Abstract: A fastener device for fastening a dispenser member (4) on a neck (11) of a fluid reservoir (1), the device comprising: a fastener ring (2) including both reception means (21) for receiving the dispenser member (4), and fastener means (23) for coming into engagement around the neck (11) of the reservoir (1); and a blocking hoop (3) that is engaged around the ring (2) and that is movable axially relative to the ring between a provisional pre-assembled position and a final assembled position, the hoop (3) being engaged around the fastener means (23) of the ring so as to block them around the neck (11) in the final assembled position; the fastener device being characterized in that the hoop (3) includes a clearance section (32) that, in the provisional pre-assembled position, is disposed around the fastener means (23), but with an intermediate clearance gap (E) separating them, so as to enable the fastener means (23) to move radially outwards without being hindered by the hoop (3), and is offset axially in the fi

Abstract: A fastener device (1, 2) for fastening a dispenser member (4) on a reservoir neck (51), the device comprising: a ring (1) forming an annular bearing collar (10) for coming to bear against the top (52) of the neck (51), with a gasket (3) possibly being interposed therebetween, and a skirt (11) including a free bottom end (145) and a deformable fastener section (13) that is deformed by thrust on the free end; and a hoop (2) that surrounds the skirt (11) of the ring (1) and constrains the fastener section (13) to deform inwards into contact with the neck (51); the device being characterized in that the deformable fastener section (13) is separated from the free end (145) by a substantially non-deformable bottom section (14) that is in engagement with the hoop (2).

Abstract: A method for packaging a fluid product dispenser, where the said dispenser includes a reservoir (1) of constant effective volume filled with a fluid product (10), and a dispensing device (3) that includes a dip tube (2) which is intended to extract the fluid product (10) contained in the reservoir on operation of the dispensing device (3), the reservoir (1) and the dip tube (2) being made from a material or materials that are substantially or perfectly transparent, where the said dip tube initially contains air (A), and the dip tube (2) is connected to the dispensing device and has one free end extending to the bottom of the reservoir, the method being characterised in that the air (A) is extracted from the dip tube (2) and is replaced by the fluid product.

Abstract: A fluid dispenser including a first fluid dispenser member associated with a first fluid reservoir, the first member including a first actuating rod mounted to move along a first rod axis between a rest position and an actuated position, and a second fluid dispenser member associated with a second fluid reservoir, the second member including a second actuating rod mounted move along a second rod axis between a rest position and an actuated position, the first rod having a free end pointing in a first direction and a second rod having a second free end pointing in a second direction, the two members being disposed one relative to the other with the first and second rod axes extending parallel and with the first direction being opposite to the second direction, so that one dispenser member is disposed upside down relative to the other dispenser member, the fluid dispenser being characterized in that at least one of the reservoirs is an “airless” reservoir, with its volume decreasing as fluid is extracted theref

Abstract: A fluid dispenser comprising: a fluid reservoir (10) of variable working volume, in which reservoir the fluid is protected from the air, the reservoir being provided with an actuator wall (25) that is axially movable down and up between a rest position and a depressed position, the movement of the wall causing the pressure in the reservoir to vary, the wall being situated at an end of the dispenser; and a dispenser orifice (150) via which the fluid is dispensed, the orifice being provided with an outlet valve (4); the dispenser being characterized in that the orifice (150) is situated at an end of the dispenser other than the end at which the actuator wall (25) is situated.

Abstract: A method of assembling a fluid dispenser comprising: a dispenser member (2), such as a pump, the member including an inlet tube (22; 61) in which there extends an inlet for admitting fluid into the dispenser member; a reservoir (10) for containing fluid, said reservoir comprising a cylinder (11; 11?) and a follower-piston (14) that is slidably mounted in said cylinder; and an annular dish (32; 32?) presenting an outer periphery (33) that is secured to the cylinder (11; 11?), and an inner periphery (321) defining an opening (20) of section that is small relative to the cylinder, the working volume of the reservoir (10) being defined between the dish (32; 32?) and the follower-piston (14) over a height of the cylinder, the method including the successive steps of: filling the reservoir (10) with fluid; and engaging the tube (22) in leaktight manner in the opening.

