The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2026
Filed:
Jun. 14, 2023
Inventio Ag, Hergiswil, CH;
Jules Christen, Altdorf UR, CH;
INVENTIO AG, Hergiswil, CH;
Abstract
A method enables emergency unlocking of a car door of an elevator having a car movable within a shaft to a floor. The car door has an electrically activatable lock and the floor has a shaft door with an electrically activatable door lock. The car door lock has a first latch for locking a first car door leaf and an emergency unlocking mechanism. The shaft door lock can be accessed from the floor. An actuator is attached to the shaft door. The method includes the steps: the shaft door is unlocked from the floor by the shaft door lock being manually actuated; actuation of the shaft door lock moves the actuator from a first position to a second position; in the second position, the actuator actuates the emergency unlocking mechanism; and actuation of the emergency unlocking mechanism unlocks the car door lock to unlock the first car door leaf.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile