Patent · US Active

Wireless power transmission systems for elevators

US9837860B2 · kind B2 · utility

14Cited by

240References

29Claims

0Family size

Assignee

WiTricity Corporation · US

Inventors

Colin McCarthy · Norwell, US
Herbert Toby Lou · Carlisle, US
Gozde Guckaya · Belmont, US

Key dates

Filing date	May 5, 2015
Grant date	Dec 5, 2017
Priority date	—
Expiry date	Mar 25, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH02J50/90
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The disclosure features a wireless power transmission system for an elevator that includes at least two wireless power sources disposed at intervals along a wall of an elevator shaft and coupled to a power supply, and at least one wireless power receiving device configured to be mounted to an exterior of an elevator cab and to be coupled to a load onboard the elevator cab, where during operation, the at least two wireless power sources are configured to generate an oscillating magnetic field to transfer wireless energy to the at least one wireless power receiving device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.