Patent ID: 7320553

Claim:
A marker for marking wiring for identification purposes, the marker comprising: a shaft having a reservoir positioned therein, wherein the reservoir contains a marking liquid material; and a nib assembly that is in fluid communication with the reservoir so as to be able to receive the marking liquid material wherein the nib assembly has a distal end with an opening formed therein which extends in to the nib assembly to an inner end wherein the opening defines two lateral arms having inner walls adjacent the opening and wherein the opening is formed such that the inner walls of the two lateral arms in the opening are divergent and form a generally V-shaped opening with a rounded bottom such that conductors having a range circumferences can be positioned within the opening such that the outer surface of the conductors contact the inner walls of the two lateral arms such that the marking liquid material can be applied to the outer surface of the conductor via the inner walls of the two lateral arms.