Refrigeration – Processes – Fractionally solidifying a constituent and separating the same
Patent
1990-01-29
1991-05-07
Tapolcai, William E.
Refrigeration
Processes
Fractionally solidifying a constituent and separating the same
62124, 622385, B01D 904, C02F 122
Patent
active
050133446
ABSTRACT:
The system disclosed in my U.S. Pat. No. 4,897,099 for deriving purified ice pieces and purified water from tap water is modified by providing a metal or thermally conductive heat flow path from an alternative refrigerant condenser to the ice collection bin. In one embodiment the size/shape of the heat flow path provides sufficient heat flow resistance to maintain a temperature gradient thereacross whereby the bottom of the bin is at approximately 32.degree. F. and the condensing rejection temperature is at least 60.degree. F. In another embodiment the alternative condenser is undersized relative to the primary condenser (used in the non-melting mode). In a further embodiment the second condenser is operated in a partially flooded condition during the ice-melting mode to reduce its effective condensing surface area.
REFERENCES:
patent: 1874803 (1932-08-01), Reed
patent: 2818235 (1957-12-01), Baran
patent: 2912230 (1959-11-01), Ratarczak
patent: 3017162 (1962-01-01), Haines et al.
patent: 3513663 (1970-05-01), Martin, Jr. et al.
patent: 4262489 (1981-04-01), Sakamoto
patent: 4941902 (1990-07-01), Ruff
Tapolcai William E.
Thermadyne, Inc.
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