Abstract: A hand-operated pump for fluid distribution comprising a pump body defining a pump chamber, a hollow control rod traveling in the pump body between a rest position and a depressed, lower position, a free floating piston assembled in a sliding manner on the control rod, the piston and the rod serving to define an outlet valve, characterized in that the outlet valve exhibits a cylindrical tight sealing contact adapted to open by sliding the piston towards the top on the rod at a determined height and the rod includes a surface engaged by the piston and widening in a vertical direction towards the top.

Abstract: A hand-operated pump for fluid distribution comprising a pump body defining a pump chamber, a hollow control rod traveling in the pump body between a rest position and a depressed, lower position, a free floating piston assembled in a sliding manner on the control rod, the piston and the rod serving to define an outlet valve, characterized in that the outlet valve exhibits a cylindrical tight sealing contact adapted to open by sliding the piston towards the top on the rod at a determined height and the rod includes a surface engaged by the piston and widening in a vertical direction towards the top.

Abstract: A device for fixing a dispenser member such as a pump on the neck of a receptacle containing a substance to be dispensed, the device being characterized in that it has a single fixing element made of a deformable material and disposed in the neck of the receptacle between the inside surface of the receptacle neck and the outside surface of the body of the dispenser member, the fixing element being, in the assembled state of the fixing device, deformed and/or compressed by the body of the dispenser member being engaged in the neck of the receptacle in such a manner that it exerts a radial force on the body of the dispenser member and on the neck of the receptacle, the radial force providing reliable and leakproof fixing of the dispenser member to the neck of the receptacle.

Abstract: The invention includes a device for dispensing in atomized powder form a single dose of a fluid product. A fluid product container contains a single dose and is connected to an atomizing orifice. At least one gas container is connected to the orifice. A means is provided for simultaneously emptying the fluid product container and the gas container so as to cause a biphasic atomization of the fluid product with the gas at the atomizing orifice.

Abstract: A hand-operated pump for fluid distribution comprising a pump body defining a pump chamber, a hollow control rod traveling in the pump body between a rest position and a depressed, lower position, a free floating piston assembled in a sliding manner on the control rod, the piston and the rod serving to define an outlet valve, characterized in that the outlet valve exhibits a cylindrical tight sealing contact adapted to open by sliding the piston towards the top on the rod at a determined height and the rod includes a surface engaged by the piston and widening in a vertical direction towards the top.

Abstract: A device for fixing a metering member having a body, such as a pump, in the neck of a receptacle containing a substance to be dispensed, the body of the metering member having a smaller-diameter portion and a larger-diameter portion the maximum outside diameter of the body being smaller than the inside diameter of the neck the device being characterized in that the housing is formed in the neck of the receptacle, the housing being suitable for receiving a deformable member which, in the assembled state of the fixing device, is deformed and/or compressed in such a manner that it exerts a radial force on the neck and on the body, the force serving to fix the metering member in sealed manner in the neck of the receptacle, the deformable member being placed, prior to assembly, on the smaller-diameter portion and being deformed and/or compressed in the housing during assembly by the larger-diameter portion of the body of the metering member.

Abstract: The invention proposes an inlet valve assembly integrated in apparatus for dispensing a fluid contained in a tank, the valve assembly serving to isolate said tank at least during a dispensing stage during which said fluid is dispensed, said valve assembly comprising a valve member (2) having a contact zone coming into sealed contact with a substantially frustoconical valve seat (16) at least during said dispensing stage, the contact zone of the valve member (2) being part of a substantially frustoconical surface (210), said inlet valve assembly being characterized in that the solid angle of the surface (210) is greater than that defined by the valve seat (16) so that the contact zone is at least initially defined by a circle when the valve member is at rest, and in that the frustoconical surface (210) is formed by a substantially flexible wall, so that the initially circular contact zone extends to form a truncated cone by resilient deformation during the dispensing stage.

Abstract: A spray nozzle mountable on the outlet (3) of a fluid dispensing device for dividing a fluid into fine droplets. The nozzle includes a core (11) and an atomizer (2) together defining a vortex chamber (14, 24) communicating with the outside via a spray port (21) in the atomizer (2), and a number of vortex channels (15, 16) opening non-radially into the vortex chamber (14, 24). The atomizer (2) has an oblong shape with a longitudinal major axis lying in a horizontal plane. The vortex channels (15, 16) preferably communicate with the outlet (3) of the spray device via two symmetrical feed ducts (12, 13) extending on either side of the core (11) and lying in a horizontal plane.

Abstract: A fixing ring is provided for fixing a dispenser member on a neck of a receptacle containing a substance to be dispensed. The fixing ring includes a fixing structure for being fixed to the neck and includes a through opening for the top end of the dispenser member. The top end of the dispenser member is adapted to receive an actuator member, and includes an outlet opening for the substance. The fixing ring further includes (1) a first indexing structure cooperating with a first indexing member provided on the neck of the receptacle to fix the angular position of the ring relative to the neck, and (2) a second indexing structure cooperating with a second indexing member on the actuator member to fix the angular position of the actuator member relative to the ring, such that the angular position of the outlet opening of the actuator member is fixed relative to the receptacle.

Abstract: A nozzle for spraying a fluid comprises an outlet duct (3, 4) opening out into a swirling chamber (5) in the center of an annular surface (10), the chamber being closed by an end wall (6) which is pierced by an outlet orifice (7) and which includes an inside face (6a) provided with swirling grooves (80. The swirling chamber (50 is partially filled by a core (9), the core leaving at least one lateral passage (11) empty, putting the swirling groove into communication with the outlet duct. The spray nozzle also includes a valve adapted to close the outlet duct.

