Abstract: A fluid dispenser head including a spray wall (1) that defines a central axis (X) and that is perforated with holes (O1, O2) through which the fluid under pressure passes so as to form jets of fluid, the holes (O1, O2) extend along axes (Y1, Y2) that correspond to the path of the jets of fluid; the dispenser head being characterized in that at least some of the axes (Y1, Y2) intersect, such that the jets of fluid that extend along the intersecting axes (Y1, Y2) meet at at least one collision point (P).

Abstract: The invention relates to a dispenser comprising: a pump (P) comprising a pump body (P1) defining an inlet (P3), a cap (1) rigidly connected to two reservoirs, the cap (1) forming a reception cavity (10), the cap (1) defining at least two connecting ducts (16, 151) each connecting one reservoir respectively, characterised in that the dispenser further comprises an endpiece (2) rigidly connected to the pump body (P1), the endpiece (2) defining an interior space (20) which communicates with the inlet (P3) and at least two through-holes (241, 261) which connect the outside of the endpiece (2) with the interior space (20) thereof, the endpiece (2) being rotatably mounted in the reception cavity (10) in order to establish fluid paths between the connecting ducts (16, 151) of the cap (1) and the through-holes (241, 261) of the endpiece (2).

Abstract: Disclosed is a refillable fluid product dispenser comprising: a fluid product reservoir (R) defining a neck (R2); a dispensing member (P) that is mounted on the neck (R2) and comprising an inlet (P2); and a fastening member (2, 2) for fastening the dispensing member (P) onto the neck (R2); a dip tube (D) that is connected to the inlet (P2) of the dispensing member (P) and extends into the reservoir (R); the dispenser being characterised in that the dip tube (D) is secured to the fluid product reservoir (R) by means of a support (1) that forms at least one filling window (15) communicating directly with the inside of the fluid product reservoir (R), the fastening member (2, 3) enabling withdrawal of the dispensing member (P), thus providing access to the support (1) in order to fill the fluid product reservoir (R) through said at least one filling window (15).

Abstract: A fluid product dispenser having a vessel and provided with a neck forming at least one helical thread, and a dispensing head mounted on the neck of the vessel, the head having a dispensing member and a fastening member engaging both with the threaded neck and the dispensing member The fastening member has a deformable and malleable skirt intended to engage with the threaded neck, and a rigid collar engaged around the skirt to push the skirt radially against the threaded neck in such a way as to deform the skirt against the thread so as to create a thread imprint in the skirt. The helical thread has an intermediate portion that has, on at least some of its length, a cross-section that decreases in the unscrewing direction and increases in the screwing direction, such that the unscrewing torque decreases and the rescrewing torque increases.

Abstract: A fluid dispenser head for mounting on a dispenser member, such as a pump, and including a bearing surface for actuating the dispenser member, and a spray wall that is perforated with a network of holes through which the fluid under pressure passes so as to be sprayed in small droplets, the dispenser head being characterized in that it further includes a suction chamber of volume that is variable, such that the volume of the suction chamber decreases when pressure is exerted on the bearing surface and increases when the pressure on the bearing surface is relaxed.

Abstract: A fluid spray head comprising: a body (1) forming a housing (14) in which there extends a core (16); a nozzle (2) engaged in the housing (14) around the core (16), and forming a spray orifice (0) presenting a chamber outlet diameter D3 and a chamber outlet section S3; the core (16) and the nozzle (2) defining between them, from upstream to downstream: a plurality of swirl channels (T) presenting a channel length L1; and a swirl chamber (C) presenting a chamber inlet diameter D2, and a chamber inlet section S2, the dispenser orifice (O) forming an outlet for the swirl chamber (C); the spray head being characterized in that 30% of S2?S3?55% of S2, and preferably S3 is equal to approximately 42% of S2.

