Sucker rod end fittings and method of using same

摘要

An improved end fitting for sucker rods or continuous sucker rods is described herein. The end fittings are designed so as to form wedges which enhance the connectability of the end fitting to the rod, and further, the wedge or wedges approach the rod asymptotically so as to avoid any abrupt discontinuities in the wedge or wedges thus substantially eliminating stress concentration areas and potential failure areas in the rod. The improved design provides for better formed wedges having a back relief to resist compressive forces and thus provide more reliable rod to end fitting connections.