Patent ID: 7644539
Filing Date: 2010-01-12
Classification: E06B

Abstract:
1. An assemblage of components which in combination automatically and weathertightly seal a space at an interstice between a bottom edge of an inswinging exterior door and a door sill below it each time the door is closed, comprising: a sealing apparatus fastened to the underside of the door bottom edge consisting of a housing containing a generally cylindrical shaft running the substantial width of the door, an engaging component connected to the shaft, and an elongated arm protruding from the shaft with a flexible seal running the arm's length parallel to the shaft; a corresponding sill with accommodations for the engagement of the aforementioned engaging component, which engagement—initiated by the closing of the door—rotates the shaft so that the arm descends and forces the flexible seal against the sill, creating a weathertight closure; the aforementioned engaging component consisting of a pinion fastened to, and rotating with, the sealing-apparatus shaft under a swinging edge of the door, said swinging edge being opposite a pivoting edge of the door; the aforementioned pinion containing tapered, elongated teeth which, as the door is closing, engage in correspondingly inversely tapered and sized grooves in the top of the sill, running the length thereof, the engagement rotating the shaft and lowering the arm and seal in the process; the aforementioned pinion-and-sill engagement, which also serves to reverse the rotation of the shaft as the door is opened—raising the arm and seal clear of the sill and the floor to the interior thereof until the pinion and sill are fully disengaged.