Door mortise lock
US9284750B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2013 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Feb 25, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/0964
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Provided is a door mortise lock that may improve product safety and user convenience by enabling a latch bolt operates to be unlocked after a dead bolt of the door mortise lock completely operates. To this end, the door mortise lock includes: a dead bolt driving unit that operates a dead bolt; a latch bolt driving unit that unlocks a latch bolt when a time interval passes after the dead bolt is unlocked by the dead bolt driving unit; and a connection unit that is disposed between the dead bolt driving unit and the latch bolt driving unit, and selectively operates the dead bolt driving unit and the latch bolt driving unit so that the dead bolt and the latch bolt are sequentially unlocked with a time interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.