Electric cooker with heated rock beds

Claim 1

AN ELECTRIC COOKER FOR COOKING FOOD AFTER SHUT-OFF OF ELECTRICITY, WHICH COOKER INCLUDES: AN INSULATED OVEN; ELECTRICAL RECEPTACLE MEANS DISPOSED AT AN INTERMEDIATE ELEVATION ON THE INTERIOR WALL OF SAID OVEN; ELECTRICAL CONNECTION AND CONTROL MEANS ON THE EXTERIOR OF SAID OVEN FOR CONTROLLING THE ELECTRICITY TO SAID RECEPTACLE; AN ELECTRIC HEATER FOR CONNECTION TO SAID RECEPTACLE, SAID HEATER COMPRISING A GRID OF ELECTRICAL HEATING ELEMENTS DISPOSED IN HORIZONTAL PLANE, GRILL WORK BARS IN THE FORM OF STRIP OF OVERHEAD SHIELDING ABOVE EACH OF THE ELEMENTS OF SAID GRID, AND INSULATING MEANS FOR SUPPORTING SAID ELEMENTS UNDER SAID OVERHEAD SHIELDING STRIPS TO PROTECT SAID ELEMENTS FROM DESCENDING LIQUIDS; AN ELECTRICAL PLUG MEANS INTEGRAL WITH SAID GRILL TO PROVIDE ELECTRIC CONNECTION OF SAID HEATING ELEMENTS TO SAID RECEPTACLE; A SCREEN-BOTTOM TRAY SUPPORTED ABOVE SAID GRILL, AND A BED OF HEAT RESISTANT ROCK SUPPORTED ON SAID SCREENTRAY, SAID BED BEING COMPRISED OF ROCK PARTICLES COARSE ENOUGH NOT TO PASS THROUGH SAID SCREEN, BUT SMALL ENOUGH TO PROVIDE A SUBSTANTIALLY LEVEL LAYER FOR SUPPORT OF COOKING FOOD, SAID LAYER BEING PERVIOUS TO DESCEDING LIQUIDS BUT IMPENETRABLE TO DIRECT RADIATION FROM SAID ELECTRIC GRILL; AN ELECTRICAL CONNECTION HOUSING INTEGRAL WITH SAID SCREEN TRAY FOR SHIELDING SAID ELECTRICAL CONNECTION; AND A DRIP TRAY BELOW SAID ELECTRIC GRILL, SAID DRIP TRAY CONTAINING HEAT IMPERVIOUS ROCKS SUBSTANTIALLY LARGER IN SIZE THAN THE ROCKS COMPRISING SAID LAYER ABOVE SAID GRILL.