Supplemental passenger oxygen mask

A - Human Necessities – 62 – B

Patent

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Details

A62B 18/00 (2006.01)

Patent

CA 2646361

A face piece/reservoir combination that is molded as one piece. By integrating the face piece and reservoir bag into one single piece, the mask conserves space and reduces the number of parts while maintaining adequate reservoir volume . The mask has an edge on the face cup that provides a larger sealing area for the users face and provides a more comfortable fit than existing masks. The mask may be configured as a simple constant flow mask or it may include valves, allowing it to function as a phase dilution mask. The mask may be equipped with a rebreather bag and valves to function as a rebreather/phase dilution mask.

La présente invention concerne la combinaison d'une pièce faciale et d'un réservoir, moulée en un seul élément. Grâce à l'intégration de la pièce faciale et de la poche réservoir dans un élément unique, le masque reste spacieux et permet une réduction du nombre de composants tout en maintenant un volume de réservoir adéquat. Le masque comporte un bord sur le pourtour facial qui offre une surface d'étanchéité plus importante au visage des utilisateurs et autorise un ajustement plus confortable que ne le font les masques existants. Le masque peut être configuré pour fonctionner comme masque à simple flux constant ou il peut inclure des valves qui lui permettent de fonctionner comme un masque à dilution de phase. Le masque peut être équipé d'un dispositif de respiration à recirculation et de valves permettant de diluer les phases et de respirer en circuit fermé.

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