Patent ID: 8454057

Claim:
A threaded tubing end assembly comprising: a) a tubing having a transverse first end, a tubing through bore, a longitudinal weld seam internally extending into the tubing through bore, and a through slot extending axially from the first end to a length, wherein the through slot is located in a side of the tubing opposed to the weld seam; b) a threaded adapter having an adapter through bore, and an adapter body having a threaded first end having a male thread, and an opposed second end with an external transverse shoulder surrounding a reduced diameter elongated shank extending from the second end, wherein the elongated shank has an external longitudinal slot sized to accommodate the internally extending weld seam of the tubing; c) a circumferential weld sealingly connecting the first end of the tubing to the transverse external shoulder of the threaded adapter, when the tubing through bore is positioned around the shank of the adapter so that the first end of the tubing abuts the transverse external shoulder of the adapter and the tubing weld seam is accommodated in the longitudinal slot of the adapter; and d) a longitudinal weld filling the axially extending through slot of the tubing and providing a structural connection between the tubing and the elongated shank.