Weep hole construction
US6374557B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2000 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Jun 30, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B7/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A window unit (14) has an extruded frame (12) and a moveable window panel (4). The frame (12) has a channel (24) for mounting the window panel therein and a cavity (36) disposed outwardly of the channel (24). The frame (12) further has first and second throughbores (60, 69) for facilitating communication between the channel and the cavity, wherein the first throughbore (60) is disposed at a level below the second throughbore (69). A third throughbore (64) is provided for facilitating communication between the cavity (36) and an external environment. A first weeper (8) is mounted in the first throughbore (60), including a flapper valve (62) characterized by open and closed positions, wherein the flapper valve (62) assumes the open position upon urging by fluid pressure in the channel (24). The frame (12) may also include a second weeper (10) mounted in the third throughbore (64) wherein the first and second weepers (8, 10) can be configured to be an internal weeper (8) or an external weeper (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.