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热词
    • 10. 发明授权
    • Respirator valve
    • 呼吸阀
    • US07849856B2
    • 2010-12-14
    • US09888943
    • 2001-06-25
    • William A. MittelstadtDavid M. CastiglioneThomas I. Insley
    • William A. MittelstadtDavid M. CastiglioneThomas I. Insley
    • A61M16/00A62B18/02A62B7/10A62B9/02A62B18/10F16K21/04
    • F16K15/16
    • A unidirectional valve, wherein the valve comprises a valve body including a frame, a valve opening through the frame, and a valve seat extending from the frame and at least partially surrounding the valve opening. The valve further includes a valve flap having a first portion attached to the frame and an adjacent second portion free to move from a first position where the second portion is in contact with at least a part of the valve seat to a second position where at least part of the second portion is spaced from the valve seat, wherein the valve flap has a contour profile. The contoured profile may be along the length of the valve flap, between the point of attachment of the flap to the frame and the flap end, or from one flap side edge to a second side edge.
    • 一种单向阀,其中所述阀包括阀体,所述阀体包括框架,通过所述框架的阀开口以及从所述框架延伸并且至少部分地围绕所述阀开口的阀座。 所述阀还包括阀瓣,所述阀瓣具有附接到所述框架的第一部分和相邻的第二部分,所述第二部分可自由地从所述第二部分与所述阀座的至少一部分接触的第一位置移动到第二位置, 第二部分的一部分与阀座间隔开,其中阀瓣具有轮廓。 成型轮廓可以沿着阀瓣的长度,在翼片到框架和翼片端部的连接点之间,或者从一个翼片侧边缘到第二侧边缘。