Flush-mounted door latch
US5570915A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1993 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Nov 30, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/1055
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A flush-mounted latching device is provided for two-sided operation of a door. A spring-loaded cam engages a corresponding roller bearing mounted adjacent to the door to prevent opening when the latch is in a locked condition. Touch-operated push-buttons provided on either side of the door may be actuated to release the latch and allow the door to spring open. A push-button mounted flush with the interior surface of the door releases the latch immediately upon depression. A push-button mounted substantially flush with the exterior surface of the door releases the latch when depressed and then released. From either side, the door opens in a direction corresponding to the movement of an operator's finger upon actuating the corresponding push-button.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.