Patent ID: 6126369
Filing Date: 2000-10-03
Classification: F16L,Y10T

Abstract:
A tool for tapping from a branch pipe into a main pipe at an upstream end of the branch pipe, comprising:a shaft for transmitting torque to a bit secured to an upstream end of the shaft for cutting a hole in the main pipe, said shaft having a first section and a second section, said first section comprising a threaded downstream end detachably engaging a threaded upstream end of the second section, wherein the upstream end of the first section is coupled to the bit; anda branch-engaging member engaged to the branch pipe adjacent a downstream end of the branch pipe,wherein the shaft has an externally threaded section engageable with a threaded section of the branch-engaging member so that as the shaft is rotated in a first direction, the bit is driven along a longitudinal axis of the branch pipe towards the main pipe.