06906495 is referenced by 314 patents and cites 81 patents.

A system and method for transferring power does not require direct electrical conductive contacts. There is provided a primary unit having a power supply and a substantially laminar surface having at least one conductor that generates an electromagnetic field when a current flows therethrough and having an active area defined within a perimeter of the surface, the at least one conductor being arranged such that electromagnetic field lines generated by the at least one conductor are substantially parallel to the plane of the surface within the active area; and at least one secondary device including at least one conductor that may be wound about a core; wherein the active area has a perimeter large enough to surround the conductor or core of the at least one secondary device in any orientation thereof substantially parallel to the surface of the primary unit in the active area, such that when the at least one secondary device is placed on or in proximity to the active area in a predetermined orientation, the electromagnetic field induces a current in the at least one conductor of the at least one secondary device.

Title
Contact-less power transfer
Application Number
10/326571
Publication Number
6906495 (B2)
Application Date
December 20, 2002
Publication Date
June 14, 2005
Inventor
Pilgrim Giles William Beart
Cambridge
GB
James Westwood Hay
Cambridge
GB
Lily Ka Lai Cheng
Cambridge
GB
Agent
Seth M Nehrbass
Garvey Smith Nehrbass & Doody L L C
Assignee
Splashpower
GB
IPC
H01M 010/46
H01M 010/44
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