Patent ID: 8079621

Claim:
A reusable tube fitting assembly for a gas burner, comprising: a pre-deformed tube connector having first and second ends, at least one of the ends having a single annular sealing bead comprising at least two intermediate annular beads compressed and cold worked together, the single annular sealing bead comprising a primary sealing surface portion and a secondary portion adjacent the primary sealing surface portion, the secondary portion formed having an exterior surface free of any axial gap between the intermediate annular beads; a first coupling member defining a cavity and having a shaped sealing surface adapted to sealingly engage a cooperating surface of the annular sealing bead; and a second coupling member rotatably and slidably disposed on the pre-deformed tube member and adapted to mate with the first coupling member; wherein the pre-deformed tube connector does not undergo any plastic deformation during assembly of the first and second coupling members.