Abstract: A fluid dispenser comprising: a fluid reservoir (1) having a neck (11) defining an opening (10) and an axis X, the neck (11) projecting axially from a shoulder (13); and a dispenser unit (D) comprising a dispenser member (4), such as a pump or a valve, and a fastener system (2, 31) for fastening the dispenser member (4) on the neck (11) of the reservoir (1), the fastener system comprising a fastener ring (2) that is engaged with the neck (11) and a blocking hoop (31) that is engaged axially around the ring (2) for blocking the ring on the neck in the final assembled position; disassembly means (14, 34) for axially moving the hoop (31) relative to the ring (2), from the final assembled position to a disassembled position in which the hoop does not block the ring on the neck, such that the unit (D) can be removed from the neck (11), the disassembly means comprising two elements (14, 34) capable of turning mutually relative to each other about the axis X, the dispenser being characterized in that one element

Abstract: A fluid dispenser device comprising: a reservoir (R) of variable working volume comprising a sealing slide-cylinder (100) and a follower piston (2) that is in sliding sealing contact in said cylinder; dispenser means (3) that are suitable for putting the fluid stored in the reservoir under pressure in such a manner as to drive a fraction of the fluid through a dispenser orifice (37), and under suction in such a manner as to move the follower piston in the direction that decreases the working volume of the reservoir; and non-return means that are suitable for preventing any substantial movement of the follower piston in the direction that increases the working volume of the reservoir; in which device the non-return means include at least one chamber (C) of variable volume that is filled with fluid from the reservoir during the suction stage.

Abstract: A dispenser head for mounting on the actuator rod (43) of a fluid dispenser member (4), the rod being displaceable down and up along an axis (X), the head comprising a bearing surface (22) for displacing the head and for actuating the dispenser member, the head further comprising a dispenser endpiece (23) that internally defines an endpiece channel (25) that opens out to the outside at a dispenser orifice (26), said endpiece presenting an elongate configuration with a connection end connected to the remainder of the head and a free end (24), the dispenser orifice being situated in the proximity of the free end, the head being characterized in that the dispenser orifice is provided with internal closure means (16) that are suitable for selectively closing the dispenser orifice from the inside.

Abstract: A filling method for filling a reservoir (10) of variable working volume with a fluid, the method being characterized in that the reservoir (10) is firstly emptied of any content, such that its working volume is substantially zero, and the fluid is then injected into the reservoir, thereby increasing the working volume of the reservoir (10).

Abstract: The present invention relates to a fluid dispenser member comprising a body (1), a pusher (2) axially displaceable between a rest position and a depressed position, the pusher forming a fluid dispenser orifice (24), and a flexible part (3) connecting the body to the pusher. The part forms return spring means (35) urging the pusher towards the rest position. The part also forms the moving member (38) of an outlet valve. The part also comprises support means (33) engaged with the body, and anchor means (37) engaged with the pusher. The support means are surrounded by the anchor means. The part includes an elastically deformable portion (34) that extends between the support means and the anchor means. The elastically deformable portion (34) constitutes both the return spring means (35) and the outlet valve moving member (38).

Abstract: A fluid dispenser comprising: a fluid reservoir (10) serving to contain fluid; and a dispenser head (2) mounted on the reservoir (10) to take fluid from the reservoir, said head (2) defining a dispensing chamber (26) communicating with the reservoir via an inlet valve (25, 215) and communicating with the outside at a dispensing orifice via an outlet valve (237, 222); said dispenser being characterized in that the chamber (26) comprises at least one elastically deformable actuating wall (231) that is depressed in order to generate a pressure inside the chamber that is high enough to close the inlet valve and to open the outlet valve.

