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:
Feb. 17, 2026
Filed:
Sep. 12, 2019
Inventio Ag, Hergiswil, CH;
Christopher Mason, Ledgewood, NJ (US);
INVENTIO AG, Hergiswil, CH;
Abstract
A method for inferring a health status of call devices in an elevator arrangement uses a monitoring device for implementing the method steps of: determining elevator usage information by detecting: changing of an opening status of an elevator door, interrupting of a light curtain at an entry to an elevator car, and/or changing of a weight of the elevator car; determining elevator travel information concerning a starting floor and/or a target floor for an elevator car motion taking place antecedent or subsequent to the detected elevator event; inferring the health status of a monitored one of the call devices based on the elevator usage information and on the elevator travel information. The method allows determining the health status of call devices such as car call devices and hall call devices with a reduced number of sensors.