Battery operated extension cord

Details Battery operated extension cord Battery operated extension cord

2007-04-02

2010-02-16

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Cell or battery charger structure

Having plug for a-c receptacle

Reexamination Certificate

active

07663340

ABSTRACT:
A battery operated extension cord that includes a housing, a rechargeable battery pack, a pair of 125-volt alternating current receptacles, a power inverter to convert the voltage direct current from the battery to the required alternating current, a charger, and a plug connected to the charger to allow the charger to be plugged into an existing wall plug unit in order to charge the present invention. The housing is located in a hinged-carrying case, which includes a separate pocket for the battery housing and a cylinder around which the extension cord could be wound.

REFERENCES:
patent: 5077513 (1991-12-01), Dea et al.
patent: 5233230 (1993-08-01), Bonar
patent: D340908 (1993-11-01), Tortola
patent: 5315475 (1994-05-01), Scheidel et al.
patent: 5783927 (1998-07-01), Chen
patent: 6850041 (2005-02-01), Takano
patent: 2003/0164645 (2003-09-01), Crandell, III
patent: 2004/0196000 (2004-10-01), Wei
patent: 2005/0040788 (2005-02-01), Tseng

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