发明名称 GRAVITY ORIENTATION DEVICE
摘要 A gravity orientation device comprises a cylindrical casing, a shaft rotatably mounted in the casing along the longitudinal axis thereof and having pointed ends contacting bearing surfaces located in the ends of the casing, an encoder mounted within the casing and having a fixed portion secured to the casing and a rotary portion secured to the shaft, and a weight pendulum mounted on the shaft for rotation around the shaft under the influence of gravity.
申请公布号 CA2061058(C) 申请公布日期 1994.12.13
申请号 CA19922061058 申请日期 1992.02.14
申请人 NORANDA INC. 发明人 GENDRON, ALAIN;SENECAL, PIERRE
分类号 G01C9/12;(IPC1-7):E21B47/02 主分类号 G01C9/12
代理机构 代理人
主权项
地址