公开(公告)号：USD296001S

公开(公告)日：1988-05-31

申请号：US886445

申请日：1986-07-17

申请人： Ying Y. Ng

设计人： Ying Y. Ng

公开(公告)号：US4752388A

公开(公告)日：1988-06-21

申请号：US864790

申请日：1986-05-19

申请人： Ying Y. Ng

发明人： Ying Y. Ng

IPC分类号： A01K63/04 ,  B01D23/10 ,  B01D27/08 ,  B01D29/36

CPC分类号： A01K63/045

摘要： An inlet conduit in the form of a rigid, perforated support for gravel in the base of a fishtank is communicatively connected to a chamber having a first portion housing filter means and two second portions on opposite sides of the filter means. A tube formed with apertures throughout its entire length extends longitudinally across the lower end of a convergent nozzle which has an elongate cross-section and extends upwardly from the filter means. The tube is supplied with pressurized air through a hose and, as a result, air bubbles issue at a uniform rate across the whole width of the nozzle and, as these bubbles pass upwardly through the nozzle, induce flow of water through the gravel, through slots formed in the inlet conduit, and through filtering material enclosed in the filter means to thereby clean the water drawn through the nozzle.

摘要翻译： 在鱼缸底部具有用于砾石的刚性，穿孔的支撑件形式的入口导管可连通地连接到具有第一部分壳体过滤装置和在过滤装置的相对侧上的两个第二部分的腔室。 在其整个长度上形成有孔的管子纵向延伸穿过会聚喷嘴的下端，其具有细长的横截面并从过滤装置向上延伸。 管通过软管供应加压空气，结果是在喷嘴的整个宽度上以均匀的速率发生气泡，并且当这些气泡向上通过喷嘴时，引起水流过砂砾，通过 在入口管道中形成的槽，以及通过过滤装置中的过滤材料，从而清洁通过喷嘴抽出的水。

公开(公告)号：USD293706S

公开(公告)日：1988-01-12

申请号：US807593

申请日：1985-12-11

申请人： Ying Y. Ng

设计人： Ying Y. Ng