Abstract: The present invention relates to a machine for preparing coffee infusions by means of a liquid under pressure, in particular water under pressure, the machine comprising: a pump assembly (11) arranged to raise the pressure of the liquid outgoing from the pump assembly up to a preset pressure value (PI); one or more dispensing units (14) connected to the pump assembly, each dispensing unit (14) being arranged to dispense the coffee infusion; one or more pressure managing devices (20), each managing device (20) being connected to a certain dispensing unit (14). In the machine (10), the pressure managing device (20) includes a first duct (15) and at least one second duct (16) that are connected in parallel, have a common outlet and are arranged to supply the dispensing unit (14), during the coffee infusion preparation, with liquid at different pressures.

Abstract: The present invention relates to a hot water supplying device for coffee machines comprising a condensation chamber having at least one output duct for supplying the hot water, a first duct having a first flow rate and arranged for injecting water or steam at a first temperature into the chamber, a second duct having a second flow rate and arranged for injecting water at a second temperature into the chamber.

Abstract: The present invention relates to a machine for preparing coffee infusions by means of a liquid under pressure, in particular water under pressure, the machine comprising: a pump assembly (11) arranged to raise the pressure of the liquid outgoing from the pump assembly up to a preset pressure value (PI); one or more dispensing units (14) connected to the pump assembly, each dispensing unit (14) being arranged to dispense the coffee infusion; one or more pressure managing devices (20), each managing device (20) being connected to a certain dispensing unit (14). In the machine (10), the pressure managing device (20) includes a first duct (15) and at least one second duct (16) that are connected in parallel, have a common outlet and are arranged to supply the dispensing unit (14), during the coffee infusion preparation, with liquid at different pressures.

Abstract: This invention relates to a brew group for an infusion machine, in particular a machine for espresso coffee, comprising infusion means (43, 43b) designed for the preparation of infusions, a holding chamber (41) hydraulically connected to the said infusion means (43, 43b) and comprising at least two liquid inlets (411) allowing the delivery of liquids and heating means (46) capable of directly heating the liquids delivered to the holding chamber (41) through the inlets such as to hydraulically feed the infusion means (43, 43b) for the preparation of infusions. The invention also relates to a machine which comprises the brew group and a method for operating the machine.

Abstract: The present invention relates to a component configured to be associated with a pipe arranged to supply a pressurized fluid into a beverage in order to admix the fluid to the beverage. The component includes a venturi having a first, upstream region at high pressure and low kinetic energy, and a second, downstream region at low pressure and high kinetic energy for said fluid. In the component, a first plurality of throughholes forms the venturi and puts the first region into communication with the second region, and a second plurality of throughholes is arranged so as to converge towards the second region. The present invention also relates to a device including the component and to a method of admixing a fluid to a beverage.

Abstract: The present invention relates to a unit for the preparation of infusions comprising a stationary piston, a mobile chamber (46) and a mobile piston concentric to the mobile chamber, arranged to co-operate for the preparation of infusions and to generate a tablet of exhausted powder apt to be ejected by an ejection device (93, 97, 99). The unit comprises also a plate (45) moved by a motor and elastically linked to the mobile chamber (46) so that such a resilient link is arranged to allow relative movement of the chamber (46) as to the plate (45) and to induce the activation of the ejection device. Advantageously, the resilient link between the plate and the chamber makes the unit of particularly simple realization. The invention also relates to an infusion machine, to the ejection device and to a method for realizing the unit.

Abstract: The present invention relates to a machine (10) and adaptor device (18) for allowing supply of beverages in containers having different sizes at least in height. The device (18) is fixed to a component (15) of the machine (10) and comprises supporting means (53, 54) arranged to rotate substantially in a plane from a first position, in which the machine (10) is apt to supply the beverages in containers having a first height, to a second position in which the machine (10) is apt to supply the beverages in containers having a second height, lower than the first one. The device thanks to the simple construction can be equipped with a motor in order to rotate the supporting means (53, 54). The device (18) may be adapted also to machines in use.

Abstract: The present invention relates to an infusion machine comprising a boiler having first heating means provided for heating a liquid suitable for infusion preparation, in particular for espresso coffee preparation, at least one supplying group (14), and infusion means (43, 43b) provided for infusion preparation and associated with second heating means (46). The supplying group (14) in the machine further comprises an accumulation chamber (41) hydraulically connected to the infusion means (43, 43b) and arranged to contain a certain amount of liquid. Second heating means (46) are provided, which are arranged to directly heat the liquid contained in the accumulation chamber (41) for hydraulically feeding the infusion means (43). The invention also relates to the supplying group and the method of manufacturing the machine.

Abstract: The present invention relates to an apparatus for the regulation of operation parameters, in particular pressure, in a coffee machine. The apparatus comprises a keyboard, arranged for activating the machine and setting operation parameters, and a plurality of light or sound emitting elements arranged to be selectively activated for highlight through a plurality of configurations the operation parameters of the machine set through the keyboard. Thanks to the invention it is possible to avoid on the machine the presence of a display that makes more complex and less reliable the machine. The invention relates also to a machine that comprises the apparatus and to the operating method of the apparatus.

Abstract: The present invention relates to a component configured to be associated with a pipe arranged to supply a pressurised fluid into a beverage in order to admix the fluid to the beverage. The component includes a venturi having a first, upstream region at high pressure and low kinetic energy, and a second, downstream region at low pressure and high kinetic energy for said fluid. In the component, a first plurality of throughholes forms the venturi and puts the first region into communication with the second region, and a second plurality of throughholes is arranged so as to converge towards the second region. The present invention also relates to a device including the component and to a method of admixing a fluid to a beverage.

