# US 10,871,318 B2 · Ice maker > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,871,318 B2 - Document ID: US10871318B2 - Status: Granted - Kind: B2 - Application number: 16/240,817 - Filed: 2019-01-07 - Published: 2020-07-09 - Granted: 2020-12-22 - Earliest claimed: 2019-01-07 - Applicants: Roni Shafir - Inventors: Roni Shafir - Web page: https://patentgrep.com/patent/US10871318B2 ## CPC - F25B 6/04: arranged in series - F25C 1/24: for refrigerators, e.g. freezing trays - A23B 2/80: Freezing; Subsequent thawing; Cooling - A23B 2/82: Thawing subsequent to freezing - A23G 9/083: {using moulds} - A23G 9/22: Details, component parts or accessories of apparatus insofar as not peculiar to a single one of the preceding groups - A23G 9/228: {Arrangement and mounting of control or safety devices} - A23G 9/28: for portioning or dispensing - F25B 13/00: Compression machines, plants or systems, with reversible cycle (defrosting cycles F25B47/02) - F25B 25/005: {using primary and secondary systems} - F25C 5/10: using hot refrigerant; using fluid heated by refrigerant - F25D 21/006: {with electronic control circuits} - F25D 31/003: {with immersed cooling element} - F25B 2339/047: Water-cooled condensers - F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS - F25C: PRODUCING, WORKING OR HANDLING ICE - A23B: PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES - A23G: COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF - F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B) ## Abstract The disclosure relates to an Ice maker. Specifically, the disclosure relates to an ice maker having a circulating coolant fluid that is separate and distinct from the circulating refrigerant used to control the coolant's temperature in a hot coolant reservoir and a cold coolant reservoir. ## Claims ### Claim 1 A system for freezing or defrosting a liquid comprising: a. at least one of a jacketed mold, sized and configured to contain a liquid to be frozen, the jacketed mold having an inlet and an outlet; b. a cold coolant reservoir in fluid communication with the jacketed mold; c. a hot coolant reservoir, in fluid communication with the jacketed mold; d. a compressor having an inlet and an outlet in fluid communication with at least one of an expansion valve and a capillary tube with the cold coolant reservoir and the hot coolant reservoir; e. a condenser having an inlet and an outlet, in liquid communication with the hot coolant reservoir and an expansion valve; f. at least one of the expansion valve and the capillary tube, having an inlet and an outlet, in fluid communication with the cold coolant reservoir and the condenser; g. a selector valve, in fluid communication with the cold coolant reservoir, the hot coolant reservoir, and the jacketed mold, configure to divert the cold or hot coolant to the jacketed mold; h. a coolant pump, disposed between the selector valve and the jacketed mold inlet; and i. a refrigerant, configured to undergo liquid-gas phase change, wherein the refrigerant and the coolant are separated. ### Claim 2 (depends on 1) The system of claim 1, wherein the cold coolant reservoir comprises a first vat having a heat exchanger in liquid communication with at least one of the expansion valve and the capillary tube, the heat exchanger configured to evaporate the liquid refrigerant. ### Claim 3 (depends on 2) The system of claim 2, wherein the hot coolant reservoir comprises a second vat having a heat exchanger in liquid communication with the condenser and the compressor, the heat exchanger configured to condense the gaseous refrigerant. ### Claim 4 (depends on 1) The system of claim 1, wherein the coolant is glycol. ### Claim 5 (depends on 4) The system of claim 4, wherein the cold coolant reservoir is configured to cool the coolant to a temperature of between about −5° C. and about −25° C. ### Claim 6 (depends on 5) The system of claim 5, wherein the hot coolant reservoir is configured to heat the coolant to a temperature of between about 10° C. and about 50° C. ### Claim 7 (depends on 1) The system of claim 1, wherein the coolant is configured to flow using flexible pipes. ### Claim 8 (depends on 1) The system of claim 1, wherein a container portion of the jacketed mold is configured to produce shaped ice. ### Claim 9 (depends on 1) The system of claim 1, further comprises a computerized control, in communication with the coolant pump, the selector valve, the expansion valve, and an array of sensors. ### Claim 10 (depends on 1) The system of claim 1, wherein the hot coolant reservoir is used to defrost at least one of a refrigerator and a freezer not associated with the jacketed freezer, and/or the jacketed mold.