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. 18, 2022
Filed:
Nov. 05, 2019
Otis Elevator Company, Farmington, CT (US);
Gerard Sirigu, Gien, FR;
Guillaume Trouvain, Gien, FR;
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
Electrical systems of elevators and methods thereof, with an elevator alarm system configured to provide an alarm within an elevator car of the elevator system, wherein the elevator alarm system is configured to be supplied with power from a primary power source. A secondary power source includes a first storage device and a second storage device and a controller is configured to control a power flow from the secondary power source to the elevator alarm system when the primary power source fails and test a capacity of the first storage device by discharging a power of the first storage device and storing said discharged power within the second storage device.