Patent ID: 8375659
Filing Date: 2013-02-19
Classification: E06B

Abstract:
1. A wheelchair accessible doorway comprising: a threshold having a first end, a second end, an interior edge portion, and an exterior edge portion, the threshold extending along a bottom of the doorway; a first vertical jamb attached at a bottom end to the first end of the threshold; a second vertical jamb attached at a bottom end to the second end of the threshold; a door panel; a flexible water retention fin sealingly attached to and projecting upwardly from the threshold, the flexible water retention fin also being sealingly attached both to the first vertical iamb, and to the second vertical jamb and extending partially up said iambs from the threshold; and the flexible water retention fin being reversibly collapsible such that the threshold has a height of 0.5 inches or less when the flexible water retention fin is collapsed toward the interior edge portion or toward the exterior edge portion of the threshold in response to passage of a wheelchair across the threshold; and a first corner key connecting the first jamb to the first end of the threshold and a second corner key connecting the second jamb to the second end of the threshold, wherein the fin is sealingly attached to the first corner key and the second corner key.