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发明授权
CN1981895B 呼吸器 失效 - 权利终止

呼吸器
摘要：
一种单向阀(20)，其中该阀包括一阀体，所述阀体包含一框架(50)、穿过框架的一阀口(52)、以及从框架延伸出并至少部分地围绕该阀口的一阀座(54)。该阀还包括一阀瓣，所述阀瓣(70)具有附接至框架的一第一部分(76)和一相邻的第二部分(77)，第二部分可以从第二部分与阀座(54)的至少一部分接触的一第一位置自由移动到第二部分的至少一部分与阀座(54)间隔开的一第二位置，其中，阀瓣(70)具有不均匀的厚度。在阀瓣(70)的两侧之间可以有厚度变化，阀瓣(70)的两端之间也可以有厚度变化。
摘要（英）：

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).

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