Abstract: An air conditioning or heating refrigerator assembly, preferably for use in institutional kitchens. The refrigerator assembly includes a refrigerator unit having a cooling/heating coil subassembly mounted thereon, a blower subassembly mounted thereon downstream of said cooling/heating coil subassembly, and an air discharge chamber mounted on the top thereof. The cooling/heating coil and blower subassemblies are in air transport communication with each other, the blower subassembly being adapted to draw ambient air into the cooling coil subassembly and into contact with the cooling/heating coil, and to blow the cooled or heated air through an air discharge chamber into the atmosphere adjacent the refrigerator. In the air conditioning mode, the cooling/heating coils of the cooling coil subassembly are in communication with a condenser which supplies liquid refrigerant to the coils and condenses refrigerant vaporized in the coils.

Abstract: An inner cooled compartment for receiving articles to be preserved has a vacuum environment in it for the prolonged preservation of articles. Door closures for the compartment is associated with vacuum release valves to allow the closures to open. The inner compartment to be subject to vacuum may comprise a refrigerator area of a conventional household refrigerator or the freezer compartment thereof, or both. The vacuum storage hereof also has particular application to the vegetable tray compartment of a refrigerator and may contain a self-contained vacuum producing flexible container. The vacuum pump may be combined with the refrigerator operating structure or may be a separate outside mounted unit connected by a conduit into the compartments.

Abstract: An air-conditioning refrigerator comprising an air-conditioning unit structured within the confines of a refrigerator, with the cooling coil and blower of the air conditioner located within a housing attached to the inside of the freezer compartment door, with air flow through apertures in that door; the motor-compressor unit located beneath the refrigeration compartment; and a water-cooled condensor unit located on the back surface of the refrigerator. Freon lines and condensate discharge tubing may enter and leave the housing through apertures formed at rotational axes of freezer and refrigerator door hinges.