发明名称 |
SELF-CONTAINED, AUTOMATIC PRIMER VALVE FOR SEWER LINE DRAIN TRAPS |
摘要 |
<p>A primer valve for sewer line drain traps comprises a case having an upper water inlet communicating with the pressurized house line and a lower water outlet communicating with the trap. The hollow interior of the case is divided into a lower valved dispensing chamber which dispenses water into the trap; an intermediate supply chamber which supplies water to the primer valve system, and an upper trapped-air chamber. The latter actuates the valve in the dispensing chamber and dispenses water to the trap each time the pressure in the house line drops.</p> |
申请公布号 |
CA1114715(A) |
申请公布日期 |
1981.12.22 |
申请号 |
CA19790340740 |
申请日期 |
1979.11.27 |
申请人 |
PRECISION PLUMBING PRODUCTS, INC. |
发明人 |
SULLIVAN, RICHARD N. |
分类号 |
E03C1/296;E03D5/12;E03F7/00;(IPC1-7):16K9/00 |
主分类号 |
E03C1/296 |
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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