Installation and removal of top drive units
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 13, 1999
Grant Date -
N/A
app pub date -
Oct 3, 1996
filing date -
Oct 3, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention features an assembly for use with a drilling rig having a mast and a first torque guide section mounted to the mast. The first torque guide section has an end and a coupler mounted near the end. The assembly includes a second torque guide section and a fastener mounted to the second torque guide section. The fastener is configured to form a releasable pivotal connection with the coupler.
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Family
International Classification(s)
Cited Art Landscape
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