Patent ID: 7967643
Filing Date: 2011-06-28
Classification: H01R

Abstract:
1. An electric plug having a coaxially aligned handle, a plug collar at one end of the handle, a shaft projecting from the plug collar and a tip on the shaft, for insertion into a mating jack where the plug collar confronts a front wall of the jack and a spring within the jack engages the tip, said tip having a substantially frustoconical nose defining the front end of the tip and which axially transitions to a convex annular shoulder which axially transitions to a concave annular waist, which axially transitions to an annular base, wherein the improvement comprises that: the annular shoulder is centered at an axial distance of less than 0.120 inch from the front end of the tip; the waist has a radius of curvature greater than about 0.075 inch.