Position make-up indicator system
US9243729B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2012 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Apr 26, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49766
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.