Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Publication of BE727885ApublicationCriticalpatent/BE727885A/xx
F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
F28C3/005—Other direct-contact heat-exchange apparatus one heat-exchange medium being a solid
A—HUMAN NECESSITIES
A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
A23B2/00—Preservation of foods or foodstuffs, in general
A23B2/80—Freezing; Subsequent thawing; Cooling
A23B2/85—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals
A23B2/88—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals with direct contact between the food and the chemical, e.g. liquid N2 at cryogenic temperature
F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
F25D9/00—Devices not associated with refrigerating machinery and not covered by groups F25D1/00 - F25D7/00; Combinations of devices covered by two or more of the groups F25D1/00 - F25D7/00
F25D9/005—Devices not associated with refrigerating machinery and not covered by groups F25D1/00 - F25D7/00; Combinations of devices covered by two or more of the groups F25D1/00 - F25D7/00 using fluorinated halogenous hydrocarbons