Inductive Flashlight Charging System with Concentric Coils

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20090154149A1
SERIAL NO

11957267

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A rechargeable flashlight uses induction for charging, and thus does not utilize external contacts. The flashlight is cylindrically shaped, and has a secondary coil wrapped around a portion of the cylindrical body. The flashlight is placed within a ring shaped charger with a primary coil, such that the primary coil is wrapped around the secondary coil. This greatly maximizes the amount of interfacing area between the two coils, without adversely affecting the reflector design. This allows for the charging of a high powered flashlight, without requiring the flashlight to have a disadvantageously sized or constructed head. Furthermore, the primary coil of the charger can advantageously serve as a mechanical support for the flashlight.

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Patent Owner(s)

Patent OwnerAddress
PENTAGONLIGHT151 MITCHELL AVENUE SOUTH SAN FRANCISCO CA 94080

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
HUANG, John South San Francisco , US 56 870

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