# US 10,119,739 B2 · Hail producing machine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,119,739 B2 - Document ID: US10119739B2 - Status: Granted - Kind: B2 - Application number: 14/925,462 - Filed: 2015-10-28 - Published: 2017-05-04 - Granted: 2018-11-06 - Earliest claimed: 2015-10-28 - Assignees: Accudyne Systems, Inc. - Applicants: Accudyne Systems, Inc. - Inventors: Tracy Dolan; Steven Cope; Jesse Brown; Kim Ferrara - Web page: https://patentgrep.com/patent/US10119739B2 ## CPC - F25C 1/00: Producing ice (F25C3/00 takes precedence) - F25C 1/06: open or openable at both ends - F25C 5/142: {extrusion of ice crystals} - F25C 5/20: Distributing ice - F28D 7/106: {consisting of two coaxial conduits or modules of two coaxial conduits} - F25C: PRODUCING, WORKING OR HANDLING ICE - F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general) ## Abstract A hail producing machine includes at least one diffuser for mixing water and carbon dioxide. At least one heat exchanger is in flow communication with the diffuser for receiving the mixture. A refrigeration unit freezes the mixture to form an ice rod in the heat exchanger. The ice rod is ejected from the heat exchanger and is converted into hail stones by a molding station downstream from the heat exchanger. ## Claims ### Claim 1 An artificial hail producing machine comprising at least one diffuser for mixing water and CO2, at least one heat exchanger in selective flow communication with said diffuser for receiving a water/CO2 mixture from said diffuser, a refrigeration unit communicating with said heat exchanger for forming an ice rod in said heat exchanger from the water/CO2 mixture, and at least one heated molding system downstream from said heat exchanger for forming artificial hail stones from the ice rod, including at least one air cylinder for selective communication with said heat exchanger for ejecting the ice rod from said heat exchanger, at least one staging tube in selective communication with said at least heat exchanger for receiving the ice rod from said heat exchanger and feeding the ice rod to said molding system, and a freezer for collecting the hail stones formed from the ice rod. ### Claim 2 (depends on 1) The machine of claim 1 wherein there are a plurality of said diffusers and of said heat exchangers and of said air cylinders and of said staging tubes and of said molding systems. ### Claim 3 (depends on 2) The machine of claim 2 wherein a set of at least two but less than all of said diffusers are simultaneously in flow communication with a corresponding set of heat exchangers, said corresponding set of heat exchangers being simultaneously in flow communication with a corresponding set of staging tubes, said air cylinders being in simultaneous communication with said set of heat exchangers, and said molding systems being in simultaneous communication with said set of staging tubes. ### Claim 4 (depends on 3) The machine of claim 3 wherein each of said heat exchangers comprises an inner tube mounted within an outer tube, said plurality of heat exchangers including heat exchangers of at least two different diameters, said set of diffusers being in flow communication with said inner tubes of said set of heat exchangers, the refrigeration unit selectively mounted to said outer tubes of said set of heat exchangers for selectively cooling said inner tubes to create the ice rod and for selectively heating the inner tubes to facilitate ejection of the ice rod. ### Claim 5 (depends on 4) The system of claim 4 wherein said plurality of diffusers comprises eight diffusers, said plurality of heat exchangers comprising seven heat exchangers, said plurality of air cylinders comprising two laterally movable air cylinders for selective connection to two of said heat exchangers, said plurality of staging tubes comprising seven staging tubes, said at least one molding system comprising two laterally movable molding systems, said freezer being mounted on wheels, and a bag mounted in each of said chambers of said freezer. ### Claim 6 (depends on 4) The system of claim 4 including a gravity track extending downwardly from said molding system to the freezer having an open top for depositing the hail stones into the freezer. ### Claim 7 (depends on 6) The machine of claim 6 wherein said molding system comprises a pair of heated hemispherical molds selectively movable toward and away from each other, each of said molds being mounted to a heating block whereby said molds are moved toward each other against the ice rod located between the molds to form the hail stone, and said molds being detachably mounted to said heating blocks to permit different size molds to be used. ### Claim 8 (depends on 6) The machine of claim 6 wherein said freezer has a plurality of longitudinally aligned chambers, said gravity track comprising a plurality of generally aligned pivotable levers with each lever disposed above a respective chamber whereby the hail stones travel down the gravity track to the outermost chamber of said freezer until said outermost chamber is full and said outermost lever is pivoted out of alignment with its adjacent lever so that subsequent hail stones are deposited into an adjacent chamber. ### Claim 9 (depends on 8) The machine of claim 8 wherein said gravity track includes a pair of spaced side rails, each of said levers being pivotally mounted to said side rails, and a bag mounted in each chamber for collecting the hail stones.