# US 2014/0150666 A1 · Brewing unit with a water heater > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0150666 A1 - Document ID: US20140150666A1 - Status: Published application - Kind: A1 - Application number: 14/131,437 - Filed: 2012-07-04 - Published: 2014-06-05 - Earliest claimed: 2011-07-08 - Assignees: Koninklijke Philips N.V. - Inventors: Giuseppe Fin; Massimo Baldo; Marco Santini - Web page: https://patentgrep.com/patent/US20140150666A1 ## CPC - A47J 31/407: {with ingredient-containing cartridges; Cartridge-perforating means} - A47J 31/3633: {Means to perform transfer from a loading position to an infusing position} - A47J 31/3638: {Means to eject the cartridge after brewing} - A47J 31/3676: {Cartridges being employed} - A47J 31/60: Cleaning devices - A47J 31/542: {Continuous-flow heaters} - A47J: KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES ## Abstract The brewing unit comprises: a brewing chamber comprising at least two brewing chamber portions (215B, 227; 321, 323; 421, 423) movable one with respect to the other; a water heater (207; 315; 403); a hot water duct for feeding hot water from said water heater in said brewing chamber; a beverage dispensing duct (219; 334; 434) from which a beverage is dispensed. The water heater has a cavity (207C; 315E; 403C) through which the beverage dispensing duct extends for connection to an outer beverage dispensing spout (5; 5A). ## Claims ### Claim 1 A brewing unit for the production of a beverage, comprising: a brewing chamber comprising at least two brewing chamber portions movable one with respect to the other; a flow through water heater comprised of an electric resistor and a water heating duct; a hot water feeding duct for feeding hot water from said water heater in said brewing chamber; a beverage dispensing duct from which said beverage is dispensed; wherein said water heater has a body made of heat-conductive material and surrounding a cavity through which said beverage dispensing duct extends for connection to an outer beverage dispensing spout; wherein said body encloses an electric resistor and a water heating duct, such that heat generated by the electric resistor, when powered, heats the water flowing through the water heating duct by heat conduction through the material forming the body. ### Claim 2 (canceled) ### Claim 3 (canceled) ### Claim 4 (depends on 1) Brewing unit according to claim 1, wherein- said electric resistor and/or said water heating duct are wound around said cavity. ### Claim 5 (depends on 1) Brewing unit according to claim 1, wherein said first brewing chamber portion and said second brewing chamber portion are movable between an open position, in which said two brewing chamber portions are distanced from one another for receiving an ingredient-containing package (C) therebetween, and a closed brewing position. ### Claim 6 (depends on 5) Brewing unit according to claim 5, comprising an aperture configured for insertion of ingredient-containing packages (C) between said first brewing chamber portion and said second brewing chamber portion in said open position. ### Claim 7 (depends on 1) Brewing unit according to claim 1, wherein at least one of said brewing chamber portions is in thermal contact with said water heater. ### Claim 8 (depends on 7) Brewing unit according to claim 7, wherein said one of said brewing chamber portions in thermal contact with said water heater comprises a recess for a capsule (C). ### Claim 9 (depends on 5) Brewing unit according to claim 5, wherein said one of said brewing chamber portions in thermal contact with said water heater is at least partly arranged in a seat formed by said body of said water heater. ### Claim 10 (depends on 9) Brewing unit according to claim 9, wherein said seat is connected to said through cavity extending along the body of said water heater. ### Claim 11 (depends on 1) Brewing unit according to claim 1, wherein both said first brewing chamber portion and said second brewing chamber portion are movable with respect to a capsule guide. ### Claim 12 (depends on 11) Brewing unit according to claim 11, wherein said first brewing chamber portion and said second brewing chamber portion are moved by a single control lever. ### Claim 13 (depends on 11) Brewing unit according to claim 11, comprising guiding channels for insertion of a capsule (C) in a brewing position, and retention members to retain said capsule in said brewing position before closing of said brewing chamber. ### Claim 14 (depends on 13) Brewing unit according to claim 13, wherein said retention members are designed and arranged to disengage said capsule (C) when said brewing chamber portions are moved apart to open the brewing chamber after completion of a brewing cycle. ### Claim 15 Brewing unit according to 12, wherein said control lever controls cam profiles which act on said retention members to disengage said capsule from said retention members when the brewing chamber is opened by said control lever. ### Claim 16 (depends on 13) Brewing unit according to claim 13, wherein said guided is arranged such that the capsule falls in said guide by gravity. ### Claim 17 (depends on 1) Brewing unit according to claim 1, wherein said water heater is movable along with one of said first brewing chamber portion and said second brewing chamber portion during closing and opening of the brewing chamber. ### Claim 18 (depends on 17) Brewing unit according to claim 17, wherein said water heater and said brewing chamber portion movable with said water heater are housed in a slidable cover. ### Claim 19 (depends on 1) A beverage preparing machine including a brewing unit according to claim 1.