Abstract: A liquid metered dispensing squeeze bottle includes: (a.) a squeezable container having an opening for dispensing liquid therefrom at one end and a bottom at the other end; (b.) a nonflexible trap chamber of a predetermined volume, connected to the opening of the container; (c.) a dip tube, and (d.) a one way valve system at the bottom of the dip tube that includes a leg. There is also a flexion mechanism on one or both of the dip tube and the leg to permit folding of the leg toward the tube for insertion into a standard neck or narrow neck container.

Abstract: A fitment assembly for a peristaltic pump dispenser. The fitment assembly includes a flexible fitment having an upper end with a radically extending lip, a lower end spaced from the upper end, at least a portion of which is conical, and a flexible portion therebetween forming a hollow chamber. A check valve is received in the conical portion of the lower end and includes a lower base, on upper cylindrical wall spaced from the lower base, and a plurality of legs extending between the lower base and the upper wall wherein pressure on the flexible portion of the fitment will force fluid in the hollow chamber between said lower base and said upper wall of said check valve and out of the lower end of the fitment.

Abstract: A dispenser for dispensing metered amounts of liquid or paste-like products has a cylindrical reservoir having an open bottom and an upper end with an intake valve. A plunger is arranged axially movably in the cylindrical reservoir and closes off the open bottom of the cylindrical reservoir. A dispensing head is arranged on the upper end of the reservoir. The dispensing head has a bell-shaped dispensing pump having elastic sidewalls and a pump head with a through opening having an outlet valve. The dispensing pump together with the intake valve and the outlet valve delimits a closed pump chamber. The outlet valve is manufactured as a monolithic part of the pump neck such that with a simple working step the entire through opening of the pump neck is closable by a valve flap of the outlet valve.

Abstract: A liquid discharge pump possesses a resinous bellows material 6, a resinous inflow valve mechanism 4, a resinous outflow valve mechanism 5, a first pressing portion 11 which moves a valve portion in the outflow valve mechanism 5 to open the inflow valve mechanism when a nozzle head 2 is pressed, and a second pressing portion 12 which presses the bellows material 6 from a stretched position to a folded-up position when the nozzle head 2 is pressed.

Abstract: A pump may comprise a body, and a member movable relative to the body substantially along an axis of the pump. A pumping chamber may be defined by at least the body and the member. The pumping chamber may comprise a peripheral wall. The pump may further comprise an elastically deformable membrane comprising a first portion and a second portion. The first portion may be axially fixed relative to the peripheral wall, as well as being in contact with an inner surface of the peripheral wall at least in the presence of overpressure in the pumping chamber, and configured to place the pumping chamber in selective communication with at least one inlet passage. The second portion may be configured to place the pumping chamber in selective communication with at least one outlet passage.

Abstract: The invention relates to a dispensing device which can be used to dispense a metered volume of a flowable material such as a liquid, gel or paste product from a reservoir. The invention provides a pump for dispensing a flowable material from a container, the pump including a pump body which is deformable between a rest configuration and a squeezed configuration, the internal capacity of the pump body being substantially reduced in the squeezed configuration compared to the rest configuration.

Abstract: An adaptor assembly is selectively received in a dispenser so that the dispenser may selectively receive first and second types of cartridge and pump assemblies. The dispenser is configured to receive a cartridge and pump of a first type, and the adapter assembly, when selectively received in the dispenser, adapts the interior of the dispenser to receive a cartridge and pump of a second type.

Abstract: An easy and quantitative liquid dispenser is disclosed. The dispenser includes a regulator cock, an upper cover and a container. The container has a cylinder mounted on a bottom thereof, the cylinder is connected with the container, and a closure is mounted between the container and the cylinder. The upper cover has an outlet properly mounted thereon, a safety cover is connected to the upper cover through a rim of the upper cover and is covered on the outlet, and furthermore, a guiding pillar is downwardly extended from a bottom of the upper cover. The regulator cock is a plate which has a pillar extended from a bottom thereof, a circular prominence is mounted on a bottom end of the pillar, and a guiding hole is centrally penetrated through the pillar and the plate. After assembling the components above, the quantitative liquid dispenser according to the present invention can be formed so as to accurately measure and pour out the liquid.

