Apparatus for actuating and locking a window sash
US4887392A · kind A · utility
28Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 13, 1989 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Apr 13, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/148
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus for causing a rotatable actuator to effect unlocking of a window latch and then to swing the window sash open when the actuator is rotated in one direction. When the actuator is rotated in the opposite direction, it first causes the sash to swing closed and then causes the latch to lock and hold the sash in its closed position. In one embodiment, the actuator is effective to swing an arm and shift a slide for purposes of moving the sash and operating the latch. In another embodiment, the actuator rotates a lead screw which advances nuts for moving the sash and operating the latch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.