发明名称 Ball and dart launcher with parallel axis release
摘要 BALL AND DART LAUNCHER WITH PARALLEL AXIS RELEASE A universal dart launcher (11) launches a dart (25) by moving a dart (25) from a first position to a second position. The universal dart launcher (1I) has a launcher body (13) defining a central bore (19) having an axis (20) and lower and upper ends configured to attach to a string of pipe. A cartridge (15) housed within the launcher body (13) may move perpendicular to the axis (20) from a first position to a second position. A drop member (25) is positioned within the cartridge (15) so that it will not be in axial alignment with the central bore (19) while in the first position, and will be in axial alignment with the central bore (19) while in the second position. An actuator assembly (17) couples to the launcher body (13) to move the cartridge (15) from the first position to the second position when actuated. ca ca Ln "t Ln V- N Ln Ln CN LO CN n n
申请公布号 AU2012202446(A1) 申请公布日期 2012.11.15
申请号 AU20120202446 申请日期 2012.04.27
申请人 VETCO GRAY INC. 发明人 GETTE, NICHOLAS PETER;MINASSIAN, MARC;CLINGMAN, JAMES CHRISTOPHER
分类号 E21B33/068 主分类号 E21B33/068
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