Abstract: A dispenser pump has a fixed spout (15) on an upper component (10) which is rotatable relative to a lower component (11) adapted to be fitted to a container (not shown). For transport and storage the spout (15) is rotated so that its inner opening is obturated by the distal end of an arm (13) of the lower component which circumferentially divides its discharge compartment (31). Simultaneously an air opening (22) of the upper component is obturated by the arm (13) which also circumferentially divides an annular air chamber (32) below the discharge compartment (31). The compartment (31) and air chamber (32) are separated by an annular barrier seal (23) in rubbing contact with the internal wall of the upper component (10). By this provision the danger of leakage is so much reduced that it is not necessary to provide a mechanical lock for the pump when the dispenser is closed.

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: A bag is provided for containing a liquid intended to be supplied in a controlled manner to some other site, for example to a medical patient. The main bag portion has a pair of overlying side walls joined together around their edges, the side walls having integral extensions which together define an outlet region in communication with the interior of the main portion of the bag. The extensions are bonded together to define a tube-like passageway extending throughout the outlet region from the interior of the bag. The extensions are adapted to permit the connection thereto of a peristaltic pump device co-operable with the tube-like passageway to control the out-flow of liquid from the bag.

Abstract: A device (4) for the controlled delivery of a product (P), such as liquids and/or creamy substances and/or flowable substances within a container (1), in such a way that in the delivery position the product (P) column to be delivered is in a raised position with respect to the device (4), said container (1) being comprised of a material, deformable by squeezing and able to energetically returning to its original shape, once the squeezing action is interrupted, and being provided with a neck (15), and optionally a cap element (2), coupled with the neck (15), and provided with an outlet opening (3) for the product to be delivered toward said device.

Abstract: A valve device for metering a fluid for metering a urea-water solution for the aftertreatment of exhaust gases from internal combustion engines, which contains elements that flex or are compressed under high pressure so that the volume of the working chamber can change in order to limit high pressures, which arise in the event of a phase change of the fluid to be metered, to a non-damaging intensity.

Abstract: A dispenser pump has a fixed spout (15) on an upper component (10) which is rotatable relative to a lower component (11) adapted to be titted to a container (not shown). For transport and storage the spout (15) is rotated so that its inner opening is obturated by the distal end of an arm (13) of the lower component which circumferentially divides its discharge compartment (31). Simultaneously an air opening (22) of the upper component is obturated by the arm (13) which also circumferentially divides an annular air chamber (32) below the discharge compartment (31). The compartment (31) and air chamber (32) are separated by an annular barrier seal (23) in rubbing contact with the internal wall of the upper component (10). By this provision the danger of leakage is so much reduced that it is not necessary to provide a mechanical lock for the pump when the dispenser is closed.

Abstract: A liquid container, comprising a discharge route for discharging contents, the discharge route further comprising a flow velocity control passage having an opening area of such a degree that it is sealed by the contents themselves by the surface tension of the contents under atmospheric pressure, wherein, when the contents are discharged, the flow velocity of the contents passing the flow velocity control passage in the direction of the passage once becomes zero, and the contents are discharged from an outlet after filling the main passage of the discharge route provided on the outlet side of the flow velocity control passage.

Abstract: Mechanically pressurized dispensing systems are disclosed that are manually charged by the user and that dispense substances from a pressurized dispenser as an aerosol. The dispensing system comprises in various embodiments mechanical pressurization assemblies, and particularly an actuator assembly and a collar cap assembly. Preferred embodiments incorporate a spindle and a piston to mechanically charge the dispensing system when an actuator housing of the actuator assembly is manually rotated. Other dispenser systems are disclosed providing a threaded piston utilized in the mechanical charging of the dispensing system. Methods of pressurizing dispensing systems and other methods are also disclosed.

