Rotatable refrigerating disc for ice making apparatus

Details Rotatable refrigerating disc for ice making apparatus Rotatable refrigerating disc for ice making apparatus

1994-08-22

1996-06-04

Tapolcai, William E.

Refrigeration

Means producing shaped or modified congealed product

Heat absorber with product remover

165 94, F25C 512

Patent

active

055222366

ABSTRACT:
Rotatable refrigeration disc is of laminated construction comprising at least two layers bonded together, and has a plurality of relatively narrow internal channels therein arranged in a winding, labyrinth-like, sinuous, zigzag pattern. The channels are sized to accommodate the passage of an evaporative refrigerant, and extend substantially throughout all of the operative portion of the disc so that the liquid freezing surfaces are close to and are chilled by the refrigerant passing through the channels. Each channel has an inlet and outlet located at a central portion of the disc. The channels extend from the center towards the perimeter of the disc and then zigzag back towards the central portion. The layers of one form are complimentary mirror images and in another form are two planar outer layers encasing a layer with channels formed on each side. The channels are formed by etching, or computer controlled machining.

REFERENCES:
patent: 1961660 (1934-06-01), Fehrmann
patent: 3191398 (1965-06-01), Rader
patent: 3863462 (1975-02-01), Treuer

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