Patent ID: 7210505

Claim:
An elbow for an exhaust conduit of a drying appliance, comprising: two nestable channel sections, each channel section having a generally C-shaped cross-section; each channel section having a connection mechanism along at least one side thereof such that the two channel sections are joinable to form a substantially tubular conduit, the conduit having a smooth interior surface substantially without obstructions; wherein each channel section is curved in an arc to provide a turn to the elbow; wherein each channel section comprises a flange along each side of the channel section; wherein the connection mechanism comprises lockable mating apertures and raised tabs, at least one connection mechanism being positioned on each flange to couple the channel sections together without protruding into the channel created by the channel sections, wherein the elbow provides a 1:1 ratio of length versus calculated friction loss reduction to airflow passing through the elbow from the drying appliance; and wherein the nestable channel sections are formed of a thin metal sheet such that the channel sections may be twisted to lock the tabs and apertures together to securely fasten the two channel sections together.