Closure with Liner

Patent metadata

Field	Value
Publication number	US-2017349339-A1
Application number	US-201715483798-A
Country	US
Kind code	A1
Filing date	Apr 10, 2017
Priority date	Jun 2, 2016
Publication date	Dec 7, 2017
Grant date	—

Abstract

A closure for a container is provided with a top portion and a skirt depending from an outer periphery of the top portion. A generally circular rim extends downwards from the lower surface of the top portion. A liner is attached to the closure between an outer surface of the rim and an inner surface of the skirt. The liner is configured to provide a fluid tight seal for containers having varied neck dimensions and/or profiles. One or more projections extend into a space formed between the lower surface of the top portion, an inner surface of the skirt, and an outer surface of the rim, with the liner enveloping and being supported in the closure by the one or more projections.

First claim

What is claimed:

1 . A closure for a container, the closure comprising:
a top portion; an annular skirt extending downwardly from the top portion; an engagement element for attaching the closure to a container; a circular rim extending downwards from a lower surface of the top portion, the rim terminating at a lower end lying along a generally horizontal plane; a space defined between the lower surface of the top portion, an inner surface of the annular skirt, an outer surface of the rim, and the plane on which the lower end of the rim terminates; one or more projections extending into or through the space; and a liner located within the space, the liner attached to, surrounding and supported by the one or more projections.

2 . The closure of claim 1 , at least one projection being attached to the lower surface of the top portion, and at least a second projection being attached to one of the inner surface of the annular skirt and an outer surface of the rim.

3 . The closure of claim 1 , the one or more projections comprising a single generally circular projection extending radially outwards from the circular rim and downwards from the lower surface of the top portion.

4 . The closure of claim 3 , the annular skirt having a maximum inner diameter of between 1.8 and 2.3 inches.

5 . The closure of claim 4 , the rim having a diameter as measured at the bottommost portion of the rim or between 1.5 and 1.7 inches.

6 . The closure of claim 5 , the portion of the top portion located radially inwards from the circular rim having a thickness that is less than a thickness of the top portion located radially outwards of the rim.

7 . The closure of claim 1 , at least one projection extending from the lower surface of the top portion at a first angle, and at least a second projection extending from the lower surface of the top portion at a second angle different from the first angle.

8 . A closure for a container, the closure comprising:
a top portion; an annular skirt extending downwardly from the top portion; an engagement element extending from the annular skirt to attach the closure to a container; a circular projection extending downwards from a lower surface of the top portion; a liner extending from the lower surface of the top portion and in-between an inner surface of the annular skirt and an outer surface of the projection; and one or more protuberances attached to at least one of the lower surface of the top portion, the outer surface of the projection and the inner surface of the annular skirt, the one or more protuberances at least partially enveloped by the liner.

9 . The closure of claim 8 , at least one protuberance being attached to the lower surface of the top portion, and at least a second protuberance being attached to one of the inner surface of the annular skirt and an outer surface of the projection.

10 . The closure of claim 8 , the one or more protuberances comprising a single generally circular projection extending radially outwards from the circular projection and downwards from the lower surface of the top portion.

11 . The closure of claim 10 , the annular skirt having a maximum inner diameter of between 1.8 and 2.3 inches.

12 . The closure of claim 11 , the rim having a diameter as measured at the bottommost portion of the rim or between 1.5 and 1.7 inches.

13 . The closure of claim 12 , the at least one protuberance being entirely enveloped by the liner.

14 . The closure of claim 8 , at least one protuberance comprising at least one protuberance extending from the lower surface of the top portion at a first angle, and at least a second protuberance extending from the lower surface of the top portion at a second angle different from the first angle.

15 . A method of forming a closure for a container, the method comprising:
providing a top portion; extending an annular skirt downwardly from the top portion; providing on the closure an engagement element for attaching the closure to a container; extending a circular rim downwards from a lower surface of the top portion, the rim terminating at a lower end lying along a generally horizontal plane; defining a space between the lower surface of the top portion, an inner surface of the annular skirt, an outer surface of the rim, and the plane on which the lower end terminates; providing one or more projections that extend into or through the space; pouring a liner into the space such that the liner flows around and surrounds the one or more projections; and allowing the liner to cure such that the liner adheres to the one or more projections.

16 . The method of claim 15 , further comprising attaching at least one projection to the lower surface of the top portion, and attaching a second projection to one of the inner surface of the annular skirt and an outer surface of the rim.

17 . The method of claim 15 , wherein the one or more projections comprises a single generally circular projection extending radially outwards from the circular rim and downwards from the lower surface of the top portion.

18 . The method of claim 15 , at least one projection having an aperture extending therethrough.

19 . The method of claim 15 , at least one projection having a non-uniformly textured surface.

20 . The method of claim 15 , the one or more projections comprising at least one projection having a first end and a second end, the first and second ends attached to one of the lower surface of the top portion, the inner surface of the annular skirt, and the outer surface of the rim, the first end being attached to a surface different than the surface to which the second end is attached.

Assignees

• Silgan White Cap LLC

Inventors

• Kim Sungsuk Steve
• Stephenson Timothy Graham

Classifications

• B65D53/06

  Sealings formed by liquid or plastic material · CPC title

• B65D51/005

  Closures provided with linings or internal coatings so as to avoid contact of the closure with the contents · CPC title

• B65D47/106 Primary

  with devices for removing frangible parts of the pouring element or of its closure · CPC title

• B65D41/3442

  with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container (B65D41/3404 takes precedence) · CPC title

• B65D53/02

  Collars or rings · CPC title