Abstract: The present invention relates to a pumping device (110) and a cosmetic bottle using the same. More specifically the present invention relates to a pumping device (110) in which an inserting bar (132) is formed in a upper cap (130) of a nozzle (136) and the nozzle (136) is moved forward and backward according to a pumping operation so that an opening of the nozzle is kept from being clogged by hardening of the gel-type contents.

Abstract: A water stopping and infiltration-proof structure for a lotion spray nozzle, which is accomplished by adopting a water-stopping flange that is integrated with the cover top and is expanded from the top of the straight shaft tube, together with female and mate threading that are moved outwards along with the spray nozzle's bottom rim and the integrated cover's rim. This will enable the water-stopping flange to wipe off water drops on the piston shaft surface, and prevent water on the integrated cover top from infiltrating into the shaft tube.

Abstract: Device for dispensing fluid, comprising a body, a push-button and locking means. The body is intended to be fixed to the neck of a bottle. The push-button can be depressed in relation to the body in an activating direction between a rest position and a depressed position in order to control fluid-dispensing means. The locking means have an active state in which they prevent the push-button from being depressed in the activating direction and an inactive state in which they allow the pressing action. In order to move the locking means from the inactive state to the active state thereof, a force must be applied to the push-button in the activating direction in order to displace the push-button, from the rest position to a locked position, by translation in relation to the body in the opposite sense to that in which it is pressed in.

Abstract: A dispenser includes an improved closure arrangement for sealing the dispenser in such a manner that oxidation of the paste-like product to be dispensed is avoided. The main headpiece is spring biased upwardly toward a first position relative to the container and to the product delivery piston, whereupon the upper end surface of the piston is spaced a given distance from the headpiece, and a cylindrical bearing surface on the headpiece closes the product supply outlets contained in the piston. When the main headpiece is depressed downwardly by the given distance toward an intermediate second position in which the headpiece engages the adjacent piston end surface, the bearing surface on the main headpiece is displaced downwardly to open the piston outlets.

Abstract: A device for packaging and dispensing of a cosmetic product which includes a container to hold the product, with the container being delineated by a body. A movable element moves relative to the container body and is capable, in response to an action exerted manually on a surface of an actuating element, of moving from a first position to a second position. The movable element incorporates a first lip intended to engage with an inner wall of the body, during at least part of its movement, thereby isolating a dose of product inside the container in a manner to cause its expulsion through at least one dispensing aperture. The movable element also includes an upper lip capable of being applied in a leaktight manner against the inner wall during at least part of its movement from the first position to the second.

Abstract: A dispensing pump for a fluid product, including a pump body (10) in which at least one piston (20, 30) slides, wherein a pump chamber (40) is defined between an input valve (50) and an output valve (60), and the pump body (10) extends towards the inside of a tank (2) through a plunger tube (70), the input valve (50) being sealably connected to the plunger tube (70), the pump having a return spring (5) which brings the pump back towards its rest position, and characterized in that the spring is positioned out of any contact with the fluid product.

Abstract: A dispenser assembly for dispensing a substance from a receptacle is provided. Preferably the collar therefore comprises outwardly projecting and elongated angled ribs for forming complementary elongated grooves in the outer surface of the ferrule. A method of assembling such a dispenser assembly upon a receptacle is also provided and comprises the important step of allowing the collar to rotate over the outer surface of the ferrule and towards the receptacle, such that the elongated ribs form complementary elongated grooves in the outer surface of the ferrule thereby forming an airtight seal between the dispensing assembly and the receptacle.

Abstract: An assembly for packaging and dispensing a product, especially a cosmetic product. The assembly includes a container containing the product and delimited by a body, one end of which is closed by a bottom. A movable component is movable relative to the body of the container and is capable, in response to an action exerted manually on a surface of an actuation component, of passing from a first position in which the volume delimited between the movable component and the bottom of the container is a maximum, to a second position in which the volume is a minimum, so as to pressurize the product contained in the volume and deliver the product through at least one dispensing orifice. When the movable component returns from the second position towards the first, air passes into the volume through at least one passage formed between the movable component and an internal surface of the container.

