Latch assembly
US6773042B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Apr 24, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/1082
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A latch assembly (10, 110, 210, 310) for releasably securing a door in a closed position, the assembly comprising an actuator (15, 115, 215, 315) with an actuator output, the actuator having a first relatively fast acting low force output mode and a second relatively slow acting high force output mode, the actuator output being interconnected with a latch bolt (46, 146, 246, 346) of the assembly such that the latch bolt may be relatively rapidly released by the actuator operating in its first output mode when the load required to unlatch the latch bolt is relatively low, but relatively slowly unlatched by the second output mode when the load required to unlatch the latch bolt is relatively high.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.