发明授权
- 专利标题： Flow retarding valve for fire hydrants
- 专利标题（中）： 消防栓阻水阀
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申请号： US887055申请日： 1986-07-18
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公开(公告)号： US4651772A公开(公告)日： 1987-03-24
- 发明人: Jack M. Carlin
- 申请人： Jack M. Carlin
- 专利权人： Carlin Jack M
- 当前专利权人： Carlin Jack M
- 主分类号： E03B9/02
- IPC分类号： E03B9/02
摘要：
A delay valve is attached to a fire hydrant and interposed between the hydrant and the hose and restricts the otherwise high flow and high pressure of the hydrant to a small fraction of the normal flow and pressure until the hose is filled up, at which point the valve opens fully so that the hose and hydrant are fully operational.
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