 . The closure assembly of claim 1 , wherein the exterior surface of the polymeric annular skirt portion of the polymeric inner shell forms an outer retention ring extending outwardly, the interior surface of the polymeric annular skirt portion of the polymeric outer shell forming an inwardly-extending annular retention ledge, the outer retention ring and the inwardly-extending annular retention ledge assisting in preventing or inhibiting the polymeric inner shell from being separating from the polymeric outer shell.

12 . A package comprising:
a container having a neck portion defining an opening, the neck portion having an exterior surface and an interior surface, the container having a thread formation being located on the exterior surface of the neck portion; and a polymeric closure assembly configured for fitment to the neck portion of the container, the polymeric closure assembly including a polymeric inner shell, a polymeric outer shell, and a liner, the polymeric outer shell including a polymeric top wall portion, a polymeric annular skirt portion, the polymeric top wall portion of the polymeric outer shell forming an opening therein, the polymeric annular skirt portion of the polymeric outer shell depending from the polymeric top wall portion of the polymeric outer shell, the polymeric top wall portion of the outer shell including an exterior surface and an interior surface, the polymeric inner shell including a polymeric top wall portion, a polymeric annular skirt portion, the polymeric top wall portion of the polymeric inner shell forming an opening therein, the polymeric annular skirt portion of the polymeric inner shell depending from the polymeric top wall portion of the polymeric inner shell, the polymeric top wall portion of the polymeric inner shell including an exterior surface and an interior surface, the polymeric annular skirt portion of the polymeric inner shell including an exterior surface and an interior surface, the interior surface of the polymeric annular skirt portion of the polymeric inner shell including a thread formation for mating engagement with the thread formation of the container, the polymeric inner shell residing within the polymeric outer shell, the liner being configured to be attached to the interior surface of the polymeric top wall portion of the polymeric inner shell and a finish of the container, the liner including a substrate layer, a separable layer, a foil layer, and an adhesive layer, the separable layer being located between the substrate layer and the foil layer, the foil layer being located between the separable layer and the adhesive layer, the separable layer configured to assist in separating the liner into two pieces.

13 . The package of claim 12 , wherein the interior surface of the polymeric top wall portion of the polymeric outer shell includes a plurality of torque-transfer ribs, the exterior surface of the polymeric top wall portion of the polymeric inner shell including a plurality of torque-transfer extending projections, the plurality of torque-transfer ribs and the plurality of torque-transfer extending projections cooperating to form a child-resistant feature by preventing or inhibiting opening of the container by only rotational movement.

14 . The package of claim 12 , wherein the liner further includes a second adhesive layer, the substrate layer being located between the second adhesive layer and the separable la

Assignees

• Closure Systems Int Inc

Inventors

• Owen Robert H

Classifications

• B65D2401/60

  Tearable part both of the container and of the closure · CPC title

• B32B2435/02

  for containers · CPC title

• B32B2307/748

  Releasability · CPC title

• B65D51/22

  having means for piercing, cutting, or tearing the inner closure · CPC title

• B65D41/34

  Threaded or like caps or cap-like covers {provided with tamper elements formed in, or attached to, the closure skirt} · CPC title