Refrigerated display case having a unitary outlet grid

A refrigerated display case comprising:

• a cabinet with an interior display space for holding refrigerated products, said cabinet having an access opening therein enabling access to the products within said interior display space;
• a primary air conduit encircling said cabinet and having an outlet opening at one end adjacent to said access opening and an inlet opening at its other end adjacent to said access opening and said inlet and outlet openings being aligned so that air leaving said outlet opening is directed across said access opening of said cabinet and received by said inlet opening;
• refrigeration means arranged in said primary air conduit for refrigerating air passing through said primary air conduit;
• means for circulating air through said primary air conduit;
• a secondary air conduit extending along said cabinet and positioned outside of said primary air conduit, said secondary air conduit having an outlet opening for directing air across said access opening of said cabinet and said outlet opening of said secondary air conduit being aligned with and positioned adjacent to said outlet opening of said primary air conduit;
• a unitary grid member extending across said outlet opening of said primary air conduit and said outlet opening of said secondary air conduit, said grid member having a plurality of parallel air outlet channels;
• and,
• thermal insulating means for separating said outlet opening of said primary air conduit and said outlet opening of said secondary air conduit and contacting said unitary grid for thermally isolating said outlet openings for minimizing condensation in the area of the intersection of said outlet opening of said primary air conduit and said outlet opening of said secondary air conduit due to the differential in the temperature of the air emitted from said outlet openings, said insulating means serving to sufficiently minimize condensation for avoiding frost build-up free of the application of heat supplied by using electrical heater wires, said insulating means including an insulating member formed by a sheet metal plate covered on both sides with an insulating material such as a flexible rubber based insulation with the thickness of said insulating material being approximately between 1/8" and 1/4" on each side of said metal plate.