Abstract: Self-calibrating return spring pump (300; 400), in particular self-calibrating return spring dosing pump, configured to carry out a volume pumping of a fluid (190) in a variable-volume front chamber (180), the self-calibrating pump (300; 400) being provided with a rear chamber (200) housed in a lantern (205) and with movable mechanical means (140, 150, 160; 140; 150) for forming a movable wall (170; 340) of the rear chamber (320) and for causing the movable wall (170; 340) of the rear chamber (320) to make a reciprocating motion when said movable mechanical means (140, 150, 160; 140; 150) interacts with cam or eccentric mechanical means (110), the front chamber (180) being configured to increase in volume when the rear chamber (200) decreases in volume and vice versa, the pump further comprising elastic means (210) for elastic return of said movable mechanical means (140, 150, 160; 140; 150), the pump being characterised in that the rear chamber (320) is provided with one-way valve means (310) configured to a

Abstract: A membrane pump includes a pump body having a working chamber and a head having a distribution chamber. The pump body and the head delimit a pumping chamber formed between a terminal wall of the pump body and a terminal wall of the head. At least one membrane in the pumping chamber is configured to separate the working chamber from the distribution chamber. The membrane is shaped to be moved by a fluid contained in the working chamber, from a suction configuration to a delivery configuration within the working chamber. The pump additionally includes a sealing device coupleable to the membrane that is shaped to define a first interspace between the terminal wall of the pump body and the membrane at the suction configuration of the membrane and/or may be shaped to define a second interspace between the terminal wall of the head and the membrane at the delivery configuration.

Abstract: This invention relates to a magnetically actuated valve (60), in particular for a mixing apparatus, comprising mechanical means (50, 51, 53, 62) for opening and closing the valve (60), at least one ferromagnetic metal pin (52) mobile between a rest position and an operating position, and at least one activation magnet (61) mobile between a first position and a second position, said mechanical means (50, 51, 53, 62) being capable to interact with said at least one ferromagnetic metal pin (52) for opening and closing the valve (60), said at least one activation magnet (61) being capable to magnetically interact with said at least one ferromagnetic metal pin (52), the valve (60) being characterized in that it comprises sliding mechanical means (63, 64, 65, 66, 67, 68) comprising a slide (63) integrally coupled to said at least one activation magnet (61) and mobile between an initial position and a final position.

Abstract: This invention relates to a mixing apparatus assembly with air gap separation, comprising a first duct (22), having an inlet mouth (235) and a diameter D, connected to an air gap valve (223) downstream of which a venturi mixing device (4) is connected, the air gap valve (223) comprising a nozzle (224) having an outlet (225) spaced apart by a separation distance (226) from a collecting duct (227), the first duct (22) and the air gap valve (223) forming a linear channel upstream of the outlet (225) of the nozzle (224), going from the inlet mouth (235) of the first duct (22) to the outlet (225) of the nozzle (224) and having a length L, the assembly being characterized in that the length L being not shorter than D and not longer than 20D, i.e. D?L?20D, and in that said linear channel is provided with a flow straightener (228). This invention further relates to an apparatus for mixing a liquid comprising such assembly.

Abstract: This invention relates to a flexible membrane separation valve, comprising a housing (120), the lateral surfaces of which are provided with slits (121), within which housing (120) a flexible membrane (122) with cylindrical symmetry is housed, within which an insert (130) having a body (131) with cylindrical symmetry is in turn housed, the insert (130) comprising a proximal end (132) having a proximal apex (133) spaced along the longitudinal axis of the insert (130) from a base (134) with cylindrical symmetry, through which the proximal end (132) joins to the body (131), the proximal apex (133) being joined to the base (134) through a continuous surface, the valve being characterized in that the proximal end (132) has an axial section such that tangent lines to the proximal apex (133) form an angle containing the longitudinal axis of the insert that is lower than or equal to 90°. The invention further relates to an apparatus for mixing a liquid comprising such a flexible membrane separation valve.

