Strip material used in forming air inflated cushioning material

Stock material or miscellaneous articles – Structurally defined web or sheet – Edge feature

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156145, 156272, 156285, 428158, 428166, 428172, 428188, 428178, 428195, 428212, B32B 302, B32B 312

Patent

active

040963063

ABSTRACT:
An improved strip material which may be inflated and sealed at the site of its intended use to form cushioning material. The strip material comprises two heat sealable films which are fused together in discrete areas to form two rows of inflatable chambers along the strip and a passageway extending the length of the strip material between the rows, with each of the chambers having an inlet opening narrower than the main portion of the chamber communicating with the passageway. The strip material is inflated by propelling the passageway in the strip over an air nozzle to inflate the chambers through their inlet openings, and the inlet openings are then sealed.

REFERENCES:
patent: 2470990 (1949-05-01), Kennedy
patent: 3660189 (1972-05-01), Troy
patent: 3746605 (1973-07-01), Dillon et al.
patent: 3865667 (1975-02-01), Ferrari
patent: 3868285 (1975-02-01), Troy
patent: 3938298 (1976-02-01), Luhman et al.

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