Patent ID: 8316684
Filing Date: 2012-11-27
Classification: B25B,F16L

Abstract:
1. A tool for use on a generally tubular workpiece, said tool comprising: a clamp base having an opening; a first jaw coupled to the clamp base with a first linkage, the first jaw comprising a first generally semi-cylindrical portion having a first curvilinear support surface, the first curvilinear support surface extending between a top end and a bottom end and shaped to complement a selected generally tubular workpiece, the first jaw further comprising a first inner layer overlapping at least a portion of the first curvilinear support surface and defining a first workpiece contacting surface; a second jaw coupled to the clamp base with a second linkage, the second jaw comprising a second generally semi-cylindrical portion having a second curvilinear support surface, the second curvilinear support surface extending between a top end and a bottom end and shaped to complement a selected generally tubular workpiece, the second jaw further comprising a second inner layer overlapping at least a portion of the second curvilinear surface and defining a second workpiece contacting surface; a translation mechanism disposed on or within the clamp base operatively coupled to the first and second jaws via one or more adjusting links; wherein the one or more adjusting links are coupled on a first end to either or both of the first and second jaws and on a second end to the translation mechanism such that the adjusting links are extendable from and retractable into the clamp assembly via movement of a handle coupled to the translation mechanism; wherein the first and second jaws are adapted to move, under force of the adjusting links and via their respective linkages, within the opening between an open position in which the respective bottom ends of the first and second jaws are spaced apart to a closed position in which the respective bottom ends of the first and second jaws are abutting.