Charging a portable electrical device

Details Charging a portable electrical device Charging a portable electrical device

2010-05-03

2010-11-23

Vu, Bao Q (Department: 2838)

Electricity: battery or capacitor charging or discharging

Cell or battery charger structure

For handheld device

Reexamination Certificate

active

07839120

ABSTRACT:
A portable electrical device requiring periodic recharging mates with a corresponding charging device by dropping or placing the portable device on or in the charger without pre-alignment by the user. The charger-to-device interface self aligns the portable electrical device in the charger for charging. Preferably, the charger is a bowl-shaped cradle. The portable device sinks to the bottom of the bowl using the force of gravity and thus aligns the contacts for recharging. Optional magnets may provide additional force to guide alignment.

REFERENCES:
patent: 3840795 (1974-10-01), Roszyk et al.
patent: 7026789 (2006-04-01), Bozzone et al.
patent: 7477039 (2009-01-01), Rodarte
patent: 7710071 (2010-05-01), Elizalde Rodarte
patent: 2003/0146735 (2003-08-01), Barbeau et al.
patent: 2005/0127850 (2005-06-01), Baarman et al.

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