Sash balance brake and pivot pin assembly
US5371971A · kind A · utility
54Cited by
12References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 4, 1993 |
| Grant date | Dec 13, 1994 |
| Priority date | — |
| Expiry date | May 4, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/148
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A sash balance brake and pivot pin assembly for a sash window which maintains the window substantially square prior to installation is disclosed. The pivot pin extends outwardly from the window sash. The sash balance brake is disposed within a track in the window frame and includes a cam rotatably disposed within an expandable housing. The pivot pin has a collar for lateral engagement with the cam to prevent the window frame from bowing away from the window sash, thereby maintaining the window frame substantially square.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.