Patent ID: 7631693

Claim:
A plug assembly for use in a tubing, wherein the tubing has an inner surface along which a longitudinal seam extends, comprising: an anchoring element operable to secure the plug assembly within the tubing, wherein the anchoring element is extendable from the plug assembly at a first circumferential position to engage the inner surface of the tubing at a location spaced apart from the seam; a seal element operable to create a sealing engagement between the plug assembly and the inner surface of the tubing; and an orientation element configured to engage the seam and positioned on the plug assembly at a second circumferential position that is different from the first circumferential position; wherein the spacing between the first and second circumferential positions is great enough such that when the orientation element engages the seam, the anchoring element engages the inner surface of the tubing but not the seam.