Abstract: An integral miniaturized nebulizer for an elastically deformable bottle (1), provided with a rotatable closing cap (5), with discharge orifice, and with a suction tube (16) immersed in the liquid to be nebulized, includes a head (3) in a single piece with a body (4) connectable to an elastically deformable bottle (1). The head (3) internally has an elbow conduit (13) for the liquid to be sprayed, extending in a longitudinal segment (14) able to engage the suction tube (16), and in a transverse segment (15) able to end in the discharge orifice of the rotatable closing cap (5) when the cap (5) is in the nebulization position. The transverse segment (15) is coaxial inside a conduit (18) of the air inside the bottle (1) and in communication therewith via a plurality of radial channels (25) drilled in the terminal end of the same transverse segment (15).

Abstract: What is being proposed is a dispensing device for a preferably cosmetic liquid and a manufacturing method. A first material is pretreated in areas through the application of a coating or embossing foil such that a second material which is injection-molded directly against it does not bond with the first material in the pretreated area but rather can be detached again.

Abstract: A pump-equipped container (10) includes a tubular container body (11) that is made of a sheet material having flexibility and a pump device (13) that includes a pump body (15) and a nozzle portion (14). A one-end section of the container body is closed off, and the pump device (13) is attached to the other-end section of the container body. The pump body (15) has an outer-circumferential-surface section (16) that comes into close contact with an inner circumferential surface of the other-end section (11b) of the container body (11). The pump device (13) is attached to the other-end section (11b) of the container body (11) in such a state that the outer-circumferential-surface section (16) is covered with the container body (11) by being brought into close contact with the inner circumferential surface of the other-end section (11b) of the container body (11). The container body (11) is formed using a sheet material having a gas barrier property.

Abstract: A head part module of a discharge pump for a discharge container, in which the head part of the pump mechanism can be readily varied. A head part module of a discharge pump includes a mounting cap having a link cylinder upwardly extending via an inward flange from an upper end of a mounting cylinder: a cover ring having a top plate with a through hole in the middle part thereof, an outer wall hanging from an outer circumference of the top plate, a first fitting strip and a second fitting strip circumferentially provided on the rear face of the top plate, a top part of the link cylinder, being loosely fitted into the second fitting strip; and a push down head having an outer cylinder hanging from an outer circumference of a top plate a first communication tube hanging from a rear face of the top plate above the through hole and a nozzle forwardly projecting from the outer cylinder, the outer cylinder being fitted onto an outer face of the outer wall.

Abstract: A push-button for a system for dispensing a product under pressure, the push-button includes an actuator body having an orifice for ejecting the product, a closing off valving element of the ejection orifice and a sleeve having a mounting well of the push-button on a feed tube for the product under pressure, the body being slidably mounted around the sleeve between a high position and a low position by forming between them a space for carrying the product from the mounting well to the orifice for ejecting the product, the valving element being mounted between the body and the sleeve by the intermediary of a device for reversible displacing of the valving element between a closing off position—respectively an ejection position—when the body is in high position—respectively in low position—, the push-button includes an elastic recalling of the body in high position.

Abstract: A pump assembly with a first pump which draws liquid from a reservoir and dispenses it to a second pump. The second pump receives the discharge from the first pump and air such that the second pump discharges both liquid and air. The first pump preferably has a piston movable in a first inner chamber and the second pump utilizes the same piston movable in a second outer chamber. Preferably, the second pump discharges in the withdrawal stroke, that is, while moving from a retracted position to a withdrawn position.

Abstract: A dispenser has a housing, and a variable-volume storage chamber formed within the housing and defining a substantially fluid-tight seal between the chamber and exterior of the housing for storing a substance to be dispensed. A piston is mounted within the housing, and a one-way valve is mounted within the housing and coupled in fluid communication with the variable-volume storage chamber.

Abstract: A liquid material discharge device which can remove bubbles in a liquid material supplied to the device, can ensure a stable discharge amount of the liquid material, and can reduce the weight of a plunger section. The liquid material discharge device comprises a liquid material supply section for supplying the liquid material to be discharged, a measuring section having a measuring hole and a plunger sliding on an inner wall surface of the measuring hole to suck the liquid material into the measuring hole and to discharge the liquid material, a discharge section having a discharge port for discharging the liquid material, a valve section for changing over communication between the liquid material supply section and the measuring section and communication between the measuring section and the discharge section, and a debubbling mechanism provided in a flow path running from the liquid material supply section to the measuring section.

