Abstract: An extrusion head for additive manufacturing includes an enclosure defining a supply chamber. The enclosure includes at least one inlet port opening into the supply chamber and configured to receive a material to be extruded under pressure and a plurality of extrusion nozzles. Each nozzle is in communication with the supply chamber and opens onto the exterior of the enclosure via an outlet orifice. The nozzles of the plurality of nozzles are arranged adjacent to one another with a determined spacing between each nozzle outlet orifice.

Abstract: An extrusion head for additive manufacturing includes an enclosure defining a supply chamber. The enclosure includes at least one inlet port opening into the supply chamber and configured to receive a material to be extruded under pressure and a plurality of extrusion nozzles. Each nozzle is in communication with the supply chamber and opens onto the exterior of the enclosure via an outlet orifice. The nozzles of the plurality of nozzles are arranged adjacent to one another with a determined spacing between each nozzle outlet orifice.

Abstract: The sealing arrangement includes a connecting device and one or more housing parts of a housing unit for enclosing of a component, typically an attachment component forming a head of the connecting device. The gas permeable end formed in such component can be isolated, so that the sealing arrangement is adapted for use in detecting a detectable gas in a hermetically sealed detection chamber. Thanks to a sealing structure configured at a passageway for the fastening of the connecting device, a housing unit is obtained with a tight radial contact around an intermediate portion of the connecting device. The device is fitted with a flexible hose end, preferably at a barbed nozzle forming the end at the opposite from the gas permeable end. With such arrangement, the hose mounting can be tested for its integrity.

Abstract: A device for heating milk includes a body (2) having: a steam injecting conduit and a milk conduit emerging into a suction chamber; and a heating chamber (4) extending from an outlet of the suction chamber to an outlet (7) through which the heated milk can flow outside said body (2). The heating chamber (4) includes a globally helical inner conduit (40). A coffee machine including such a device is also disclosed.

Abstract: The inventive coffee machine is provided with a housing (2) including a coffee output (9, 10), a steam generator and a steam output nozzle (20) which is movable with respect to the housing and is provided with a free end (22) immersible into a cup. The free end is introducible into a space under the coffee output (9, 10) and is translationally displaceable between an elevated position in which the free end (22) is placed at least substantially at the level of the coffee output (9, 10) and a lower position in which the free end (22) is immersible into a cup which is positioned in such a way that it receives espresso coffee.

Abstract: The inventive coffee machine is provided with a housing (2) including a coffee output (9, 10), a steam generator and a steam output nozzle (20) which is movable with respect to the housing and is provided with a free end (22) immersible into a cup. The free end is introducible into a space under the coffee output (9, 10) and is translationally displaceable between an elevated position in which the free end (22) is placed at least substantially at the level of the coffee output (9, 10) and a lower position in which the free end (22) is immersible into a cup which is positioned in such a way that it receives espresso coffee.

Abstract: A device for heating milk includes a body (2) having: a steam injecting conduit and a milk conduit emerging into a suction chamber; and a heating chamber (4) extending from an outlet of the suction chamber to an outlet (7) through which the heated milk can flow outside said body (2). The heating chamber (4) includes a globally helical inner conduit (40). A coffee machine including such a device is also disclosed.

Abstract: A device for producing a milk emulsion includes: a steam injection conduit (10), a milk conduit (15), an air conduit (16) which opens into a suction chamber (3), and an air control element (25) designed to adjust the air flow passing through the air conduit. The device also includes a tubular segment (14) having an outer surface (24) at which the air conduit (16) opens. The air control element (25) includes first and second sealing elements (29, 30) provided on the outer surface (24). In addition, the air control element (25) can move between (i) a cappuccino position in which the opening (22) of the air conduit (16) communicates with the atmosphere and (ii) a hot milk position in which the first and second sealing elements define a sealed space containing the air conduit opening. A coffee machine including one such device is also disclosed.