Invention Grant
- Patent Title: Elevator landing door unlocking system
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Application No.: US15832934Application Date: 2017-12-06
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Publication No.: US10822201B2Publication Date: 2020-11-03
- Inventor: Soufyen Rhouzlane , Valerie Mauguen
- Applicant: Otis Elevator Company
- Applicant Address: US CT Farmington
- Assignee: OTIS ELEVATOR COMPANY
- Current Assignee: OTIS ELEVATOR COMPANY
- Current Assignee Address: US CT Farmington
- Agency: Cantor Colburn LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@74c6c552
- Main IPC: B66B13/20
- IPC: B66B13/20 ; B66B13/06 ; B66B13/24

Abstract:
Elevator landing door lock assemblies and elevator landing doors having a lock with a keyway accessible from a landing of an elevator system, the lock operable to lock and unlock a landing door and a disengageable link operably connected to the lock and configured to prevent unlocking of the landing door when the disengageable link is not engaged. When an elevator car is aligned with the landing door, the disengageble link is engaged and completed such that the lock is operable to unlock and open the landing door, and, when an elevator car is not aligned with the landing door, the lock is not operable.
Public/Granted literature
- US20180186606A1 ELEVATOR LANDING DOOR UNLOCKING SYSTEM Public/Granted day:2018-07-05
Information query
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