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 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:
A fluid dispenser device comprising: a fluid dispenser orifice (31); an air duct (32, 51, 52) for air under pressure, said air duct including an upstream end and a downstream end that opens out in the proximity of the orifice (31); an air expeller (4) that is suitable for being subjected to elastic squeezing and relaxation stages, the air expeller (4) being connected to the air duct (32, 51, 52) so that, during elastic squeezing stages, it delivers a flow of air through the air duct until it reaches the orifice (31); and a fluid channel (25, 33) that is connected to the air duct (32, 51, 52), the fluid in the channel (25, 33) being sucked up by the flow of air under pressure by the Venturi effect; the device being characterized in that the air expeller (4) has only a single opening (43) that is provided with a connection sleeve (5) that includes an incoming-air passage (53) that is provided with an air-inlet valve (56; 56b; 56c; 56d) that is suitable for allowing outside air to enter into the air expeller during elastic relaxation stages.
Abstract:
A fluid dispenser head having a fluid duct (73, 61) and a dispenser orifice (83) from which the user can draw the dispensed fluid. The head including a closure mechanism for selectively closing the dispenser orifice (83). The closure mechanism has a closure member (93) that is displaceable between a closed position and an open position. The head also includes 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), and a displacement mechanism (69; 69′) that displaces 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 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 final assembled position relative to the fastener means (23), so as to enable the hoop to block the ring (2) on the neck (11).
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:
The invention concerns a fluid product dispenser comprising a gas reservoir (10), a fluid product reservoir (20), a dispensing head comprising at least one dispensing orifice (30). The gas reservoir and the fluid product reservoir are connected to the head so that their contents can communicate with the at least one dispensing orifice. The dispenser comprises a movable actuation wall (14; 24) to simultaneously generate a pressure state in the gas and fluid product reservoirs and thus force the fluid product and the gas through the the at least one dispensing orifice.
Abstract:
A dispensing device for liquid, fluid or pasty products. A support in an opening of a receptacle encloses the product. The support has a central tubular conduit, a pushbutton axially slidably mounted on the support between a rest position and an active position and a product outlet conduit. An intermediate piece of a resiliently deformable material is between the support and the pushbutton. The intermediate piece and the pushbutton define a measured quantity chamber for the product. The intermediate piece has an opening for communication between the tubular conduit of the support and the measured quantity chamber, and sealingly bears against at least one opening for passage between the measured quantity chamber and the outlet conduit of the pushbutton.
Abstract:
An apparatus and method for storing and mixing components for forming a product and dispensing the resultant product. The apparatus comprises a dispensing head, a first cartridge for storing a first fluid component, and a second cartridge for storing a second fluid component. The first cartridge and the second cartridge each have a first open end and a second closed end. A first distributor provides fluid communication between the first cartridge and the dispensing head, and a second distributor provides fluid communication between the second cartridge and the dispensing head. Both the first and second distributors have a preselected effective stroke distance. A compensating assembly is also provided. A housing maintains the dispensing head, first cartridge, second cartridge, first distributor, second distributor, and compensating assembly in operative relation with each other. Upon movement of the dispensing head and housing toward each other, the compensating assembly will yield to reduce the stroke of the first distributor. Thus, the firt component and the second component are mixed in a preselected proportion within the dispensing head to form a resultant product and the product is subsequently discharged from the dispensing head.