Respirator valve

A - Human Necessities – 62 – B

Patent

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Details

A62B 18/10 (2006.01) A61M 16/06 (2006.01) F16K 15/16 (2006.01) A61M 16/20 (2006.01)

Patent

CA 2448219

A unidirectional valve (20), wherein the valve comprises a valve body including a frame (50), a valve opening (52) through the frame, and a valve seat (54) extending from the frame and at least partially surrounding the valve opening. The valve further includes a valve flap (70) having a first portion (76) attached to the frame and an adjacent second portion (37) free to move from a first position where the second portion is in contact with at least a part of the valve seat (54) to a second position where at least part of the second portion is spaced from the valve seat (54), wherein the valve flap (70) has a nonuniform thickness. The thickness variations may occur between sides of the valve flap (70), and may also occur between the ends of the valve flap (70).

Cette invention concerne une soupape unidirectionnelle (20) dont le corps comprend un cadre (50), une ouverture de soupape (52) dans le corps et un siège de soupape (54) partant du cadre et entourant au moins partiellement l'ouverture de la soupape. De plus, la soupape est équipée d'un volet (70) dont une premier élément (76) est fixé au cadre et un second élément adjacent (37) peut passer librement d'une première position, dans laquelle le second élément est en contact avec au moins une partie du siège de soupape (54), à une seconde position dans la quelle une partie au moins du second élément n'est pas en contact avec le siège de soupape (54) . Le volet de soupape (70) présente une épaisseur non uniforme. Les variations d'épaisseur peuvent s'observer entre les côtés du volet de soupape (70), ainsi qu'entre les extrémités dudit volet.

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