Cushioning package

1. A cushioning package comprising:

walls internally lined by a cushion made of air cells, wherein the air cells consist of a row of elongated and contiguous tubular chambers parallel to one other, and

each chamber of said tubular chambers hermetically sealed to the walls of the package around an entire perimeter of each chamber and each chamber containing air at substantially environmental pressure, wherein said tubular chambers are arranged in a first layer superimposed on a second layer, and

wherein first tubular chambers of said first layer are offset relative to second tubular chambers of said second layer over entire longitudinal dimensions of said first tubular chambers and said second tubular chambers, such that first longitudinal axes of said first layer and second longitudinal axes of said second layer are not aligned with each other;

each tubular chamber of the first tubular chambers is parallel to each other tubular chamber of the first tubular chambers over an entire longitudinal dimension of each tubular chamber of the first tubular chambers, each tubular chamber of the second tubular chambers is parallel to each other tubular chamber of the second tubular chambers over an entire longitudinal dimension of each tubular chamber of the second tubular chambers;

each tubular chamber of the first tubular chambers being about equal in width to each other tubular chamber of the first tubular chambers over an entire longitudinal dimension of each chamber of the first tubular chambers, and each tubular chamber of the second tubular chambers being about equal in width to each other tubular chamber of the second tubular chambers over an entire longitudinal dimension of each chamber of the second tubular chambers.

2. The package according to claim 1 , wherein the walls form an envelope or bag.

3. The package according to claim 2 , wherein said tubular chambers essentially have the same length as the envelope or bag.

4. The package according to claim 3 , wherein said walls are made of paper coupled internally with a film of thermoplastic material wherein said tubular chambers are formed by a corrugated sheet of thermoplastic material heat-welded to said film along its edges and along its corrugations that define said tubular chambers.

5. The package according to claim 3 , wherein said walls are made of thermoplastic material, wherein said tubular chambers are formed by a corrugated sheet of thermoplastic material heat-welded to said walls along its edges and along its corrugations that define said tubular chambers.

6. The package according to claim 2 , wherein the envelope or bag has a quadrangular shape, wherein said tubular chambers are arranged parallelly to two opposite sides of the envelope or bag.

7. The package according to claim 6 , further comprising an openable side for introducing and extracting the contents, wherein said tubular chambers are oriented transversely to said openable side.

8. The package according to claim 7 , wherein said walls are made of paper coupled internally with a film of thermoplastic material wherein said tubular chambers are formed by a corrugated sheet of thermoplastic material heat-welded to said film along its edges and along its corrugations that define said tubular chambers.

9. The package according to claim 7 , wherein said walls are made of thermoplastic material, wherein said tubular chambers are formed by a corrugated sheet of thermoplastic material heat-welded to said walls along its edges and along its corrugations that define said tubular chambers.

10. The package according to claim 6 , wherein said walls are made of paper coupled internally with a film of thermoplastic material wherein said tubular chambers are formed by a corrugated sheet of thermoplastic material heat-welded to said film along its edges and along its corrugations that define said tubular chambers.

11. The package according to claim 6 , wherein said walls are made of thermoplastic material, wherein said tubular chambers are formed by a corrugated sheet of thermoplastic material heat-welded to said walls along its edges and along its corrugations that define said tubular chambers.

12. The package according to claim 1 , wherein said walls are made of paper coupled internally with a film of thermoplastic material wherein said tubular chambers are formed by a corrugated sheet of thermoplastic material heat-welded to said film along its edges and along its corrugations that define said tubular chambers.

13. The package according to claim 1 , wherein said walls are made of thermoplastic material, wherein said tubular chambers are formed by a corrugated sheet of thermoplastic material heat-welded to said walls along its edges and along its corrugations that define said tubular chambers.

14. The package according to claim 1 , further comprising an open end for introducing and extracting contents and a closed opposite end, said first tubular chambers and said second tubular chambers extending between said open end and said closed end longitudinally relative to said walls, such that interiors of said first tubular chambers and said second tubular chambers are not in fluid communication with each other, said closed end abutting first ends of said first tubular chambers and second ends of said second tubular chambers, and said first ends and said second ends directly abutting each other at said closed end.