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US 9,393,625 B2Granted
Refacing tools and methods
AssigneeMagna-Sonic Stress Testers, Inc.
InventorKevin K. Manwaring
Life of this patent
Estimating the term…
Abstract
A high-torque connection refacing tool, including a shaft, a mandrel, a primary face plate, and a torque-stop face plate.
Claims31
A high-torque pipe box-end connection refacing tool, the refacing tool comprising:
- a shaft having a first end and a second end,
- a primary face refacing plate attached to the shaft at a fixed attachment point between the first end and the second end of the shaft, the attachment point being disposed at a fixed location along a length of the shaft such that movement or adjustment of the primary face refacing plate along the length of the shaft is prevented,
- a planar abrasive surface of the primary face refacing plate that rotates and engages a primary face of a box-end connection when refacing a box-end connection, the abrasive surface of the primary face refacing plate having a planar, ring-shaped configuration,
- a torque-stop refacing plate attached to the first end of the shaft in a fixed position,
- a planar abrasive surface of the torque-stop refacing plate that rotates and engages a torque-stop face of the box-end connection when refacing the box-end connection, the abrasive surface of the torque-stop refacing plate having a planar, circular configuration, the abrasive surface of the primary face refacing plate and the abrasive surface of the torque-stop refacing plate disposed in parallel planes and spaced apart by a fixed distance,
- a mandrel encircling the shaft in between the attachment point where the primary face refacing plate is attached to the shaft and the torque-stop refacing plate, wherein, during operation of the high-torque pipe box-end connection refacing tool, the shaft is freely movable back and forth in an unbiased manner relative to the mandrel;
- and
- a plurality of holes in the torque-stop refacing plate to provide an exit for material removed during operation of the refacing tool.
5 more elements
A box-end refacing tool for simultaneously refacing a primary face and a torque-stop face of a box-end connection, the box-end refacing tool comprising:
- a shaft;
- a primary face refacing plate connected to the shaft in a fixed position, the primary face refacing plate sized and configured to rotate and engage a primary face of a box-end connection when refacing a box-end connection, the primary face refacing plate including a refacing surface disposed at least substantially perpendicular to the shaft;
- a torque-stop refacing plate connected to the shaft in a fixed position, the torque-stop refacing plate sized and configured to rotate and engage a torque-stop face of the box-end connection when refacing the box-end connection, the torque-stop refacing plate including a refacing surface disposed at least substantially perpendicular to the shaft, the primary face refacing plate and the torque-stop refacing plate spaced apart by a fixed distance;
- a plurality of holes in the torque-stop refacing plate to provide an exit for material removed during operation of the refacing tool;
- and
- a mandrel slidably and rotatably connected to the shaft, the mandrel movable along a length of the shaft between the primary face refacing plate and the torque-stop refacing plate, the mandrel including threading to threadably connect the mandrel to the box-end connection.
3 more elements
Dependencies are inferred from the claim text.