Abstract: A kit for dispensing liquid includes a cap for attachment to a container, the cap defining an outlet. An inner tube is attached to the cap for insertion into the container, a first end thereof being in communication with the outlet and a second end telescopically extending below the container's liquid level. A pump is situated on the cap for selectively pumping air into the container through the inner tube. In one embodiment, a cap vent enables air to be drawn into the pump for transfer into the container so as to urge liquid to flow through the inner tube to the outlet. In another embodiment, a cap vent is positioned to maintain a continuous flow of liquid through the inner tube after the pump has initiated a siphon effect. In either embodiment, an outer tube connects the cap outlet with a dispensing mechanism for selectively dispensing liquid.

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: The present invention relates to dispensing device for dispensing portions of liquid foodstuff from a foodstuff container. A pump device (5) includes a pump chamber (10) and a connecting pipe (7) or similar for connecting the foodstuff container (2) to the pump chamber (10) and a pump means (14) forming part of the pump device (5) is designed and can be affected such that said pump means (14) can generate a vacuum in the pump chamber (10), connecting pipe (7) and foodstuff container (2) for drawing foodstuff (4) out of said foodstuff container (2) to the pump chamber (10). At least portions (18) of a through-flow passage (13) for foodstuff (4) in the connecting pipe (7) taper in which the flow direction (S) in which food-stuff (4) flows through said through-flow passage (13). The connecting pipe (7) has an inlet pipe (11) which can be pressed through a flexible wall (3) of the foodstuff container (2) and be connected to a connecting member (21) therein.

Abstract: A fluid dispenser comprising: a reservoir (1) serving to contain fluid and defining an actuating wall (14); and a dispensing orifice (20) via which the fluid is dispensed each time the wall (14) of the reservoir (1) is actuated; the reservoir (1) further containing a pump (3) defining a pump chamber (31) provided with an inlet valve (32) for communicating with the reservoir (1) and with an outlet valve (33), the pump (3) including a pusher (34) which is pushed in order reduce the volume of the pump chamber, said pusher (34) being disposed below the actuating wall (14) of the reservoir; said dispenser being characterized in that a delivery duct (21) connects the outlet valve (33) of the pump (3) to the dispensing orifice (20).

Abstract: A method for manufacturing in which a fluent material is dispensed to an article such as a container from a flexible bag The fluent material is dispensed directly to the container without any intervening structure which contacts the fluent material. Accordingly, the apparatus can be constructed of less expensive materials and does not require frequent cleaning. The apparatus acts on the bag to dispense and does not act on the fluent material. Thus, the apparatus has particular application where aseptic conditions need to be maintained such as in the packaging of the food and medicine The flexible bag is preferably formed with multiple outlets permitting simultaneous dispensing to multiple containers.

Abstract: The invention concerns a dispensing device comprising a fluid product pump (1) defining: a pump chamber (112) with variable volume; an intake valve (14) allowing the fluid product to penetrate into the pump chamber; and an outlet valve (16) allowing the pressurized fluid to exit from the chamber; a dispensing orifice (195) downstream the outlet valve, and the outlet valve comprising a valve seat (126) and a mobile valve member (16) elastically stressed on said seat. The invention is characterized in that the mobile valve member (16) forms piston means for delivering the fluid product downstream towards the dispensing orifice.

Abstract: A dispenser drain attachment includes a threaded cap having a tapered drain socket and an associated drain tube. The interior of the drain tube has a double diaphragm which seals the drain tube, as well as an elastic gas bellows for dispensing liquid portions by alternating deformation of the diaphragm disks of the double diaphragm, which acts as a one-way valve. Such deformation is the result of pressure conditions which change when the gas bellows is compressed and then again released. The dispenser drain attachment is assembled from only two one-piece structural parts, each of which is produced by a two-component injection molding procedure.

