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 refill device (1) for a receptacle (6) provided with a threaded neck (60) including: a) a receptacle (2), designed to contain a product to be transferred into the receptacle (6), b) a means (4) of cooperation designed to form a connection between the first (6) and second (2) receptacles, c) a means (3) of closing off the receptacle (2), d) a means (5) of transferring the product contained in the receptacle (2) to the receptacle (6). In this device: 1) the cooperation means (4) includes a threaded base (40) capable of cooperating with the neck (60), 2) the closing means (3) comprises a wall (30) closing off the base (40), designed to be broken off by an axial force, 3) the transfer means (5) includes an axial packing (50) designed to be placed above the wall (30), such that during the said screwing of the neck (60), the neck pushes the axial packing (50) into contact with the wall (31), so as to break the wall and enable the liquid to flow by gravity.
Abstract:
A pump comprising a support-forming assembly for securing to a receptacle containing a substance to be dispensed, a moving member co-operating with the support-forming assembly to define a pump chamber of variable volume, and an elastically deformable diaphragm secured to one of the support-forming assembly and the moving member, the diaphragm being arranged so as to deform elastically when the moving member is displaced relative to the support, the pump further comprising a suction valve-forming element arranged to oppose any return of substance towards the receptacle while the volume of the pump chamber is decreasing, and a delivery valve-forming element arranged to oppose any entry of air into the receptacle while the volume of the pump chamber is increasing. The delivery valve-forming element is made by means of a shutter-forming element that is separate from the diaphragm.
Abstract:
A method of making a pump dispenser using a container with a flexible bag for dispensing semi-liquid or creamy substances includes using a flexible bag within an outer rigid container, a bushing fitting in the mouth of the container and a flexible bag secured to the lower part of the bushing in sealing relationship therewith. A pump dispenser is partially fitted in the bushing and the assembly of rigid container, bushing, flexible bag and dispenser are subjected to a vacuum to purge the bag of gas. Subsequently, the pump dispenser is sealingly fit to the bushing except for a venting opening in the bushing that is used to fill the space between the bag and the rigid container with preferably inert gas inserted through the pump dispenser. The pump dispenser is subsequently sealed to the mouth area of the rigid container.
Abstract:
A dispenser for substances that are at least partially fluid includes an outer casing (1) fitted with a pump (4) having a tubular body (5). The tubular body is provided with a vent (5e) that is closed when a piston of the pump is in a rest position. A flexible bag (3) is connected to the pump beneath the vent by means of a bushing (2) that forms a ring which has a cylindrical skirt (2b) connected to a top band (2a) and forms a flange (2c, 2e) for centering and support purposes against the outer casing. A counter-flange (7a) connects the pump to the outer casing in a sealed manner. Communication (2f) is established between a lower intermediate space (1c) surrounding the bag and an upper intermediate space (1b) that is associated with the vent. Conservation of the substance is improved and filling and purging air are simplified.
Abstract:
The invention provides a miniature pump for substances such as cosmetics or pharmaceuticals. The pump comprises a cylindrical body with a bottom intake provided with an inlet valve, in which a skirt encloses a movable piston against the action of a return spring, the piston being provided with a nozzle which passes through the skirt and having an axial channel closed by an internal valve member, biased by a spring. The nozzle is provided at its top portion with an internal shoulder, its bottom portion widening out by contrast into a collar, onto which a bushing is forced by its top edge, the bushing acting externally as a piston sealing gasket, defining under the collar of the nozzle an internal chamber in which the outlet valve member is located, its base being pierced by an axial orifice which acts as an annular seat for the valve member, the return spring for the valve member and the valve member itself being introduced from below and placed inside the nozzle. This pump provides excellent spraying.
Abstract:
A pump comprises an open-ended hollow body defining a pump chamber and an inlet orifice which communicates with a reservoir. The pump body has four side walls. A piston is mounted for reciprocal movement through a portion of the body and it extends through the upper end of the body. A ferrule is disposed above the body and defines an aperture through which the piston extends. A seal is disposed is disposed between the ferrule and the body, and the seal surround a portion of the piston. A spring is mounted in the body, and the spring actively biases the piston toward the top of the body. The body has a deformable zone which has at least a portion of one side wall which is a noncircular cross-section and is radially elastically deformable. The piston has a portion which blocks the inlet orifice when the piston is depressed a first predetermined distance. The piston has an evacuation duct having a lower duct portion extending through the periphery of the piston which puts the pump chamber in communication with ambient air when the piston is depressed a second predetermined distance sufficient for the lower duct portion to be lower than the seal, the second predetermined distance being greater then the first predetermined distance. The lower duct portion is located sufficiently high on the piston so as to delay the placing of the pump chamber into communication with ambient air by the evacuation duct until after the piston is depressed into the body the second predetermined distance which is sufficiently in excess of the first predetermined distance so as to pressurize the pump chamber and radially elastically deform the deform the deformable zone.
Abstract:
The invention relates to a dispensing valve comprising a body formed of a cylindrical casing of rigid material closed by a cover, in which two seals having fluid-tight joints create a lock chamber inside which moves an atomizer provided with a sliding distributor, guided at its ends, which a return spring placed upstream urges towards the cover. The valve has a sleeve allowing alteration of the volume of the chamber and a front seal formed as a separate member, both formed of semi-rigid plastic material. The seal is disposed immediately adjacent an abutment surface formed in the casing. The design is such that entry of liquid during filling takes place through an auxiliary duct and the front seal and sleeve may be formed as a single member if desired.