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:
Sep. 15, 2026
Filed:
Jan. 12, 2024
Otis Elevator Company, Farmington, CT (US);
Arthur Hsu, South Glastonbury, CT (US);
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
A system and method for determining elongation of suspension members in an elevator system that includes an elevator car that is supported for movement within a hoistway by at least one suspension member and a counterweight that is coupled to the elevator car with the at least one suspension member. A first time is determined when the first interactive element detects a presence of the elevator car. A second time is determined when the second interactive element detects a presence of the counterweight. A speed and a direction of the elevator car are also determined. Elongation of the at least one suspension member is then determined by comparing a time difference between the first time and the second time to an elongation threshold.