Accessible sill with flexible dam for water containment and drainage
US8375659B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2010 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Aug 29, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/007
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A handicap accessible doorway includes a frame having side jambs and a low profile sill extending between the bottom portions of the jambs. A flexible fin extends along the length of the sill and projects upwardly therefrom to form a water dam. The flexible fin is sealingly attached at each end to a jamb. During a blowing rainstorm, water is contained by the dam and directed to a contain-and-drain water management system, which directs the water away from the doorway to an exterior weep hole or other drain port. The fin, being flexible, yields to the weight of a footstep or a wheelchair thereby maintaining the handicap accessible designation of the sill and the doorway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.