Patent ID: 8434526

Claim:
An air duct system, comprising: an air duct having a pliable sidewall to extend in a longitudinal direction, the pliable sidewall defining a plurality of openings, the pliable sidewall having a total weight; a framework to be disposed within the air duct, the framework comprising a material of less flexibility than that of the pliable sidewall, the framework further comprising: a shaft extending in the longitudinal direction; a rib to engage an inner surface of the air duct; and a plurality of spokes connecting the rib to the shaft; and a plurality of hangers corresponding to the plurality of openings, each hanger of the plurality of hangers comprising an elongate member having an upper section and a lower section, the lower section to be coupled to the framework via access through a corresponding opening of the plurality of openings, and most of the total weight of the pliable sidewall to be carried by the framework.