Patent ID: 8146295

Claim:
An extended door assembly, comprising: a z-bar member including a flange portion and a web portion separated by a barrel portion, said flange portion and said web portion being substantially orthogonal with respect to each other and being integral with said barrel portion, said z-bar member including an inward-facing surface and defining a first longitudinal axis and a cross-section perpendicular to said first longitudinal axis, said barrel portion defining a first arcuate segment of said cross-section having an inner radius that is substantially constant over a first arc having an angle that is greater than 135°; a z-bar extension member including an extender flange portion and an extender web portion separated by an extender barrel portion, said extender flange portion and said extender web portion being substantially orthogonal with respect to each other and being integral with said extender barrel portion, said z-bar extension member including an outward-facing surface and defining a second longitudinal axis and an extender cross-section perpendicular to said second longitudinal axis, said extender barrel portion defining a second arcuate segment of said extender cross-section having an outer radius that is substantially constant over a second arc having an angle that is greater than 135°, said outer radius of said extender barrel portion of said z-bar extension member being less than said inner radius of said barrel portion of said z-bar member, wherein said z-bar extension member is engaged with said z-bar member so that the outward-facing surface of said extender barrel portion of said z-bar extender is in contact with the inward-facing surface of said barrel portion of said z-bar.