CORDLESS POWER TRANSFER

• US 20090251113A1
• Filed: 04/02/2008
• Published: 10/08/2009
• Est. Priority Date: 04/02/2008
• Status: Active Grant

• Current Assignee: Puthalath Koroth Raghuprasad
• Original Assignee: Puthalath Koroth Raghuprasad
• Inventors: Raghuprasad, Puthalath Koroth
• Granted Patent: US 7,687,941 B2
• Time in Patent Office: Days
• US Class Current: 322/39
• CPC Class Codes: A47J 43/046 with tools driven from the bottom side
• CPC Class Codes: A47J 43/085 for machines with tools driven from the lower side A47J43/087, A47J43/09 take precedence
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02K 49/108 with an axial air gap
• CPC Class Codes: H02P 9/00 Arrangements for controlling electric generators for the purpose of obtaining a desired output Ward-Leonard arrangements H02P7/34; vector control H02P21/00; feeding a network by two or more generators H02J; for charging batteries H02J7/14

Abstract

A system for cordless transfer of power for appliances or electronic devices 30 has a power transferring device 80 with a plurality of magnets 52 driven by a motor 70B powered by commercial electric power devices or lines. The power transferring device 80 is positioned below a table or countertop 20. On the undersurface of each appliance or electronic device 30 are one or more circular rotating magnetic arrangements 52 with opposing (attraction) poles to drive a dynamo 40 or dynamos. When the motor 70B is switched on, the drive axle 72 rotates a support base 82 upon which a plurality of magnets 52 is attached about an axis which correspondingly moves the plurality of magnets 52 in a circular motion creating a rotating magnetic field 50 to turn the dynamo 40 inside the base of the cordless appliance or electronic device 30.

Claims

1. A power transfer system for cordless appliances or electronic devices comprises:

a power transferring device for emitting a rotational magnetic field above the surface of a table or countertop; and

a cordless appliance or electronic device having a base for sitting on a surface of a countertop or table top, the base housing a dynamo for transferring an electric current, the dynamo being driven by the rotating magnetic field.

2. The power transfer system for a cordless appliance or electronic device wherein the power transferring device for powering a cordless appliance or electronic device comprises:

an electric drive motor having a power driven drive axle;

a switch for activating the drive motor;

a rotatable support connected to the drive axle, the rotatable support base having a plurality of magnets positioned about the base;

a housing for holding the motor and rotatable support base and for attaching to the underside of the table or countertop; and

wherein upon switching on the motor the rotatable support base rotates about an axis moving the plurality of magnets in a circular motion creating a rotating magnetic field to interact with corresponding members of the cordless appliance/device.

3. The power transfer system for a cordless appliance or electronic device, the cordless appliance or electronic device comprising;

a base for sitting on a countertop or table;

a plurality of magnets positioned on a rotatable support housing inside the base;

a dynamo for generating electric current housed inside the appliance/device and connected to the rotatable support structure; and

wherein

when the appliance or device is positioned over a rotating magnetic field, the rotatable support structure rotates causing the dynamo to generate an electric current to power the appliance or device.