Patent ID: 6484382
Filing Date: 2002-11-26
Classification: E21B,Y10T

Abstract:
A method of manufacturing an installable segmented shoulder for use in a body having a cylindrical opening therein, the cylindrical opening having an enlarged internal diameter circumferential groove providing an internal circumferential cylindrical wall surface and an upwardly facing circumferential bottom support surface, comprising the steps of:(a) machining an integral unitary toroidal shoulder blank having an external cylindrical wall surface substantially equal to said body circumferential groove wall surface and a toroidal bottom support surface substantially matching said body groove bottom support surface; (b) drilling a plurality of holes through said shoulder blank, each said hole having an axis parallel to a toroidal axis of said shoulder blank; and (c) cutting said shoulder blank into a plurality of at least three segments, at least one cut through one of said holes drilled, each segment having opposed end surfaces that match the end surfaces of adjacent segments, the opposed end surfaces of at least one segment being defined by paralleled spaced apart planes.