Preparation of a bistable ferrite circuit element

Claim 1

A METHOD OF FORMING A HIGH SPEED OPEN FLUX PATH FERRITE MEMORY ELEMENT WHICH COMPRISES THE STEPS OF MIXING 32.2 GRAMS OF MAGNESIUM OXIDE, 38.7 GRAMS OF MANGANESE SESQUIOXIDE AND 135.7 GRAMS OF FERRIC OXIDE, CORRESPONDING TO FORMULA MG8MNFE1.7O4, WET BALL MILLING THE MIXTURE FOR 10 HOURS, OVEN DRYING AT 110* FOR TWO HOURS, CALCINING IN AIR AT 1000* FOR THREE HOURS REPULVERIZING THE MASS TO A FINE POWDER MIXING 40 GRAMS OF PYROXYLIN AND 500 GRAMS OF AMYL ACETATE THEREWITH, BALL MILLING FOR FOUR HOURS POURING ONTO THE GLASS SURFACE COVERED WITH A THIN LAYER OF GELATIN, PLACING ON A SPINING TABLE, SPIN DRYING CUTTING THE RESULTANT THIN SHEET OF FERRITE INTO BARS HAVING A LENGHT OF 0.75 INCH A WIDTH OF 0.12 INCH AND A THICKNESS OF 0.0004 INCH (9 MICRONS), SEPARATING THE BAR FERRITE ELEMENTS FROM THE SUPPORT SURFACE BY DISSOLVING OUT THE GELATIN WITH WARM WATER, PLACING THE INDIVIDUAL ELEMENTS IN A PLANTIUM BOAT LINED WITH ALUMINA, SINTERING AT 1400*C. FOR FIVE MINUTES AND SLOWLY COOLING TO ROOM TEMPERATURE.