Abstract: Cleaning device to clean fluid product delivery elements (53), comprising a washing receptacle (11) provided with walls (12, 13) that define a container configured to be receive a washing fluid (100), and movement means (22, 25) configured to move the washing receptacle (11) between a cleaning position (C), in which the washing receptacle (11) is disposed in proximity to the delivery elements (53) to be cleaned in a position such that the delivery elements (53) are at least partly immersed in the washing fluid (100), and an inactive position (R), in which the washing receptacle (11) is distanced from the delivery elements (53).

Abstract: A container to contain fluid products, installed in a dispensing machine for fluid products, which is provided with a pair of delivery stations which have respective axes of delivery (X1) arranged at a determinate distance (D1) from each other. The container comprises an outer wall shaped so as to define an inner compartment consisting of two cylindrical zones connected by an intermediate zone. The distance (D2) between the longitudinal axes (X2) of the two cylindrical zones is substantially equal to the determinate distance (D1) between the axes of delivery (X1).

Abstract: A container to contain fluid products, installed in a dispensing machine for fluid products, which is provided with a pair of delivery stations which have respective axes of delivery (X1) arranged at a determinate distance (D1) from each other. The container comprises an outer wall shaped so as to define an inner compartment consisting of two cylindrical zones connected by an intermediate zone. The distance (D2) between the longitudinal axes (X2) of the two cylindrical zones is substantially equal to the determinate distance (D1) between the axes of delivery (X1).

Abstract: A positive-displacement pump, in particular for use in machines or dispensing fluids, including two elements that are with respect to one another and which mesh with one another (20, 30), each of them being rotatably mounted in the pump with centered coupling without interference with a corresponding centering body (18, 11a). At least one of the two above-mentioned ratable elements has a plurality of undercut regions (26, 34, 35)) at the location of the centering walls. The undercut regions (26, 34, 35) comprise a wall portion which is spaced with respect to the facing wall of the respective centering body.

Abstract: A positive-displacement pump, in particular for use in machines or dispensing fluids, including two elements that are with respect to one another and which mesh with one another (20, 30), each of them being rotatably mounted in the pump with centered coupling without interference with a corresponding centering body (18, 11a). At least one of the two above-mentioned ratable elements has a plurality of undercut regions (26, 34, 35)) at the location of the centering walls. The undercut regions (26, 34, 35) comprise a wall portion which is spaced with respect to the facing wall of the respective centering body.

Abstract: A positive-displacement pump, in particular for use in machines or dispensing fluids, including two elements that are with respect to one another and which mesh with one another (20, 30), each of them being rotatably mounted in the pump with centered coupling without interference with a corresponding centering body (18, 11a). At least one of the two above-mentioned ratable elements has a plurality of undercut regions (26, 34, 35) at the location of the centering walls. The undercut regions (26, 34, 35) comprise a wall portion which is spaced with respect to the facing wall of the respective centering body.

Abstract: A circuit for dispensing fluids, in particular, dyes, inks, paints and the like, including pump means including a variable-volume chamber with at least one flexible wall. The pump means communicate with an output duct for dispensing the fluids. Two one-way valves are mounted in series in the outlet duct.

Abstract: A positive-displacement pump, in particular for use in machines or dispensing fluids, including two elements that are with respect to one another and which mesh with one another (20, 30), each of them being rotatably mounted in the pump with centered coupling without interference with a corresponding centering body (18, 11a). At least one of the two above-mentioned ratable elements has a plurality of undercut regions (26, 34, 35) at the location of the centering walls. The undercut regions (26, 34, 35) comprise a wall portion which is spaced with respect to the facing wall of the respective centering body.

Abstract: A dispensing unit for a fluid dispensing machine comprises at least an inlet duct (35) and an outlet duct (36) for fluid products, connected to a variable-volume pumping chamber (30) comprising at least one flexible wall (30a). Two non return valves mounted in counter-phase are located in the inlet and outlet ducts (35, 36), respectively. The pumping chamber is coupled to actuator means comprising a stepper motor (20) a screw-nut screw unit and a carriage (28). The carriage moves the pumping chamber from a zero position in which the chamber has a maximum volume to an upper limit in which the chamber has a minimum volume. An optic sensor (40) defines the zero point of the pumping chamber (30) so as to guarantee precision and repeatability of the dispensing operations.