Abstract: A fluid dispenser device (10) including a fluid reservoir, a dispensing member such as a pump, a dispensing head (15) provided with a dispensing orifice (16) and with a fixing portion (12, 13), and a safety cap (20) provided with fixing device (30) for fixing the cap (20) to the dispenser device (10), the fixing device (30) being removable in order to take off the cap (20) before the dispenser device (10) is used, the fixing device (30) being removed by a combination of axial pressure on the cap (30) along an axis (X) of the device, and turning the cap (20) about the axis (X), the fluid dispenser device being characterized in that the cap (20) is provided with fixing tabs (31), each of which has a U-shaped end (32), and the fixing portion (12, 13) is provided with a respective axial slot (12) for the U-shaped end (32) of each fixing tab (31), the axial slot (12) being defined by a respective side wall (13) adapted to come into position between the branches of the U-shaped end (32), after the cap (20) has been

Abstract: Disclosed is a constant discharge structure for a nozzle head lowering type vacuum cosmetics container for containing high functional cosmetics. The constant discharge structure includes a liquid collecting chamber having a liquid inflow hole in the lower portion of a piston support member mounted in the container, a groove having an inclined short jaw, a support jaw and a liquid inlet hole and an open/close unit for opening/closing the liquid inflow hole in the lower portion of a central shaft, an elastic pumping member being inserted into the groove of the shaft and including a hole having an inner wall for opening/closing the liquid inlet hole on a flat surface unit, and a cylinder incorporated inside a piston for supporting the central shaft.

Abstract: The present invention relates to a screw-on, manually operated sprayer and container. The sprayer has an inside threaded sprayer neck and the container has an outside threaded container neck upon which the inside threaded sprayer neck is attached. The present invention relates to the improvement of providing a child-resistant safety feature. This feature is a non-flexible collar attached to the outside of the sprayer neck and adapted to freely rotate about the sprayer neck to inhibit undesired unthreading or threading of the sprayer neck from or to the container neck. The collar has a continuous sidewall, an open top with a top rim, an open bottom with a bottom rim, positioning means located on the collar to maintain a predetermined position of the collar relative to the sprayer neck, antiremoval means located on the collar to prevent removal of the collar from the sprayer neck, and at least one flexible engagement means located on the sidewall.

Abstract: A manually operated liquid foaming dispenser is attached to the top of a container of liquid and is manually vertically reciprocated to dispense the liquid from the container as a foam. The dispenser includes a liquid pump chamber and an air pump chamber that respectively pump liquid and air to a discharge passage of the pump where the liquid and air are mixed, generating the foam dispensed from the dispenser. The liquid dispenser is constructed with three biased closed valves that prevent leakage from a liquid container attached to the dispenser should the dispenser and container be positioned on their sides or be inverted.

Abstract: A finger operated pump assembly comprising a pump body (60, 160) having a base (64, 164) supporting an outer housing (62, 162) and an inner housing (66, 166) and defining a first portion of a compression chamber (68) therebetween. A piston (82) has an annular lip and has a piston outlet defined by a poppet valve seat. A poppet (98) is accommodated by the inner housing (66, 166) and biased away from the base into engagement with the poppet valve seat by a spring (104). The poppet (98) and inner housing (66, 166) define an interior cavity (100). A peripheral passageway (74) communicates with the compression chamber (68) and includes a one-way valve (76). A ventilation port (110) is provided int the interior cavity (100) so that during operation of (98), it may operate at ambient pressure.

Abstract: A device for selectively wetting pieces of toilet paper. The device contains a hollow two-piece mandrel containing a nub at each end. The nub of the first piece contains a stabilizing pin for keeping the device in the upright position. The first piece also contains a spring for maintaining outward pressure on the two pieces. The second piece contains an enclosure for a desired liquid lying along a tilted platform and a manually controlled actuator and dip tube. Pushing down the actuator results in a spray of the desired fluid directed at several pieces of toilet paper which have been removed from the roll.

