Abstract: A method for cleaning a spraying circuit, in particular of paint, and for treating the chemical effluents generated includes a first rinsing of the paint circuit using a predetermined first volume of treated effluent, a second rinsing of the paint circuit using a predetermined second volume of ecosolvent and a third rinsing of the paint circuit using a predetermined third volume of treated effluent, so as to save on the consumption of water from the network by recycling the treated effluent to clean and rinse the paint circuit.

Abstract: A submersible pump for removing liquids from an enclosure having at least one outlet socket for discharging liquid from the enclosure, an electric actuator with a rotary output shaft, a bladed wheel within the enclosure and driven by the actuator and rotating about an axis of the output shaft and wherein a wall of the enclosure is defined by a base having at least one inlet orifice for drawing liquids into the enclosure, and a plate mounted in a reversible manner within the enclosure and close to the base in two distinct configurations, and wherein in one mounting configuration a first cavity of a first dimension is created adjacent the base for the passage of a liquid laden with solid particles and in the other mounting configuration a second cavity of a second dimension is created adjacent the base for the passage of a clear liquid.

Abstract: This atomizer (P) comprises: a body comprising an inner portion (20) and an outer portion; an atomizer member (1); outlet channels (42) about the spraying axis (X1) for ejecting air (J42) so as to shape the spray of material (J1); an outlet chamber (324) communicating with the outlet channels (42); and an inlet duct (201) for feeding air to the outlet channels (42). This atomizer (P) further comprises: at least two intermediate chambers (210, 230, 250) juxtaposed and extending about the spraying axis (X1); axial intermediate channels (221-224, 241-248), two juxtaposed intermediate chambers (210, 230, 250) being interconnected via a set of intermediate channels (221-224, 241-248) distributed about the spraying axis (X1); and outlet ducts (261-268) distributed about the spraying axis (X1).

Abstract: The system comprises a first alternating pump (1) for injecting a dose of a first component (4) into a mixer (3) and a second alternating pump (2) for injecting a dose of a second component (5) into the mixer (3) sequentially relative to the first pump. The movement of the piston of each pump can be reversed from a direction of suction and expulsion of the pump to a direction of expulsion of the corresponding component, and vice versa. An injection valve (10, 11) is inserted between each pump (1, 2) and the mixer (3). The system also comprises a programmed controller (20) for initiating the movement of the piston of a pump in the direction of suction and expulsion of the volume of this pump after having determined, following the closing of the injection valve (10, 11), that the remaining volume in the pump (1, 2) is inadequate for injecting the following dose into the mixer (3).

Abstract: The invention relates to a station (S) for reloading a sprayer (1) provided with a tank (10), said station comprising: a means (121) for coupling to at least one coating material circuit (70-79); a clamping unit (200) that defines an area (250) for receiving a sprayer (1); at least one accumulator (110, 120, 130, 140, 150), the volume of which is greater than or equal to the volume of the tank (10), each accumulator (110, 120, 130, 140, 150) being connected to at least one respective circuit (20, 70-79) by the coupling means (121; 170-179); means (125, 120.1, 120.2) for pressurizing the accumulator (110, 120, 130, 140, 150); means (121, 123-153) for connecting each accumulator (110, 120, 130, 140, 150) to the clamping unit (200); and a member (222) for connecting the clamping unit (200) to the tank (10).

Abstract: A manual sprayer for receiving a liquid which includes a gripping knob mounted on one end of a reservoir and a spray assembly mounted in fluid communication on another end of the reservoir, a skirt for supporting the spray assembly against the ground, and a vent for venting the reservoir. The apparatus includes a valve that is actuated by a user gripping the knob and the valve being movable between a closed position preventing communication between the reservoir and the outside and an open position allowing such communication.

