Invention Grant
- Patent Title: Bogey style torque bushing for top drive
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Application No.: US14138658Application Date: 2013-12-23
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Publication No.: US09834990B2Publication Date: 2017-12-05
- Inventor: Ryan Thomas Bowley , Edgar Fernando Yajure
- Applicant: TESCO CORPORATION
- Applicant Address: US TX Houston
- Assignee: TESCO CORPORATION
- Current Assignee: TESCO CORPORATION
- Current Assignee Address: US TX Houston
- Agency: Fletcher Yoder, P.C.
- Main IPC: E21B3/02
- IPC: E21B3/02 ; E21B15/00 ; E21B19/02

Abstract:
Present embodiments are directed to a top drive system having a top drive, a bogey chassis, wherein the top drive is coupled with the bogey chassis, an upper bushing coupling the bogey chassis to a torque track, and a lower bushing coupling the bogey chassis to the torque track, wherein the upper and lower bushings are configured to translate along the torque track.
Public/Granted literature
- US20140182868A1 BOGEY STYLE TORQUE BUSHING FOR TOP DRIVE Public/Granted day:2014-07-03
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