Patent ID: 9393625
Filing Date: 2016-07-19
CPC Classification: B23B,B24B,Y10T

Claim Text:
1. 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.