Abstract: This device comprises a sprayer (10) and a reservoir (9) for feeding the sprayer with fluid. The reservoir (9) defines a cylindrical housing (L9) in which there slides (F1) a piston (91) forming a moving wall (91a) for a storage volume (V9) for storing the coating fluid. The housing (L9) is defined by a jacket (92) placed in a support-forming body (95). The jacket (92) has an end wall (93) co-operating with the peripheral wall (96) of the jacket (92) and with the piston (91), to define the above-mentioned storage volume (V9). No interstice are present in which the coating fluid could accumulate, thereby making the reservoir (9) easier to clean.

Abstract: The invention concerns a rotary nozzle combination (P) for coating product comprising an atomizing bowl (3) and a rotor (11) adapted to rotate the bowl about a geometrical axis (X-X?), and means (4, 5, 6, 7) for controlling the presence and/or proper mounting of the bowl (3) on the rotor (11). The rotor (11) is spaced apart from a non-rotating part (P1) and the control means comprise first means (4, 5) enabling a force (F3) to be applied on the bowl (3) tending to vary the thickness of an air-film of the pneumatic thrust bearing (P1), as well as second means (7, 8) for determining the air pressure in the bearing (P1). The pressure of air in the thrust bearing (P1) can be determined when the latter is normally supplied and compared with at least one reference value.

Abstract: The invention relates to a rotary projector for a coating product that comprises a spraying member (1) having at least one ridge (12) capable of forming a jet of product, a means for rotating the member (1), a stationary body (2) having primary (4) and secondary (6) openings formed on primary and secondary outlines surrounding the rotation axis (X1) of the member (1) and for respectively outputting primary and secondary air jets (J6). Each primary air jet is inclined relative to the rotation axis (X1) in a primary direction such that the primary air jet freely crosses the area where the ridge (12) is located, while each secondary air jet is inclined relative to the rotation axis (Xl) in a secondary direction (J6) having at least one axial component (A6) and one radial component (R6), said components (A6, R6) being such that the secondary air jet (J6) impinges on an outer surface (13) of the spraying member (1).

Abstract: This spraying member (10) comprises at least one outer bowl (100) and one inner bowl (200), each bowl defining a spraying edge (101, 201), one inner spreading surface (102, 202) and one outer surface (103, 203). The inner bowl (200) is positioned radially on the inside of the outer bowl (100), whereas a volume (V1) defined between the inner surface (102) of the outer bowl (100) and the outer surface (203) of the inner bowl (200) has a thickness (e), corresponding to the distance between this inner surface (102) and this outer surface (203), decreasing between a first value (e1), taken at the zone for inlet of cleaning product into the volume (V1), and a second value (e2), taken at the spraying edge (101) of the outer bowl (100). The spraying member (10) comprises means (68) for the central supply of the inner spreading surfaces (102, 202).

Abstract: The invention relates to a member (10) for spraying a coating product comprising a primary surface (20) for spreading the product and at least two secondary, inner (21) and outer (22) surfaces for spreading the product that extend downstream of the primary surface (20), the primary (20) and secondary (21, 22) surfaces being coaxial (X10-X10), the downstream portions of the secondary surfaces (21, 22) defining an inner spraying edge (23) and an outer spraying edge (24). The downstream portions (21b, 22b) of the secondary surfaces (21, 22) have, relative to one another, directions (A21, A22) that are overall divergent towards the downstream direction. The inner edge (23) has a diameter substantially smaller than the diameter of the outer edge (24).

Abstract: The invention relates to a valve (1), comprising a body (2), within which a needle (3) moves, which can rest with sealing against a seat (23), fixed to the body (2). The needle (3) is magnetically coupled to an actuator body (5), across a closed and a magnetic chamber (4) provided with several magnets (52) between which magnetic bodies (53) are interspersed. The needle (3) has no magnets and is provided with ribs (36) made from a magnetic material. According to the invention, an improved magnetic coupling may be achieved, whereby the thickness and the relative separation of the ribs (36) are largely equal to the thickness (e53) and the relative separation (l52) of the magnetic bodies (53).

