Safety plug for a female welding lead connector

1. A safety plug apparatus for use with a female welding lead connector, the safety plug apparatus comprising:

a cap member having a first side and a closed second side opposite and spaced apart from the first side; and

a male head member attached to and extending orthogonally from the first side of the cap member wherein the male head member includes:

a male head member proximal end where the male head member is attached to the cap member;

a male head member distal end;

an annular channel around the male head member located proximate to the male head member distal end; and

an annular ring along the male head member distal end, the annular ring including a flat edge along a portion of the annular ring;

wherein the male head member is configured to be inserted into a female welding lead connector, rotated inside the female welding lead connector, and secured in place inside the female welding lead connector, and wherein the cap and the male head member comprise a unitary apparatus made of a nonconductive material.

2. The safety plug apparatus of claim 1 further comprising:

a collar configured to fit tightly around an outer surface of a female welding lead connector; and

a tether attached to and extending from the collar to the cap member wherein the tether is attached to the cap member.

3. The safety plug apparatus if claim 2 wherein the cap, the male head member, the tether, and the collar comprise a unitary apparatus made of plastic.

4. The safety plug apparatus if claim 2 wherein the cap member further comprises an outer rim comprising a plurality of raised ridges to facilitate the twisting the member cap when the male head member is inserted into a female welding lead connector.

5. A kit of a plurality of safety plug apparatuses, each identical to the safety plug apparatus of claim 1 , the kit comprising:

a first safety plug apparatus of a first color;

a second safety plug apparatus of a second color; and

a third safety plug apparatus of a third color.

6. A method of securing a safety plug apparatus of claim 1 to a female welding lead connector, the method comprising:

inserting the male head member of the safety plug apparatus into a receptacle of a female welding lead connector; and

twisting the safety plug apparatus relative to the female welding lead connector to secure the safety plug apparatus to the female welding lead connector.

7. A safety plug apparatus for use with a female welding lead connector, the safety plug apparatus comprising:

a cap member;

a male head member attached to and extending orthogonally from the cap member wherein the male head member includes:

a male head member proximal end where the male head member is attached to the cap member;

a male head member distal end;

a protrusion extending out laterally from the male head member along an outer surface of the male head member;

a collar configured to fit tightly around an outer surface of a female welding lead connector, wherein the collar includes a collar indicator disposed along the collar to indicate the relative rotational position of the male head member; and

a tether attached to and extending from the collar to the cap member, wherein the tether is attached to the cap member, and

wherein the male head member is configured to be inserted into a female welding lead connector, rotated inside a female welding lead connector, and secured in place inside a female welding lead connector.

8. The safety plug apparatus if claim 7 wherein the cap, the male head member, the tether, and the collar comprise a unitary apparatus made of plastic.

9. The safety plug apparatus if claim 7 wherein the cap member further comprises an outer rim comprising a plurality of raised ridges to facilitate the twisting the member cap when the male head member is inserted into a female welding lead connector.

10. A kit of a plurality of safety plug apparatuses, each identical to the safety plug apparatus of claim 7 , the kit comprising:

a first safety plug apparatus of a first color;

a second safety plug apparatus of a second color; and

a third safety plug apparatus of a third color.

11. A method of securing a safety plug apparatus of claim 7 to a female welding lead connector, the method comprising:

inserting the male head member of the safety plug apparatus into a receptacle of a female welding lead connector; and

twisting the safety plug apparatus relative to the female welding lead connector to secure the safety plug apparatus to the female welding lead connector.