REFRIGERATED DISPLAY APPLIANCES Russian patent published in 2018 - IPC A47F3/04 

FIELD: instrument engineering.

SUBSTANCE: ducted shelf for an open-fronted display unit employing air curtains, which includes a duct, extending forwardly or rearwardly through the shelf and communicating at a forward end with a discharge or return opening. Forward end is wider than rearward end. Guide walls divide the duct into a group of pathways disposed successively side-by-side in the widthwise direction. Each pathway has a respective length reflecting a degree of widthwise offset between the rearward end and the forward end of the associated channel. Longer pathway of the group has a greater width in the widthwise direction at rearward and forward ends than a shorter pathway of the group.

EFFECT: use of this invention ensures the easy assembly of a refrigeration apparatus.

29 cl, 19 dwg