Sash window arrangement
US4984402A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1989 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | Sep 29, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B3/5454
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A sash window is formed from a frame profile and a sealed window unit comprising a pair of spaced parallel glass panes. The frame profile includes a channel section with a tranverse web and upstanding side walls which are formed integrally without separate stops and integrally with a support element for the window frame. The frame profile is manufactured by pultrusion to provide a coefficient of expansion very close to that of glass. The sealed window unit is sealed to the window frame by a bead of sealant material only at the corner between the inner face of the window unit and the tranverse web supporting the side edge of the window unit. The sealant is thus protected from exposure to the elements. A drainage opening is provided in the web to allow the escape of moisture passing between the direct contact between the outer side wall and the outer face of the window unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.