Sectional electrical terminal block

Claim 1

AN ELECTRICAL CONNECTOR ELEMENT CAPABLE OF BEING SELECTIVELY ASSEMBLED WITH LIKE CONNECTOR ELEMENTS TO ESTABLISH A COLLIGATE ELECTRICAL CONNECTOR FOR USE IN DETACHABLY CONNECTING A SERIES OF ELECTRICAL CONDUCTORS TO A TERMINAL STRIP HAVING A CORRESPONDING SERIES OF SPACED TERMINAL MEMBERS ELECTRICALLY INSULATED FROM ONE ANOTHER, SAID CONNECTOR ELEMENT COMPRISING: (A) A BODY OF INSULATING MATERIAL, SAID BODY HAVING OPPOSITE PARALLEL SIDE WALLS AND OPPOSITE ENDS; (B) AN ELECTRICAL CONTACT HAVING A CONDUCTOR RECEIVING PORTION AND A TERMINAL ENGAGING PORTION AND BEING SECURED WITHIN SAID BODY WITH SAID CONDUCTOR RECEIVING PORTION ADJACENT ONE END OF SAID BODY AND SAID TERMINAL ENGAGING PORTION PROJECTING BEYOND THE OPPOSITE END OF SAID BODY; (C) A RENITENT SYNTHETIC RESIN KEY PROJECTING FROM ONE SIDE WALL OF SAID BODY AND EXTENDING ALONG A GIVEN DIRECTION PARALLEL TO SAID SIDE WALL; (D) A RENITENT SYNTHETIC RESIN KEY SLOT WITHIN THE OPPOSITE SIDE WALL OF SAID BODY EXTENDING ALONG A DIRECTION PARALLEL TO SAID GIVEN DIRECTION, SAID KEY SLOT HAVING A CONFIGURATION COMPLEMENTARY TO SAID KEY, THE RELATIVE DIMENSIONS OF SAID KEY AND SAID KEY SLOT