Position make-up indicator system
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United States of America Patent
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-
Jan 26, 2016
Grant Date -
Aug 23, 2012
app pub date -
Feb 7, 2012
filing date -
Feb 21, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A method is shown by which threaded pipe sections are connected to form a tubular joint having proper sealing positioning at proper make-up torque. A make-up stencil plate is manufactured for each specific size of pipe to be coupled at the specific taper and make-up loss of a given connection with very tight tolerance. The plate is placed on the pin pipe end of the connection. A dial indicator is placed on the outer surface of the pipe pin end with the indicator flush with the end of the stencil plate. Once the indicator is set to zero, the stencil plate is removed. Then a bucking unit or power tong is applied to the coupling. When the face of the coupling hits the tip of the indicator and the indicator is within the given tolerance, the operator stops the make-up process.
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