Electrocution proof line and extension cord
OwnerFrank Martucciinventor
Life of this patent
Estimating the term…
Abstract
A power line includes a plug having four wire connection sites and a line cord having four conductors each conducted to a respective wire connection site. Two of the sites are connected to the two power conducting blades of the plug and the remaining two wires are connected to a single grounding prong of the plug. An extension cord can be made by attaching a female socket to opposite ends of the wires, the female socket also having four wire connection sites. The plug and line cord can also be connected directly to a device having four wire connection sites.
Claims4
An electrocution-proof line comprising, a plug having a housing with four wire connection sites, a first conductive blade extending from said plug housing and connected to a first one of said sites, a second conductive blade extending from said plug housing and connected to a second one of said sites, a grounding prong extending from said housing and connected to a third and to a fourth one of said sites, and a line cord having four conductive wires, each of said wires being connected respectively to one of said first, second, third and fourth sites, whereby two of said wires of said line cord act as grounding wires to provide a redundant grounding pathway for current.
Dependencies are inferred from the claim text.