Patent ID: 8888419
Filing Date: 2014-11-18
Classification: B23B,B23C,B23Q,B24B,E21B,F01C,F04C,Y10T

Abstract:
1. A tool for working the internal bore of a tube having a tube axis, the tool comprising: a motor including a housing and a rotary output; a housing sleeve having a proximal end connected to the housing of the motor and disposed about the rotary output; a housing shaft disposed in the housing sleeve, wherein the housing shaft has a proximal end connected to said rotary output; a first bearing housing having a proximal end connected to a distal end of the housing sleeve; an end sleeve having a proximal end coupled to a distal end of said first bearing housing; an end shaft disposed in the end sleeve; a tool head having a proximal end connected to a distal end of said end sleeve and disposed about the end shaft, wherein the tool head includes a rotary input drivingly coupled to the end shaft; wherein said motor output rotates the housing shaft, the first bearing spindle, the end shaft and the tool head input about a common axis; an output of said tool head adapted to receive a tool bit, wherein the output of the tool head has a central axis that is oriented at an angle relative to the common axis; gauge means for bearing against the bore of the tube and maintaining the radial location of the tool head with respect to the tube axis, wherein the gauge means is disposed on the tool head; a tool bit coupled to the tool head output; and support means for bearing against the bore of the tube and supporting the tool, wherein the support means is disposed on one or more of said housing sleeve, said first bearing housing and said end sleeve.