Underbody convective blanket and method for manufacturing...

A - Human Necessities – 61 – F

Patent

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Details

A61F 7/00 (2006.01) A47C 21/04 (2006.01) A47C 27/08 (2006.01) A47C 7/74 (2006.01)

Patent

CA 2719241

A convective underbody blanket has a head portion and a body portion. Provided at the head portion is a non-inflatable head area surrounded by a channel that has arranged thereat at least one row of air apertures that are oriented toward the noninflatable head area when the channel is inflated. At the body portion there is provided a non-inflatable body area. The longitudinal channels that sandwich the non-inflatable body area extend substantially along the length of the noninflatable body area and are in fluid communication with each other by way of a cross channel formed at the foot end of the blanket. The configuration of the blanket allows air input to the blanket to be circulated through the various channels, so that the heated air output from the different rows of apertures formed at the various channels has substantially the same temperature.

La présente invention concerne une couverture convective de soubassement qui comprend une partie tête et une partie corps. La partie tête comporte une zone de tête non gonflable entourée d'un canal sur lequel se trouve au moins une rangée d'orifices pour l'air orientés vers la zone de tête non gonflable lorsque le canal est gonflé. La partie corps comporte une zone de corps non gonflable. Le long de chaque côté longitudinal de la zone de corps se trouve au moins un canal longitudinal. Chaque canal longitudinal se trouve en communication fluidique avec le canal qui entoure la zone de tête non gonflable. Les canaux longitudinaux qui entourent la zone de corps non gonflable sétendent sensiblement le long de la zone de corps non gonflable et sont en communication fluidique les uns avec les autres à laide dun canal transversal formé sur lextrémité pied de la couverture. La configuration de la couverture permet à l'air qui a été introduit dans la couverture d'être diffusé dans les divers canaux, de telle sorte que lair chauffé qui sort des différentes rangées dorifices formées sur les divers canaux ait sensiblement la même température. Il est possible de disposer les différentes rangées dorifices sur différentes zones le long de la couverture.

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