Electronic door lock dogging mechanism
US7055871B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2004 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Jul 14, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/699
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An electronic door lock dogging mechanism is provided with a bolt arranged to move into and out of a door to selectively engage a portion of a door frame to lock a door when extending out of the door and when recessed within the door, unlocking the door from the door frame. A first mechanical element is arranged to normally bias the bolt outwardly relative to the door. A first electrical element is arranged, when energized, to move the bolt into a recessed position in the door to unlock the door. A second mechanical element is arranged to be biased into a dogging position relative to the bolt when the first electrical element has moved the bolt into its recessed position. A third mechanical element is arranged to engage the second mechanical element to move it out of the dogging position when the third mechanical element is moved into a first position. A fourth mechanical element is arranged to bias the third mechanical element into the first position. The third mechanical element is arranged to move with the energization of the second electrical element to move the third mechanical element into a second position, moving the third mechanical element away from engagement with the se…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.