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    • 31. 发明授权
    • Exhalation and inhalation valves that have a multi-layered flexible flap
    • 具有多层柔性皮瓣的呼气和吸入阀
    • US07013895B2
    • 2006-03-21
    • US11041044
    • 2005-01-21
    • Philip G. MartinJianxian Xue
    • Philip G. MartinJianxian Xue
    • A62B9/02A62B18/10
    • A62B18/10
    • Exhalation and inhalation valves that are sized and adapted to fit on a mask body of a personal respiratory protection device. The exhalation and inhalation valves comprise a valve seat that has a seal surface and an orifice through which an exhale flow stream may pass to leave the interior gas space. A flexible flap is mounted to the valve seat such that the flap makes contact with the seal surface when the valve is in its closed position and such that the flap can flex away from the seal surface during an exhalation to allow exhaled air to pass through the orifice to ultimately enter an exterior gas space. The flexible flap has at least first and second juxtaposed layers where at least one of the layers is stiffer or has a different elastic modulus than the other layer. These valves provide extraordinarily lower pressure drop in use, and they operate more efficiently and require less actuation power to operate. The end user therefore derives greater comfort when wearing a respiratory mask that uses the inventive valve.
    • 呼气和吸入阀,其尺寸和适合安装在个人呼吸防护装置的面罩主体上。 呼气和吸入阀包括具有密封表面和孔口的阀座,呼出气流可以通过该孔口离开内部气体空间。 柔性翼片安装到阀座上,使得当阀处于其关闭位置时,翼片与密封表面接触,并且使得翼片在呼气期间能够从密封表面弯曲远离以使呼出的空气通过 孔口最终进入外部气体空间。 柔性折片具有至少第一和第二并置层,其中至少一个层比另一层更硬或具有不同的弹性模量。 这些阀在使用中提供非常低的压降,并且它们更有效地操作并且需要更少的致动力来操作。 因此,当佩戴使用本发明的阀的呼吸面罩时,最终使用者获得更大的舒适度。
    • 40. 发明授权
    • Filtering face mask that has a resilient seal surface in its exhalation valve
    • 在其呼气阀中具有弹性密封表面的过滤面罩
    • US07188622B2
    • 2007-03-13
    • US10465359
    • 2003-06-19
    • Philip G. MartinJianxian Xue
    • Philip G. MartinJianxian Xue
    • A62B23/02A62B9/02A62B9/06
    • A62B18/10C01P2004/20
    • A filtering face mask 10 that has a mask body and a new exhalation valve 14. The mask body is adapted to fit at least over the nose and mouth of a person to help define an interior gas space when the mask is worn. The exhalation valve 14 permits fluid communication between the interior gas space and an exterior gas space. The exhalation valve 14 has a valve seat 20 and a flap 22. The valve seat 20 includes a resilient seal surface 24 and an orifice 30 through which exhaled air may pass to leave the interior gas space. The flap 22 is mounted to the valve seat 20 such that the flap 22 makes contact with the resilient seal surface 24 when the valve is in its closed position and such that the flap 22 can move away from the seal surface 24 in response to an exhalation to allow exhaled air to pass through the orifice 30 to ultimately enter the exterior gas space. A filtering face mask that utilizes an exhalation valve that has a resilient seal surface can enable the valve to open under substantially less pressure, which, in turn, may improve wearer comfort.
    • 具有面罩主体和新的呼气阀14的过滤面罩10。 面罩主体适于至少适合人的鼻子和嘴部,以在面具佩戴时帮助限定内部气体空间。 呼气阀14允许内部气体空间和外部气体空间之间的流体连通。 呼气阀14具有阀座20和挡板22。 阀座20​​包括弹性密封表面24和孔30,呼出的空气可以通过孔30离开内部气体空间。 翼片22安装到阀座20,使得当阀处于其关闭位置时,挡板22与弹性密封表面24接触,并且使得翼片22能够响应于呼气而远离密封表面24移动 以允许呼出的空气通过孔口30以最终进入外部气体空间。 使用具有弹性密封表面的呼气阀的过滤面罩可以使阀在基本上较小的压力下打开,这又可以改善佩戴者的舒适度。