Abstract: Several embodiments of small volume containers for use to feed liquid to a gravity feed liquid spraying device. Each container comprises a body portion having axially spaced first and second ends, means for closing the second end of the body portion, and a first adapter attached to the first end of the body portion. The body portion, means for closing, and first adapter have inner surfaces defining a cavity in the container having a small volume. The adapter comprises an engagement portion having a through opening communicating with the cavity in the body portion, which engagement portion is adapted for liquid and air tight engagement an inlet port of the spraying device. The container includes vacuum restricting means for restricting vacuum within its cavity as liquid moves out of its cavity into a spraying device through the opening in the first adapter with the second end of the container uppermost.

Abstract: The invention provides a pump of the type comprising a body (1) having a bottom portion for communicating with a dip tube (2) via an admission valve and a top portion for connection to the edge of a container (R) and itself containing a metering chamber (10) closed in leaktight manner on top by compression means provided with an exhaust valve and with a return member, and suitable for being actuated by manual thrust being applied to a dispenser head (T) provided with a delivery duct (C), the pump being characterized in that said return member comprises an elastically deformable internal diaphragm (3) carried by the dispenser head (T) and co-operating with a rigid cup (4) fixed beneath said head (T) and co-operating with said diaphragm (3) to define the metering chamber (10).

Abstract: A mechanically pressurized aerosol dispensing system comprising a cap which houses a piston, an actuator moveably attached to the cap, forming together with the cap a dispensing head assembly, and an expandable elastic reservoir. The system is fitted over a standard container holding a liquid product, and includes a dip tube assembly to draw liquid into the dispensing head assembly, where the contents are released through the dispensing head assembly, via the aerosol nozzle and valve. A twist of the threaded cap raises a piston, thereby opening a charging chamber within the dispensing head assembly. This creates a vacuum with the resulting suction pulling the product up through the dip tube to fill the charging chamber. Twisting the cap in the opposite direction lowers the piston in a downstroke which closes the charging chamber, forcing the product into the expandable elastic reservoir where it is then discharged through the nozzle.

Abstract: An apparatus and method of delivering adjustable metered doses of a composition from a squeezable container. An embodiment of the apparatus is a metered dose dispenser including a body that includes an inlet channel with a first opening, an outlet channel with a second opening, and a dosing wheel seat. The dosing wheel seat is a cavity defined by the body. The dosing wheel seat communicates with the inlet channel, via the first opening, and with the outlet channel, via the second opening. The metered dose dispenser also includes a removable, rotatable dosing wheel is situated within the dosing wheel seat when the metered dose dispenser is in use. The dosing wheel includes a dosing channel, which may be aligned with the inlet channel and the outlet channel. A plunger is movably situated in the dosing channel, the plunger does not fit through either the first or second opening.

Abstract: A pressurizing beverage dispenser removably attaches to the threaded neck of a container and includes a main body having a handle portion and a head portion. A valve spout on the head portion is moveable between a closed position and an open position. A hand operated squeeze bulb pump fitted to the handle delivers air through the discharge opening and pressurizes the container interior when the valve spout is closed. The handle portion can be structured and disposed to hold the squeeze bulb in a manner which prevents undesirable movement of the squeeze bulb and blockage of airflow to the container.

Abstract: A method and package for controlled metered dispensing of a fluid product contained in the package having a metered dispensing system, each time the package is opened or uncapped are disclosed. By the present method and package, the maximum amount of product that can be dispensed is limited to a single metered dose after each uncapping of the package. Specifically, the metered dispensing system is configured to allow dispensing of only a single metered dose of a liquid, viscous liquid, gel, paste, or semi-solid product contained in the package and to prevent further dispensing of additional doses of product until at least one specific and deliberate step is taken that re-activates or re-engages the dispensing system. Such deliberate step is preferably one that occurs through natural use of the package, such as re-capping the open package after one single dose has been dispensed. Only after the open package has been re-capped can the next dose of product be available for dispensing.

