Invention Grant
- Patent Title: Linear pipe recovery/lay tensioners and method of using same
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Application No.: US14475334Application Date: 2014-09-02
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Publication No.: US09671044B2Publication Date: 2017-06-06
- Inventor: Patrick K. Alloway , Kevin L. Preston , Loren D. Skiles
- Applicant: Control Flow, Inc.
- Applicant Address: US TX Houston
- Assignee: Control Flow, Inc
- Current Assignee: Control Flow, Inc
- Current Assignee Address: US TX Houston
- Main IPC: F16L1/23
- IPC: F16L1/23 ; E21B19/22 ; B65H51/14

Abstract:
Linear pipe recovery/lay tensioners can include one or more pivot assemblies for rotatably moving an upper track away from a lower track to facilitate placement of a pipe segment between the two tracks. In addition, or alternatively, the tensioners can include one or more hydraulic cylinders that provide flexible suspension to the upper and lower tracks so the tracks can move and rotate as necessary due to differing pipe segment shapes. In addition, or alternatively, the upper and lower tracks include one or more gripping pads having one or more gripping members that can be sheathed by a compliant member until such time as the pipe segment compresses the compliant member causing the gripping member(s) to protrude from the compliant member and engage the pipe segment. Rotation of the tracks is controlled by a hydraulic pump capable of rotating the tracks at the same rate or at different rates.
Public/Granted literature
- US20140369763A1 LINEAR PIPE RECOVERY/LAY TENSIONERS AND METHODS OF USING SAME Public/Granted day:2014-12-18
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