Charge apparatus of an extension cord plug

Details Charge apparatus of an extension cord plug Charge apparatus of an extension cord plug

2007-08-16

2008-09-16

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

Encased in plug housing

Reexamination Certificate

active

07426126

ABSTRACT:
A charge apparatus of an extension cord plug is provided. The charge apparatus is set inside an outlet and connected to an USB interface outside the outlet. When the outlet is electrified, the plug thereon is able to provide power to an electric appliance for normal operation through the USB interface after processing of the charge apparatus. By the time, the user may select demanded voltage to achieve objective of charging by various voltage sources.

REFERENCES:
patent: 3982173 (1976-09-01), Berry et al.
patent: 5661623 (1997-08-01), McDonald et al.
patent: 5894392 (1999-04-01), McDonald
patent: 5900804 (1999-05-01), Yewell
patent: 6476523 (2002-11-01), Lee
patent: 7212420 (2007-05-01), Liao

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