Locking device
US12305423B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 2022 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | May 11, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B2047/0094
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A locking device includes a locking arm movable between a locked position and an unlocked position. The locking device additionally includes a shaft that engages the locking arm so as to move the locking arm between the locked and the unlocked position. The locking device further includes a key-driven actuator configured to rotate the shaft. The locking device also includes a motor-driven assembly which engages and rotates the shaft. The motor-driven assembly includes a motor, a rotatable screw, and a gear. The motor-driven assembly also includes a clutch which engages the shaft upon rotation of the gear. The clutch includes a first pawl configured to be actuated when the gear rotates in a first direction and a second pawl configured to be actuated when the gear rotates in a second direction, where the first and second pawls are configured to disengage with the shaft when the rotatable screw is stationary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.