| abstract |
In the manufacture of refrigerator cabinets of the dual compartment type, using vacuum forming techniques to mold an integrally formed double cavity liner, desired communicating fluid passages are formed between compartments, through confronting liner walls of adjacent compartment sections. While the liners are still in a pliable state, small sections of confronting liner walls at locations where passages are desired, are moved, with relation to one another, toward and into abutting engagement. The liners are then allowed to cool, followed by piercing the engaged liner wall sections to form the desired communicating passages. |