Abstract: A metering pump for dispensing a predetermined volume of a liquid or semi-liquid fluid includes a pump body 1, a differential piston 51,52, and a turret 6 secured to a container cap 61. The pump body has a bottom end in communication with the container and a top end 11 capable of being fixed in a desired axial position on the turret. The piston is mounted for fluid-tight sliding in the pump body and has a rest position in which it defines a pump chamber 3, the piston being urged by a return spring 7 towards the turret. The top end 11 of the pump body is axially adjustable within the turret to vary the volume of the pump chamber, and includes integral barb projections 111 that bite into the softer turret material.

Abstract: A dispenser pump 1 is mounted on a liquid receptacle 2, in which the liquid 3 forms a free surface 4. A liquid retention member 6 communicates with a pump inlet orifice 5 and with the receptacle, and is adapted to receive a certain volume of liquid 15 when the device is shaken or tilted relative to an upright position in which the pump is at the top of the receptacle, and to retain the liquid volume in communication with the inlet orifice of the pump when the device is back in the upright position.

Abstract: A closure system for a receptacle having a neck in which an opening is formed and provided with outwardly projecting external threads each extending between a first end further from the opening and a second end closer to the opening, the system comprising a cap having a side wall that surrounds the neck and that fits substantially snugly over the shape of the external threads thereof. The cap is made of a material that is elastically deformable, and at least some of the threads of the neck are spaced apart in pairs by a circumferential distance around the neck that decreases progressively between the first and second ends of the threads.

Abstract: A fluid dispenser comprising a pump (10) having no air intake and mounted in sealed manner on a deformable tank (20), and an outer envelope (30) that surrounds the deformable tank (20) and that retains a shape suitable for being held in the hand throughout the time that the dispenser is in use, the outer envelope (30) defining an inner volume that communicates with the atmosphere via at least one air passage (34, 35, 36), the deformable tank being a flexible tube (20) that extends between a first end (20a) that is closed by pinching to form a bottom (33, 33b) and a second end (20b) that is secured to the pump (10), characterized in that the outer envelope is a flexible tube extending between a first end (30a) close to the bottom (33, 33b) of the tank, and a second end (30b) in mechanical connection with the second end of the deformable tank (20), the first end (30a) of the outer envelope being closed by pinching.

Abstract: A fluid substance dispenser includes a pump mounted on a stopper 20 designed to be fixed on a neck of a receptacle. The pump includes a body 1, a piston 2 that slides axially inside the pump body, a return spring 10 that urges the piston towards the open end of the body, and a single piece ferrule 11 fixed in the open end of the pump body to limit motion of the piston towards the second end. The ferrule has a flange 11a which extends radially outwards, and is engaged as a force-fit inside an internal passage 28 of the stopper to hold the pump in the stopper, preventing the pump body from moving towards the outside of the receptacle. The ferrule is made of a harder plastics material than the stopper so that the radial flange bites into the stopper.

Abstract: A device for containing a liquid or a paste for dispensing without ingress of air comprises a flexible container containing the substance to be dispensed and a carrier 20. The container is inserted inside the carrier, and the container is constituted by a peripheral side wall 4 extending between a bottom 3 and a top having a bottleneck 2 opening out therethrough. The carrier provided with at least two facing longitudinal ribs 21, the ribs constraining the side wall, the bottom, and the top of the container to fold concertina-like.

Abstract: A device for spraying or dispensing a fluid and adapted to be mounted on a fluid tank 30 includes a body 1, an actuator member 3 slidably mounted relative to the body, an inlet passage 14 communicating with the tank and enabling the fluid to enter into the body, and an elongate member 5, 25 slidably mounted in the inlet passage and penetrating into the tank. The elongate member is displaceable together with the actuator member towards the tank on the first occasion that the actuator member is actuated, and the elongate member exerts mechanical action on an element 33, 42 secured to the tank when it is displaced, and in such a manner as to puncture or dislodge the element.

Abstract: A pushbutton for actuating a device for dispensing or spraying a fluid substance includes a hollow body 1 having an outlet end 2 in which an outlet orifice 3 is formed, the outlet end including an inside surface 2a which is not perpendicular to the axis 1a of the body. An adjustment member 10 is rotatably received in the body of the pushbutton, and includes a shutter 19 provided with a front surface 19a that is complementary in shape to the inside surface of the outlet end. The shutter is urged towards the outlet end by a resilient tongue 18. The rotation of the adjustment member and shutter varies the outlet flow rate from the pushbutton.

Abstract: A manual precompression pump for spraying or dispensing a fluid substance contained in a receptacle, said pump having a pump body (1) in which a hollow piston (2) slides the piston being extended by a hollow rod (3) including the seat (7a) for a closure valve member (6) urged towards said hollow rod by a spring (10), said spring pushing the valve member (6) and the piston (2) towards a rest position, said pump including a pump chamber (12) which is in communication with the receptacle when the valve member and the piston are in their rest positions, said pump chamber (12) being capable of being isolated from the receptacle by sealed interfitting of a first cylinder (8) integral with the valve member (6) and of a second cylinder (4) integral with the pump body, said pump being characterized in that a valve rod (7b) extends the valve member (6) through the hollow rod (3) to a distance H1 beyond the outside end of the hollow rod, and in that starting from the rest position of the valve member, the cylinder (8) i

Abstract: A device for dispensing of small volume comprises a pump associated with a container of the substance to be dispensed, the pump comprising: a hollow pump body; and a piston sliding inside said pump body in sealing contact with the pump body around a circular periphery of diameter D2; wherein the pump further includes: a push rod including a central channel in which a valve seat is formed, the push rod sliding in contact with the pump body around a circular periphery of diameter D1 less than D2; a punch secured to the piston and capable of bearing in sealed manner against the valve seat; and resilient means urging the piston against the valve seat.