| 发明名称 | Mouse hole damper device | ||
| 摘要 | A mouse hole damper device positioned at the bottom portion of a mouse hole pipe, the mouse hole damper being arranged to dampen an impact from an object falling in the mouse hole pipe, and the mouse hole damper including a material which has been worked into forming walls around elongated openings, and the material being arranged in such a way that the openings are substantially parallel to the longitudinal axis of the mouse hole pipe. | ||
| 申请公布号 | US8844688(B2) | 申请公布日期 | 2014.09.30 |
| 申请号 | US200913126729 | 申请日期 | 2009.10.26 |
| 申请人 | National Oilwell Norway AS | 发明人 | Pedersen Jan Erik |
| 分类号 | F16F7/12;E21B41/00;E21B19/00;E21B19/14 | 主分类号 | F16F7/12 |
| 代理机构 | Conley Rose, P.C. | 代理人 | Conley Rose, P.C. |
| 主权项 | 1. A mouse hole damper device positioned at the bottom portion of a mouse hole pipe, the mouse hole damper device being arranged to dampen an impact from an object which is falling in the mouse hole pipe, the mouse hole damper device comprising: a material which has been worked into forming walls around elongated openings, the material being arranged in such a way that the openings are substantially parallel to the longitudinal axis of the mouse hole pipe; a guide configured to guide the object toward a centre axis of the mouse hole damper device; and a distributor configured to distribute forces applied to the mouse hole damper device, wherein the distributor includes an upper plate, a lower plate, and an intermediate piece extending between the upper plate and the lower plate. | ||
| 地址 | Kristiansand S NO | ||