Abstract: Device comprising a push-button (8), a base element (16) and a cap (10). The push-button (8) is intended to activate a pump (6). The base element (16) is intended to be fixed to the neck (20) of a bottle (4). The cap (10) comprises a sleeve (12) and a membrane (14). The sleeve (12) is made of rigid plastics material, is fixed to the base element (16) and has a tubular portion (22) which extends in an extension direction (30). The membrane (14) is made of elastomer material, is substantially in the form of a disc and extends substantially perpendicularly to the extension direction (30) in the immediate vicinity of the push-button. The membrane has a peripheral edge (28) which is fixed to the sleeve (12) in a sealing manner. The cap defines a cavity (32) which encloses the base element (16) and the push-button (8).

Abstract: The invention concerns a liquid or gel product dispenser, comprising a reservoir (R) supporting a pump body (1) including in its lower part an intake valve (2) and provided with a piston (3) mobile along an axis, defining with said body a metering chamber communicating with at least an ejection orifice defined in an axially mobile dispensing nozzle at the end of the reservoir; said piston is coupled by friction with said dispensing nozzle, which is axially mobile in both directions by manual actuation, relative to said reservoir; said metering chamber comprises a lower section (10a) and an upper section (10b), both sections communicating via a conduit (30) arranged across said piston and a closure valve (5) is arranged between said piston and said nozzle.

Abstract: An emulsion pump mainly comprises a piston rod, a pressing head, a screw-topped sleeve, a cylinder, a spring, a rubber pipe and a gasket. Among them, the upper screw thread of the cylinder engages with a screw thread portion of the screw-topped sleeve. The width of the teeth of the upper end screw thread of the cylinder is A, the width of the gullet the screw thread portion of the screw-topped sleeve which is connected with the screw thread of the cylinder is B, and B is greater than A, thereby a gap exists between them; in addition, a gap is also formed between the contact surface of the upper end of the cylinder and the lower surface of the top portion of the screw-topped sleeve, thereby an air channel for preventing liquid entrance is formed in the emulsion pump.

Abstract: A dispenser head of a dispenser for dispensing metered quantities of liquid and pasty products with spherically encapsulated components includes a dispenser pump and a dispenser duct with applicator opening following the dispenser pump for metered dispensing of products, wherein the dispenser pump includes an inlet duct and an outlet duct and a pump chamber closed at the inlet and outlet sides by check valves. At least one screen-like perforated mask is arranged in the product flow from the pump chamber during the dispensing procedure toward the outlet side, such that the entire product quantity must pass through the perforated mask during the dispensing procedure.

Abstract: Liquid measuring and dispensing devices measure and dispense a quantity of cooking oil or other liquids or flowable powders. The liquid measuring and dispensing device attaches directly to the bottle containing the material, eliminating the need to search for measuring instruments when one desires to measure a quantity of material. Because of the direct bottle attachment, it is impossible to spill the material during the measuring process. Furthermore, because the use of external measuring instruments is eliminated, there is no cleaning process required after measuring and dispensing a quantity of material.

Abstract: The present invention provides a cup dispenser for holding cups adjacent to the dispenser. The cup dispenser is designed for use with a bottle having a liquid dispenser mounted thereon, and includes a saddle and a holder. The saddle includes a top panel including an opening sized to accommodate the liquid dispenser of the bottle, and one or more side panels connected to and extending downwardly from the top panel. When the liquid dispenser is inserted through the opening, the saddle engages the bottle. The holder extends from a side panel and is configured to receive a plurality of vertically stacked cups. There are many advantages associated with the cup dispenser of the present invention. Dispensing liquids such as mouthwashes, fluoride solutions, medications, and refreshments becomes more convenient and more sanitary using the cup dispenser of the present invention.

