Patent ID: 8226068
Filing Date: 2012-07-24
Classification: B60H,F24F,Y10T

Abstract:
1. An assembly for carrying air in a supply system, comprising: a duct including an opening formed with an inner surface through which air can flow, and the inner surface being parallel to peripheral edges of a door; the door supported for movement between a sealed position, at which flow through the opening is relatively unobstructed, and a partially sealed position, at which flow through the opening is relatively obstructed, the door includes a periphery comprising a first series of ridges and grooves extending along at least a portion of a peripheral length of the door; and a seal including a second series of ridges and grooves extending along at least a portion of a peripheral length of the seal, secured to the periphery of the door and producing in the partially sealed position a gap between the seal and the inner surface, the gap having a continuously variable width along at least a portion of a length of the seal.