Abstract: A fluid dispenser having a reservoir (R) containing fluid (P) and air (A), the reservoir (R) forming an assembly opening (11); a fluid dispenser cannula (12) in communication with the reservoir (R); and an actuator member (2) engaged in the assembly opening (11), for supplying the dispenser cannula (13) with fluid (P). The actuator member (2) has a deformable membrane (23) that defines an outside face (231) forming a pusher (24), and an inside face (232) that is in contact with the air (A) of the reservoir (R), when the dispenser cannula (12) is in contact with the fluid (P) of the reservoir (R).

Abstract: Fluid product dispenser comprising: a reservoir (R) having a neck (1), a dispensing head (T) mounted axially on the neck (1) and comprising a dispensing member (P), and a fastening ring (F) engaging both the neck (1) and the dispensing member (P), the fastening ring (F) comprising a skirt (2) including a plurality of internal latching projections (211), characterised in that the neck (1) defines externally a plurality of horizontal latching shoulders (130) oriented downward and a plurality of release ramps (112), the latching projections (211), initially engaged below the horizontal latching shoulders (130), being constrained radially outward on the release ramps (112) by rotation of the skirt (2) around the neck (1), thus releasing the latching projections (211) of their latching engagement from below the latching shoulders (130).

Abstract: A fluid product dispenser comprising: a reservoir (R) having a neck (1) defining at least one horizontal latching shoulder (1), a dispensing head (T) mounted on the neck (1) and comprising a dispensing member (P), and a fastening ring (F) engaging both the neck (1) and the dispensing member (P), the fastening ring (F) comprising a skirt (2) comprising at least one internal latching projection (21) that is received below said at least one horizontal latching shoulder (121), characterised in that said at least one horizontal latching shoulder (121) is formed on an oval base (11) of the neck (1) that has an oval outer wall (110) with a horizontal cross-section of generally oval shape, except at said at least one horizontal latching shoulder (121).

Abstract: A fluid dispenser having a reservoir (R) containing fluid (P) and air (A), the reservoir (R) forming an assembly opening (11); a fluid dispenser cannula (12) in communication with the reservoir (R); and an actuator member (2) engaged in the assembly opening (11), for supplying the dispenser cannula (13) with fluid (P). The actuator member (2) has a deformable membrane (23) that defines an outside face (231) forming a pusher (24), and an inside face (232) that is in contact with the air (A) of the reservoir (R), when the dispenser cannula (12) is in contact with the fluid (P) of the reservoir (R).

Abstract: A fluid dispenser comprising: a fluid reservoir (1) including an opening (11); and a dispenser head (2) including a fastener ring (33) for coming into engagement with the opening (11); the ring (33) and the opening (11) forming leaktight final assembly means (12, 34), making it possible to fasten the dispenser head (2) in a final assembled position, in stable and leaktight manner in the opening (11) of the reservoir; said dispenser being characterized in that the ring (33) and the opening (11) further form provisional pre-assembly means (13, 34) making it possible to fasten the dispenser head (2) in a provisional pre-assembled position, in provisional and non-leaktight manner in the opening of the reservoir.

Abstract: A fastener member (1) for fastening a dispenser member (4) on a fluid reservoir, the fastener member (1) having a fastener ring (2) and a covering hoop (3). The fastener ring (2) includes a reception device that receives the dispenser member (4), and a fastener device that fastens on the reservoir, the covering hoop (3) being mounted by axial engagement around the ring (2) in such a manner as to mask it at least in part. The hoop (3) includes a hook co-operating with a retention device (225) formed by the ring (2), the hook (35) prevents the hoop (3) from rotating around the ring (2) and preventing the hoop (3) from moving in axial translation. The retention device formed by the ring (2) includes a retention housing (225) that co-operates with the hook. The hook includes at least one barb profile (352) adapted to bite into the housing.

Abstract: A fastener member (1) for fastening a dispenser member (4), such as a pump or a valve, on a fluid reservoir, said fastener member (1) comprising a fastener ring (2) and a covering hoop (3), the fastener ring (2) including reception means (24) for receiving the dispenser member (4), and fastener means (211) for fastening on the reservoir, the covering hoop (3) being mounted by axial engagement around the ring (2) in such a manner as to mask it at least in part, the hoop (3) including hook means (35) co-operating with retention means (225) formed by the ring (2), said hook means (35) include means (351, 352) for preventing the hoop (3) from rotating around the ring (2) and means (352) for preventing the hoop (3) from moving in axial translation, and thereby becoming axially disengaged from the ring (2), the retention means formed by the ring (2) including at least one retention housing (225) that is accessible by axial engagement, said means for preventing both turning and movement in translation co-operating w

Abstract: A dispenser device without any air intake, such as an airless pump, for dispensing a fluid substance, the device comprising a dispensing chamber (14) of variable volume, which chamber is provided with an inlet (12) equipped with an inlet valve member (51, 53), and is provided with an outlet equipped with an outlet valve member, the dispenser further comprising a piston (3) for causing the volume of the dispensing chamber (14) to vary, closure elements (51; 52; 55; 63) being provided to close off the dispensing chamber (14) in airtight manner, substantially at its inlet (12), prior to it being used for the first time, the device being characterized in that the closure elements are formed by the inlet valve member (51, 53).

Abstract: A pump for dispensing or spraying a fluid product comprises a pump body delimiting a pump chamber in which slides a piston. The pump comprises a hollow plunger-rod having an outlet passage. The plunger-rod is coupled to the piston to actuate the piston and to enable escape of the product. The pump further comprises an aspiration chamber which communicates with the hollow plunger-rod and which is reduced in volume when the plunger-rod is depressed and increased in volume when pressure is removed from the plunger-rod. The aspiration chamber is delimited by the piston and the plunger-rod and the volume of the chamber is varied by relative sliding movement between the plunger-rod and the piston.