Abstract: The invention concerns a device for dispensing a dose of liquid or gel products comprising a dispensing head axially mobile mounted on a product reservoir and provided with an outlet conduit and a metering chamber delimited by an intake valve and by a piston whereof the rod is connected to said head and which is equipped with an exhaust valve. The invention is characterized in that the rod of the piston extends inside the chamber through a projecting lower end providing sealed locking of the intake valve when the head is in low position.

Abstract: A double-acting pump for ejecting a product from a container includes a piston which is axially slideable in a housing and is sealed by the housing. A hollow piston rod extends the axial bore of the piston and is slideable in a closing cap and has an actuating head, wherein, when the actuating head is actuated, the piston builds up a pressure in a pressure chamber against a restoring force of a spring. An outlet duct extends through the actuating head to an outlet opening. When subjected to the restoring force of the spring, the piston releases a passage between the pressure chamber and openings of a second housing portion. A medium which kills germs and bacteria is arranged in an expansion chamber. The dispensing stroke volume of the piston corresponds to the volume of a drop of the liquid.

Abstract: A multi-mode hard-candy, liquid-candy dispensing system that includes a liquid-candy dispensing sprayer and container assembly that is adapted to be moved in multi-directions for fun and to permit better dispensing of the candy in children's mouths. The assembly includes an extendable and rotatable dispensing nozzle sprayer has a finger-actuated spray head to activate a fluid pumping unit. The sprayer also includes an elongated tube having one free end adapted to rotate 360° in a Y-plane with respect to and in fluid communication with the finger-actuated spray head. A dispensing nozzle is affixed to the other free end of the elongated tube. The hard-candy is molded to the nozzle for simultaneous and independent consumption and dispensing of the liquid-candy and hard-candy.

Abstract: 1. A dosing device with a pump device.

Abstract: A fluid dispenser, including: a receptacle defining a fluid reservoir and an opening; a dispensing member fitted in the opening of the receptacle, and provided with an actuating rod, and a pusher serving to be fitted to the actuating rod of the dispensing member. A trim shell is provided in which an assembly made up of the receptacle and of its dispensing member is adapted to be held in removable manner, and in that the pusher is held captive by the trim shell so that the actuating rod can be connected to the pusher only when inside the trim shell.

Abstract: A dosage pump comprising a pump body which can be adapted to a container and control means which can be actuated from the outside in order to be displaced between a distributing position and a rest position.

Abstract: A manually-actuated fluid dispenser pump including a pump body (10) and a piston (50) mounted to slide in leaktight manner in the pump body (10) between a rest position and a dispensing position, the piston (50) being provided with at least a bottom sealing lip (51) in leaktight contact with the pump body (10), the pump body (10) being provided with an inwardly-extending radial shoulder (11) co-operating with the bottom lip (51) of the piston (50) to form an abutment for the piston (50), and to define its dispensing position, the pump being characterized in that the pump body (10) is provided with an axial annular setback (15) at the radial shoulder (11) so that the active sealing portion (53) of the bottom lip (51) makes no contact with the radial shoulder (11) when the piston (50) is in its dispensing position, so that no axial force is exerted on the active portion (53).

Abstract: A fluid dispenser device comprising a fluid reservoir (10), a pump (20) mounted on the reservoir (10) for selectively dispensing the fluid, and a dispenser head (30) connected to said pump and incorporating a dispenser orifice (31), said device being characterized in that it includes at least two laterally-actuated elements (40, 50) distributed around said dispenser head (30), said laterally-actuated elements (40, 50) being displaced simultaneously in a direction that is approximately transverse to the central axis of the device, and each co-operating with a peripheral edge (11) of said reservoir (10) so as to exert an axial force thereon.