Abstract: A liquid dispenser for dispensing a liquid from a liquid storage container operably associated with the liquid dispenser. Preferably, the liquid dispenser includes a main housing having a dispensing location at which liquid from a liquid storage container is dispensed and a storage location for storing a liquid storage container. Preferably, the liquid dispenser includes a removable liquid transport assembly removable from the main housing having a substantially rigid liquid manifold, a valve assembly, a riser tube, a reservoir, a reservoir dip tube, a pump head, a pinch tube and a dispensing nozzle that are removable as a single unit from the main housing. Preferably, the liquid dispenser includes a single self-priming pump. Preferably, the valve assembly includes a non-return valve and a pressure relief valve that act in concert to control the flow of liquid between the liquid storage container and the reservoir.

Abstract: A dispensing system for supplying containers with a fluid material provided from a source is provided. The dispensing system includes a chamber configured to be connected to receive the fluid material from the source and a piston configured for motion between predetermined limits for establishing controlled volumes of the fluid material. The dispensing system further includes a nozzle configured to receive the controlled volumes of the fluid material and to discharge the controlled volumes of the fluid material into the containers and a switching valve positioned directly between the piston and the nozzle, the switching valve configured to include a lumen that moves from a first position to a second position to regulate the discharge of the controlled volumes of the fluid material.

Abstract: A Dispenser of fluid product includes a ring nut (2) able to be associated with a container of a fluid product and a dispensing head (7), substantially hollow and coaxially slidable relative to the ring nut. The dispensing head includes a dosing chamber (13) positioned inside the dispensing head, a dispensing nozzle (11) to allow escape of the fluid product. The dispensing head further includes a deformable membrane (14) fastened to the ring nut and a top wall (9) facing the membrane and defining the dosing chamber in combination with the membrane; the top wall being movable between a first position, distal from the ring nut, in which a volume of the dosing chamber is greatest and the dosing chamber is isolated and at least in part filled with fluid product, and a second position, proximal to the ring nut, in which the volume of the dosing chamber is smallest.

Abstract: A food dispensing apparatus comprises a first shell, at least one second shell disposed within the first shell, a nozzle coupled to the first shell and the at least one second shell, and a check valve disposed in the nozzle and coupled to the at least one second shell. The at least one second shell is suitable for containing a food component. The food dispensing apparatus is suitable for preventing air from entering the at least one second shell.

Abstract: Disclosed is a device (1) for dispensing a liquid (2) without spraying as well as a use of such a dispensing device (1). In order to prevent liquid from escaping after a dispensing process, an outlet that opens towards the environment can be closed by means of a discharge valve (7). Said discharge valve (7) is provided with a valve body (9) which can be moved in accordance with the prevailing liquid pressure such that the discharge valve (7) opens when a minimum pressure is exceeded.

Abstract: Disclosed are an air bubble ingress prevention mechanism, a liquid material discharge device provided with the air bubble ingress prevention mechanism, and a liquid material discharge method, with which a constant filled state can be achieved without variations and without requiring any additional equipment when a metering section is filled with liquid material. A discharge device is provided with a metering section which has a flow passage communicating with a nozzle, and a plunger which moves back and forth within the flow passage of the metering section.

Abstract: A content discharge mechanism for a container with a pump has a discharge outlet that is fixed in position. The device has an operation button and a cylindrical piston that move as one, as well as a ball valve that rests on a seat. The ball valve opens as the cylindrical piston retracts after an actuation to allow more fluid into the upstream passage chamber. A downstream passage with a valve for dispensation fluidly communicates with the upstream passage through a hole. As the cylindrical piston and its seal slide over the hole, the discharge from the downstream passage stops.

Abstract: An airless type cosmetics vessel, in which, in order to suck a gel type cosmetic from a vessel body into a cylinder chamber, an axial valve primarily opens an inlet passage and closes an outlet passage according to stepwise upward movement of a piston and an axial valve, and the piston is further moved upwards, thus sucking the cosmetic into the cylinder chamber, and, in order to discharge the cosmetic from the cylinder chamber, the axial valve is primarily moved downwards so as to close the inlet passage and open the outlet passage, and the piston is further moved downwards, thus compressing the cosmetic in the cylinder chamber and discharging the cosmetic from the chamber, so that a precise cosmetic suction and discharge operation can be executed by the stepwise suction and discharge actions of the axial valve and the piston, separately provided, without malfunctioning.