Abstract: A slurry delivery system for a chemical mechanical polisher, comprising a bag housing fitted with a slurry intake conduit and a slurry outlet conduit. An expandible and collapsible pump bag is provided in fluid communication with the conduits inside the bag housing, and the interior of the pump bag is sealed from the bag housing. As an air/vacuum controller withdraws air from the housing, the pump bag enlarges and slurry is drawn into the pump bag. As the air/vacuum controller subsequently introduces air into the housing, the pump bag collapses and the slurry is expelled from the pump bag through the slurry outlet conduit. A purge valve is provided upstream of the pump bag to remove air bubbles from the slurry and vent the air to the atmosphere.

Abstract: A metering device for fluid products, having a pump body equipped with suction tube and applied by means of a cap to a bottle or the like containing a fluid product to be dispensed, an elastically deformable pushbutton, applied superiorly to the pump body and defining therewith a metering chamber provided with a n intake valve and an exhaust valve, a dispenser mounted on the cap and provided with a spout comprising a conduit for the emission of the content of the bottle communicating with the intake valve, at least a compensation channel, which replaces the extracted fluid with air coming from the exterior, provided, in said dispenser, pushbutton and pump body.

Abstract: The invention relates to a delivery pump to be coupled to the neck of a container filled with a liquid to be delivered comprising: a hollow body defining a suction and compression chamber for the liquid having a suction duct for the liquid, a tight piston sliding in the hollow body, a delivery duct for the liquid communicating with the suction and compression chamber; calve mechanism adapted to regulate inflow and outflow of liquid into and from the suction and compression chamber, elastic mechanism arranged between the tight piston and the hollow body. The delivery pump comprises first constraint mechanism fixed to the hollow body and selectively cooperating with second constraint means fixed to the tight piston to define the stroke of said tight piston. The stroke can be varied according to the mutual position of the first and second constraint mechanism.

Abstract: A fluid flow control valve for use in a fluid applicator tip which is connectable onto an open end of a resiliently squeezable bottle. The valve includes a valve body defining a flow aperture formed centrally therethrough. A separate sealing ball is held in coaxial alignment and spring biased seated retention against the flow aperture and oriented downstream of fluid flow through the flow aperture from the open end of the container. The valve is thus normally closed and opens or unseats automatically to permit fluid to flow through the fluid aperture when the bottle is held in at lease a somewhat inverted orientation and squeezed to increase fluid pressure against the spring biased sealing ball. The sealing ball automatically reseats when there is no substantial pressure within the bottle, preventing virtually all fluid flow and leakage.

Abstract: A lock-out mechanism for use with a dispenser having a back plate and a cover hingedly attached thereto for receipt of a refill container with an attached pump. The cover carries a pressure member in the form of a push bar having a pump activating projection which normally activates the pump by engaging a collapsible portion thereof when the push bar is activated and the refill cartridge and pump are properly seated within the dispenser. The push bar also carries an interference rib on the push bar which projects therefrom and engages a non collapsible portion of the pump and prevents the pump activating projection from engaging the collapsible portion of the pump when the pump is misseated in the dispenser.

Abstract: A dispenser for dispensing metered amounts of liquid or paste-like products has a cylindrical reservoir having an open bottom and an upper end with an intake valve. A plunger is arranged axially movably in the cylindrical reservoir and closes off the open bottom of the cylindrical reservoir. A dispensing head is arranged on the upper end of the reservoir. The dispensing head has a bell-shaped dispensing pump having elastic sidewalls and a pump head with a through opening having an outlet valve. The dispensing pump together with the intake valve and the outlet valve delimits a closed pump chamber. The outlet valve is manufactured as a monolithic part of the pump neck such that with a simple working step the entire through opening of the pump neck is closable by a valve flap of the outlet valve.

