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:
Jan. 07, 2020
Filed:
Nov. 06, 2017
Wireless Advanced Vehicle Electrification, Inc., Salt Lake City, UT (US);
James Stephenson, Salt Lake City, UT (US);
Patrice Lethelier, Salt Lake City, UT (US);
Wireless Advanced Vehicle Electrification, Inc., Salt Lake City, UT (US);
Abstract
A first apparatus for passive magnetic field attenuation comprises a wireless power transfer ('WPT') pad comprising one or more windings and a ferrite structure adjacent to the one or more windings, and a passive magnetic flux cancellation ('PMFC') structure located adjacent to the WPT pad. The PMFC structure includes one or more vertical shields oriented substantially perpendicular to the WPT pad, where each of the one or more vertical shields attenuates an electromagnetic field, and a vertical shield retention structure that retains each of the one or more vertical shields in position with respect to the WPT pad.