Printed circuit

Claim 1

A PRINTED CIRCUIT HAVING A FUSE ARRANGEMENT WHICH WILL INTERRUPT CIRCUIT CONTINUITY IN RESPONSE TO BENDING A HOUSING MEANS UPON WHICH THE CIRCUIT IS PRINTED COMPRISING A FRANGIBLE DIELECTRIC COATING WHICH IS COATED ONTO THE SURFACE OF A HOUSING MEANS, WHEREIN SAID FRANGIBLE DIELECTRIC COATING CONSISTS ESSENTIALLY OF (A) AN EPOXY RESIN BINDER MAKING UP BY WEIGHT 20% TO 60% OF SAID FRANGIBLE DIELECTRIC COATING, (B) FINELY DIVIDED MINERAL FILLER WITH BRITTLE CHARACTERISTICS MAING UP BY WEIGHT 30% TO 65% OF SAID FRANGIBLE DIELECTRIC COATING, (C) FINELY DIVIDED POROUS SILICA MAKING UP BY WEIGHT 1% TO 5% OF SAID FRANGIBLE DIELECTRIC COATING, (D) COLORING FILLER MAKING UP BY WEIGHT 2% TO 10% OF SAID FRANGIBLE DIELECTRIC COATING, (E) CATALYST MATERIAL MAKING YP BY WEIGHT 5% TO 6% OF SAID FRANGIBLE DIELECTRIC COATING, SAID FRANGIBLE DIELECTRIC COATING BEING COATED ONTO SAID SURFACE IN A SUFFICIENTLY THIN LAYER AND CURED SO AS TO BREAK IN RESPONSE TO BENDING SAID HOUSING MEANS, AND A PRINTED CIRCUIT PRINTED ONTO THE SURFACE OF SAID FRANGIBLE DIELECTRIC COATING SO THAT IN RESPONSE TO THE BREAKING OF SAID FRANGIBLE DIELECTRIC COATING SAID PRINTED CIRCUIT CONTINUITY IS BROKEN.