Abstract: A hand-held dispenser for dry granular materials consists of a reservoir for the material, a removable telescoping rigid tube assembly, and a flexible valve assembly at the bottom of the tube assembly which allows passage of material when the inner tube is pushed into the outer tube. The reservoir includes a handle which allows the apparatus to be hand-held with the valve assembly end pointed downward. The inner tube is rigidly attached to the removable reservoir and can be pumped up and down to a pair of stops to dispense a measured amount of material at the bottom end of the telescoping tubes. The flexible valve can be constructed of a rubber sheet with radial fingers or spring loaded closure which will flex open to dispense material when the inner tube is pushed downward, but will not allow material to flow by gravity alone.

Abstract: A dispenser for dispensing liquids including an inner displacement member nested in an outer displacement member. The inner member is moveable between two end positions within the outer member by an actuator. The actuator is arranged to move the outer displacement member into a dispensing position when the inner displacement member is in one of its end positions. The displacement members can be pistons and/or bellows.

Abstract: A fluid delivery system comprising a pump arranged to draw fluid, in use, from a reservoir (1) and dispense it through a dispensing tube (4), the pump comprising a cylinder (21) in which a piston (22) is reciprocally movable; an inlet into the cylinder; a one-way inlet valve (17) for controlling flow through the inlet; an outlet from the cylinder and leading to the dispensing tube; and an outlet valve (27) controlling flow through the outlet, wherein the piston is arranged to selectively contact the outlet valve to maintain it open during the initial portion of its downstroke and to allow it to close for the remainder of the downstroke.

Abstract: A valve assembly for a dispenser for fluids includes a housing having at least an inlet opening and an outlet opening and a further opening connected or connectable to a fluid displacement mechanism, and a valve member comprising two parts translatably disposed within the housing, a first part for closing and opening the inlet and a second part for opening and closing the outlet.

Abstract: A concentrate/extract cartridge for dispensing a liquid concentrate/extract is provided. The cartridge includes a hollow body and a dispensing tube that contains a pumping device. The cartridge includes a valve having a valve stem that passes through a port of a valve seat connected to the dispensing tube. A piston is located at a first end of the valve stem and a valve body is located at a second end of the valve stem in removable contact with the valve seat for alternately opening and closing the port. The piston can also includes a membrane positioned on a side facing the valve stem configured to permit a flow of fluid into the dispensing tube when the valve body is in contact with the valve seat and to permit the fluid to be forcibly expressed from the dispensing tube when the valve body is moved from its contact position. A liquid dispenser suitable for numerous applications, having a removably insertable concentrate/extract cartridge and a method of dispensing a liquid are also provided.

Abstract: A dispenser includes a housing having a sidewall with first and second axial ends. A container has first and second end portions with the second end portion engaged with the housing such that the container extends from the first axial end of the housing. A plunger having first and second sides is disposed in the interior cavity of the container. The interior cavity of the container and the first side of the base cooperatively define a product cavity. The interior cavity of the container and the second side of the base cooperatively define an air cavity. A valve mechanism is in engagement with the second end portion of the container. The valve mechanism includes a nozzle defining an orifice and an accumulator defining a pumping chamber. The pumping chamber is adapted to receive a portion of the product in the container. A piston is selectively slidable in the pumping chamber.

Abstract: A device for discharging a constant amount of a high-viscosity material, capable of accurately discharging the material even if the material is sent under high pressure. A device for discharging a constant amount of a high-viscosity material, provided with: a discharge unit (400) having a discharge opening which discharges the high-viscosity material; a holding unit (300) having a holding area which holds the high-viscosity material, a receiving opening which supplies the high-viscosity material to the holding area, and a delivery opening which delivers the high-viscosity material to the discharge unit; and a high-pressure supply pump (100) for supplying to the holding unit under a first pressure the high-viscosity material having been filled into a container.

Abstract: A disposable concentrate pump for use with a liquid reservoir, with the actuating solenoid mounted in the dispenser. The pump has a body with flexible walls, a top-cap, a seal-base and a nozzle, with a seal-rod extending from the top-cap to the nozzle, stretching the flexible walls of the body and creating a net restoring force on the seal-base. A seal-head on the seal-rod seals a central opening in the seal-head when pressed against a side of the seal-head by the net restoring force. Reciprocally moving the seal-head parallel to an axis of the pump body operates the pump.

