Beverage can having a grommet

Patent metadata

Field	Value
Publication number	US-10246250-B2
Application number	US-201615135181-A
Country	US
Kind code	B2
Filing date	Apr 21, 2016
Priority date	Apr 21, 2016
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

A drawn and wall ironed beverage can body, method for forming same, and a sealed and filled can, include a through-hole or aperture in the base. A grommet for charging a propellant in can is located in the aperture. The aperture has a burr that is located on the inboard side of the rim of the aperture.

First claim

What is claimed:

1. A beverage can body and grommet combination comprising:
a drawn and wall ironed can body including a dome in a base, a foot outboard the base, and an elongate ironed sidewall extending upwardly from the foot; the dome having an aperture therethrough and a wall about the aperture that terminates in a rim, the rim having an inboard side and an outboard side, wherein the inboard side is radially inward relative to the outboard side with respect to the aperture;
a burr located on the inboard side of the rim; and
a grommet disposed in the aperture.

2. The combination of claim 1 wherein the wall is an upstanding wall.

3. The combination of claim 2 wherein the upstanding wall is vertical or nearly vertical.

4. The combination of claim 2 wherein the upstanding wall is circumferential about the aperture.

5. The combination of claim 2 wherein the dome does not have a recess about the upstanding wall such that the dome has an unbroken curve that extends outwardly from the upstanding wall.

6. The combination of claim 2 wherein the dome has a recess about the upstanding wall such that the base of the grommet is positioned within the recess of the dome.

7. The combination of claim 2 wherein the upstanding wall terminates at a rim surface that forms an angle A relative to a horizontal reference line that is between −30 degrees and 60 degrees.

8. The combination of claim 7 wherein angle A is between zero and 45 degrees.

9. The combination of claim 7 wherein angle A is between 5 and 40 degrees.

10. The combination of claim 1 wherein the burr contacts the grommet.

11. The combination of claim 1 wherein the grommet includes a base located on the outboard side of the dome, a crown located on the inboard side of the dome, and a neck between the base and the dome for receiving the rim of the aperture.

12. The combination of claim 1 wherein the burr contacts the neck of the grommet when the grommet is in its sealing state.

13. The combination of claim 1 wherein the grommet is adapted for contacting a liquid.

14. A filled and sealed beverage can comprising:
a drawn and wall ironed can body including a dome in a base, a foot outboard the base, and an elongate ironed sidewall extending upwardly from the foot; the dome having an aperture therethrough and a wall about the aperture that terminates in a rim, the rim having an inboard side and an outboard side, wherein the inboard side is radially inward relative to the outboard side with respect to the aperture;
an end seamed to an open end of the can body opposite the base to enclose the can;
a burr located on the inboard side of the rim;
a grommet disposed in the aperture, an inboard portion of the aperture being in contact with the liquid product contents of the can.

15. The beverage can of claim 14 wherein the wall is an upstanding wall.

16. The beverage can of claim 15 wherein the upstanding wall is vertical or nearly vertical.

17. The beverage can of claim 15 wherein the upstanding wall is circumferential about the aperture.

18. The beverage can of claim 15 wherein the dome does not have a recess about the upstanding wall such that the dome has an unbroken curve that extends outwardly from the upstanding wall.

19. The beverage can of claim 15 wherein the dome has a recess about the upstanding wall such that the base of the grommet is positioned within the recess of the dome.

20. The beverage can of claim 15 wherein the upstanding wall terminates at a rim surface that forms an angle A relative to a horizontal reference line that is between −30 degrees and 60 degrees.

21. The beverage can of claim 19 wherein angle A is between zero and 45 degrees.

22. The beverage can of claim 19 wherein angle A is between 5 and 40 degrees.

23. The beverage can of claim 14 wherein the burr contacts the grommet.

24. The beverage can of claim 14 wherein the grommet includes a base located on the outboard side of the dome, a crown located on the inboard side of the dome, and a neck between the base and the dome for receiving the rim of the aperture.

25. The beverage can of claim 14 wherein the burr contacts the neck of the grommet when the grommet is in its sealing state.

26. The beverage can of claim 14 wherein a portion of the grommet within the can contacts the liquid product.

Assignees

• Crown Packaging Technology Inc

Inventors

• Golding Richard Mark Orlando

Classifications

• B65D83/425 Primary

  Delivery valves permitting filling or charging · CPC title

• B65D1/165

  Cylindrical cans · CPC title

• B65D1/20

  characterised by location or arrangement of filling or discharge apertures · CPC title

• B65D83/42

  Filling or charging means · CPC title

• B65D83/38

  Details of the container body (pressure relief devices B65D83/70) · CPC title