Closure assemby
AssigneeCrown Packaging Technology, Inc.
InventorPaul Robert Dunwoody
Life of this patent
Estimating the term…
Abstract
A closure assembly comprising a two-part closure having a metal panel or disc (2) and a ring (3), and a container such as a glass jar (20). The ring (3) is substantially cylindrical with an axially upwardly extending sidewall and has a radially inwardly extending lower edge. The jar (20) terminates in a radially outwardly extending beaded rim (16) and the disc (2) has a curled circumference (8) such that this curl (8) co-operates with the beaded rim (16) of the container to provide a primary seal. In one example, in a metal ring (3), the lower edge is curled with equally spaced lugs (13) on the skirt wall. In a plastic ring, the upper rim feature may be omitted.
Claims25
-12. (canceled)
A container and two-part closure combination, the combination comprising:
- a container having a neck about which a screw thread is disposed;
- and
- a two-part closure, the two-part closure comprising:
- a disc having a center panel, a shoulder disposed about the center panel, and a feature extending from the shoulder, the feature configured to engage with the neck of the container in a snap-fit relationship;
- and
- a ring disposed about the disc, the ring having a projection that extends radially inwardly, the projection having a bottom surface and a top surface opposite the bottom surface, the bottom surface configured to engage the screw thread and the top surface configured to engage the feature so as to pry the feature over the bead.
A two-part closure configured for use with a container, the container having a neck about which a screw thread is disposed, the closure comprising:
- a disc having a center panel, a shoulder disposed about the center panel, and a feature extending from the shoulder, the feature configured to engage with the neck of the container in a snap-fit relationship;
- and
- a ring disposed about the disc, the ring having a projection that extends radially inwardly, the projection having a bottom surface and a top surface opposite the bottom surface, the bottom surface configured to engage the screw thread and the top surface configured to engage the feature so as to pry the feature over the bead.
A method of providing a container and two-part closure sub-assembly, the method comprising:
- attaching a ring of the two-part closure to the container to form the sub-assembly, the container having a neck about which a screw thread is disposed, and the ring having a projection that extends radially inwardly, the attaching step including disposing the projection below the screw thread;
- and
- supplying a disc of the two-part closure, the disc having a center panel, a shoulder disposed about the center panel, and a feature extending from the shoulder, the feature configured to engage with the neck of the container in a snap-fit relationship.
Dependencies are inferred from the claim text.