Circuit connectors providing improved electrical contact and mechanical retention

Claim 1

AN ELECTRICAL CONNECTION SOCKET TERMINAL DEVICE FOR INSERTION INTO CIRCUIT BOARDS COMPRISING: A GENERALLY CYLINDRICAL UPPER PORTION OF PREDETERMINED DIAMETER HAVING A CENTRAL RECEIVING BORE THEREIN; A LOWER SOCKET PORTION IN AXIAL ALIGNMENT WITH SAID GENERALLY CYLINDRICAL UPPER PORTION, SAID LOWER PORTION BEING SMALLER IN DIAMETER THAN SAID UPPER PORTION AND HAVING THEREIN A BORE OF REDUCED DIAMETER WITH RESPECT TO SAID CENTRAL RECEIVING BORE, SAID BORE OF REDUCED DIAMETER IN SAID LOWER PORTION CONTINUING FROM AND BEING IN COMMUNICATION WITH SAID CENTRAL RECEIVING BORE, THE OUTER DIAMETER OF SAID LOWER PORTION HAVING A ROLLED-IN GROOVE THEREIN NEAR THE LOWERMOST END THEREOF; A STOPPING FLANGE EXTENDING FROM THE LOWER END OF SAID UPPER PORTION AND THE UPPER END OF SAID LOWER PORTION ABOUT THE OUTER DIAMETER OF SAID SOCKET TERMINAL DEVICE FOR LIMITING THE DEPTH TO WHICH SAID DEVICE MAY BE INSERTED INTO CIRCUIT BOARDS; AND SAID LOWERMOST END BEING SLOTTED AXIALLY THROUGH SAID ROLLED-IN GROOVE TO FORM A BIFURCATED GRIPPING TIP IN SAID LOWER SOCKET PORTION WITH SAID ROLLED-IN GROOVE THEREAROUND FORMING A DOUGHNUT-SHAPED INTRUSION INTO SAID BORE OF REDUCED DIAMETER, THE DISCONTINUITIES OF SAID INTRUSION DUE TO THE BIFURCATION THEREOF FORMING GRIPPING EDGES SO THAT WHEN SAID DEVICE IS IN A CIRCUIT AND AN ELECTRICAL CIRCUIT CONNECTION PIN OR WIRE END IS INSERTED THROUGH SAID RECEIVING BORE INTO SAID BORE OF REDUCED DIAMETER, SAID INTRUSION DISCONTINUITIES MAKE A BINDING TIGHT ELECTRICAL CONTACT WITH SAID PIN OR SAID WIRE END.