发明名称 VENTED STEAMER PORT CAP ASSEMBLY
摘要 The present invention relates generally to methods and devices for providing a fire hydrant with a vented steamer port cap assembly to allow air and water to pass through an upper area of a fire hydrant. Various embodiments include hydrants with a vented steamer port cap assembly. In other embodiments, a secondary valve is included in the barrel of the fire hydrant to controllably allow liquid to flow through the hydrant.
申请公布号 US2009229679(A1) 申请公布日期 2009.09.17
申请号 US20080047681 申请日期 2008.03.13
申请人 DAVIDSON SR TOM R;FERRARI ANTHONY;MORENO CARLOS 发明人 DAVIDSON, SR. TOM R.;FERRARI ANTHONY;MORENO CARLOS
分类号 E03B9/02 主分类号 E03B9/02
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