Abstract: An actuating head (12) of a double-acting pump (1) for ejecting a product (38) from a container (2) includes an outlet duct (13a-13d) leading to an ejection opening (16), wherein a closing piece (18) biased by a spring (17) is arranged in the outlet duct. The closing piece (18) directly seals the ejection opening (16) under the force of the spring (17) and the closing piece (18) releases as a result of the pressure exerted when actuating the double-acting pump (1) the flow of the product (38) through the outlet duct (13a-13d) and through the ejection opening (16) against the force of the spring (17).

Abstract: In accordance with embodiments of the present invention, an apparatus includes an actuator with a spray nozzle and an opening adjacent the spray nozzle. The actuator dispenses spray through an orifice in the spray nozzle when the actuator is depressed to operate a pump or an aerosol valve. A wall including the spray opening at least partially surrounds the actuator and the spray nozzle is aligned with the spray opening during dispensing whereby spray exiting the spray nozzle orifice passes through the spray opening. Also included is a nozzle closure, with a first projection and a second projection. The first projection, forming a sealing rim with an inner recess, fits into the opening adjacent the spray nozzle thereby sealing the spray nozzle.

Abstract: The invention relates to a pump for flowable media, particularly a cosmetic pump, provided with a base (1), which can be mounted tightly on the opening of a container, a through-hole (9) in the base (1), which extends from the underside of the base through to its top side, a tube sleeve (12) extending upwards from the top side of the base (1) around the through-hole (9), a guide sleeve (15) likewise extending upwards from the top side of the base, a top part (2) guided on the guide sleeve (15) that can be depressed against a compression spring (16), a compression chamber (23) with an inlet valve (24) and an outlet valve (25), and an outlet channel (33) provided downstream of the outlet valve (25).

Abstract: A hygienic solution dispenser includes a reservoir for a hygienic solution. The reservoir has a wallward side and an opening. A tongue extends along the wallward side and is adapted to secure the reservoir to a mounting fixture. The mounting fixture secures the inventive dispenser to a substrate. A valve seals against the reservoir opening. A pressure actuator in mechanical communication with the valve upon activation discharges solution from within the reservoir onto toilet paper or another application medium. A rectangular cross section reservoir affords a thin profile projecting from the substrate. An injection molded thermoplastic preferably forms a reservoir having a tongue integral therewith.

Abstract: The invention relates to a liquid dispenser of the type comprising a reservoir (R1, R2) provided at its top with an outflow orifice (V) which is closed off by an inlet valve (a) and which opens out into a metering chamber (10) of variable volume, which chamber communicates, via an outlet valve (e), with a discharge duct (c) provided in a dispensing head (T), the dispenser being characterized in that the metering chamber (10) is defined by a wall of a bellows (1) that is elastically deformable, at least in part.

Abstract: A dispenser (1) for filling a to-be-filled part (3) with a hardenable, viscous, pasty compound (6), includes a multi-part housing (21) having telescopingly arranged within each other, telescoping housing parts (22, 23) and a dispensing opening (9), a supply chamber (16) for storing the hardenable, viscous, pasty compound (6), a variable pump chamber (17) for delivering the compound through the dispensing opening (8) and adjoining the supply chamber (16), a cover (18) for covering the pump chamber (17) and displaceable relative to the pump chamber (17) between a first position, in which the pump chamber (17) has an initial volume, and a second position in which the pump chamber (17) has a reduced volume; and a reset spring (32) arranged outside of the pump chamber (17) for biasing the pump chamber cover (18) to the first position.

Abstract: A liquid dispenser includes a container having an opening for receiving a liquid, and a dispenser subassembly having an outlet and a closing member cooperating with the outlet, the closing member being movable between a first closed position whereby the closing member engages the container opening and a second open position whereby the closing member is remote from the container opening. At least part of the dispensing subassembly is preformed on the container and the remaining part of the dispenser subassembly is connectable therewith.

Abstract: The present invention relates to atomizers for administering preservative-free liquids to the cornea or conjunctiva of the eye, with special eye adapters for atomizers and the use of atomizers for ophthalmological administration. The atomizers according to the invention are free from propellant gas.

