| 发明名称 |
Hold open configuration for safety valve and method |
| 摘要 |
An actuator and counterbalance system including a nonmobile carrier; a mobile carrier, mobile relative to the non mobile carrier; and a counterbalance system in operable communication with the mobile carrier and configured to counterbalance less than 100 percent of a return force of a tool actuated by the actuator and method. |
| 申请公布号 |
US8398050(B2) |
申请公布日期 |
2013.03.19 |
| 申请号 |
US20090540945 |
申请日期 |
2009.08.13 |
| 申请人 |
LAKE GARY;RANJAN PRIYESH;WILSON KENNETH;RAINONE MICHAEL;GRISHAM PHILLIP;SACKETT SAMUEL;BAKER HUGHES INCORPORATED |
发明人 |
LAKE GARY;RANJAN PRIYESH;WILSON KENNETH;RAINONE MICHAEL;GRISHAM PHILLIP;SACKETT SAMUEL |
| 分类号 |
F16K31/08 |
主分类号 |
F16K31/08 |
| 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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