Abstract: A mechanically operated, one-turn actuation, duration spray pump mechanism for dispensing product from a container, wherein a cylinder is fixed to a cylinder retainer closure adapted to be attached to a container. In use, the cylinder extends into the container, and a splined shaft extends coaxially into the cylinder from a rotatable actuating collar connected to the cylinder retainer closure. At least one piston is mounted for axial movement on the shaft in sealed sliding relationship with the shaft and the cylinder. Interengaged structure between the piston and cylinder causes the piston to move axially within the cylinder to draw product into the cylinder and to store energy in an energy storage device when the actuating collar and shaft are rotated. The stored energy moves the piston to exert pressure on the product in the cylinder and dispense it when a discharge valve is opened.

Abstract: The present invention relates to a button-sliding-type opening/closing device for a cosmetic container consisting of a vessel for storing cosmetics in a liquid or gel state, and a discharge pump coupled to a top inner portion of the vessel for discharging cosmetics by applying external pressure thereto, wherein the button-sliding-type opening/closing device comprises: a shoulder (20) coupled to the top portion of the vessel (10); a button body (30) inserted into the shoulder (20) and upwardly and downwardly movable; and a button (40) slidably coupled to a top surface of the button body (30), for opening and closing a cosmetic pumping hole (31) in the button body (30), as well as for preventing the button body (30) from being pressed and actuated

Abstract: A dispenser of viscous fluid, in at least one embodiment a hot melt glue adhesive, has a heater element, an adhesive source, a main common passage, and a series of valves that all fluidly connect to the main passage. A sheet of receiving material, such as an envelope, has hot melt glue applied to its surface as it passes under the series of valves. A variable amount of valves can be activated by moving control rods inwardly or outwardly of the main common passage. The moving control rods have indicator markers, a securing screw and are housed in U-shaped beds which collectively make adjusting the dispensing pattern very easy.

Abstract: A fluid dispenser member (1) for associating with a fluid reservoir (2) so as to form a fluid dispenser, the member (1) including a body (11) via which the dispenser member is mounted in stationary manner on a mounting part (3), the body (11) defining a housing (113) for receiving another component element (13) of the dispenser member. The housing (113) includes a movable portion (115) that is displaceable from an initial configuration in which the housing is open, to a final configuration in which the housing is closed on the component element (13) while the dispenser member (1) is being mounted in the mounting part (3).

Abstract: An anti-drip valve assembly for a fluid dispenser is disclosed that includes a valve block and a cylindrical valve body disposed within the valve block. The cylindrical valve body includes a recess for accommodating a valve element. The recess is in communication with the chamber for accommodating a biasing element for biasing the valve element outward and away from the valve body or towards the valve block or dispense port, depending upon the position of the valve body. When the valve body is in a closed position, the valve element is biased against the dispense port. When the valve body is in a dispense position, and there may be a plurality of dispense positions, the dispense port is selectively in communication with a fluid passageway or one of a plurality of fluid passageways for dispensing fluid through the dispense port. The valve assembly is particularly useful for fluid dispensers employing more than one pump for dispensing a common fluid in different amounts.

Abstract: A dispenser has a housing, and a variable-volume storage chamber formed within the housing and defining a substantially fluid-tight seal between the chamber and exterior of the housing for storing a substance to be dispensed. A piston is mounted within the housing, and a one-way valve is mounted within the housing and coupled in fluid communication with the variable-volume storage chamber.

Abstract: Apparatus for applying fluids such as adhesive, in particular hot melt adhesive, to a substrate. The apparatus includes a main body which can be connected to a fluid source, an application valve for selectively interrupting or enabling a flow of fluid, and a nozzle arrangement arranged on the main body for applying the fluid. The nozzle includes a distributor passage communicating with the fluid source, and the nozzle arrangement has at least one outlet opening for delivery of the fluid, which communicates with the distributor passage, and a closure body arranged movably in the distributor passage for varying the length, which can be acted upon with fluid, of the distributor passage. The distributor passage is provided in a one-piece portion of the nozzle arrangement.

Abstract: A nozzle for dispensing a liquid contained in a receptacle, the nozzle including a rigid body provided with a dispensing channel including a dispensing orifice emerging in the front wall of the body, the nozzle also including an elastically deformable sleeve that is disposed in a non-adherent fashion and in clamping contact around at least part of the periphery of the rigid body, the sleeve being provided with at least one front lip that is disposed opposite the dispensing orifice, the lip being arranged so as, by application of the dispensing pressure of the liquid on it, to be reversibly movable between a stable closed state and stressed opening state of the orifice, in which the attachment of the sleeve on the rigid body is achieved in combination by a first attachment for retaining the axial movement of the rear part of the sleeve relative to the rigid body and by a second attachment for retaining the axial movement of another part of the sleeve relative to the rigid body.

