Reinforced barbed closure

Patent metadata

Field	Value
Publication number	US-11578296-B2
Application number	US-201716463910-A
Country	US
Kind code	B2
Filing date	Nov 29, 2017
Priority date	Nov 30, 2016
Publication date	Feb 14, 2023
Grant date	Feb 14, 2023

Abstract

A closure assembly is provided. The closure assembly includes a cap portion, a tubular neck extending from a top surface of the cap portion, and at least one reinforcing member extending between the top surface of the cap portion and an exterior surface of the tubular neck, wherein the cap portion, the tubular neck and the at least one reinforcing member are a unitary integral piece. The closure assembly design provides stability to the tubular neck and the cap portion when a force is applied to either one or both of the tubular neck and the cap portion.

First claim

What is claimed is:

1. A closure assembly for cell culture containers comprising:
a cap portion comprising an annular sidewall extending from a top surface of the cap portion and an annular skirt extending downward from the top surface of the cap portion;
a shoulder having a first surface extending downward from the top surface of the cap portion and a second surface extending outward from an interior wall of the annular sidewall;
a tubular neck extending from the top surface of the cap portion; and
a plurality of reinforcing members extending between the top surface of the cap portion and an exterior surface of the tubular neck, wherein each reinforcing member of the plurality of reinforcing members is angled between the top surface of the cap portion and the exterior surface of the tubular neck,
wherein, for the closure assembly comprising the plurality of reinforcing members, the maximum load to which the closure assembly may be exposed to before breaking or cracking when the tubular neck is exposed to a bending force is increased by between 75% and 88% compared to a conventional closure assembly having no reinforcing members,
wherein the cap portion, the tubular neck and the plurality of reinforcing members are a unitary integral piece,
wherein the annular skirt is concentric with the annular sidewall and comprises a smaller diameter than the diameter of the annular sidewall, and
wherein the distance between the annular skirt and the first surface of the shoulder is between about 0.015 inches and about 0.035 inches.

2. The closure assembly for cell culture containers of claim 1 , wherein the plurality of reinforcing members are equally spaced around the circumference of the tubular neck.

3. The closure assembly for cell culture containers of claim 1 , further comprising a neck opening, a cap portion opening, and a passage extending within the tubular neck between the neck opening and the cap portion, wherein the passage is contiguous with the cap portion opening.

4. The closure assembly for cell culture containers of claim 1 , wherein the tubular neck further comprises at least one barb extending from the external surface of the tubular neck.

5. The closure assembly for cell culture containers of claim 1 , wherein the annular sidewall comprises internal threads extending from an interior wall of the annular sidewall.

6. The closure assembly for cell culture containers of claim 1 , wherein the distance between the annular skirt and the first surface of the shoulder is between about 0.020 inches and about 0.035 inches.

7. The closure assembly for cell culture containers of claim 1 , wherein the distance between the annular skirt and the first surface of the shoulder is between about 0.025 inches and about 0.035 inches.

8. The closure assembly for cell culture containers of claim 1 , wherein the distance between the annular skirt and the first surface of the shoulder is between about 0.030 inches and about 0.035 inches.

9. The closure assembly for cell culture containers of claim 1 , wherein the distance between the annular skirt and the first surface of the shoulder is between about 0.020 inches and about 0.030 inches.

10. The closure assembly for cell culture containers of claim 1 , further comprising at least one knurl on the outer surface of the annular sidewall.

11. The closure assembly for cell culture containers of claim 1 , wherein the cap portion is configured to threadably connect to a port of a cell culture vessel.

Assignees

• Corning Inc

Inventors

• Philippe James M
• Rammohan Aravind Raghavan
• Seeto Paul Kevin
• Wang Neng

Classifications

• B65D41/04

  Threaded or like caps or cap-like covers secured by rotation · CPC title

• C12M23/38 Primary

  Caps; Covers; Plugs; Pouring means · CPC title

• B65D41/023

  with integral internal sealing means · CPC title

• B65D47/06

  with pouring spouts or tubes; with discharge nozzles or passages (with slidable spouts B65D47/26) · CPC title