Abstract: A fluid dispenser head including a spray wall (1) that defines a central axis (X) and that is perforated with holes (O1, O2) through which the fluid under pressure passes so as to form jets of fluid, the holes (O1, O2) extend along axes (Y1, Y2) that correspond to the path of the jets of fluid; the dispenser head being characterized in that at least some of the axes (Y1, Y2) intersect, such that the jets of fluid that extend along the intersecting axes (Y1, Y2) meet at at least one collision point (P).

Abstract: A fluid dispenser head for mounting on a dispenser member, such as a pump, and including a bearing surface for actuating the dispenser member, and a spray wall that is perforated with a network of holes through which the fluid under pressure passes so as to be sprayed in small droplets, the dispenser head being characterized in that it further includes a suction chamber of volume that is variable, such that the volume of the suction chamber decreases when pressure is exerted on the bearing surface and increases when the pressure on the bearing surface is relaxed.

Abstract: A fluid spray head comprising: a body (1) forming a housing (14) in which there extends a core (16); a nozzle (2) engaged in the housing (14) around the core (16), and forming a spray orifice (O) presenting a chamber outlet diameter D3 and a chamber outlet section S3; the core (16) and the nozzle (2) defining between them, from upstream to downstream: a plurality of swirl channels (T) presenting a channel length L1; and a swirl chamber (C) presenting a chamber inlet diameter D2, and a chamber inlet section S2, the dispenser orifice (O) forming an outlet for the swirl chamber (C); the spray head being characterized in that L1?110% of D2, and preferably L1 is equal to approximately 150% of D2.

Abstract: A manual pump (P) having a pump body (B) defining a slide cylinder (F) for a piston (K) secured to an actuator rod (S); a pump chamber (C) and an outlet valve (V) arranged between the pump chamber (C) and a dispenser orifice (O) so as to dispense the fluid from the pump chamber (C). The pump includes an inlet valve (2, 12) arranged between the pump chamber (C) and an inlet (I) of the pump (P) to take the fluid into the pump chamber (C) from the reservoir (R), the inlet valve having a movable member (2) that selectively bears against a valve seat (12), a return passage (23) enabling a fraction of the fluid that is put under pressure in the pump chamber (C) to escape therefrom without passing via the outlet valve (V). The return passage (23) creates a lack of sealing at the inlet valve.

Abstract: A fluid dispenser member, such as a pump, having a body (11) for mounting in the opening of a fluid reservoir so as to take fluid therefrom. The body (11) has a fluid chamber (15) that defines a fluid inlet in the form of a socket (12). The dispenser member includes a dip tube (2) for extending into the fluid reservoir so as to take fluid therefrom, the dispenser member further having a reducer sleeve (3) that internally receives an end (21) of the dip tube (2), and that is engaged axially in the socket (12) of the body (11), such that fluid communication is established between the dip tube (2) and the chamber (15) of the body (11). The dip tube (2) presents an outside diameter less than 1 mm and is made of a material that is transparent or translucent.

Abstract: A fluid dispenser having a fluid reservoir, a fluid suction chamber of variable volume that defines an extraction and application space; a dip tube that connects the reservoir to the chamber at an injection orifice that defines an injection axis; and a suction mechanism for sucking, during a suction stage, fluid from the reservoir into the chamber through the injection orifice. The injection orifice is situated a little way inside or outside the extraction and application space, such that the fluid is injected in the form of an axial jet into the extraction and application space and fills it, at least in part, without the injection orifice penetrating into the space.

Abstract: A manual pump (P) having a pump body (B) defining a slide cylinder (F) for a piston (K) secured to an actuator rod (S); a pump chamber (C) and an outlet valve (V) arranged between the pump chamber (C) and a dispenser orifice (O) so as to dispense the fluid from the pump chamber (C). The pump includes an inlet valve (2, 12) arranged between the pump chamber (C) and an inlet (I) of the pump (P) to take the fluid into the pump chamber (C) from the reservoir (R), the inlet valve having a movable member (2) that selectively bears against a valve seat (12), a return passage (23) enabling a fraction of the fluid that is put under pressure in the pump chamber (C) to escape therefrom without passing via the outlet valve (V). The return passage (23) creates a lack of sealing at the inlet valve.