Abstract: Self-calibrating return spring pump (300; 400), in particular self-calibrating return spring dosing pump, configured to carry out a volume pumping of a fluid (190) in a variable-volume front chamber (180), the self-calibrating pump (300; 400) being provided with a rear chamber (200) housed in a lantern (205) and with movable mechanical means (140, 150, 160; 140; 150) for forming a movable wall (170; 340) of the rear chamber (320) and for causing the movable wall (170; 340) of the rear chamber (320) to make a reciprocating motion when said movable mechanical means (140, 150, 160; 140; 150) interacts with cam or eccentric mechanical means (110), the front chamber (180) being configured to increase in volume when the rear chamber (200) decreases in volume and vice versa, the pump further comprising elastic means (210) for elastic return of said movable mechanical means (140, 150, 160; 140; 150), the pump being characterised in that the rear chamber (320) is provided with one-way valve means (310) configured to a

Abstract: This invention relates to a hydraulic system comprising a hydraulic cross connection (90), housed in a housing case (99) to be mounted on a rear planar support (98), comprising inlet and outlet ducts (70, 71), at least one tubular element (105, 106) insertable in each one of said ducts (70, 71), and at least one quick coupling removable hook (91; 991), configured to be inserted in a seat (100) obtained on an outer wall of each one of said ducts (70, 71), the hydraulic system being characterized in that said at least one quick coupling removable hook (91; 991) is configured to be posteriorly inserted in the seat (100) and it comprises at least one rear arm (95; 995), and in that the housing case (99) is shaped so that a distance separating the seat (100) of each one of said ducts (70, 71) from the rear planar support (98) is such that said at least one removable hook (91; 991) is removable from the seat (100) and said at least one tubular element (105, 106) is extractable from the inlet or outlet duct (70, 71)

Abstract: This invention relates to a mixing apparatus assembly with air gap separation, comprising a first duct (22), having an inlet mouth (235) and a diameter D, connected to an air gap valve (223) downstream of which a venturi mixing device (4) is connected, the air gap valve (223) comprising a nozzle (224) having an outlet (225) spaced apart by a separation distance (226) from a collecting duct (227), the first duct (22) and the air gap valve (223) forming a linear channel upstream of the outlet (225) of the nozzle (224), going from the inlet mouth (235) of the first duct (22) to the outlet (225) of the nozzle (224) and having a length L, the assembly being characterised in that the length L being not shorter than D and not longer than 20D, i.e. D?L?20D, and in that said linear channel is provided with a flow straightener (228). This invention further relates to an apparatus for mixing a liquid comprising such assembly.

Abstract: This invention relates to a flexible membrane separation valve, comprising a housing (120), the lateral surfaces of which are provided with slits (121), within which housing (120) a flexible membrane (122) with cylindrical symmetry is housed, within which an insert (130) having a body (131) with cylindrical symmetry is in turn housed, the insert (130) comprising a proximal end (132) having a proximal apex (133) spaced along the longitudinal axis of the insert (130) from a base (134) with cylindrical symmetry, through which the proximal end (132) joins to the body (131), the proximal apex (133) being joined to the base (134) through a continuous surface, the valve being characterised in that the proximal end (132) has an axial section such that tangent lines to the proximal apex (133) form an angle containing the longitudinal axis of the insert that is lower than or equal to 90°. The invention further relates to an apparatus for mixing a liquid comprising such a flexible membrane separation valve.

Abstract: This invention relates to a magnetically actuated valve (60), in particular for a mixing apparatus, comprising mechanical means (50, 51, 53, 62) for opening and closing the valve (60), at least one ferromagnetic metal pin (52) mobile between a rest position and an operating position, and at least one activation magnet (61) mobile between a first position and a second position, said mechanical means (50, 51, 53, 62) being capable to interact with said at least one ferromagnetic metal pin (52) for opening and closing the valve (60), said at least one activation magnet (61) being capable to magnetically interact with said at least one ferromagnetic metal pin (52), the valve (60) being characterised in that it comprises sliding mechanical means (63, 64, 65, 66, 67, 68) comprising a slide (63) integrally coupled to said at least one activation magnet (61) and mobile between an initial position and a final position.

