Prevention of electro-chemical corrosion at charging...

Details Prevention of electro-chemical corrosion at charging... Prevention of electro-chemical corrosion at charging...

2004-04-21

2010-06-08

Assouad, Patrick J (Department: 2858)

Electricity: battery or capacitor charging or discharging

Cell or battery charger structure

For handheld device

C320S108000, C320S112000, C320S113000

Reexamination Certificate

active

07733056

ABSTRACT:
The present invention relates to the prevention of electro-chemical corrosion at charging pins, especially of a battery-powered handpiece and its charging station.

REFERENCES:
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patent: 3851322 (1974-11-01), Compoly et al.
patent: 5233283 (1993-08-01), Kennedy
patent: 5471129 (1995-11-01), Mann
patent: 5793186 (1998-08-01), Watabe et al.
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patent: 5867798 (1999-02-01), Inukai et al.
patent: 5945809 (1999-08-01), Inaba et al.
patent: 2001/0000423 (2001-04-01), Fischer et al.
patent: 2002/0074970 (2002-06-01), Kawashima

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