发明名称 |
VENTILATION VALVE OF BACK FLOW |
摘要 |
A ventilation valve of back flow includes a gate installed coaxially with pipe and arranged as rotary screw placed in tube and brought to effect with working wheel of wind motor installed on one shaft with it. Diameter of working wheel of windmill is larger or equal to diameter of rotary screw. |
申请公布号 |
UA33769(U) |
申请公布日期 |
2008.07.10 |
申请号 |
UA20080002816U |
申请日期 |
2008.03.04 |
申请人 |
PELYPENKO OLEKSANDR MYKHAILOVYCH |
发明人 |
PELYPENKO OLEKSANDR MYKHAILOVYCH |
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