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1. 发明申请

US20050217730A1 Floating ball check valve 有权
标题翻译：浮球止回阀
公开(公告)号：US20050217730A1
公开(公告)日：2005-10-06
申请号：US11047183
申请日：2005-01-31
申请人： Michael Doutt
发明人： Michael Doutt
IPC分类号： F16K15/04
CPC分类号： F16K15/044 , Y10T137/0491 , Y10T137/6086 , Y10T137/7928
摘要： In an improved floating ball check valve including a body having an outlet port, a cap, having an inlet port, joined with the body, a ball guide slidably received within the body and having a ball pocket for receiving a sealing ball, a biasing spring for biasing the ball toward the inlet port, an annular seat retainer in the cap and a generally ring-shaped seat, of non-resilient plastic material of preferably thermoplastic or fluoroplastic composition, substantially received within a conical bore within the cap and retained therein via the seat retainer, with the spherical surface of the ball being urged into a sealing engagement with an arcuate/spheric sealing surface of the seat having a radius slightly larger than the radius of the sealing ball, with the noted seat materials and geometries permitting seat self-compensation for pressure and temperature. An improved manufacturing method is also set forth.
摘要翻译：一种改进的浮球止回阀，包括具有出口的主体，具有与本体连接的入口的盖，可滑动地容纳在主体内并具有用于容纳密封球的球窝的球形引导件，偏置弹簧用于将球朝向入口偏压，盖中的环形座圈保持器和大体上环形的座，优选热塑性或氟塑料组合物的非弹性塑料材料，基本上容纳在盖内的锥形孔内，并通过座椅保持器，球的球形表面被推动成与座椅的弓形/球形密封表面的密封接合，该密封表面的半径略大于密封球的半径，所述座椅材料和几何形状允许座椅自身 - 压力和温度补偿。还提出了改进的制造方法。

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