GB630580A - Refrigerated self service display case - Google Patents

Abstract

630,580. Refrigerated show cases. HILL & CO., Inc., C.V. February 24, 1947, No. 5366. Convention date, November 30, 1946. [Class 29] An open-topped refrigerated display case has the refrigerating element 16 and a blower 36 disposed in an air duct, 32. 50 having an inlet 46 below the top of the front wall 20 and an outlet 58 adjacent the opposite wall 4, the refrigerating element being located immediately prior to the outlet opening so that the .coldest air in the cycle-passes across the top of the display space. The front wall of the case comprises multiple glass panes 20 and the rear wall 4 extends above the front wall and has a forwardly projecting portion 8 from which an insulating baffle wall 10 extends downwardly to a level below the top edge 24 of the front wall to form a housing for the evaporator 16, The floor 30 of the display space is spaced from the bottom wall 2 of the case to form the duct 32 from which air is forced by a fan 36 up the rear duct 50 to the evaporator, the cold air passing through an outlet 58 and across the top of the display space to an inlet 46 of a front duct 42 between the glass panes 10 and a glass wall 40 and back to the bottom duct 32. The air having been warmed in passing over the goods does not cause condensation on the glass panes 40, 20. The fan 36 is housed in a raised portion 34 of the floor 30. The goods may be supported on the floor 30 or on a rack 64 supported above the floor. During defrosting the fan 36 is stopped and hot gas or liquid is supplied to the evaporator and to a coil 66 in the drip pan 56, the melt water passing through a drain 68 to an outlet 70 in the bottom of the case. Lamps 26, 76 illuminate the case and a mirror 74 is provided and is prevented from becoming dimmed by a heating element 82. Specification 630,579 is referred to