Method and apparatus for providing metal container with lining

Patent metadata

Field	Value
Publication number	US-10137493-B2
Application number	US-201514847967-A
Country	US
Kind code	B2
Filing date	Sep 8, 2015
Priority date	Mar 15, 2013
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

Embodiments of methods and apparatuses for providing a container with a lining are provided. A lining element is displaced into the interior of the container and coupled to the interior surfaces of the container to substantially cover the interior of the container.

First claim

What is claimed is:

1. A method of lining a metal container with a film, the container including a cylindrical sidewall open at a first end and closed with an end joined to the sidewall at a second end, the cylindrical sidewall and the end defining an interior surface, the method comprising:
locating the film at the first end;
engaging the film with a mandrel; and
moving the mandrel into the container to displace the film from the first end into contact with the interior surfaces of the cylindrical sidewall and the end.

2. The method of claim 1 , further comprising:
heating one of the container and the film prior to contact between the film and the interior surfaces; and
applying adhesive to one of the interior surface and the film prior to contact between the film and the interior surfaces.

3. The method of claim 1 , wherein the film is a plastic film which does not include BPA.

4. The method of claim 1 , wherein the mandrel includes a plurality of apertures at which the pressure is controllable relative to atmospheric pressure, the method further comprising:
creating a vacuum at the apertures prior to engagement of the film by the mandrel to draw the film into contact with the mandrel; and
pressurizing the apertures subsequent to moving the mandrel into the container.

5. The method of claim 2 , wherein the mandrel includes a plurality of apertures at which the pressure is controllable, the method further comprising:
creating a vacuum at the apertures prior to engagement of the film by the mandrel to draw the film into contact with the mandrel; and
pressurizing the apertures subsequent to moving the mandrel into the container.

6. The method of claim 5 , wherein the adhesive is applied to both the film and the interior surface.

7. The method of claim 5 , wherein both the container and the film are heated.

8. The method of claim 1 , wherein the cylindrical sidewall and the end are joined together by a double seam joint.

9. The method of claim 1 , wherein the sidewall and the end are formed from a single sheet of metal.

10. A method of lining a metal container with a film, the container including a cylindrical sidewall open at a first end and closed with an end joined to the sidewall at a second end, the cylindrical sidewall and the end defining an interior surface, the method comprising:
locating the film at the first end;
engaging the film with a deflated bladder;
moving the bladder into the container to displace the film from the first end into the container;
inflating the bladder to move the film into contact with the interior surfaces of the sidewall and the end;
deflating the bladder; and
and removing the bladder from the container.

11. The method of claim 10 , further comprising:
adhering the film to substantially all of the interior surfaces of the sidewall and the can prior to deflating the bladder.

12. The method of claim 10 , further comprising:
applying and thermally activated adhesive to the film prior to locating the film at the first end; and
heating one of the film and container prior to displacing the film into the container.

13. The method of claim 10 , further comprising
applying and thermally activated adhesive to the interior of the container prior to locating the film at the first end; and
heating one of the film and container prior to displacing the film into the container.

14. A method of lining a metal container with a film, the container including a cylindrical sidewall open at a first end and closed with an end joined to the sidewall at a second end, the cylindrical sidewall and the end defining an interior surface, the method comprising:
locating the film at the first end;
engaging the film with a displacement member at an interface between the film and the displacement member;
moving the displacement member and film into the container; and
pressurizing the interface to force the film into contact with the interior surfaces of the cylindrical sidewall and the end.

15. The method of claim 14 , further comprising adhering the film into contact with the interior surfaces while the film is forced into contact with the interior surfaces.

16. The method of claim 1 , further comprising trimming the film at the first end subsequent to moving the film into contact with the interior surface of the container.

17. The method of claim 11 , further comprising trimming the film at the first end subsequent to adhering the film to the interior surfaces.

18. The method of claim 15 , further comprising trimming the film at the first end subsequent to adhering the film to the interior surfaces.

19. The method of claim 14 , further comprising heating the film prior to pressurizing the interface.

20. The method of claim 14 , wherein the step of locating the film includes moving a portion of a roll of film toward the first end.

Assignees

• Silgan Containers Llc

Inventors

• Widitora Alvin
• Gurka Michael
• Richards Michael
• Lobner Dustin
• Frisella Phil

Classifications

• B29C2791/006

  Using vacuum · CPC title

• B29C2791/007

  Using fluid under pressure · CPC title

• B21D51/26 Primary

  cans or tins; Closing same in a permanent manner (making outlet arrangements B21D51/38; welding or soldering B23K) · CPC title

• B65D1/165

  Cylindrical cans · CPC title

• B65D25/14

  Linings or internal coatings (of containers made by folding or erecting blanks made of paper B65D5/56 {; linings for domestic water storage heaters F24H1/183}) · CPC title