Electrical socket devices, and electrical test couplings including plug and socket devices

Claim 1

AN ELECTRIC SOCKET DEVICE COMPRISING A FIXED PORTION HAVING A FIRST BODY OF INSULATING MATERIAL DEFINING A CENTRAL BORE WITH A RECESS IN ONE END THEREOF A SPRING AT LEAST PARTIALLY LOCATED IN SAID RECESS AND A PLURALITY OF FIRST SOCKETS ENBEDED IN SAID INSULATING MATERIAL ADJACENT THE OTHER END THEREOF, A MOVABLE PORTION COMPRISING A SECOND BODY OF INSULATING MATERIAL, A SPIGOT SECURED TO SAID SECOND BODY OF INSULATING MATERIAL EXTENDING THROUGH THE CENTRAL BORE IN SAID FIRST BODY OF INSULATING MATERIAL AND ABUTTING SAID SPRING WHEREBY SAID MOVABLE PORTION IS MOVABLE TOWARDS SAID FIXED PORTION IN RESPONSE TO PRESSURE APPLIED TO SAID SECOND BODY OF INSULATING MATERIAL EFFECTIVE TO CAUSE AXIAL MOVEMENT OF SAID SPIGOT IN ONE DIRECTION TO COMPRESS SAID SPRING, AND IS MOVABLE AWAY FROM SAID FIXED PORTION IN RESPONSE TO THE RELEASE OF SAID PRESSURE EFFECTIVE TO CAUSE THE RESTORING FORCE OF SAID SPRING TO MOVE SAID SPIGOT AXIALLY IN THE OPPOSITE DIRECTION, A LIKE PLURALITY OF CONTACT MEMBERS EMBEDDED IN SAID SECOND BODY OF INSULATING MATERIAL, EACH OF SAID CONTACT MEMBERS COMPRISING A PIN FOR ENGAGING WITH AND DISENGAGING FROM A CORRESPONDING FIRST SOCKET IN SAID FIXED PORTION IN RESPONSE TO THE SAID MOVEMENT OF THE MOVABLE PORTION AND A SECOND SOCKET CONTIGUOUS WITH SAID PIN, SAID SECOND BODY OF INSULATING MATERIAL HAVING A LIKE PLURALITY OF CAVITIES THEREIN EACH HAVING A CLOSED BOTTOM END FROM WHICH EXTENDS A CORRESPONDING ONE OF SAID SECOND SOCKETS, AND A MOUTH, THE EXPOSED ENDS OF SAID SECOND SOCKETS REMOTE FROM SAID PINS LYING SUBSTANTIALLY BELOW THE MONTHS OF SAID CAVITIES AND THE AREA OF SAID MOUTHS BEING ONLY SLIGHTLY GREATER THAN THE CROSSSECTIONAL AREA OF SAID SECOND SOCKETS DISPOSED THEREIN.