Abstract: An efficient refrigeration system for mounting on the wall of a food storage structure, includes cooling coils and heat exchange vanes, and a lower inlet and an upper outlet. A centrifugal fan and motor are removably mounted as a sub-unit on mating tracks, on the sub-unit and the housing, and are held in place by quick release arrangements, for ease in repair and/or replacement of the sub-unit. An expansion valve for the refrigeration system is mounted near the inlet. An additional fan for cooling the electric motor forms part of the sub-unit.

Abstract: A thin food heating unit suitable for use as a restaurant griddle includes a silicone rubber heating blanket vulcanized to the underside of a highly thermally conductive metal food warming plate for heating a food item placed thereon, a base insulated from the heating blanket and the food warming plate by a high temperature ceramic fiber insulation, insulating standoffs between the food warming plate and the top of the base, a separate power supply which supplies electrical energy to the griddle at a relatively low voltage compared to standard line voltage, and a power controller including an on/off switch which is separate from the base and which can be mounted separately in a restaurant installation.

Abstract: A food service assembly for heating and maintaining trays of food hot while food can be served therefrom has a well for holding the tray or trays of food, the well including side walls of stainless steel, a relatively thick bottom plate made of a highly thermally conductive material such as aluminum for spreading heat out within the well, a resistive heating blanket affixed to the underside of the base plate for heating the base plate, the heating blanket covering most of the underside of the base plate, a layer of high temperature insulation such as ceramic fiber mat underneath the heating blanket and within the side walls, and a layer of insulating material such as phenolic sheet material insulating the side walls from the top surface of the assembly near the well.

Abstract: A thin food heating unit suitable for use as a restaurant griddle includes a silicone rubber heating blanket vulcanized to the underside of a highly thermally conductive metal food warming plate for heating a food item placed thereon, a base insulated from the heating blanket and the food warming plate by a high temperature ceramic fiber insulation, insulating standoffs between the food warming plate and the top of the base, a separate power supply which supplies electrical energy to the griddle at a relatively low voltage compared to standard line voltage, and a power controller including an on/off switch which is separate from the base and which can be mounted separately in a restaurant installation.

Abstract: A collar assembly including cooling coils is provided to increase the top surface cooling of food being served from food pans which are mounted to extend down into a food service cabinet or counter. The collar is preferably lower in the front toward the server or may be omitted for easy access, and is preferably higher at the back away from the server and on the sides for increased cooling. A principal cooling unit may be mounted in the cabinet to direct cold air onto the food pans; and the collar cooling coils and the principal cooling unit may be coupled to a single compressor and heat exchanger.