Electric appliance/extension cord assembly with...

Details Electric appliance/extension cord assembly with... Electric appliance/extension cord assembly with...

2007-03-06

2007-03-06

Le, Thanh-Tam (Department: 2839)

Electrical connectors

With insulation other than conductor sheath

Plural-contact coupling part

C174S350000

Reexamination Certificate

active

11307479

ABSTRACT:
An electric appliance/extension cord assembly includes an electric appliance and an extension cord. The electric appliance includes a body having a plug with three prongs. The body further c includes a housing and a shielding conductive layer in the housing. The shielding conductive layer is electrically connected to a grounding prong of the plug of the electric appliance. The extension cord includes a casing and a plug. The casing includes a plurality of three-slot sockets. The plug of the extension cord is coupled with a two-slot socket. The plug of the electric appliance is coupled with one of the three-slot sockets of the extension cord. The extension cord further includes a detecting circuit for detecting a hot wire and a neutral wire of the two-slot socket.

REFERENCES:
patent: 5708554 (1998-01-01), Liner
patent: 6538421 (2003-03-01), Carpenter
patent: 6666712 (2003-12-01), Kramer
patent: 6844494 (2005-01-01), Nevins
patent: 6940015 (2005-09-01), Fang
patent: 7154402 (2006-12-01), Dayoub

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