Invention Grant
- Patent Title: Elevator car door interlock
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Application No.: US16850196Application Date: 2020-04-16
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Publication No.: US11124389B2Publication Date: 2021-09-21
- Inventor: Richard E. Kulak , Michael J. Tracey
- 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
- Main IPC: B66B13/20
- IPC: B66B13/20 ; B66B13/18 ; B66B13/12

Abstract:
A method of unlocking an elevator car door or an elevator car is provided including operating a door operator. A link arm of a car door interlock operably coupled to the door operator is rotated. If the elevator car is positioned within a landing door zone, an engagement link coupled to the link arm is configured to pivot relative to the link arm to disengage from an electrical contact. If the elevator car is not positioned within a landing door zone, the engagement link does not pivot relative to the link arm and remains engaged with the electrical contact.
Public/Granted literature
- US20200262683A1 ELEVATOR CAR DOOR INTERLOCK Public/Granted day:2020-08-20
Information query
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