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:
Jun. 22, 2021
Filed:
May. 07, 2015
Otis Elevator Company, Farmington, CT (US);
Aurélien Fauconnet, Isdes, FR;
Aurélien Fauconnet, Isdes, FR;
Pascal Rebillard, Gien, FR;
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
A hoistway access system for an elevator includes an access switch positioned at a selected landing floorof an elevator and operably connected to a controller. A remote controlled lockis located at landing doors of a landing floor providing access to a hoistway pit, and is operably connected to the controller. A safety actuation system is operably connected to an elevator car and operably connected to the controller. The controller is configured to command a drive system to drive the elevator car to an upper location when the access switch is activated, to define a selected safety volume in the hoistway defined by the hoistway pit and the elevator car, command engagement of the safety actuation system to stop and hold the elevator car, and command the lock to unlock when the safety actuation system is engaged, thereby allowing access to the hoistway via the landing doors.