Operator for a casement-type window
US4305228A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 31, 1979 |
| Grant date | Dec 15, 1981 |
| Priority date | — |
| Expiry date | May 31, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/148
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An operator for a casement-type window having a frame and a sash mounted by a slider adjacent an edge of the sash for rotational opening and closing movement about a slider pivot axis with linear movement of the slider. The operator has a first sector gear fixed to the sash with the gear center offset relative to said slider pivot axis and a second gear meshing with the sector gear and functioning as a drive gear with a first link functioning to hold said gears in meshed relation and a constraining link connectable between the sash and the window frame with the constraining link and said first link acting to guide the opening and closing movements of the sash.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.