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    • 2. 发明授权
    • Filtering face mask with a unidirectional valve having a stiff unbiased flexible flap
    • 用具有刚性无偏柔性翼片的单向阀过滤面罩
    • US07503326B2
    • 2009-03-17
    • US11275299
    • 2005-12-22
    • Philip G. Martin
    • Philip G. Martin
    • A62B9/02
    • A62B18/025A62B18/10
    • A filtering face mask that includes a mask body that is adapted to fit at least over the nose and mouth of a wearer to create an interior gas space when worn; and an exhalation valve that is in fluid communication with the interior gas space. The exhalation valve includes a valve seat with a seal surface and an orifice through which exhaled air may pass to leave the interior gas space; and a flexible flap that 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. The flap is unbiased when in its closed position and exhibits a cantilever bend ratio of 0.0050 or less.
    • 一种过滤面罩,其包括面罩主体,所述面罩主体适于至少装配在穿戴者的鼻子和嘴部之上,以在佩戴时形成内部气体空间; 以及与内部气体空间流体连通的呼气阀。 呼气阀包括具有密封表面的阀座和呼出的空气可通过的孔口以离开内部气体空间; 以及安装到阀座的柔性翼片,使得当阀处于其关闭位置时,翼片与密封表面接触,并且使得在呼气期间翼片可以从密封表面弯曲以允许呼出的空气通过 通过孔。 当其处于关闭位置时,该挡片是无偏的,并且悬臂弯曲比为0.0050或更小。
    • 3. 发明授权
    • Filtering face mask that uses an exhalation valve that has a multi-layered flexible flap
    • 过滤面罩,使用具有多层柔性皮瓣的呼气阀
    • US07028689B2
    • 2006-04-18
    • US09989965
    • 2001-11-21
    • Philip G. MartinJianxian Xue
    • Philip G. MartinJianxian Xue
    • A62B9/02A62B18/10
    • A62B18/10
    • A filtering face mask that includes a mask body and an exhalation valve. The mask body is adapted to fit at least over the nose and mouth of a wearer to create an interior gas space when worn, and the exhalation valve is in fluid communication with the interior gas space. The exhalation valve comprises 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.
    • 一种包括面罩主体和呼气阀的过滤面罩。 面罩主体适于至少配合穿戴者的鼻子和嘴部,以在穿戴时形成内部气体空间,并且呼气阀与内部气体空间流体连通。 呼气阀包括具有密封表面和孔口的阀座,呼出气流可以通过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。
    • 4. 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。