Transmission for adjustable sashes in door-or window frames
US5388370A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1993 |
| Grant date | Feb 14, 1995 |
| Priority date | — |
| Expiry date | Apr 2, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B63/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
One stile of the sash in a door or window frame has an elongated channel for an elongated trough-shaped gear case rotatably receiving a first gear in mesh with the toothed rack of a reciprocable carrier in the gear case. A bifurcated end portion of the carrier mounts a second gear which meshes with a fixed rack of the gear case and with an elongated rack which is slidable along and overlies an open side of the gear case. The first gear can be rotated by a handle to move the carrier whereby the second gear rolls along the fixed rack and causes the elongated rack to perform a movement greater than the carrier. The elongated rack is coupled to motion receiving bars in the channel of the stile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.