Abstract: A triggering and dispensing head to be mounted on a pump for a liquid product dispenser provided with an exhaust conduit wherein the head has a body provided with an ejection channel closable by a flap which has a center punch translationally displaceable in the channel and hingeable about a drive billet connected to an axial rod sliding in the exhaust conduit.

Abstract: A receiving device in a dosage-dispensing device, which serves to receive any insertion unit that can be inserted in the receiving device, includes a plurality of support arms that are arranged parallel to each other and extend in their lengthwise direction substantially orthogonal to the direction of gravity. At least two support arms are arranged in planes lying above one another relative to the direction of gravity. Each support arm includes at least one support location, so that, when the dosage-dispensing device is in its operating state, the insertion unit can be supported through the support locations against the force of gravity. Each support arm includes at least one protrusion which serves to position the insertion unit in a plane that extends orthogonal to the direction of gravity. The main dimension of the protrusion is directed essentially against the direction of gravity.

Abstract: The invention relates to a discharge device for discharging liquid medium, with a pump device with a variable volume pump chamber, a discharge opening for the liquid medium, a feed path between the pump device and the discharge opening, and an outlet valve which is designed to open the discharge opening as a function of the pressure in the feed path, and to a discharge head provided for this purpose. The discharge device or the discharge head has a gas-permeable and liquid-tight air outlet which connects the pump chamber or the feed path to an external environment.

Abstract: A pump intended to be mounted on a bottle, so as to allow the dispensing of a liquid contained in the bottle, includes a needle for closing an ejection orifice that is separate from a dosing sleeve. The needle is mounted on the sleeve by a device for the reversible movement of the needle between a closure position and an ejection position, the device being actuated by interference between the sleeve and a piston when a push button is moved on a hoop.

Abstract: A hot and cold water dispenser includes a base unit that has an open top end and a closed bottom end respectively. The base unit is formed from rigid material such that the base unit maintains a fixed shape when a traditional one gallon, square shaped bottle typically sold at supermarkets and other retail outlets (referred throughout the patent application as an “existing one-gallon water bottle”) is positioned therein. A mechanism heats and cools water contained within the base unit, and is housed within the base unit. A mechanism dispenses the heated and cooled water, and is housed within the base unit and directly connected to the heating and cooling mechanism.

Abstract: A fluid dispenser device including: a reservoir (10); a dispenser head (20) incorporating a dispenser orifice (21); a metering chamber (30); and a piston (40) that is slidable in the metering chamber (30) between a rest position and a dispensing position. The piston (40) is mounted in stationary manner on the reservoir (10) and made integrally with the reservoir (10) and/or with a fastener mechanism (100) adapted to be fastened on the reservoir (10).

Abstract: A pump for a liquid cosmetic product dispenser including a body defining a metering chamber provided with an admission orifice at the bottom and having an opening at the top into which is inserted a sleeve carried by an axially movable operating head which is provided with a delivery duct and an open/close element and is acted upon by a return spring mounted on the outside of the body. The body encloses a jacket that moves axially inside the chamber and at least partly inside the sleeve and supports a lower valve for closing the admission orifice.

Abstract: A liquid dispenser device for being associated with a liquid reservoir (R), said device comprising: a chamber (10) provided with an inlet valve (5, 15), an outlet valve (32, 232), and a piston (3) that is suitable for varying the volume of the chamber; a liquid dispenser orifice (25); and a pusher (2) that is axially displaceable down and up between a rest position and a depressed position; the dispenser device being characterized in that the pusher (2) includes an elastically-deformable wall (212) that is thus displaceable relative to the remainder of the pusher, the piston (3) being in contact, at least momentarily, with the deformable wall (212), so as to be urged in displacement relative to the remainder of the pusher while the wall is being deformed, in such a manner as to open the outlet valve.

Abstract: A stable caulk or sealant composition containing as principal ingredients styrene-ethylene/butylene-styrene copolymer and Diethyl ether is disclosed. The composition is generally employed in a canister pressurized with a propellant to expel a stream of water-impervious sealant to fill cracks, crevices and gaps to water damage. When desired, the sealant is removable from the application area.

