Patent ID: 6857277
Filing Date: 2005-02-22
Classification: F25C,Y02P

Abstract:
1. A process for manufacturing clear, solid ice, comprising the steps of: a) preparing a mold, which comprises an upper mold made of an insulating material and provided with a vertical injection hole drilled therein and a water-jet nozzle fitted in the hole; and a lower mold made of a water-freezing block having coolant pipe embedded therein; b) preparing for a lid made of an insulating sheet, said lid having a shape that fits in with a surface shaped for the upper mold and being provided with a bottom flange and a cylinder for being fitted into the vertical injection hole; and a cup of a same insulating sheet, which similarly fits in with a shaped surface of the lower mold and is provided with a top flange; c) assembling the upper mold and the lower mold of the mold after the lid and the cup have been attached tightly to each other to form a container and placed in the mold; d) then, keeping liquid to be frozen cooled at a predetermined temperature and spraying the liquid intermittently in a direction of a water-freezing block that has been cooled to a predetermined freezing temperature; e) repeating a spraying operation to freeze the sprayed liquid in the container, layer by layer, until clear ice is formed; and f) disassembling the mold under an ice-releasing effect, which the container has on the mold, and immediately taking out the ice.