Cord connection system

Claim 2

A cord connection system, comprising: a first electrical cord having a male plug at one end thereof; said plug having at least first and second conventional electrical blades projecting forwardly from a forward face of said plug; said plug having a body portion projecting rearwardly from the forward face with an exteriorly projecting thread formed thereon; a second electrical cord having at least a first female electrical receptacle at one end thereof; said first receptacle having conventional electrical blade terminals therein corresponding with said plug blades to form an electrical connection when the blades are inserted in the terminals; said receptacle having a body portion with a flange formed at a forward end thereof projecting radially outwardly therefrom; a locking ring rotatably mounted on the body portion of said receptacle having an interiorly threaded wall adapted to engage said plug thread; said locking ring having an annular lip projecting radially inwardly from a rearward end thereof and adapted to engage said flange to prevent removal of said ring from the forward end of the receptacle body; and an end piece means mounted on the rearward end of said receptacle body for preventing removal of said ring off the rearward end of said receptacle body; said end piece means including means for connecting said end piece to a wall plate of the type having a central opening for receipt of said receptacle body portion therethrough, such that said flange and locking ring are located forwardly of the wall plate and said end piece is located rearwardly of the wall plate.

Claim 3

The cord connection system of claim 1, wherein said means for connecting said end piece to said wall plate includes a plate mounted to the forward end of said end piece, and fastener means for fastening the plate to said wall plate.

Claim 4

The cord connection system of claim 1, wherein said wall plate includes means for fastening the wall plate to a conventional wall outlet box, and wherein said second electrical cord is located within the wall and connected to the receptacle through said wall outlet box.

Claim 5

In combination: a wall plate having a central opening therethrough; means on said wall plate for fastening the wall plate to a conventional wall outlet box; a female electrical receptacle connected to said wall plate and electrically connected to an electrical cord extending within said wall outlet box; said receptacle including a body portion extending through said wall plate opening with a forward face projecting forwardly and outward from said wall plate; said receptacle forward face having conventional electrical blade terminals therein electrically connected to said electrical cord in said junction box; said receptacle body portion having a flange formed at the forward end thereof and projecting radially outwardly therefrom forwardly of said wall plate; a locking ring rotatably mounted on the body portion of receptacle rearwardly of said flange and forwardly of said wall plate, having an interiorly threaded wall; means on said locking ring for preventing removal of the locking ring forwardly past the forward flange of said receptacle body; end piece means mounted on the rearward end of said receptacle body and connected to said wall plate to retain said receptacle in said wall plate opening; and a male electrical plug mounted on one end of an electrical cord, for removable electrical connection with said female electrical receptacle; said plug having a body portion with forward and rearward ends, and a forward face at the forward end of said body portion; said plug having conventional electrical blades projecting forwardly from said forward face and electrically connected to said plug electrical cord, said electrical blades corresponding with said receptacle blade terminals to form an electrical connection when the blades are inserted in the terminals; said plug having an exteriorly projecting thread formed on said body portion, corresponding with the interiorly threaded locking ring and located to engage said locking ring when the plug blades are inserted within the receptacle blade terminals.

Claim 6

In combination: a wall plate having a central opening therethrough; means on said wall plate for fastening the wall plate to a conventional wall outlet box; a female electrical receptacle connected to said wall plate and electrically connected to an electrical cord extending within said wall outlet box; said receptacle including a body portion extending through said wall plate opening with a forward face projecting forwardly and outward from said wall plate; said receptacle forward face having conventional electrical blade terminals therein electrically connected to said electrical cord in said junction box; said receptacle body portion having a flange formed at the forward end thereof and projecting radially outwardly therefrom forwardly of said wall plate; a locking ring rotatably mounted on the body portion of receptacle rearwardly of said flange and forwardly of said wall plate, having an interiorly threaded wall; means on said locking ring for preventing removal of the locking ring forwardly past the forward flange of said receptacle body; end piece means mounted on the rearward end of said receptacle body and connected to said wall plate to retain said receptacle in said wall plate opening; and a male electrical plug mounted on one end of an electrical cord, for removable electrical connection with said female electrical receptacle; said plug having a body portion with forward and rearward ends, and a forward face at the forward end of said body portion; said plug having conventional electrical blades projecting forwardly from said forward face and electrically connected to said plug electrical cord, said electrical blades corresponding with said receptacle blade terminals to form an electrical connection when the blades are inserted in the terminals; said plug having an exteriorly projecting thread formed on said body portion, corresponding with the interiorly threaded locking ring and located to engage said locking ring when the plug blades are inserted within the receptacle blade terminals.

