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25 条记录 (耗时 0.035 秒)

    Method of making a filtering face mask that has an exhalation valve
    8.
    发明授权
    Method of making a filtering face mask that has an exhalation valve 有权
    制造具有呼气阀的过滤面罩的方法

    公开(公告)号：US07311104B2

    公开(公告)日：2007-12-25

    申请号：US09837714

    申请日：2001-04-18

    申请人： Daniel A. Japuntich ,  Vaughn B. Grannis ,  Harold J. Seppala ,  Anthony B. Ferguson

    发明人： Daniel A. Japuntich ,  Vaughn B. Grannis ,  Harold J. Seppala ,  Anthony B. Ferguson

    IPC分类号： A62B7/10

    CPC分类号： A62B18/10 ,  A62B18/025 ,  Y10T137/0491

    摘要： A method of making a filtering face mask, which method includes the steps of: (a) providing (i) a valve seat that comprises an orifice and a seal surface, wherein the orifice allows air to pass therethrough and is surrounded by the seal surface, and (ii) a single flexible flap; (b) supporting the single flexible flap non-centrally and operatively relative to the orifice of the valve seat to form an exhalation valve, the single flexible flap being supported such that there is an imposed curved profile that extends from a first point where a stationary portion of the flap is supported on the valve seat to a second point where a free portion of the flap contacts a seal surface; and (c) attaching the exhalation valve to a mask body that is adapted to fit over the nose and mouth of a person.

    摘要翻译： 一种制造过滤面罩的方法，该方法包括以下步骤：（a）提供（i）包括孔口和密封表面的阀座，其中孔口允许空气通过并被密封表面包围 ，和（ii）单个柔性瓣; （b）相对于阀座的孔口非中心地和可操作地支撑单个柔性挡板以形成呼气阀，所述单个柔性挡板被支撑成使得存在施加的弯曲轮廓，该弯曲轮廓从第一点延伸，其中固定 翼片的一部分支撑在阀座上至第二点，其中翼片的自由部分接触密封表面; 和（c）将呼气阀连接到适于装在人的鼻子和嘴部上的面罩主体。

    Unidirectional fluid valve
    9.
    发明授权
    Unidirectional fluid valve 失效
    单向流体阀

    公开(公告)号：US5509436A

    公开(公告)日：1996-04-23

    申请号：US448088

    申请日：1995-05-23

    申请人： Daniel A. Japuntich ,  Vaughn B. Grannis ,  Harold J. Seppala ,  Anthony B. Ferguson

    发明人： Daniel A. Japuntich ,  Vaughn B. Grannis ,  Harold J. Seppala ,  Anthony B. Ferguson

    IPC分类号： A62B18/02 ,  A62B18/08 ,  A62B18/10 ,  F16K15/16

    CPC分类号： A62B18/10 ,  A62B18/025 ,  Y10T137/0491

    摘要： An exhalation valve 14 for a filtering face mask 10 has a flexible flap 24 that makes contact with a curved seal ridge 30 of a valve seat 26 when the valve 14 is in the closed position. The curvature of the seal ridge 30 corresponds to a deformation curve exhibited by the flexible flap 24 when secured as a cantilever at one end and exposed at its free portion to a uniform force and/or a force of at least the weight of the free portion of the flexible flap. A seal ridge curvature corresponding to a flexible flap exposed to uniform force allows the flexible flap 24 to exert a generally uniform pressure on the seal ridge to provide a good seal. A seal ridge curvature corresponding to a flexible flap exposed to a force of at least the weight of the flap's free portion allows the flexible flap 24 to be held in an abutting relationship to the seal ridge 30 under any static orientation by a minimum amount of force, thereby providing a face mask 10 with an extraordinary low pressure drop during an exhalation.

    摘要翻译： 用于过滤面罩10的呼气阀14具有柔性舌片24，当阀14处于关闭位置时，其与阀座26的弯曲密封脊30接触。 密封脊30的曲率对应于当柔性翼片24在一端被固定为悬臂并且在其自由部分处被暴露于均匀的力和/或至少自由部分的重量的力时所展示的变形曲线 的柔性皮瓣。 对应于暴露于均匀力的柔性翼片的密封脊曲率允许柔性翼片24在密封脊上施加大致均匀的压力以提供良好的密封。 对应于暴露于至少翼片自由部分的重量的力的柔性翼片的密封脊曲率允许柔性翼片24在任何静态取向下以最小的力量保持与密封脊30的邻接关系 从而在呼气期间提供具有非凡低压降的面罩10。

    Fibrous filtration face mask having a new unidirectional fluid valve
    10.
    发明授权
    Fibrous filtration face mask having a new unidirectional fluid valve 失效
    具有新型单向流体阀的纤维过滤面罩

    公开(公告)号：US07493900B1

    公开(公告)日：2009-02-24

    申请号：US09678580

    申请日：2000-10-03

    申请人： Daniel A. Japuntich ,  Vaughn B. Grannis ,  Harold J. Seppala ,  Anthony B. Ferguson

    发明人： Daniel A. Japuntich ,  Vaughn B. Grannis ,  Harold J. Seppala ,  Anthony B. Ferguson

    IPC分类号： A62B18/02 ,  A62B18/08

    CPC分类号： A62B18/084 ,  A62B18/025 ,  A62B18/10 ,  A62B23/025 ,  F16K15/16 ,  Y10T137/7891

    摘要： A filtering face mask that has a mask body and an exhalation valve. The mask body is adapted to fit over the nose and mouth of a wearer. The exhalation valve is attached to the mask body and includes a valve seat that comprises a seal surface, an orifice that is circumscribed by the seal surface, a flap-retaining surface, and a single flexible flap that has a fixed portion and a free portion and first and second opposing ends. The first end of the single flexible flap is associated with the fixed portion of the flap so as to remain at rest during an exhalation, and the second end is associated with the free portion of the flexible flap so as to be lifted away from the seal surface during an exhalation. The second end also is located below the first end when the filtering face mask is worn on a person. The flexible flap is positioned on the valve seat such that the flap is pressed towards the seal surface in an abutting relationship therewith when a fluid is not passing through the orifice. A valve cover is disposed over the valve seat and comprises a surface that mechanically holds the flexible flap against the flap-retaining surface.

    摘要翻译： 具有面罩主体和呼气阀的过滤面罩。 面罩主体适于装配穿戴者的鼻子和嘴部。 呼气阀附接到面罩主体，并且包括阀座，其包括密封表面，由密封表面限定的孔口，挡板保持表面和单个柔性挡板，其具有固定部分和自由部分 以及第一和第二相对端。 单个柔性翼片的第一端与翼片的固定部分相关联，以便在呼气期间保持静止，并且第二端与柔性翼片的自由部分相关联，以便从密封件 呼气时表面。 当过滤面罩戴在人身上时，第二端也位于第一端的下方。 柔性翼片位于阀座上，使得当流体不通过孔口时，翼片以与其抵接的关系朝向密封表面压迫。 阀盖设置在阀座上方并且包括将柔性翼片机械地保持抵靠翼片保持表面的表面。