Sliding counterbalance assembly for a sash window
US5661927A · kind A · utility
71Cited by
50References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1996 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Mar 6, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/148
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A slidable counterbalance assembly adapted for a sash window assembly disposed within a master frame is disclosed. A coiled leaf spring mounted on the counterbalance assembly has its upper end attached to the top of the guide rail channel of the master frame. A flexible strap is attached at one end to the sash window pivot brake and at the other end to the counterbalance assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.