Abstract: A refill device for a receptacle provided with a threaded neck including a receptacle, designed to contain a product to be transferred into the receptacle, a cooperation structure designed to form a connection between the first and a second receptacle, a closing structure for closing off the receptacle, a transferring structure for transferring the product contained in the receptacle to the receptacle. The cooperation structure includes a threaded base capable of cooperating with the neck, the closing structure comprises a wall closing off the base, designed to be broken off by an axial force, the transfer structure includes an axial packing designed to be placed above the wall, such that during the said screwing of the neck, the neck pushes the axial packing into contact with the wall, so as to break the wall and enable the liquid to flow by gravity.

Abstract: A fluid dispenser head for mounting on an actuator rod (33) of a dispenser member (3) that is displaceable down and up along an axis (X), said head comprising an axial connection sleeve (11) for engaging on the actuator rod (33) and defining an inlet duct (113), said head further comprising a dispenser endpiece (24) defining an endpiece channel (142, 242) that is connected to the inlet duct (113) via a connection channel (132), said endpiece (24) including a free dispenser end (243) defining a dispenser orifice (241) that is situated at a downstream end of the endpiece channel, said head further comprising a bearing surface (231) on which axial pressure can be exerted so as to drive in the actuator rod (33), the dispenser head being characterized in that the endpiece (24) extends substantially parallel to said axis (X), and is offset away from the axis.

Abstract: A method of assembling a fluid dispenser comprising: a dispenser member (2), such as a pump, the member including an inlet tube (22; 61) in which there extends an inlet for admitting fluid into the dispenser member; a reservoir (10) for containing fluid, said reservoir comprising a cylinder (11; 11?) and a follower-piston (14) that is slidably mounted in said cylinder; and an annular dish (32; 32?) presenting an outer periphery (33) that is secured to the cylinder (11; 11?), and an inner periphery (321) defining an opening (20) of section that is small relative to the cylinder, the working volume of the reservoir (10) being defined between the dish (32; 32?) and the follower-piston (14) over a height of the cylinder, the method including the successive steps of: filling the reservoir (10) with fluid; and engaging the tube (22) in leaktight manner in the opening.

Abstract: The invention relates to a fluid product distribution body (1), comprising a fluid product distribution chamber (10) with a variable volume defined with an inlet valve (15, 115), by means of which the chamber (10) communicates with the reservoir (20), said valve comprising a seat (115) and a moving body (15), a piston (135) which may be displaced to vary the volume of the chamber (10), said piston (135) being held in the rest position by means of a return spring (131) and an outlet valve (131, 125), by means of which the fluid product escapes from the chamber (10), under pressure, to flow towards a distribution opening (127). Said valve comprises a valve seat (125) and a moving valve body (131) which may be displaced with a sealing effect when not in contact with said seat, the return spring means and the mobile valve body being formed by one and the same element (131) comprising a wall (130) in sealing contact with the seat (125), the seat (125) having an annular embodiment.

Abstract: A fluid dispenser head comprising a fluid duct ((73, 61) and a dispenser orifice (83) from which the user can draw the dispensed fluid, said head further comprising closure means (9; 9?) for selectively closing the dispenser orifice (83), said closure means comprising a closure member (93) that is displaceable between a closed position and an open position, the head further comprising a non-rotary portion (6) that is prevented from turning relative to the dispenser member (4), and a rotary portion (7, 8) that can be turned relative to the non-rotary portion (6), said head further comprising displacement means (69; 69?) that are capable of displacing the closure member (93; 93?) between the closed and open positions while the rotary portion (7, 8) is being turned relative to the non-rotary portion (6).

Abstract: A fluid dispenser comprising a first fluid dispenser member (1) associated with a first fluid reservoir (15), said first member comprising a first actuating rod (11) mounted to move along a first rod axis between a rest position and an actuated position, and a second fluid dispenser member (2) associated with a second fluid reservoir (25), said second member comprising a second actuating rod (21) mounted to move along a second rod axis between a rest position and an actuated position, the first rod (11) having a free end (111) pointing in a first direction and a second rod (21) having a second free end (211) pointing in a second direction, the two members being disposed one relative to the other with the first and second rod axes extending parallel and with the first direction being opposite to the second direction, so that one dispenser member is disposed upside down relative to the other dispenser member, said fluid dispenser being characterized in that at least one of the reservoirs is an “airless” reservo