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    • 3. 发明申请
    • UNDERWATER SIGNALLING DEVICES
    • 水下信号装置
    • WO01041943A1
    • 2001-06-14
    • PCT/AU2000/001523
    • 2000-12-08
    • B06B1/18B63C11/26G10K1/068B63C11/22G08B3/06
    • B63C11/26G10K1/068
    • A signalling device (10) adapted to make a percussive sound, for example, under water. The signalling device (10) may be attached to a pressurised fluid source, such as a diver's compressed air supply, the device (10) including: a housing (12) having a passageway (22), at least in part, for communication with the fluid source; a valve member (34) located in the passageway (22) and movable between a closed position in which it substantially blocks the passageway (22), and an open position in which fluid may flow through the passageway (22); biasing means (42), such as a spring, biasing the valve member (34) towards the closed position, wherein the valve member (34) reciprocates between the open and closed positions when a pressure difference above a set value exists on either side of the valve member (34) to produce a percussive sound.
    • 一种适于在例如水下产生冲击声的信号装置(10)。 信号装置(10)可以附接到诸如潜水员的压缩空气源的加压流体源,该装置(10)包括:壳体(12),其具有通道(22),至少部分地用于与 流体源; 位于所述通道(22)中的阀构件(34),并且在其基本上阻挡所述通道(22)的关闭位置和可以流过所述通道(22)的打开位置之间移动; 诸如弹簧的偏压装置(42)将阀构件(34)偏置到关闭位置,其中当在一个设定值的压力差高于设定值的压力差时,阀构件(34)在打开和关闭位置之间往复运动, 阀构件(34)以产生冲击声。