Patent ID: 8785807

Claim:
A welding electrode comprising: an electrode holder; and an electrode cap removably attached to said electrode holder and having a central longitudinal axis, said electrode cap including: a body having a proximal end and a welding surface spaced apart from said proximal end, wherein said welding surface is substantially smooth and free from any grooves defined therein, and has a first diameter of from about 7 mm to about 10 mm, a first radius of curvature, and a second radius of curvature that is different from said first radius of curvature; and a skirt portion extending away from said body along said central longitudinal axis and configured to bear against said electrode holder to thereby removably attach said electrode cap to said electrode holder; wherein said skirt portion has a first face that is substantially parallel to said central longitudinal axis and spaced apart from said welding surface; wherein said body has a second face interconnecting said first face and said welding surface; wherein said body tapers from said first face to said welding surface along said second face; wherein said welding surface includes a protuberance spaced apart from said second face and having said first radius of curvature, and a shoulder adjoining said protuberance.