Patent ID: 7966857

Claim:
A method of making an HVAC high efficiency takeoff connector from a single sheet of generally planar metal, the method comprising: drawing the metal sheet to define a generally rectangular air inlet, a circular panel, and a first body portion projecting from a generally planar mounting flange, wherein the first body portion extends from the generally rectangular air inlet having a generally bow-shaped leading edge and that is coplanar with the mounting flange to the circular panel that is spaced from and generally parallel to the mounting flange, wherein the first body portion is defined by a leading end wall, two side walls and a trailing end wall with the circular panel at outer ends of the walls, and wherein the leading end wall has a different slope relative to the mounting flange than the trailing end wall; removing metal extending across the circular panel to define a round air outlet that is generally perpendicular to the mounting flange and offset toward the trailing end wall; drawing the outer ends of the walls of the first body portion to define a second body portion projecting further away from the mounting flange, wherein the second body portion forms a generally tubular takeoff neck that is aligned generally perpendicular to the mounting flange; and trimming excess metal from about the mounting flange to define a generally rectangular outer edge of the mounting flange.