| 发明名称 | Actuator and method of actuating | ||
| 摘要 | An actuator includes, a housing, an expandable member housed within the housing configured to expand and contract, an elongated member in operable communication with the expandable member, and a ratchet in operable communication with at least one of the expandable member and the elongated member. The ratchet is configured to allow movement of the elongated member in a first direction relative to the housing in response to expansion of the expandable member and to prevent movement of the elongated member in a second direction in response to contraction of the expandable member until the elongated member has moved a selected dimension, after which the ratchet automatically permits movement of the elongated member in the second direction. | ||
| 申请公布号 | US9488259(B2) | 申请公布日期 | 2016.11.08 |
| 申请号 | US200912642130 | 申请日期 | 2009.12.18 |
| 申请人 | BAKER HUGHES INCORPORATED | 发明人 | Joseph Paul;Bogard Steve;Mendez Luis E. |
| 分类号 | F02G1/04;F16H31/00;E21B41/00 | 主分类号 | F02G1/04 |
| 代理机构 | Cantor Colburn LLP | 代理人 | Cantor Colburn LLP |
| 主权项 | 1. An actuator comprising: a housing; an expandable member housed within the housing configured to expand and contract; an elongated member in operable communication with the expandable member; and a ratchet in operable communication with at least one of the expandable member and the elongated member being configured to allow movement of the elongated member in a first direction relative to the housing in response to expansion of the expandable member and to prevent movement of the elongated member in a second direction in response to contraction of the expandable member until the elongated member has moved a selected dimension, the ratchet automatically permits movement of the elongated member in the second direction in response to the elongated member having moved the selected dimension. | ||
| 地址 | Houston TX US | ||