发明名称 |
VALVE ASSEMBLY |
摘要 |
<p>A plumbing arrangement is described for a toilet pan connected to a waste disposal pipe. The waste pipe has an extension extending a short height above the flood level of the water trap. The upper end of the extension is closed off by a two way differential valve opening to the atmosphere. A cover is provided to permit the air flow to and from the valve but still to prevent the ingress of leaves or dirt which could have a detrimental effect upon the working of the valve. A number of embodiments of valve means are also described.</p> |
申请公布号 |
AU2192888(A) |
申请公布日期 |
1989.03.09 |
申请号 |
AU19880021928 |
申请日期 |
1988.09.07 |
申请人 |
G.I. MARKETING C C |
发明人 |
IVOR GAVIN VAN DEVENTER;GERRIT RUDOLPH CARLOS DI SOMMA |
分类号 |
E03C1/12;F16K17/196;(IPC1-7):E03D9/04;F16K15/14;F16K17/18 |
主分类号 |
E03C1/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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