Invention Grant
- Patent Title: Variable diameter pipe clamp apparatus and torque module therefore
- Patent Title (中): 因此可变直径管夹装置和扭矩模块
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Application No.: US13868789Application Date: 2013-04-23
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Publication No.: US09359839B2Publication Date: 2016-06-07
- Inventor: Jeffrey Lee Bertelsen
- Applicant: Jeffrey Lee Bertelsen
- Agency: Charter IP, LLC
- Agent Matthew J. Lattig
- Main IPC: E21B19/16
- IPC: E21B19/16 ; E21B4/00

Abstract:
A combination for making up and breaking out pipe at an oil rig site includes a torque module and at least one pipe clamp apparatus. The torque module includes a pair of hydraulic motors, a torque transmission driven by the motors, a herringbone gear segment driven by the transmission to rotate the torque module, and a pair of clamp cylinders actuated by the transmission. The at least one pipe clamp apparatus is actuated by at least one of the clamp cylinders to apply a uniform gripping load around a pipe that is pipe diameter independent.
Public/Granted literature
- US20140311732A1 VARIABLE DIAMETER PIPE CLAMP APPARATUS AND TORQUE MODULE THEREFOR Public/Granted day:2014-10-23
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