An assembly for processing viscous material comprises a process duct extending along a longitudinal axis, wherein viscous material advances in one advancing direction, at least one pumping device provided with a stator comprising a cylindrical seat, and at least one cylindrical rotor. The at least one cylindrical rotor is housed in the stator and is coupled to the stator with a sliding seal. The rotor rotates around a rotating axis substantially parallel to the longitudinal axis and has an outer face with at least one groove, which forms with the inner surface of the stator one pumping channel. The pumping device is configured so that the pumping channel extends between at least one inlet and at least one outlet and the inlet and the outlet are in fluid connection with the process duct.

The invention relates to a rotary shaft (23) for processing foodstuffs, wherein the rotary shaft (23) has a rotation axis and the rotary shaft comprises at least one tool (11). The at least one tool (11) extends along the rotation axis. The tool (11) further has an airfoil profile such that the tool comprises a leading edge, a trailing edge, an upper surface and a lower surface, wherein the leading edge and the trailing edge are different.

The invention relates to an apparatus for aerating a pasty product. The apparatus comprises a housing (1) with an inlet (4) for the pasty product to be aerated and an outlet (5) for the aerated product.

The apparatus comprises at least a first set of a rotor and a stator (21) and a second set of a rotor and a stator (22). The apparatus further comprises a gas injector (6) for injecting, upstream of the first set of a rotor and a stator (21), a gas into the pasty product to be aerated.

The apparatus further comprises an intermediate mixing chamber (7) provided in the housing between the first and the second sets of a rotor and a stator (21,22). A secondary product introduction means protrudes into the intermediate mixing chamber (7) so as to issue into said intermediate mixing chamber (7).

A method for aerating a pasty product is also provided.

An apparatus includes a housing with an inlet for a pasty product to be aerated and an outlet for the aerated product. The apparatus includes at least a first set of a rotor and a stator and a second set of a rotor and a stator. The apparatus further includes a gas injector for injecting, upstream of the first set of the rotor and the stator, a gas into the pasty product to be aerated. The apparatus further includes an intermediate mixing chamber provided in the housing between the first and the second sets of the rotor and the stator . A secondary product introduction member protrudes into the intermediate mixing chamber so as to issue into the intermediate mixing chamber. A method for aerating a pasty product is also provided.

A machine for processing liquid or semi-liquid food products, includes: at least one container for containing the product to be processed; at least one stirrer, mounted inside the container, to rotate about an axis of rotation; the machine is characterized in that the stirrer comprises at least: a first protuberance extending along the axis of rotation; a plurality of scraping elements, each provided with a cavity for accommodating the first protuberance; a first locking element, removably associable with the first protuberance and movable between an engaged position, where it is locked to the first protuberance to couple the scraping elements to the first protuberance, and a disengaged position, where it is movable relative to the first protuberance to allow uncoupling the scraping elements.

The invention relates to a rotary shaft for processing foodstuffs, the rotary shaft has a rotation axis and the rotary shaft comprises at least one tool which extends along the rotation axis. The tool has an airfoil profile such that the tool comprises a leading edge, a trailing edge, an upper surface and a lower surface. Further, the tool comprises at least one fluid channel between the mean camber line of the airfoil profile and the upper surface of the tool.

The invention concerns a device 51 for mixing at least two components, characterised by the fact that the mixing device 51 comprises two containers 52 and 53 each provided with: a. at least one opening 110 connected by a conduit 55 and provided with a device allowing the available volume of the containers 52 and 53 to be varied alternately, pistons 50 that are able to be moved in opposing directions, so as to transfer the content from one of the containers 52 or 53 into the other container 52 or 53 through the openings 110 and the conduit 55; and b. at least one inlet opening X allowing the at least two components to enter; said mixing device not comprising an additional outlet opening, one of the inlet openings X allowing both at least one component to enter, and the mixture of the at least two components obtained to leave. The invention also concerns a method for mixing cosmetic components using this mixing device and a device for manufacturing and dispensing a customised cosmetic composition comprising said mixing device.

At a part of the screw main body at which the kneading portion is provided, conveyance portions, a barrier portion and a path are provided at a plurality of places. At least one of the places, the path is provided inside the screw main body, and includes an entrance and an exit. The entrance is opened in such a manner that the raw material whose pressure is enhanced by being restricted in conveyance by the barrier portion flows into the entrance. The path is formed in such a manner that the raw material flowing into the path from the entrance flows toward the exit in a direction opposite to the direction of conveyance.

The invention relates to a system for producing and/or preparing confectionery compounds from at least one liquid raw material and granular and/or powder raw materials. The system includes at least one first mixing container and at least one other product-processing device. The first mixing container has at least one raw material inlet, a product outlet, and a mixing device for mixing the raw materials in an at least largely homogenous manner. According to the invention, at least the mixing container includes at least one spray device in an upper container region for introducing the at least one liquid raw material, wherein at least one exit cone of the spray device is oriented in the direction of an inner wall surface of the first mixing container at least in some regions. The invention further relates to a method for cleaning a system for producing and/or preparing confectionery compounds.

The invention relates to an apparatus for aerating a pasty product. The apparatus comprises a housing (1) with an inlet (4) for the pasty product to be aerated and an outlet (5) for the aerated product. The apparatus comprises at least a first set of a rotor and a stator (21) and a second set of a rotor and a stator (22). The apparatus further comprises a gas injector (6) for injecting, upstream of the first set of a rotor and a stator (21), a gas into the pasty product to be aerated. The apparatus further comprises an intermediate mixing chamber (7) provided in the housing between the first and the second sets of a rotor and a stator (21, 22). A secondary product introduction means protrudes into the intermediate mixing chamber (7) so as to issue into said intermediate mixing chamber (7). A method for aerating a pasty product is also provided.