| 发明名称 |
PROPORTIONAL CONTROLLED ORIFICE FOR METERING GRANULAR MATERIAL |
| 摘要 |
<p>Disclosed herein is a gate valve design with a proportionally controlled orifice area. The moving element of the gate is shaped to cooperate with a fixed element so that as the gate opens, the open orifice area changes geometrically.</p> |
| 申请公布号 |
WO2013169598(A1) |
申请公布日期 |
2013.11.14 |
| 申请号 |
WO2013US39539 |
申请日期 |
2013.05.03 |
| 申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
FISHER, CHAD, A. |
| 分类号 |
F16K3/02;B65D90/58;F16K3/03 |
主分类号 |
F16K3/02 |
| 代理机构 |
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代理人 |
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| 地址 |
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