Cushion, kit and method of manufacture

A - Human Necessities – 47 – C

Patent

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Details

A47C 4/54 (2006.01) A47C 7/02 (2006.01)

Patent

CA 2754914

There is provided a cushion (10) comprising an envelope (12) comprising at least an inner and outer layer (14, 16) of polyurethane material,and a resilient core (17) of an open-cell polyurethane foam material inside the envelope (12), wherein the envelope (12) is substantially air- and liquid-impermeable, and the inner layer (14) is at least partially attached to the outer layer (16) and the resilient core (17) so as to provide a plurality of microchannels of an outer surface of at least a top portion of the envelope (12), a kit comprising such cushion (10) and a removable cover, a cushion system and a method of manufacturing such a cushion (10).

La présente invention a pour objet un coussin (10) comprenant une enveloppe (12) comprenant au moins une couche interne et externe (14, 16) en polyuréthanne, et un cur élastique (17) en mousse polyuréthanne à cellules ouvertes à l'intérieur de l'enveloppe (12), l'enveloppe (12) étant sensiblement imperméable à l'air et aux liquides, et la couche interne (14) étant au moins partiellement fixée à la couche externe (16) et au cur élastique (17) de sorte à fournir une pluralité de microcanaux d'une surface externe d'au moins une partie supérieure de l'enveloppe (12). L'invention a également pour objet un kit comprenant ce coussin (10) et une protection amovible, un système de coussin et un procédé de fabrication d'un tel coussin (10).

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