Plug receiving contact

Claim 1

AN ELECTRICAL CONNECTOR FOR DETACHABLY SECURING TOGETHER ELECTRICAL CONDUCTORS BY FRICTIONAL CONTACT BETWEEN A PIN CONTACT AND A PIN RECEPTACLE COMPRISING IN COMBINATION A BARREL PORTION FOR PRESSURE FORMING ABOUT THE END OF AN ELECTRICAL CONDUCTOR, A PIN RECEPTACLE PORTION INCLUDING A PAIR OF PARALLEL SPAN MEMBERS INTEGRALLY JOINED TOGETHER AT OPPOSITE ENDS OF ONE SIDE, A PAIR OF LOCKING EARS MOUNTED ON THE ENDS OF SAID SPANS ADJACENT THE UNJOINED SIDES THEREOF, A COOPERATING LOCKING SLOT ADAPTED TO RECEIVE THEREIN SAID LOCKING EARS TO SECURELY HOLD THE OTHER SIDE OF SAID SPANS IN PROPER SPACED RELATION, AN INWARDLY CONCAVE CONTACT SURFACE FORMED IN SAID SPANS ADJACENTS THE MID-POINT THEREOF, A NARROW SLOT IN SAID SPANS ON EACH SIDE OF SAID CONTACT SURFACESE, SAID SPANS BEING SPACED APART A DISTANCE SUCH THAT SAID CONTACT SURFACES ARE SPACED LESS THAN THE DIAMETER OF THE PIN TO BE RECEIVED THEREIN AND SAID SURFACES HAVING A RADIUS OF CURVATURE GREATER THAN SAID PINS.