发明名称 |
Broad band seismic vibrator |
摘要 |
A broad band seismic vibrator includes a hydraulically-operated actuator with a piston shaft depending from the actuator. A spherical member or ball is secured to an end of the shaft and received in a socket provided in an anvil. The spherical member or ball is securely clamped to the end and in its clamped condition affords the sole support for the actuator. Hydraulic means is provided for unclamping the spherical member to enable the positioning of the actuator in selected degrees of inclination from vertical and azimuth.
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申请公布号 |
US5252785(A) |
申请公布日期 |
1993.10.12 |
申请号 |
US19920817881 |
申请日期 |
1992.01.07 |
申请人 |
INDUSTRIAL VEHICLES INTERNATIONAL |
发明人 |
CHRISTENSEN, ELMO W. |
分类号 |
G01V1/047;G01V1/053;(IPC1-7):G01V1/02 |
主分类号 |
G01V1/047 |
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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