Doorway with DP enhanced sill
US8448384B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2009 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Aug 19, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B7/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A doorway with a sill attachment that increases a sill DP rating includes spaced vertical jambs, a head jamb, and a sill, all of which form a door frame, and a door panel mounted in the frame. The sill is a substantially hollow contain-and-drain type sill with a nosing provided with drainage openings. a substantially hollow sill attachment is mounted to and extends along the nosing and the attachment projects downwardly to a position below the openings in the nosing of the sill. The drainage openings communicate with the interior of the extension. Weep holes that communicate with the environment are located in the sill attachment at a position below the openings in the nosing of the sill. The sill and sill attachment may be formed as a single component, or as separate components assembled either in the factory or the field. The attachment increases a column height of water that can be accommodated by the sill before leakage occurs, and thus enhances the DP rating of the sill.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.