Abstract: A liquid-candy dispenser having a container and an extendable and rotatable dispensing nozzle sprayer that is adapted to be moved in multi-directions for fun and to permit better dispensing of the candy in children's mouths. The extendable and rotatable dispensing nozzle sprayer has a finger-actuated spray head to activate a fluid pumping unit. The sprayer also includes an elongated tube having one free end adapted to rotate 3600° in a Y-plane with respect to and in fluid communication with the finger-actuated spray head. A dispensing nozzle is affixed to the other free end of the elongated tube.

Abstract: An ovaloid dispensing container is provided which includes an ovaloid bottle and an ovaloid overcap. The bottle is fitted with a fluid dispensing device such as a pump assembly. An oval collar is supported on the bottle and has an outwardly flaring shoulder. The overcap is formed with a surrounding wall and a mouth defining an open end. The surrounding wall tapers outwardly while the mouth defines a downwardly convex perimeter on front and rear faces of the surrounding wall. The shoulder functions as a camming surface against which the overcap perimeter slides to assist in twist-off removal of the cap.

Abstract: The present invention provides a pump (1; 60; 90) for mounting on a receptacle (3), the pump including:

Abstract: A dispenser assembly for dispensing a substance from a receptacle is provided. Preferably the collar therefore comprises outwardly projecting and elongated angled ribs for forming complementary elongated grooves in the outer surface of the ferrule. A method of assembling such a dispenser assembly upon a receptacle is also provided and comprises the important step of allowing the collar to rotate over the outer surface of the ferrule and towards the receptacle, such that the elongated ribs form complementary elongated grooves in the outer surface of the ferrule thereby forming an airtight seal between the dispensing assembly and the receptacle.

Abstract: A actuating head of a double-acting or lift and force pump for ejecting a product from a container includes an outlet duct leading to an ejection opening, wherein a valve closing piece is arranged in the outlet duct. Together with the outlet duct, the valve closing piece forms a check valve which, when the actuating head is actuated, is opened by the pressure of the product and allows the product to flow into a space defined by the inner side of the outlet duct and the circumference of the valve closing piece. This space is connected through at least one transverse groove to the ejection opening. The valve closing piece is elastically deformed by the product pressure when the actuating head is actuated and opens the check valve. The valve closing piece borders against the transverse groove and rests with its rear side against a radially inwardly protruding shoulder of the outlet duct.

Abstract: An improved structure of a soap dispenser head to deliver a fixed amount of soap liquid and to prevent any leakage of soap liquid, essentially comprised of a graded trough on either side of a soap delivery head of a soap dispenser; a soap liquid inlet being provided on either side of the graded trough; a soap liquid outlet being provided at the bottom of the graded trough; a piston penetrating the graded trough, a cap being provided on the top of the graded trough, a ring seat being provided at the bottom of the piston ring of the piston; a coil being inserted on to the bottom of the ring seat, a stop being provided at the lower end of the piston; a retaining hole is provided at the lower end of the piston, a hole being provided on the stop for the retaining to penetrate through the stop and inserted into the retaining hole in the piston thus to position the stop in the lower end of the piston so that when the soap dispenser is depressed for the piston in the soap delivery head to move downward, the ring seat

Abstract: A fluid dispenser device comprising a body (1), a fluid reservoir (3), a dispensing member, such as a pump or a metering valve having a piston or a valve member that is mounted to move axially, which dispensing member is fitted to the reservoir (3), and an actuating element (5) mounted to move between a rest position and an actuating position, for actuating the dispensing member and thus for selectively dispensing the fluid contained in the reservoir (3), said fluid dispenser device being characterized in that the direction in which said actuating element (5) moves is different from, and in particular perpendicular to, the axial direction in which the piston or the valve member of the dispensing member moves, the device further comprising force-regulating means for predetermining the force to be exerted on the actuating element (5) for actuating the dispensing member, said force being constant each time the device is actuated, independently of the quantity of fluid contained in the reservoir (3) and/or of the