Abstract: A drinking container includes a main reservoir; a filling reservoir; a filter connecting the filling reservoir to the main reservoir; a plunger assembly having a plunger head in the filling reservoir and a shaft extending therefrom. The shaft defines a passageway from to an opening in the plunger head, to allow addition of liquid through the passageway into the filling reservoir. A valve allows closing of the opening to allow the plunger head to be urged into the filing reservoir, thereby urging liquid in the filling reservoir through the filter into the drinking reservoir.

Abstract: A liquid dispenser is described and includes a cover connecting to the opening of a container and a main body connecting to the cover. The main body includes a chamber in communication with the cover and a liquid outlet for liquid discharge, wherein a liquid output device is arranged in the chamber, a button is arranged on the main body for controlling the action of the liquid output device, a one-way valve is arranged in the liquid output device for adjusting the open/close state of a liquid output passage. The liquid dispenser described is novel in design, simple and compact in construction. The liquid dispenser described can employ the operating principle of a one-way valve so as to realize liquid discharge in any direction.

Abstract: The invention relates to a pump for a liquid product dispenser, which includes a reservoir and interacts with a manually actuatable element provided with an injection orifice. The pump includes a body embodied in the form of a single piece and including a seat which covers the reservoir and is provided with an intake orifice and a flap, which is mounted on the seat by a joint associated with an elastic bellows which enables the flap to be reversibly tilted towards the seat, by pressing on the actuating element, in such way that the injection orifice is opened and the intake orifice is simultaneously closed.

Abstract: A dispensing apparatus capable of being detachably coupled to a container for dispensing liquid from the container is disclosed. The dispensing apparatus includes a central unit, a pump, a release valve assembly, a pipe, and a nozzle. The central unit is configured to detachably couple with an opening of the container containing the liquid. The pump is configured at a first end portion of the central unit. The pump is operable to generate pressure within the container. The release valve assembly is configured in the central unit. The release valve assembly is capable of controlling a flow of the liquid from the container and dispensing the liquid. The pipe is attached to the release valve assembly. The pipe is capable of carrying the liquid to be dispensed. The nozzle is configured at a second end portion of the central unit and is capable of dispensing the liquid from the pipe.

Abstract: A disposable pump for a collapsible reservoir has an upper chamber, a lower chamber and a seal base in between. The upper and lower chambers have flexible sections or bellows that expand or contract the chambers, and the seal base has a rigid rod that selectively forms a seal on an opening in the seal base between the upper and lower chambers. One of the two chambers has a nozzle and the other chamber has a top cap that leads in many embodiments to a collapsible bag reservoir. In at least one embodiment a solenoid overcomes the biasing force of a compression spring and lifts the seal base off the rigid rod. This opens the seal and assisting pushing out potentially very viscous liquids into the chamber that includes the nozzle and the liquid ultimately dispenses from the pump through the nozzle.

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 dispenser has a housing, and a variable-volume storage chamber formed within the housing and defining a substantially fluid-tight seal between the chamber and exterior of the housing for storing a substance to be dispensed. A piston is mounted within the housing, and a one-way valve is mounted within the housing and coupled in fluid communication with the variable-volume storage chamber.

Abstract: A spout valve assembly, for a pump dispenser including a discharge head, is located within an opening in the discharge head for permitting outletting of liquid product and includes a spout valve retained within the discharge head opening by a retainer. The spout valve includes a slit at a first end thereof and an orifice at a second opposite end thereof. The slit includes slit lips directly engageable with and disengageable from each other to respectively define slit closed and opened configurations. The spout valve is made of a material for permitting opening of the slit under pressure from the liquid product for thereby allowing the liquid product to be discharged out through the slit when in the slit opened configuration, and for otherwise permitting closing of the slit to prevent the liquid product from being discharged through the slit when in the slit closed configuration.

Abstract: A push-button for a system for dispensing a product under pressure, the push-button includes an actuator body having an orifice for ejecting the product, a closing off valving element of the ejection orifice and a sleeve having a mounting well of the push-button on a feed tube for the product under pressure, the body being slidably mounted around the sleeve between a high position and a low position by forming between them a space for carrying the product from the mounting well to the orifice for ejecting the product, the valving element being mounted between the body and the sleeve by the intermediary of a device for reversible displacing of the valving element between a closing off position—respectively an ejection position—when the body is in high position—respectively in low position—, the push-button includes an elastic recalling of the body in high position.