Air flow apparatus for a clothes dryer wherein a flexible wrap having sealing runners is supported in sliding engagement on the rotating drum to cover that portion of the perforated annulus that is not istantaneously aligned with the suction duct. The end of the wrap opposite the direction of rotation...http://www.google.com.au/patents/US5062219?utm_source=gb-gplus-sharePatent US5062219 - Air flow apparatus for clothes dryer