Abstract: The invention concerns a device comprising a sprayer (10) and a reservoir (9) feeding product to the sprayer. Said reservoir (9) defines a cylindrical housing (L9) wherein slides (F1) a piston (91) forming a mobile wall (91a) for a volume (V9) for storing coating product. Said housing (L9) is delimited by a sleeve (92) arranged in a support-forming body (95). The sleeve (92) is provided with a base (93) delimiting, with the peripheral wall (96) of the sleeve (92) and the piston (91), said storage volume (V9). There is no interstice wherein the coating product could accumulate, thereby facilitating the cleaning of the reservoir (9).

Abstract: This apparatus for manual and localized spraying, the apparatus comprising a tubular reservoir (1) suitable for receiving a plant treatment liquid, a gripping knob (3) mounted on one end of the reservoir, a spray assembly (5) mounted in fluid communication on the other end of the reservoir and comprising spray means (27) and tip means (51) enabling said spray assembly (5) to be pressed against the ground, and vent means for venting said reservoir. The apparatus is remarkable in that said vent means comprise a valve (13) that is actuated merely by a user gripping said knob (3), the valve being movable between a closed position preventing communication between said reservoir (1) and the outside, and an open position allowing said communication, resilient means (17) being provided for urging said valve (13) towards its closed position.

Abstract: An automatic spray gun includes a nozzle (4) for ejecting the product that is to be sprayed, controlled by a needle valve (9), and means (14, 10) for controlling the movement of the needle (9). A tabular elastic sealing means (13) surrounds the needle valve (9) and is mounted trapped between the front (1a) and rear (1b) parts of the body. The interior surface of the tabular means (13) is tailored to the diameters of the needle valve (9) and of a control slide (14) mounted on the needle valve in order to move the needle thereof.

Abstract: The system comprises a first alternating pump (1) for injecting a dose of a first component (4) into a mixer (3) and a second alternating pump (2) for injecting a dose of a second component (5) into the mixer (3) sequentially relative to the first pump. The movement of the piston of each pump can be reversed from a direction of suction and expulsion of the pump to a direction of expulsion of the corresponding component, and vice versa. An injection valve (10, 11) is inserted between each pump (1, 2) and the mixer (3). The system also comprises a programmed controller (20) for initiating the movement of the piston of a pump in the direction of suction and expulsion of the volume of this pump after having determined, following the closing of the injection valve (10, 11), that the remaining volume in the pump (1, 2) is inadequate for injecting the following dose into the mixer (3).

Abstract: This spray nozzle (101) comprises: a tubular channel (104) extending along a longitudinal axis (X101-X?101); a slot (106) formed by two approximately plane surfaces (161), converging in the direction of the channel (104) and located on either side of a plane comprising the longitudinal axis (X101-X?101) of the channel (104); and a dome (105) connecting the channel (104) and the slot (106). The length (L105) of the dome (105) represents less than 50%, preferably between 20% and 45%, of the largest transverse dimension (D104) of the channel (104). A plane cross section of the dome (105) is symmetric and it is defined by at least two different circle arcs (C1051, C1052, C?1051, C?1052).

Abstract: This submersible pump, for removing liquids (L) comprising: an enclosure having at least one outlet socket for liquid (L) communicating with the outside of the enclosure, an electric actuator (22) with a rotary (Z22) output shaft (225), a bladed wheel (5) placed in the enclosure, driven by the actuator (22) and capable of rotating about the axis (Z22) of the output shaft (225), is characterized in that a wall of the enclosure is defined by a base (3) having at least one inlet orifice (33) communicating with the outside of the enclosure, and in that it comprises a plate (4) capable of being mounted in a reversible manner close to the base (3) in two distinct configurations, one mounting configuration being designed for the passage of a liquid (L) laden with solid particles, the other mounting configuration being designed for the passage of a clear liquid.

Abstract: The bowl according to the invention is equipped with first magnetic coupling means adapted to cooperate with second complementary magnetic coupling means fixed on a non-rotary part of a sprayer, these first and second coupling means being adapted to exert an at least partially axial effort inducing the coupling in rotation of the bowl with a corresponding drive member. The radial width of an annular or truncated surface defined by the first coupling means is greater than the total radial width of the coupling means borne by the non-rotary part.