Inflatable pouches

Patent metadata

Field	Value
Publication number	US-10786960-B2
Application number	US-201715623903-A
Country	US
Kind code	B2
Filing date	Jun 15, 2017
Priority date	Apr 19, 2013
Publication date	Sep 29, 2020
Grant date	Sep 29, 2020

Abstract

A supply of inflatable pouches includes an inflatable web defining a series of inflatable chambers, a longitudinal fold in the web such that the web is configured in the form of two juxtaposed inflatable panels joined together at the longitudinal fold, and a series of transverse seals that bond the panels together to form a series of inflatable pouches between pairs of the transverse seals.

First claim

What is claimed is:

1. A method comprising:
withdrawing a pre-configured web of inflatable chambers from a supply of the pre-configured web, wherein the pre-configured web comprises a pair of juxtaposed panels that are joined together to form the inflatable chambers;
forming, by a transverse seal mechanism, transverse seals in the pre-configured web that bond the pair of juxtaposed panels together to form inflatable pouches between pairs of the transverse seals, wherein each of the inflatable pouches includes a connected series of the inflatable chambers; and
inflating, by an inflation assembly, the connected series of the inflatable chambers of the inflatable pouches to form inflated pouches;
wherein intervals between the transverse seals are selectively controlled so that the system is capable of forming the inflated pouches at different widths; and
wherein the inflatable pouches are directly fed from the transverse seal mechanism to the inflation assembly.

2. The method of claim 1 , wherein the forming of the transverse seals in the pre-configured web occurs before the inflating and sealing of the connected series of the inflatable chambers.

3. The method of claim 1 , wherein the transverse seals are formed at irregular intervals by varying a rate of conveyance of the pre-configured web with respect to a location of the transverse seal mechanism.

4. The method of claim 1 , wherein the transverse seals are formed at irregular intervals by varying a rate at which the transverse seal mechanism forms the transverse seals.

5. The method of claim 1 , wherein the transverse seals are formed at irregular intervals by selectively controlling a frequency at which the transverse seal mechanism makes the transverse seals independently of a speed at which the pre-configured web is conveyed.

6. The method of claim 1 , wherein each of one or more of the transverse seals includes a leading edge transverse seal and a trailing edge transverse seal.

7. The method of claim 6 , wherein each of the one or more of the transverse seals further includes a line of weakness located between the leading edge transverse seal and the trailing edge transverse seal.

8. The method of claim 1 , wherein the transverse seals are formed at irregular intervals based on passage of a predetermined length of the pre-configured web along a longitudinal dimension.

9. The method of claim 1 , wherein the transverse seals are formed at irregular intervals based on passage of a predetermined number of the inflatable chambers in the pre-configured web.

10. The method of claim 1 , further comprising:
sealing the connected series of the inflatable chambers after the inflating of the connected series of the inflatable chambers.

11. A system comprising:
a supply of a pre-configured web of inflatable chambers, wherein the pre-configured web comprises a pair of juxtaposed panels that are joined together to form the inflatable chambers;
a transverse seal mechanism configured to form transverse seals in the pre-configured web that bond the pair of juxtaposed panels together to form inflatable pouches between pairs of the transverse seals, wherein each of the inflatable pouches includes a connected series of the inflatable chambers; and
an inflation assembly configured to inflate the connected series of the inflatable chambers of the inflatable pouches to form inflated pouches; and
a conveyance mechanism configured to convey the pre-configured web between the supply, the transverse seal mechanism, and the inflation assembly;
wherein intervals between the transverse seals are selectively controlled so that the system is capable of forming the inflated pouches at different widths; and
wherein the conveyance mechanism is configured to directly feed the inflatable pouches from the transverse seal mechanism to the inflation assembly.

12. The system of claim 11 , wherein the transverse seal mechanism and the inflation assembly are arranged so that the transverse seals are formed in the pre-configured web before the connected series of the inflatable chambers are inflated.

13. The system of claim 11 , wherein the transverse seals are formed at irregular intervals by varying a rate of conveyance of the pre-configured web with respect to the transverse seal mechanism.

14. The system of claim 11 , wherein the transverse seals are formed at irregular intervals by varying a rate at which the transverse seal mechanism forms the transverse seals.

15. The system of claim 11 , wherein the transverse seals are formed at irregular intervals by selectively controlling a frequency at which the transverse seal mechanism makes the transverse seals independently of a speed at which the pre-configured web is conveyed.

16. The system of claim 11 , wherein at least one of the transverse seals includes a leading edge transverse seal and a trailing edge transverse seal.

17. The system of claim 16 , wherein the at least one of the transverse seals further includes a line of weakness located between the leading edge transverse seal and the trailing edge transverse seal.

18. The system of claim 11 , wherein the transverse seals are formed at irregular intervals based on passage of a predetermined length of the pre-configured web along a longitudinal dimension.

19. The system of claim 11 , wherein the transverse seals are formed at irregular intervals based on passage of a predetermined number of the inflatable chambers in the pre-configured web.

20. The system of claim 11 , wherein the inflation assembly, the transverse seal mechanism, and the conveyance mechanism are integrated into an inflation and sealing machine.

21. A system comprising:
a supply of a pre-configured web of inflatable chambers, wherein the pre-configured web comprises a pair of juxtaposed panels that are joined together to form the inflatable chambers;
a transverse seal mechanism configured to form transverse seals in the pre-configured web that bond the pair of juxtaposed panels together to form inflatable pouches between pairs of the transverse seals, wherein each of the inflatable pouches includes a connected series of the inflatable chambers; and
an inflation assembly configured to inflate the connected series of the inflatable chambers of the inflatable pouches to form inflated pouches; and
a conveyance mechanism configured to convey the pre-configured web between the supply, the transverse seal mechanism, and the inflation assembly;
a port sealing mechanism configured to seal ports of the connected series of inflatable chambers of the inflatable pouches after inflation of the connected series of inflatable chambers;
wherein intervals between the transverse seals are selectively controlled so that the system is capable of forming the inflated pouches at different widths.

Assignees

• Sealed Air Corp

Inventors

• Sperry Laurence B
• Lepine Jason D
• Murch Brian A

Classifications

• B31D5/0073 Primary

  including pillow forming · CPC title

• B31B2170/00

  Construction of flexible containers · CPC title

• B31B2150/00

  Flexible containers made from sheets or blanks, e.g. from flattened tubes · CPC title

• B31D2205/0082

  General layout of the machinery or relative arrangement of its subunits · CPC title

• B29D22/02 Primary

  Inflatable articles · CPC title