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:
Nov. 10, 2026
Filed:
Apr. 13, 2023
Tk Elevator Innovation and Operations Gmbh, Düsseldorf, DE;
Rory Stephen Smith, Henderson, NV (US);
TK Elevator Innovation and Operations GmbH, Düsseldorf, DE;
Abstract
A method for determining the vertical position of an elevator cab in a hoistway comprising the steps of: providing an elevator cab positioned in a hoistway; providing an accelerometer attached to the elevator cab; providing a monitoring controller communicatively coupled to the accelerometer; measuring an acceleration using the accelerometer for a run sequence of the elevator cab; calculating a double integration of the acceleration determining a first estimated position of the elevator cab in the hoistway; measuring a change in acceleration using the accelerometer and detecting at least one buffet; determining a second estimated position of the elevator cab in the hoistway based upon the at least one detected buffet; comparing the first and second estimated positions; and updating a position of the elevator cab in the hoistway and determining a floor level. A pressure sensor may also be used to detect the buffet.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile