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:
Oct. 30, 2018
Filed:
Jan. 30, 2017
Otis Elevator Company, Farmington, CT (US);
Randall S. Dube, Glastonbury, CT (US);
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
According to one embodiment, an elevator car collision protection system is provided. The collision protection system comprising: a first antenna configured to be worn by a person entering a hoistway; a first trio of transceivers located a first selected distance away from a first impact wall of the hoistway, the first trio of transceivers being configured to detect a first clearance between an elevator car within the hoistway and the first trio of transceivers and a second clearance between the first antenna and the first trio of transceivers; and an alarm configured to activate when a collision risk level exceeds a selected risk level, wherein the collision risk level is determined in response to the first clearance and the second clearance.