Claim 7

A cord connection system, comprising: a first electrical cord having a male plug at one end thereof; said plug having at least first and second conventional electrical blades projecting forwardly from a forward face of said plug; said plug having a body portion projecting rearwardly from the forward face with an exteriorly projecting thread formed thereon; a second electrical cord having at least a first female electrical receptacle at one end thereof; said first receptacle having conventional electrical blade terminals therein corresponding with said plug blades to form an electrical connection when the blades are inserted in the terminals; said receptacle having a body portion with a flange formed at a forward end thereof projecting radially outwardly therefrom; a locking ring rotatably mounted on the body portion of said receptacle having an interiorly threaded wall adapted to engage said plug thread; said locking ring having an annular lip projecting radially inwardly from a rearward end thereof and adapted to engage said flange to prevent removal of said ring from the forward end of the receptacle body; an end piece means mounted on the rearward end of said receptacle body for preventing removal of said ring off the rearward end of said receptacle body; said first receptacle being mounted in a forward wall of a junction box, and said second cord extending outwardly from said junction box; said junction box forward having an opening therein through which said receptacle body projects, with said locking ring located outside the forward wall and the rearward end piece located within the junction box; at least a second female electrical receptacle electrically connected to said second electrical cord within said junction box; said second receptacle including a body portion extending through an opening in the forward face of said junction box, adjacent and spaced-apart from said first receptacle; said second receptacle having a locking ring rotatably mounted thereon with an interiorly threaded wall adapted to engage said plug thread; and an end piece means mounted on the rearward end of said second receptacle body for connecting said receptacle body to said junction box forward wall.

Claim 8

A cord connection system, comprising: a first electrical cord having a male plug at one end thereof; said plug having at least first and second conventional electrical blades projecting forwardly from a forward face of said plug; said plug having a body portion projecting rearwardly from the forward face with an exteriorly projecting thread formed thereon; a second electrical cord having at least a first female electrical receptacle at one end thereof; said first receptacle having conventional electrical blade terminals therein corresponding with said plug blades to form an electrical connection when the blades are inserted in the terminals; said receptacle having a body portion with a flange formed at a forward end thereof projecting radially outwardly therefrom; a locking ring rotatably mounted on the body portion of said receptacle having an interiorly threaded wall adapted to engage said plug thread; said locking ring having an annular lip projecting radially inwardly from a rearward end thereof and adapted to engage said flange to prevent removal of said ring from the forward end of the receptacle body; an end piece means mounted on the rearward end of said receptacle body for preventing removal of said ring off the rearward end of said receptacle body; said first receptacle being mounted in a forward wall of a junction box, and said second cord extending outwardly from said junction box; said junction box forward having an opening therein through which said receptacle body projects, with said locking ring located outside the forward wall and the rearward end piece located within the junction box; at least a second female electrical receptacle electrically connected to said second electrical cord within said junction box; said second receptacle including a body portion extending through an opening in the forward face of said junction box, adjacent and spaced-apart from said first receptacle; said second receptacle having a locking ring rotatably mounted thereon with an interiorly threaded wall adapted to engage said plug thread; and an end piece means mounted on the rearward end of said second receptacle body for connecting said receptacle body to said junction box forward wall.