Method of assembling a window balance system
US10533359B2 · kind B2 · utility
6Cited by
201References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2017 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Aug 17, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B3/5063
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A snap lock balance shoe of a balance system may be incorporated in pivotable double hung windows. In one embodiment, the snap lock balance shoe includes a pair of retractable tabs that partially extend through openings within an inverted window balance channel. The shoe includes a locking member that extends toward a window jamb when a cam of the shoe is rotated. This extension locks the balance system in place in the window jamb. During a method of assembly of the balance system, the snap lock balance shoe may be engaged with the channel and then pivoted to secure the snap lock balance shoe to the channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.