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 fluid reservoir of variable working volume, at least one deformable wall defining an inside surface, and a dispenser orifice through which the fluid is dispensed while the working volume of the reservoir is being reduced by deforming the deformable wall, the dispenser further comprising a piston element that is in leaktight sliding contact with the inside surface of the deformable wall, said piston element comprising an upstream face that is not in contact with the fluid, and a downstream face that is in contact with the fluid and that forms a displaceable wall of the reservoir, said upstream face being separated from said downstream face by a zone that is in leaktight contact with the inside surface.
Abstract:
A fluid dispenser including: a flexible pouch (3) containing fluid and provided with an opening (31); a dispensing member (5) such as a pump for drawing off fluid contained in the flexible pouch through the opening; a shell (1) surrounding the pouch (3) and provided with an opening (13) that coincides with the opening (31) of the flexible pouch, the shell (1) being made in two portions (11, 12) connected together along a connection line (14) passing through the opening (13) in the shell so that each shell portion (111, 121) forms a portion of the opening in the shell; a pouch support (2) to which the opening (31) in the flexible pouch (3) is fixed, the support being held in position between the two shell portions (11, 12) at the opening (13) in the shell; and a fixing ring (4) for fixing the dispensing member; the dispenser being characterized in that the fixing ring comprises: a fixing band portion snap-fastened onto the pouch support; and a holding band portion engaged over the opening in the shell to hold the two shell portions together.
Abstract:
A set of components is provided for assembly as a dispensing package for a fluid product. A collapsible bag is provided for holding the fluid product. The collapsible bag is attached to a support which in turn is mounted within a hollow body. A retention member holds a finger-operable pump to the support for communication with the interior of the bag.
Abstract:
The stiffness of a flexible, substantially parallelepipedal container formed by shaping and welding a film which is made of a synthetic material and which is to enclose a liquid to be packaged, is improved by applying, before shaping, a second layer of a film formed of an identical or a different material, as a top film, to the surface of the film forming the container which does not subsequently come into contact with the liquid to be packaged. The top film includes a plurality of strips corresponding to the vertical surfaces of the final container which are welded to the film forming the container before shaping, along lines corresponding to the edges of the final parallelepipedal container.
Abstract:
A fluid dispenser comprising a fluid reservoir (1) and a dispenser member (2), the reservoir (1) comprising a slide cylinder (11) that is cylindrical, and a follower-piston (14) that includes at least one lip (16) that is in sliding contact with the cylinder (11), the slide cylinder (11) being provided with a bottom (12), an equalizing space (E) being formed between the follower-piston (14) and the bottom (12), this space (E) communicating with the outside so as to keep the space (E) at atmospheric pressure, such that, each time fluid is dispensed, outside air penetrates into the space (E), which increases as the follower-piston (14) moves away from the bottom (12); the dispenser being characterized in that a bacterial filter (F1) filters outside air coming into contact with the lip (16) of the follower-piston (11) through the equalizing space (E).
Abstract:
A fluid dispenser comprising a fluid reservoir (1) and a dispenser member (2), the reservoir (1) comprising a slide cylinder (11) that is cylindrical, and a follower-piston (14) that includes at least one lip (16) that is in sliding contact with the cylinder (11), the slide cylinder (11) being provided with a bottom (12), an equalizing space (E) being formed between the follower-piston (14) and the bottom (12), this space (E) communicating with the outside so as to keep the space (E) at atmospheric pressure, such that, each time fluid is dispensed, outside air penetrates into the space (E), which increases as the follower-piston (14) moves away from the bottom (12); the dispenser being characterized in that a bacterial filter (F1) filters outside air coming into contact with the lip (16) of the follower-piston (11) through the equalizing space (E).
Abstract:
A method of manufacturing a fluid reservoir (1) for associating with a dispenser member (4), such as a pump, so as to constitute a fluid dispenser, the reservoir (1) including an inside surface (12) that is circularly cylindrical and that defines a slide cylinder in which a follower piston (2) slides in leaktight manner, the reservoir (1) including an outside surface (13) of any shape that is spaced apart from the inside surface by a wall thickness (Emin) that varies, the method comprising molding the reservoir (1) in a mold with a melt of plastics material, the method being characterized in that the inside surface (12) is formed by a non-circularly-cylindrical molding pin, so as to take account of phenomena of material shrinkage after cooling, so as to obtain an inside surface (12) that is circularly cylindrical.
Abstract:
A dispenser head (1) for associating with a dispenser member, such as a pump or a valve, so as to form a fluid dispenser, the head including a connection sleeve (11) for connecting to an outlet (31) of the dispenser member, the sleeve (11) being connected to a fluid dispenser orifice (13, 13′) via an internal channel (12), the head being characterized in that it further includes a fluid collection dish (14) for collecting the fluid at the outlet from the dispenser orifice, the dish defining a bottom (141) that is situated below the dispenser orifice under normal conditions of use of the head, such that the fluid drops by gravity into the dish.
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.