Abstract: The present invention relates to a device to regulate the level of a liquid inside a boiler of a coffee machine, having a transparent duct connected to the boiler and designed to visibly display the level of the liquid inside the boiler, a capacitive sensor that can be positioned outside the transparent duct in determined positions and designed to generate electric signals representing the presence or absence of liquid in correspondence to the position of the sensor along the transparent duct. The sensor of the device has first measuring elements and second measuring elements, both of capacitive type; the second measuring elements are positioned at a predetermined distance from the first measuring elements, and a measuring device designed to measure the impedance between the first and second measuring elements and to generate signals indicating the presence or absence of liquid in correspondence to the position of the sensor. The invention also relates to the machine that includes this device.

Abstract: The present invention relates to a hot water supplying device for coffee machines comprising a condensation chamber having at least one output duct for supplying the hot water, a first duct having a first flow rate and arranged for injecting water or steam at a first temperature into the chamber, a second duct having a second flow rate and arranged for injecting water at a second temperature into the chamber According to the invention, the device further comprises first interception means (21) applied to the first duct (12) and arranged for supplying a first certain amount of water on the basis of the first flow rate by intercepting or not intercepting water injection by respective first time periods of interception or not interception in a certain time interval and second interception means (31) applied to the second duct (13) and arranged for supplying a second amount of water, calculated on the basis of the second flow rate, by intercepting or not intercepting the water injection by respective second time

Abstract: The present invention relates to a device for heating and/or frothing a beverage (19), including: a first duct (21) connectable to an upstream steam source and having a first valve (31) configured to be opened and closed and to enable or prevent steam flow into the duct; a second duct (22) connectable to the upstream steam source and having a second valve (32) configured to be opened and closed and to enable or prevent steam flow into the duct; mixing means (14), which are connected to a common point of the first and second ducts (21, 22), are located downstream of the first duct (21) and the first valve (31) and downstream of the second duct (22) and the second valve (32) and are arranged to introduce and mix at least steam into the beverage. The device further comprises a Venturi assembly (22a) configured to operate by Venturi effect in order to mix air with steam in one the two ducts when the other of the two ducts is closed.

Abstract: A piston (11) of an automatic machine for infusion of beverages, such as coffee and the like, the piston having a piston head (13a, 13b) divided into two parts connected together and axially movable relative to each other, an annular gasket (15) being housed between those parts and radially expanding when an axially directed thrust such as to make said two piston parts (13a, 13b) approach each other is applied onto said piston (11), wherein the elastic resistance of said gasket (15) keeps said two piston parts (13a, 13b) spaced apart when no axial thrust is applied onto the piston.

Abstract: The present invention relates to an apparatus for the regulation of operation parameters, in particular pressure, in a coffee machine. The apparatus comprises a keyboard, arranged for activating the machine and setting operation parameters, and a plurality of light or sound emitting elements arranged to be selectively activated for highlight through a plurality of configurations the operation parameters of the machine set through the keyboard. Thanks to the invention it is possible to avoid on the machine the presence of a display that makes more complex and less reliable the machine. The invention relates also to a machine that comprises the apparatus and to the operating method of the apparatus.

Abstract: The present invention relates to a machine (10) and adaptor device (18) for allowing supply of beverages in containers having different sizes at least in height. The device (18) is fixed to a component (15) of the machine (10) and comprises supporting means (53, 54) arranged to rotate substantially in a plane from a first position, in which the machine (10) is apt to supply the beverages in containers having a first height, to a second position in which the machine (10) is apt to supply the beverages in containers having a second height, lower than the first one. The device thanks to the simple construction can be equipped with a motor in order to rotate the supporting means (53, 54). The device (18) may be adapted also to machines in use.

Abstract: A steam automatic dispensing device for preparing hot and/or frothed drinks, includes a first duct (13) for introducing steam inside a drink; a second duct (15) for introducing air inside the drink; an electronic control unit (51) for controlling the introduction of steam and/or air through said first and second duct, the control unit being programmable to carry out a predetermined control cycle depending on the desired drink to be obtained and on the drink temperature.

Abstract: The present invention relates to a unit for the preparation of infusions comprising a stationary piston, a mobile chamber (46) and a mobile piston concentric to the mobile chamber, arranged to co-operate for the preparation of infusions and to generate a tablet of exhausted powder apt to be ejected by an ejection device (93, 97, 99). The unit comprises also a plate (45) moved by a motor and elastically linked to the mobile chamber (46) so that such a resilient link is arranged to allow relative movement of the chamber (46) as to the plate (45) and to induce the activation of the ejection device. Advantageously, the resilient link between the plate and the chamber makes the unit of particularly simple realization. The invention also relates to an infusion machine, to the ejection device and to a method for realizing the unit.

Abstract: A steam automatic dispensing device for preparing hot and/or frothed drinks, includes a first duct (13) for introducing steam inside a drink; a second duct (15) for introducing air inside the drink; an electronic control unit (51) for controlling the introduction of steam and/or air through said first and second duct, the control unit being programmable to carry out a predetermined control cycle depending on the desired drink to be obtained and on the drink temperature.

Abstract: A piston (11) of an automatic machine for infusion of beverages, such as coffee and the like, the piston having a piston head (13a, 13b) divided into two parts connected together and axially movable relative to each other, an annular gasket (15) being housed between those parts and radially expanding when an axially directed thrust such as to make said two piston parts (13a, 13b) approach each other is applied onto said piston (11), wherein the elastic resistance of said gasket (15) keeps said two piston parts (13a, 13b) spaced apart when no axial thrust is applied onto the piston.