Patent ID: 7686359
Filing Date: 2010-03-30
Classification: B25B,Y10T

Abstract:
1. An improved extraction tool comprising: a base member comprising a squared head portion, an adapter socket, a cylindrical middle portion, a threaded portion, a conical transition bit mounting foot, a drill bit socket, a drill bit, and a plurality of drill bit fasteners, said drill bit coupling stem being substantially 0.75 inches in diameter and 2.25 inches in length; a kelly bar adapter flange bolted to drive tool adapter being capable of releasable attachment to said squared head portion of said base member, an extraction coupling being capable of releasable attachment to said squared head portion of said base member and further comprising an extraction tool adapter, handle, and extraction tool fastener holes, an adapter fastener being substantially 0.7375 inches outer diameter and capable of fitting within either the drive tool adapter or the extraction adapter; whereby said drill bit can be releasably attached to said base member, said kelly bar adapter flange bolted to drive tool adapter can be releasably attached to said squared head portion of said base member, and said improved extraction tool may be inserted within a rigid body; further whereby said extraction coupling can be releasably attached to said squared head portion of said base member, a pulling device can be attached to said handle, and said improved extraction tool may be used to lift and move said rigid body.