Abstract: A fluid dispenser pump comprising a pump body (1) in which a piston (2) connected to an actuating rod (10) is slidably mounted in leaktight manner, said actuating rod (10) being mounted to slide inside an element (4), such as a ferrule, which is secured to the pump body (1), said fluid dispenser pump being characterized in that said actuating rod (10) includes a flexible outer tubular portion (11) that is in leaktight contact with said element (4), and a rigid inner tubular portion (12) that is concentric with said flexible outer tubular portion (11), the zone of contact between the inside of the ferrule (4) and the actuating rod (10) being leaktight regardless of the position of said actuating rod (10).

Abstract: Dispensing device for a fluid product including a product tank (10) comprising a neck (11) defining an internal wall (12) and a pump (20), fixed to said neck (11) of tank (10), wherein the device includes air venting and a filter (30) for venting air, characterized in that said pump (20) includes a fixing portion (22, 25) which is fixed on the internal wall (12) of said neck (11) of tank (10), wherein said filter (30) is fixed on said fixing means (22, 25).

Abstract: A dispensing pump for a fluid product, including a pump body (10) in which at least one piston (20, 30) slides, wherein a pump chamber (40) is defined between an input valve (50) and an output valve (60), and said pump body (10) extends towards the inside of a tank (2) through a plunger tube (70) said input valve (50) being sealably connected to said plunger tube (70), the pump comprising a return spring (5) which brings said pump back towards its rest position, characterized in that said spring is positioned out of any contact with the fluid product.

Abstract: A fluid dispenser device has a fluid reservoir (10) and a dispensing member (20), such as a pump, actuated by an actuating rod (5) that is connected to a dispenser head (30) to dispense fluid selectively. The dispensing member is fixed to the reservoir by a fixing element (40), the dispenser device being provided with an air vent (50) situated outside the reservoir and outside the fixing element, an air filter element (60, 75) being disposed in the vicinity of the air vent, outside the fixing element, and the filter element being held on or in the vicinity of the air vent by an outer member (70) fixed to the fixing element and/or to the reservoir. The outer member has a fixing portion (71) which is fixed to the fixing element of the dispenser device, and a flexible membrane portion connected in leaktight manner to the actuating rod and/or to a piece (35) of the dispenser head.

Abstract: A pre-compression pump for dispensing metered quantities of fluid, said pump including a piston (1) secured to or integral with an actuating rod (2) and slidably-received in a pump body (3) including a pump chamber (10) defined between an inlet valve (11) and an outlet valve (12), said pre-compression pump being characterized in that, when the pump is actuated, said outlet valve (12) is urged towards its closed position by the pressure of the fluid contained in the pump chamber (10), and in that, at the end of the actuating stroke of the pump, a lever element (30) moves said outlet valve (12) towards its open position to enable the fluid contained in the pump chamber (10) to be expelled.

Abstract: The invention relates to a spray head (100) for a fluid dispenser for dispensing a fluid, the spray head being provided with an expulsion channel (1) opening out in a spray orifice (9), and with a moving closure member (10) mounted to move between a closed position, in which it closes said orifice (9), and a spray position, said closure member (10) being urged resiliently towards its closed position, and being displaced towards its spray position by the pressure of the fluid, the spray head being provided with a swirl chamber (20) of variable volume, the volume of said swirl chamber (20) being at its maximum when the closure member (10) is in the spray position, and being substantially zero when said closure member is in the closed position, said spray head being characterized in that said closure member (10) is provided with the spray orifice (9) and with swirl channels (30) which, when the closure member is in the spray position, connect said expulsion channel (1) to said swirl chamber (20), the volume and

Abstract: A dispenser device for dispensing a single dose of liquid, the device comprising: a cylinder (4) containing said dose of liquid; a piston (10) which slides in sealed manner in said cylinder (4) between a storage position in which it isolates said cylinder and an actuated position; a piston actuator member (3); and an outlet passage (5) for connecting said cylinder (4) to an outlet orifice (6); the device being characterized in that said piston (10) includes a through-passage (11) which is closed in sealed manner in the storage position of the piston (10) by a closure member (20), said closure member being designed to open said through-passage (11) under the effect of a predetermined pressure which is created inside the cylinder (4), so as to enable said dose of liquid to be expelled through said through-passage (11).

Abstract: A compressed gas device is disclosed for spraying a single dose of a fluid substance in finely divided form. The device comprises a tank containing the single dose having an inlet orifice for compressed gas, and an outlet orifice. The device further comprises a manually actuated gas pump having a gas supply communicating with the inlet orifice of the tank via an intermediate channel. The intermediate channel has a length of narrowed section that is closed in a sealed manner by a plug which is held in the narrowed section so that when the pressure of the gas supplied by the pump reaches a predetermined threshold, the plug is expelled towards the tank to open the intermediate channel. The device includes an abutment element to limit the displacement of the plug towards the outlet orifice of the tank of substance. The abutment element is constructed to guarantee that the compressed air can continue to floe through the outlet orifice when the plug is in its abutment position.