electric resistance type heater preferably disposed beneath the grill plate for heating the grill plate and sheathed or case within the grill plate and a combination thermo probe and temperature detector with thermostat for supplying power to the electric heater and for engaging a safety lock actuator lever and pin hook which allow the unit to operate application_number US 67087900 A description the indoor grill apparatus shown in fig1 is a grill of the compact horizontal type in accordance with a preferred embodiment of the invention wherein a grill plate is used in connection with a drip pan and supporting base the grill comprises a base 1 having the shape of a frame made of plastic material the base 1 preferably has a plurality of perforations in the bottom surface not shown so as to save on the cost of the plastic material used to form the base 1 the grill apparatus also has a removable metal pan 3 adapted to rest on the inner bottom surface of the base 1 and is positioned within the base by a stamped u201c x u201d shaped embossing 6 in the pan 3 the convex bottom of the embossing 6 is dimensioned to be slightly smaller in respect to a corresponding embossing 7 in the bottom of the base 1 when the drip pan 3 is disposed within the base 1 the convex lower surface of embossing 6 nests within the concave upper surface of embossing 7 in the base 1 at the four end points of embossing 6 there are on the bottom surface four protrusions not shown which engage corresponding cavities 8 formed in the base 1 which further stabilize the position of the.