Open warmer

Claim 1

IN AN OPEN WARMER FOR FOOD PRODUCTS, THE COMBINATION OF, (1) A CABINET BASE INCLUDING AN OBLONG AND HORIZONTAL TOP WALL HAVING A SIMILARLY SHAPED CENTRAL OPENING, (2) A HORIZONTAL SUB-WALL VERTICALLY SPACED BELOW THE TOP WALL SEALING THE UPPER AND LOWER PARTS OF THE CABINET FROM EACH OTHER, (3) A HORIZONTALLY FLANGED METAL PAN FITING SNUGLY WITHIN THE OPENING AND RESTING UPON THE SUB-WALL, THE HEIGHT OF THE PAN TO THE FLANGE BEING SUCH AS TO LEAVE A SMALL GAP BETWEEN THE FLANGE AND THE TOP WALL, (4) A HORIZONTAL ALUMINUM PLATE SPACED ABOVE THE PAN FLANGES AND EXTENDING SLIGHTLY THEREBEYOND IN BOTH LENGTH AND WIDTH DIRECTIONS, THE PLATE POSSESSING A HEAT RESISTIVE ELECTRICAL INSULATING SURFACE COATING AT LEAST ON ITS UNDERSIDE, (5) A PLURALITY OF PAIRS OF EXTERIORLY ROD-SHAPED ELECTRICAL RESISTIVE METALLIC HEATING ELEMENTS LONGITUDINALLY SECURED TIGHTLY TO THE UNDERSIDE OF SAID PLATE, EACH ELEMENT ELECTRICALLY CONNECTED TO A CONTROLLABLE ELECTRICAL POWER SOURCE, (6) THE CENTRALLY POSITIONED HEATING PAIR OF ELEMENTS PRODUCING GREATER AMOUNTS OF HEAT THAN THE ELEMENTS NEARER THE LONGITUDINAL EDGES OF THE PLATE, (7) THE VOLUME BETWEEN THE PLATE WITH THE SECURED HEATING ELEMENTS AND THE PAN BEING HEAVILY AND THOROUGHLY HEAT-INSULATED WITH INSULATION POSSESSING A SOLIDITY SUFFICIENT TO VERTICALLY FIXEDLY SUPPORT THE HORIZONTAL PAN ABOVE THE FLANGES.