Portable pipe lathe and method
AssigneeFlexpipe Systems Inc.
InventorTARAS KARPACHEVSKYY
Life of this patent
Estimating the term…
Abstract
A pipe lathe includes a shaft; a cutting head supported on the shaft for movement with the shaft; a mandrel positionable on an outboard end of the shaft for supporting the shaft along a machining axis; and a first external pipe clamp and a second external pipe clamp, the first and the second external pipe clamps supported for external pipe engagement substantially concentrically about the machining axis. Multiple spaced apart engagement sites provided by the mandrel within the pipe and the external pipe clamps on an outer surface of the pipe support the pipe in a linear and centered position for machining by the cutting head, even when the pipe is non-linear, flexible and possibly with a cross section that is non-circular.
Claims10
A pipe lathe for machining a pipe comprising:
- a shaft;
- a cutting head supported on the shaft for movement with the shaft;
- a mandrel positionable on an outboard end of the shaft for supporting the shaft along a machining axis;
- and a first external pipe clamp and a second external pipe clamp, the first and the second external pipe clamps supported for external pipe engagement substantially concentrically about the machining axis.
A method for machining an end of a pipe, the pipe having an inner wall surface and an outer wall surface, the method comprising:
- engaging the pipe to be machined with a lathe at a plurality of axially spaced apart engagement sites along a long axis of the pipe, at least one of the engagement sites being an inner engagement site against the inner wall surface and at least one of the engagement sites being an outer engagement site against the outer wall surface;
- and machining an end of the pipe with a cutting head supported by the plurality of axially spaced apart engagement sites to move through a substantially concentric path relative to the long axis.
Dependencies are inferred from the claim text.