发明名称 |
Low-pressure inflatable valve |
摘要 |
A low-pressure valve that inserts into in a drainage system having has an inflatable balloon which fixates the value housing to a pre-existing drainage pipe to prevent backflow when the hydrostatic pressure is greater distal to the valve than proximal to the valve. |
申请公布号 |
US2012192971(A1) |
申请公布日期 |
2012.08.02 |
申请号 |
US20110931312 |
申请日期 |
2011.01.28 |
申请人 |
HOFELDT ALBERT JOHN;GASPICH MARK;GASPICH CAROLINE GRACE |
发明人 |
HOFELDT ALBERT JOHN;GASPICH MARK;GASPICH CAROLINE GRACE |
分类号 |
F16K21/04 |
主分类号 |
F16K21/04 |
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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