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:
Mar. 03, 2020
Filed:
May. 12, 2017
Otis Elevator Company, Farmington, CT (US);
Sandeep Sudi, Unionville, CT (US);
Daniel M. Tripp, Sr., Deerfield, NH (US);
Sally Day Mahoney, New Hartford, CT (US);
Frank Higgins, Burlington, CT (US);
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
Elevator systems having an elevator car within an elevator shaft are described. The systems include a plurality of landing doors located at respective landings within the elevator shaft with at least one landing positioning element installed within the elevator shaft and positioned relative to at least one landing door. An inspection system is configured with a detector located on the elevator car and arranged to detect the presence of the landing positioning element in an inspection region to determine if a position of the elevator car relative to the landing door is within a predetermined range.