Patent ID: 9608455
Date: 2017-03-28
CPC Classifications: A47B,A47C,A61B,H02J

Claim:
1. A wireless electrical power system for use in a work area, said system comprising: a first wireless electrical power transmitter disposed in a surface that defines a portion of a work area; a portable article configured to be positioned within the work area and movable between two or more locations in the work area; a plurality of wireless electrical power receivers positioned at said portable article and configured such that a first of said wireless electrical power receivers receives electrical power from said first wireless electrical power transmitter when said first wireless electrical power receiver is adjacent or spaced from said first wireless electrical power transmitter by a distance that is less than or equal to a maximum transmission distance, wherein a second of said plurality of wireless electrical power receivers is positioned on a same side of said portable article and above said first wireless electrical power receiver; and a second wireless electrical power transmitter positioned at said portable article, wherein said second wireless electrical power transmitter is configured to (i) receive electrical power directly from one of the plurality of wireless electrical power receivers, and (ii) provide electrical power to another wireless electrical power receiver of an electrical device positioned at said portable article when said another wireless electrical power receiver is adjacent or spaced from the second wireless electrical power transmitter by a distance that is less than or equal to a maximum transmission distance.