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:
Aug. 06, 2024
Filed:
Jul. 12, 2023
Otis Elevator Company, Farmington, CT (US);
James L. Hubbard, Kensington, CT (US);
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
Elevator systems include an elevator car and a roller guide associated therewith. A roller is supported on a frame of the roller guide and configured to rotate along a guide rail and limit movement of the elevator car in a first direction. A motion state sensing assembly is mounted to the roller guide and configured to measure a motion state of the elevator car. The motion state sensing assembly includes an optical target located on the roller and an optical encoder device and associated a processor arranged to direct optical energy toward the optical target and detect a response thereof. A sensor housing is mounted to the roller guide with the optical encoder device arranged within the housing. A communication assembly is in communication with the processor and an elevator controller for communication therebetween.