Latch for pivotal sash window
US4791756A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 1988 |
| Grant date | Dec 20, 1988 |
| Priority date | — |
| Expiry date | Mar 11, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/148
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A latch for a pivotal window sash used in a double-hung window assembly. The latch is mounted internally in a sash frame member with its latch bolt protruding from the sash to engage in the guide rail of the main frame jamb of the window assembly. There is a finger manipulative control button external of the sash frame for releasing the bolt from said guide rail so that the window sash can be pivoted. The latch bolt is mounted under spring tension to maintain the bolt normally in a locked position. The several latch parts including the spring are maintained together in assembly as a unit to thereafter be installed in said window sash.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.