IP Library Granted Patent US 8,373,387
Granted Patent B2
US 8,373,387 · App. 12/849,777 · Granted Feb 12, 2013

USB inductive charger

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Quick Facts
Patent No.
US 8,373,387
App. No.
12/849,777
Granted
Feb 12, 2013
Kind
B2
Abstract

An inductive charger adapter element includes a housing, a coil comprising electrically conductive material, the coil contained within the housing, the coil configured to inductively couple to an external primary coil; and a connector supported on the housing, the connector coupled to the coil and configured to couple the inductive charger adapter element to a port provided on a device, the connector including a first pair of conductors for providing power and charging current to a battery in the device.

Claims (13)

1. An inductive charger adapter element comprising:

a housing,

a coil comprising electrically conductive material, the coil contained within the housing, the coil configured to inductively couple to an external primary coil; and

a connector supported on the housing, the connector coupled to the coil and configured to couple the inductive charger adapter element to a port provided on a device, the connector including a first pair of conductors for providing power and charging current to a battery in the device, a pair of brushes, and a pair of conductive rails over which the connector is configured to move with each of the rails being connected to a circuit via a corresponding one of the brushes wherein the connector is adjusted such that the conductor coil in the housing is within a predetermined distance from the external primary coil.

2. The element of claim 1 further comprising at least a second conductor within the connector, the second conductor configured to transfer data between the inductive charger and the device.

3. The element of claim 1 , further comprising:

the circuit coupled to the coil, the circuit comprising:

a rectifier, and

a voltage converter to convert an input voltage to the circuit to a constant charging voltage.

4. The element of claim 1 , wherein the connector comprises a universal serial bus (USB) plug.

5. The element of claim 4 , wherein the USB plug is one of a mini-USB plug and a micro-USB plug.

6. The element of claim 1 , wherein the coil is one of a flat coil and a spool coil.

7. The element of claim 1 , wherein the predetermined distance is less than about 1 inch.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 26, 2016
From: THE GILLETTE COMPANY
To: DURACELL U.S. OPERATIONS, INC.
Reel/Frame 037931/0489 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 16, 2010
From: BOURILKOV, JORDAN T.; BIEDERMANN, DAVID T.; KLEIN, DAVID N.
To: GILLETTE COMPANY, THE
Reel/Frame 025002/0762 →