Abstract: A fixing device for fixing a dispenser member to the neck (41) of a container (4), device comprising a ring (2) forming an annular abutment web (20) serving to come into abutment against the top of the neck, with a gasket (5) optionally being interposed, and a peripheral skirt (21) serving to surround the neck, the skirt forming tabs (22) defining free ends (220), said fixing device being characterized in that each of the tabs is provided with at least one deformation zone (221, 222, 223), the tabs being deformed inwards when thrust is exerted axially on their free ends.

Abstract: A liquid jetting pump of the present invention is constructed such that an intra container liquid is sucked into a cylinder 3 through a suction valve 9 by moving a vertically movable member 4 up and down, and the intra cylinder liquid is jetted out of a nozzle 29 through a discharge valve 31 from a stem 28. A plurality of ribs 10 are protruded in a peripheral direction from a lower edge part within the cylinder. Engagement recessed portions 11 are formed in inner parts of the upper surfaces of the ribs. A lower edge of a coil spring 38 for biasing the vertically movable member 4 is secured to each of the engagement recessed portions 11, thereby permitting a flow of liquid on both sides of the lower edge of the spring internally externally.

Abstract: An ovaloid dispensing container is provided which includes an ovaloid bottle and an ovaloid overcap. The bottle is fitted with a fluid dispensing device such as a pump assembly. An oval collar is supported on the bottle and has an outwardly flaring shoulder. The overcap is formed with a surrounding wall and a mouth defining an open end. The surrounding wall tapers outwardly white the mouth defines a downwardly convex perimeter on front and rear faces of the surrounding wall. The shoulder functions as a camming surface against which the overcap perimeter slides to assist in twist-off removal of the cap.

Abstract: A dispenser pump e.g. for toothpaste has a plunger (21) connected to a proximal end of an elongate flexible plastics strip (22) which is run slidably along a guide track built into the discharge nozzle (14) of the pump alongside the discharge channel (63). The distal end of the guide track defines a bend which opens through a lateral slot into the discharge channel (63) just inside its external opening. Action of the plunger causes the strip (22) to slide back and forth along the track and round the bend, so that the tip of the strip is moved out of the mouth of the nozzle during dispensing but returns to block it and cut away residual product when the plunger is released.

Abstract: The invention concerns a device for dispensing a dose of liquid or gel products comprising a dispensing head (1) axially mobile mounted on a product reservoir and provided with an outlet conduit (11) and a metering chamber (20) delimited by an intake valve (22) and by a piston (3) whereof the rod (31) is connected to said head (1) and which is equipped with an exhaust valve (32). The invention is characterised in that the rod (31) of the piston (3) extends inside the chamber (20) through a projecting lower end (31a) providing sealed locking of the intake valve (22) when the head (1) is in low position.

Abstract: Pump systems are provided which allow for highly-accurate dose control. The pump systems may be provided with a valve stem or a piston, either having a constant-diameter stroke portion interposed between reduced-diameter portions. At least one stationary sealing member immovably affixed to a pump body is also provided formed to sealingly engage the stroke portion of the valve stem or the piston. The sealing member is also formed to not engage the reduced-diameter portions. As such, the volume of the administered dose is controlled by the stroke length, which, in turn, is a function of the dimensioning of the constant-diameter stroke portion and the dimensioning of the sealing member. Advantageously, with the subject invention, a minimal number of tolerances can be implicated in controlling dosing volume.

Abstract: A container-mounted dispensing pump incorporates an elastically deformable pump wall and elastomeric valves for controlling the flow into and from the pump chamber. A mechanism at the movable end of the deformable pump wall engages the outlet valve to effect positive closure thereof when the actuator is disposed in an extended, shipping position. With the pump actuator placed in the shipping position, the close outlet valve will preclude leakage of the container contents though the pump.