Electricity: battery or capacitor charging or discharging – Cell or battery charger structure – For battery pack
Reexamination Certificate
2005-12-06
2005-12-06
Tso, Edward H. (Department: 2838)
Electricity: battery or capacitor charging or discharging
Cell or battery charger structure
For battery pack
C429S099000
Reexamination Certificate
active
06972544
ABSTRACT:
A battery pack for a cordless power has a plurality of battery cells disposed in a housing. In an embodiment of the invention, battery cells are interconnected with a laminated plate structure having non-conductive layers interspersed with conductive layers, at least one of the conductive layers connected to the battery cells to interconnect them. In an embodiment of the invention, battery cells in a battery pack are interconnected with a flexible printed circuit board having conductive traces thereon that are attached to the battery cells to interconnect them. In an embodiment of the invention, a cordless power tool has one or the other of the foregoing battery packs. In an embodiment of the invention, the battery cells are Lithium Ion battery cells.
REFERENCES:
patent: 5977746 (1999-11-01), Hershberger et al.
patent: 6399238 (2002-06-01), Oweis et al.
patent: 6455190 (2002-09-01), Inoue et al.
Brotto Daniele C.
Carrier David A.
Phillips Steven J.
Seman, Jr. Andrew E.
Trinh Danh T.
Black & Decker Inc.
Harness & Dickey & Pierce P.L.C.
Tso Edward H.
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