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1. 发明授权

US09169936B2 Safety anti-reversing device for a bottom of a basin 有权
标题翻译：用于盆底的安全防反转装置
公开(公告)号：US09169936B2
公开(公告)日：2015-10-27
申请号：US13939901
申请日：2013-07-11
申请人： NORHAM
发明人： David Turner , Francois Michel , Mikael Lamberton , Sebastien Pally
IPC分类号： F16K15/02 , E02D31/12 , F16K15/14
CPC分类号： F16K15/026 , E02D31/12 , F16K15/145 , Y10T137/7837
摘要： Able to prevent a leakage flow from a basin in a ground and to enable a filling flow from this ground, a safety anti-reversing device comprises a body comprising communicating openings for passage of the filling flow. Supported by this body, a flexible membrane comprises an annular shutter and a closing portion. The annular shutter is offset with respect to the communicating openings and swivels between a closed down position in which this annular shutter is applied in tight manner on the body, and an open position in which the annular shutter is away from the body. Distinct from the annular shutter, the closing portion covers the communicating openings so as to be able to hermetically close these communicating openings.
摘要翻译：一种安全防反转装置能够防止来自地面中的盆地的泄漏流动并且能够从该地面进行填充流动，其包括连通开口以使填充流通过的主体。由本体支撑，柔性膜包括环形挡板和封闭部分。环形挡板相对于连通开口偏移，并且在闭合的下降位置之间旋转，其中该环形闸板以紧密方式施加在主体上，并且环形挡板远离主体的打开位置。与环形闸板不同，关闭部分覆盖连通开口以能够密封这些连通开口。

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