Method of making a fluid cushion

Details Method of making a fluid cushion Method of making a fluid cushion

1993-04-29

1994-04-19

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156147, 156290, 156292, 5449, 5455, B32B 3104, A47C 2708

Patent

active

053042719

ABSTRACT:
A fluid cushion is comprised of a top material layer having a first preformed cell pattern formed therein, and first seal lines pattern between cells, respectively, and a bottom material layer having a second preformed cell pattern formed therein. The second preformed pattern is congruent and complementary to the first preformed cell pattern and has a seal line matching the first seal lines, respectively. A first middle material layer has a third preformed cell pattern formed therein, with second seal lines between cells, respectively, the cells in the third preformed cell pattern being a fraction of the size of cells in the first preformed pattern. A second middle material layer has a fourth preformed cell pattern which is congruent and complementary to the third preformed cell pattern and has seal lines between cells matching and joined to the second seal lines to form small center cells, respectively, there being a cluster of small cells bounded by the larger outer cells. A fluid medium is confined in said cells, respectively, the top material layer and the bottom material layer being joined to the first and second middle material layers, respectively, along the first seal lines. Fluid flow passages are formed between selected ones of the small center cells to permit fluid to flow laterally in a common plane for the small center cells formed between said first and second middle layers.

REFERENCES:
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patent: 4818324 (1989-04-01), David
patent: 5044030 (1991-09-01), Balaton
patent: 5143775 (1992-09-01), Olsson et al.

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