Window with latch assembly
US5787643A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 3, 1995 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Oct 3, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05C3/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A window assembly has a latch assembly of enhanced strength. The latch assembly is mounted to the frame of the window assembly. A latch member is biased by a torsion spring towards a non-latching position, a latch-lock member is biased by a second torsion spring towards a non-locking position. The latch member engages a striker pin mounted to a base wall to secure the window in its normal, closed position. The latch-lock, latch member and striker pin are held together by the torsion springs and a series of detents on the latch-lock member and the latch member. A release bar is hingedly mounted to the latch assembly and moveable from a normal, closed, non-releasing position to an open, releasing position. Operation of the release bar forces a connection to actuate a trip lever, which in turn forces a latch-lock to rotate, sequentially disengaging the latch-lock detents from the latch member detents, thereby disengaging the latch member detent from the striker pin, allowing the window to open. In one embodiment the connection is a flange of a release bar hinge with a cam surface which forces a trip lever down to disengage the striker pin from the latch assembly. In a second embodimen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.