发明名称 Valve having mechanism for diverting reverse gas flow
摘要 The present invention is to provide a valve with a safety mechanism for diverting reverse gas flow being mountable in a gas lighter wherein a shoulder is formed around a mouth proximate a forward opening of a sleeve and is spaced apart from the forward opening by a predetermined gap when an actuation member is not pressed, the actuation member is pressed to lift a leakproof nut at a bottom of the mouth for opening a bottom hole of a seat to permit gas to flow into the valve, the shoulder then contacts the forward opening for blocking gas flow and direct the gas flow to a nozzle through a hose for ignition. Thus, after the actuation member being released, the gas remaining in the hose will flow back and leak through the gap and the forward opening to the outside because the gas pressure in the hose is larger than the outside pressure.
申请公布号 US7033166(B2) 申请公布日期 2006.04.25
申请号 US20040847870 申请日期 2004.05.19
申请人 HSU HUANG-HSI 发明人 HSU HUANG-HSI
分类号 F23D14/28;F23D14/72;F23Q2/173 主分类号 F23D14/28
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