Abstract: This invention relates to a hydraulic system comprising a hydraulic cross connection (90), housed in a housing case (99) to be mounted on a rear planar support (98), comprising inlet and outlet ducts (70, 71), at least one tubular element (105, 106) insertable in each one of said ducts (70, 71), and at least one quick coupling removable hook (91; 991), configured to be inserted in a seat (100) obtained on an outer wall of each one of said ducts (70, 71), the hydraulic system being characterised in that said at least one quick coupling removable hook (91; 991) is configured to be posteriorly inserted in the seat (100) and it comprises at least one rear arm (95; 995), and in that the housing case (99) is shaped so that a distance separating the seat (100) of each one of said ducts (70, 71) from the rear planar support (98) is such that said at least one removable hook (91; 991) is removable from the seat (100) and said at least one tubular element (105, 106) is extractable from the inlet or outlet duct (70, 71)

Abstract: A device and method are disclosed for driving an electromagnet for operating a pump. The electromagnet includes a primary winding and a moving element that is attracted within the primary winding when an energizing current is higher than a first threshold value. The moving element lets a liquid dose into an external hydraulic circuit depending on the a travel of the moving element. A control logic unit detects an energizing current to provide the energizing current to the primary winding until the energizing current assumes a second threshold value, depending on a value of the liquid dose to let into the external hydraulic circuit. The second threshold value is higher than the first threshold value and not higher than a third threshold value in correspondence of which the moving element arrives at a stop.

Abstract: The present invention concerns a control apparatus for a washing station comprising at least one inlet (3, 4) for a first fluid, preferably water, connected to at least one selector valve (1), which is in turn connected to first hydraulic pipe means (5, 7, 9, 13, 17), provided with first venturi mixing means (11, 31), and to third hydraulic pipe means (15), the first and third hydraulic pipe means (15) being connected to at least one respective outlet (16), the apparatus being characterised in that the selector valve (1) is further connected to second hydraulic pipe means (6, 8, 10, 14, 18), provided with second venturi mixing means (12, 32), also connected to said at least one outlet (16).

Abstract: The present invention concerns an adaptor device for coupling a suction nozzle to a container, preferably containing chemical products, comprising:—an at least partially elastic disc (1), provided with a through hole (2), one or more tongues (4) coupled to the disc (1) and projecting from one surface of the disc (1), the disc (1) being capable to transmit a pressure exerted onto a perimeter of the through hole (2) so that a free end of each one of said one or more tongues (4) bends towards a central portion of the disc (1).

Abstract: A device for driving an electromagnet, for operating pumps, including a primary winding and a moving element, power switching electronic means, a control logic unit to control the power switching electronic means and to detect a value of an excitation current. A power supply of the control logic unit provided by a corresponding shunt (PP) of the primary winding, the control logic unit controlling the power switching electronic means depending on the detected value of the excitation current to make the electromagnet operate as an auto-transformer for providing the power supply to the control logic unit and maintaining the function of attracting the moving element substantially unchanged. Further disclosed are the corresponding driven electromagnet and the related method for driving the electromagnet.

Abstract: The present invention concerns a device for driving an electromagnet for operating a pump, as well as the related method and the related dosing electromagnetic pump, the electromagnet comprising a primary winding and a moving element, capable to be attracted within the primary winding when an energising current is higher than a first threshold value so as to let a liquid dose into an external hydraulic circuit depending on the travel of the moving element, the device comprising a control logic unit, capable to control said energising current, the device being characterised in that the control logic unit is capable to detect said energising current so as to provide said energising current to the primary winding until said energising current assumes a second threshold value, depending on a value of the liquid dose to let into the external hydraulic circuit, higher than the first threshold value and not higher than a third threshold value in correspondence of which the moving element arrives at stop.

Abstract: The present invention concerns a device for driving an electromagnet (4), particularly for operating pumps, comprising a primary winding (3) and a moving element (9), the device comprising power switching electronic means (S1, S2), the device being characterised in that it comprises a control logic unit (6), apt to control said power switching electronic means (S1, S2) and to detect the value of said excitation current, the power supply of the control logic unit (6) being provided by a corresponding shunt (PP) of the primary winding (3), the control logic unit (6) controlling said power switching electronic means (S1, S2) depending on the detected value of said excitation current, so as to make the electromagnet (4) operate as auto-transformer for sufficiently providing said power supply to the control logic unit (6) maintaining the function of attracting the moving element (9) substantially unchanged.