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:
Nov. 13, 2018
Filed:
May. 01, 2017
Hevo Inc., Brooklyn, NY (US);
Umer Anwer, Niagara Falls, CA;
Alap Shah, Jersey City, NJ (US);
HEVO, Inc., Brooklyn, NY (US);
Abstract
Foreign objects at a wireless charging station can be detected and deterred by activating a primary coil in a transmitter to generate an electromagnetic field in response to a receiver being positioned within a predetermined distance from the primary coil. The receiver can be coupled to a battery in an electric vehicle for wirelessly receiving power from the transmitter for charging the battery. A voltage induced on a sensor coil in response to a foreign object being positioned within the electromagnetic field can be measured. The sensor coil can include a first spiral and a second spiral. The first spiral being spiraled in a first direction away from the point and the second spiral being spiraled in a second direction away from the point. The foreign object can be determined to be between the transmitter and the receiver based on the voltage.