Patent ID: 7574807
Filing Date: 2009-08-18
Classification: B23D

Abstract:
1. A pipe cutter for cutting a pipe from the inside through insertion of the pipe cutter through an open end of the pipe, the pipe cutter including in combination: an elongated shaft having first and second ends, with the first end adapted for connection to a source of rotational power; a pipe pressing housing located between the first and second ends of the elongated shaft and having a diameter less than the diameter of the inside of a pipe to be cut; a rotary saw blade connected to the second end of the elongated shaft; and a mechanism in the centering housing coupling the shaft and the housing to move the shaft from an initial position with the saw blade out of contact with the pipe radially outwardly in the centering housing to cause the saw blade to engage and cut the pipe; wherein the mechanism coupling the shaft and the pressing housing operates to move the shaft to become parallel to the central axis of the pipe, Further including an elongated hollow sleeve having first and second ends and having a length less than the length of the elongated shaft, where the elongated shaft extends through the hollow sleeve for free rotation therein, and wherein the pipe pressing housing is coupled with the hollow sleeve adjacent the second end thereof, with the second end of the elongated shaft extending beyond the second end of the hollow sleeve.