# US 10,369,532 B2 · Gas-dissolving device and gas-dissolving method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,369,532 B2 - Document ID: US10369532B2 - Status: Granted - Kind: B2 - Application number: 15/028,525 - Filed: 2015-05-26 - Published: 2017-03-09 - Granted: 2019-08-06 - Earliest claimed: 2014-05-27 - Assignees: Hikarimirai Co., Ltd. - Applicants: Hikarimirai Co., Ltd. - Inventors: Yuta Mizutani; Bunshi Cho - Web page: https://patentgrep.com/patent/US10369532B2 ## CPC - B01F 23/2323: {by circulating the flow in guiding constructions or conduits} - B01F 23/2362: {for aerating or carbonating within receptacles or tanks, e.g. distribution machines (B01F23/2361 takes precedence)} - B01F 23/2363: {Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means} - B01F 23/808: {Filtering the mixture} - B01F 25/53: in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced - C02F 1/46104: {Devices therefor; Their operating or servicing} - C02F 1/4618: {for producing "ionised" acidic or basic water} - C02F 1/685: {Devices for dosing the additives} - C02F 9/00: Multistage treatment of water, waste water or sewage - A23L 2/54: Mixing with gases - A23V 2002/00: Food compositions, function of food ingredients or processes for food or foodstuffs - B01F 23/23764: {Hydrogen} - B01F 2101/14: Mixing of ingredients for non-alcoholic beverages; Dissolving sugar in water - C02F 1/003: {using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices (C02F9/20 takes precedence)} - C02F 1/283: {using coal, charred products, or inorganic mixtures containing them} - C02F 1/42: by ion-exchange (ion-exchange in general B01J) - C02F 1/444: {by ultrafiltration or microfiltration} - C02F 1/68: by addition of specified substances, e.g. trace elements, for ameliorating potable water (medicinal water A61K) - C02F 2001/4619: {only cathodic or alkaline water, e.g. for reducing} - C02F 2209/03: Pressure - C02F 2301/022: Laminar - C02F 2307/10: as part of a potable water dispenser, e.g. for use in homes or offices - Y02E 60/32: Hydrogen storage - B01F: MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING (mixing paints B44D3/06) - C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes) - A23L: FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF (preservation thereof A23B) - A23V: INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract Provided is a gas dissolving device capable of dissolving gas in a liquid in a supersaturated state and maintaining such a saturated state in a stable manner, and being easily attached to a water server or the like. The gas dissolving device generates hydrogen water by dissolving hydrogen in water, and discharges the hydrogen water from an outlet. The gas dissolving device includes a dissolving chamber that stores under pressure generated hydrogen water introduced therein, and pressure reduction and transfer means for preventing pressure variation in a tube-shaped passage that connects the dissolving tank and the outlet due to an action of discharging the hydrogen water from the outlet, and for forming a laminar flow. ## Claims ### Claim 1 A gas dissolving device attachable to a water tank, comprising: a chamber, a tube, and a diaphragm pump that, when attached to the water tank, suctions water from the water tank, imparts the water with hydrogen as hydrogen bubbles to generate hydrogen water, supplies the water, the hydrogen bubbles, and the hydrogen water to the chamber under a pressure of Y MPa, said chamber having an inlet, an upper portion in which hydrogen separated from the hydrogen water accumulates, and a lower portion having the tube connected thereto, said tube having an inside diameter of X mm, an outlet, and a pressure adjusting unit near the outlet, and the value of X/Y is 1.00 to 12.00, and wherein the hydrogen water is discharged from the lower portion of the chamber through the tube by laminar flow and thereby pressure variation in the chamber is prevented and the hydrogen water is maintained in a saturated state in the chamber. ### Claim 2 (depends on 1) The gas dissolving device according to claim 1, wherein an average size of the hydrogen bubbles decreases over time in a circulation path between the chamber and the diaphragm pump. ### Claim 3 (depends on 2) The gas dissolving device according to claim 2, and further comprising a proton exchange membrane (PEM) system, wherein the proton exchange membrane (PEM) system produces hydrogen by electrolysis across a proton exchange membrane (PEM), and introduces a portion of the hydrogen water stored in the chamber to the proton exchange membrane (PEM) system for electrolysis. ### Claim 4 (depends on 3) The gas dissolving device according to claim 3, wherein the chamber comprises a filter. ### Claim 5 (depends on 1) The gas dissolving device according to claim 1, wherein the hydrogen water is discharged from the outlet of the tube. ### Claim 6 (depends on 1) The gas dissolving device according to claim 1, wherein the tube has a diameter of 1-3 mm. ### Claim 7 (depends on 1) The gas dissolving device according to claim 1, wherein the tube has a length of 1.4 to 3.0 m. ### Claim 8 (depends on 1) The gas dissolving device according to claim 1, wherein the pressure 0.20 MPa to 0.60 MPa. ### Claim 9 A gas dissolving device attachable to a water tank, comprising: a chamber, a tube, and a diaphragm pump that, when attached to the water tank, suctions water from the water tank, imparts the water with hydrogen as hydrogen bubbles to generate hydrogen water, supplies the water, the hydrogen bubbles, and the hydrogen water to the chamber under a pressure, said chamber having an inlet, an upper portion in which hydrogen separated from the hydrogen water accumulates, and a lower portion having the tube connected thereto, said tube having an inside diameter of 1-3 mm, an outlet, and a pressure adjusting unit near the outlet, wherein the hydrogen water is discharged from the lower portion of the chamber through the tube by laminar flow and thereby pressure variation in the chamber is prevented and the hydrogen water is maintained in a saturated state in the chamber. ### Claim 10 (depends on 9) The gas dissolving device according to claim 9, wherein the tube has a length of 1.4 to 3.0 m.