Battery-powered electrical device having a detachable...

Details Battery-powered electrical device having a detachable... Battery-powered electrical device having a detachable...

2007-01-09

2007-01-09

Tso, Edward H. (Department: 2838)

Electricity: battery or capacitor charging or discharging

Cell or battery charger structure

For battery pack

Reexamination Certificate

active

10488862

ABSTRACT:
The battery pack used for the battery powered electrical device of the present invention comprises a case for accommodating at least two battery modules, a switching means provided on a side of the case, and an output terminal formed on the case. The switching means selectively closes and opens a series electrical connection of the at least two battery modules. The switching means cooperates with an actuator, which is provided on a side of a device's main body holding the battery pack detachably, to establish the series electrical connection when the case is attached to the device's main body, and to interrupt the series electrical connection when the case is detached from the device's main body.

REFERENCES:
patent: 06-310114 (1994-11-01), None
patent: 07-107660 (1995-04-01), None
patent: 07-245096 (1995-09-01), None
patent: 09-106793 (1997-04-01), None
International Search Report for PCT/JP03/05155 mailed on Sep. 16, 2003.

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