Single hung window construction with an upper fixed lite of glass and a movable bottom sash being generally coplanar
US10443283B2 · kind B2 · utility
1Cited by
28References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2017 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jan 31, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B9/52
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A single hung window has a window frame, an upper fixed lite of glass secured to the window frame and a movable lower sash secured to the window frame with the lower sash being generally coplanar with the upper fixed lite of glass. Lower sash retention elements secured to opposed jamb portions are operatively associated with the lower sash to facilitate securement of the lower sash in a plurality of positions. A balance system is secured within each jamb and is operatively associated with said lower sash. The lower sash may be structured to receive a screen. The sash may be employed alone without the upper fixed lite of glass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.