Abstract: A fluid dispenser member, such as a pump, comprising a body (11) for mounting in the opening of a fluid reservoir so as to take fluid therefrom, the body (11) comprising a fluid chamber (15) that defines a fluid inlet in the form of a socket (12), the dispenser member including a dip tube (2) for extending into the fluid reservoir so as to take fluid therefrom, the dispenser member further comprising a reducer sleeve (3) that internally receives an end (21) of the dip tube (2), and that is engaged axially in the socket (12) of the body (11), such that fluid communication is established between the dip tube (2) and the chamber (15) of the body (11); the dispenser member being characterized in that the dip tube (2) presents an outside diameter that is less than 1 mm, and in that the dip tube (2) is made of a material that is transparent or translucent.

Abstract: A fluid dispenser having a fluid reservoir, a fluid suction chamber of variable volume that defines an extraction and application space; a dip tube that connects the reservoir to the chamber at an injection orifice that defines an injection axis; and a suction mechanism for sucking, during a suction stage, fluid from the reservoir into the chamber through the injection orifice. The injection orifice is situated a little way inside or outside the extraction and application space, such that the fluid is injected in the form of an axial jet into the extraction and application space and fills it, at least in part, without the injection orifice penetrating into the space.

Abstract: A fluid dispenser having a fluid reservoir, a fluid suction chamber of variable volume that defines an extraction and application space; a dip tube that connects the reservoir to the chamber at an injection orifice that defines an injection axis; and a suction mechanism for sucking, during a suction stage, fluid from the reservoir into the chamber through the injection orifice. The injection orifice is situated a little way inside or outside the extraction and application space, such that the fluid is injected in the form of an axial jet into the extraction and application space and fills it, at least in part, without the injection orifice penetrating into the space.

Abstract: A fluid dispenser member, including a chamber and an outlet valve having an actuator rod that is axially movable down and up, and on which a sleeve slides, under the effect of a pre-compression spring and the pressure of the fluid, over a maximum axial stroke. The effective axial stroke of the sleeve is dependent on the force of the spring and the pressure of the fluid in the chamber. The actuator rod includes side outlet mechanism that is suitable for being closed and uncovered selectively by the sleeve, the side outlet mechanism extending over an axial height that is greater than their radial width.

Abstract: A fluid dispenser including a fluid reservoir containing fluid; a fluid suction chamber of variable volume including an extraction and application space that varies between a minimum volume and a maximum volume; a dip tube that connects the reservoir to the suction chamber at an orifice; a suction mechanism for sucking, during a suction stage, fluid from the reservoir into the chamber through the orifice; and an extractor and applicator member that defines, in part, the suction chamber and the suction mechanism, and further the extraction and application space; wherein the sliding of the slidable sleeve over the stationary stem does not involve any resilient driving force.

Abstract: A fluid dispenser member, including a chamber and an outlet valve having an actuator rod that is axially movable down and up, and on which a sleeve slides, under the effect of a pre-compression spring and the pressure of the fluid, over a maximum axial stroke. The effective axial stroke of the sleeve is dependent on the force of the spring and the pressure of the fluid in the chamber. The actuator rod includes side outlet mechanism that is suitable for being closed and uncovered selectively by the sleeve, the side outlet mechansim extending over an axial height that is greater than their radial width.

Abstract: A fluid dispenser including a fluid reservoir containing fluid; a fluid suction chamber of variable volume comprising an extraction and application space that that varies between a minimum volume and a maximum volume; a dip tube that connects the reservoir to the suction chamber at an orifice; suction means for sucking, during a suction stage, fluid from the reservoir into the chamber through the orifice; and an extractor and applicator member that defines, in part, the suction chamber and the suction means, and further the extraction and application space; wherein the sliding of the slidable sleeve over the stationary stem does not involve any resilient driving force.