Automatic deadbolt mechanism for a mortise lock
US7007985B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2003 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Sep 9, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/558
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An automatic mechanism and method for moving a deadbolt between a retracted deadbolt position and an extended deadbolt position. A trigger is operatively coupled to the deadbolt and to the auxiliary latch. The trigger is configured to cause a first movement of the deadbolt from the retracted deadbolt position to the extended deadbolt position when the trigger moves from a first trigger position to a second trigger position, and to require movement of the auxiliary latch a predetermined distance from a retracted auxiliary-latch position toward an extended auxiliary-latch position before the trigger is able to cause a second movement of the deadbolt. The method includes as a step preventing the deadbolt from being released from the retracted deadbolt position until the auxiliary latch has moved a predetermined distance from the retracted auxiliary-latch position toward the extended auxiliary-latch position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.