Circuit boards

Claim 1

IN A SOLDERLESS CIRCUIT BOARD FOR USE WITH ELECTRICAL COMPONENTS HAVING LEADS, AN INSULATING PANEL, CONDUCTORS FORMED IN THE SHAPE OF A PREDETERMINED ELECTRICAL CIRCUIT, MEANS BONDING SAID CONDUCTORS TO SAID INSULATING PANEL WHEREBY SAID CONDUCTORS ARE SUPPORTED BY SAID INSULATING PANEL AND SAID CONDUCTORS AND INSULATING PANEL FORM AN INTEGRAL UNIT, A PLURALITY OF CONDUCTORS FORMING SAID PREDETERMINED CIRCUIT INCLUDING PORTIOSN ON SAID CONDUCTORS FOR CONNECTION OF ELECTRICAL COMPONENTS, OPENINGS IN SAID INSULATING PANEL LARGER IN SIZE THAN SAID LEADS, SAID OPENINGS BEING ARRANGED AT SAID PORTIONS OF SAID CONDUCTORS, SAID PORTIONS OF SAID CONDUCTORS BEING EXPOSED BY SAID OPENINGS IN A PLANE TRANSVERSE TO SAID OPENINGS, SAID EXPOSED PORTIONS OF SAID CONDUCTORS CONSTITUTING MEANS TO ATTACH AND ELECTRICALLY CONNECT A LEAD TO SAID CONDUCTORS WITHOUT USE OF SOLDER, EACH OF SAID MEANS COMPRISING A CENTRAL OPENING IN SAID EXPOSED PORTION OF SAID CONDUCTOR SMALLER IN SIZE THAN THE SIZE OF SAID LEADS, RADIAL SLOTS IN SAID EXPOSED PORTION OF SAID CONDUCTOR, AND A PLURALITY OF FINGER PORTIONS BETWEEN AND ADJACENT SAID SLOTS, SAID FINGER PORTIONS BEING RESILIENT AND HAVING POINTED EDGES ADJACENT SAID CENTRAL OPENING, SAID EDGES BEING DISPOSED BETWEEN SAID SLOTS AND BEING SPACED ABOUT THE PERIPHERY OF SAID CENTRAL OPENING, SAID LEADS BEING FORCED INTO LOCKING POSITION BY PUSHING SAID LEADS IN ONE DIRECTION INTO AND THROUGH SAID CENTRAL OPENINGS, SAID EDGES BEING ADAPTED TO DIRECTLY ENGAGE SPACED AREAS OF A LEAD, SAID LEADS BEING SECURELY GRIPPED AND HELD BY LOCKING ENGAGEMENT OF THE LEADS WITH SAID EDGES OF SAID RESILIENT FINGER PORTIONS TO ATTACH AND ELECTRICALLY CONNECT THE LEADS TO SAID CONDUCTORS WITHOUT SOLDERING, AND SAID FINGER PORTIONS BEING BENT DOWN FROM THE PLANE OF SAID CONDUCTORS IN LEAD GRIPPING POSITION SO THAT SAID LEADS ARE LOCKED AGAINST WITHDRAWAL IN THE OPPOSITE DIRECTION.