A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 16/10 (2006.01) A61M 11/00 (2006.01) A61M 15/00 (2006.01) A61M 16/20 (2006.01)
Patent
CA 2725794
A heat and moisture exchange (HME) unit (50) including a housing (52), a heat and moisture retaining media (HM media) (54), and a valve mechanism (56). The housing (52) forms an intermediate section (62) extending between two ports (58,60), and defining first and second flow paths. The HM media (54) is maintained along the first flow path. The valve mechanism (56) includes an obstruction member (100) movably retained within the housing (52) and transitionable between opposing, first and second maximum points of travel. At the first maximum point of travel, the obstruction member (100) closes the second flow path to permit airflow through only the first flow path. At the second maximum point of travel, the obstruction member (100) permits airflow through both of the first and second flow paths. The HME unit (50) is simple to use, yet provides an effective bypass state in which airflow freely progresses around the HM media (54).
L'invention concerne une unité d'échange de chaleur et d'humidité (HME) (50) comportant un boîtier (52), un milieu de retenue de la chaleur et de l'humidité (HM media) (54), et un mécanisme soupape (56). Le boîtier (52) forme une section intermédiaire (62) s'étendant entre deux ports (58, 60), et définissant un premier et un second chemin d'écoulement. Le HM media (54) est maintenu le long du premier chemin d'écoulement. Le mécanisme soupape (56) comporte un élément d'obstruction (100) retenu mobile à l'intérieur du boîtier et pouvant passer entre les premier et second points maximum opposés de la course. Au premier point maximum de course, l'élément d'obstruction (100) ferme le second chemin d'écoulement afin de permettre l'écoulement d'air seulement à travers le premier chemin d'écoulement. Au second point maximum de course, l'élément d'obstruction (100) permet l'écoulement d'air à travers les premier et second chemins d'écoulement. L'unité HME (50), d'utilisation simple, offre un état de dérivation efficace dans lequel l'écoulement d'air circule librement autour du HM media (54).
Korneff Neil Alex
Mansour Khalid Said
Zollinger Christopher Jesse
Carefusion 2200 Inc.
Sim & Mcburney
LandOfFree
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