| 摘要 |
<p>A water drain for insertion into a mating wall opening in an extruded, holl ow door or window sash or frame. A round, rectangular or the like housing havin g at least one peripheral front flange defining a drain opening is adapted for abutment against a wall of the sash or frame, said housing having a top wall portion and a bott om wall portion perpendicular to the front flange, and a pair of opposed side wall portions, a baffle extending downwardly from the housing top wall portion for partially closing an upper portion of the drain opening, and a flap having a lower planar rear surface and an upper planar front surface for opening and closing lower and upper portions of the drain opening. The planar lower rear surface portion is joined to the upper front surface portion by a pivot axis, the planar lower surface being disposed forwardly o f the upper planar front surface whereby the flap tends to gravitate to an at-rest, closed, substantially vertical position. The flap has a lug extension at each end of the pivot axis for insertion into mating holes in said side wall portions of the housi ng for pivotal mounting of the flap in the housing drain opening, whereby the flap planar lower surface can pivot from a substantially vertical at-rest closed position to a n open position for the drainage of water.</p> |