Abstract: A dispenser (10) for flowable, viscous material (52) includes a housing (12) comprising a main body (18) and door (20), and a reservoir (50) for the material (52) with an elongated, synthetic resin deformable outlet tube (80) presenting an outlet end (82) coupled to the reservoir (50). A flow-controlling assembly (16) including a tube-engaging element (84, 132, 150, 158) and an actuator linkage assembly (86, 130, 144, 154); these components together with a pneumatically operated piston (54) within reservoir (50) allows precise on-off operation of the dispenser (10). In the flow-permitting position, the element (84, 132, 150, 158) is adjacent the tube (80).

Abstract: The invention provides a pump of the type comprising a body (1) having a bottom portion for communicating with a dip tube (2) via an admission valve and a top portion for connection to the edge of a container (R) and itself containing a metering chamber (10) closed in leaktight manner on top by compression means provided with an exhaust valve and with a return member, and suitable for being actuated by manual thrust being applied to a dispenser head (T) provided with a delivery duct (C),

Abstract: Packaging for a paste product is provided in the form of a flexible, closed storage container which has a sealable outlet opening on the underside. The opening is adapted for connection to a metering device which conveys the product using negative pressure, permitting substantially complete emptying of the container. To this end, the flexible storage container is configured with a thinner wall in its upper section than in its lower section.

Abstract: The invention relates to a container for fluids having a volume (2a) which can be filled with a fluid, and emptied by pressurizing the fluid by subjecting it to internal gas pressure. The invention is characterized in that the container has a valve device (7a) for filling the volume (2a) with the fluid, while the internal gas pressure is generated by compressing a gas trapped in the container (1a). It is thus not necessary to fill the receptacle with pressure gas separately.

Abstract: A layered fluid circuit includes first and second panel sections formed from sealed sheets of flexible material. A pattern of seals is formed in the first panel section to define a first fluid circuit. A pattern of seals is formed in the second panel section to define a second fluid circuit. The flexible sheets are aligned to place the first and second panel sections in a relationship with the first fluid circuit overlaying the second fluid circuit. The layered fluid circuit can be placed in a tray for use. Defined operating regions can be formed in one or both fluid circuits, such as an in-line clamping regions, in-line pump tubes, or in-line sensor regions, or in-line fluid holding compartments, or combinations thereof.

Abstract: A touch free dispenser includes a sealed collapsible bottle assembly for containing a dispensable fluid, the assembly including a collapsible container with a depending coupler, a fluid pump disposed within the coupler and a dispensing tip, in fluid communication with the pump and container, for both activating the pump and dispensing the fluid. A support frame is provided for removably receiving the bottle assembly with the container supported on a topside of the frame, the frame having an opening therethrough for enabling the tip to dispense fluid therethrough. A pump actuator, disposed on a bottom side of the frame is provided for engaging the tip in order to actuate the pump. A driver assembly, disposed on the frame bottom side operates the pump actuator in response to the electronic signal, and a controller senses a presence of a user's hand proximate the dispensing tip and provides the electronic signal to the driver.

Abstract: A pump for use with a device for containing and dispensing a product may include a single-piece vessel of unitary construction defining a variable-volume chamber. The vessel may include a first wall and a second wall. The pump may include an inlet slit on the first wall, the inlet slit being configured to open one way in response to a decreased pressure in the chamber. The pump may also include an outlet slit on the second wall, the outlet slit being configured to open one way in response to an increased pressure in the chamber. The vessel may be configured to deform from a first position occupying a first volume to a second position occupying a second volume in response to a pressure applied to the vessel. The pump may be used in combination with a container to form a device for containing and dispensing a product.

Abstract: A water gun (10) is provided having a storage tank (18), a expandable pressure tank (19) having an elastic bladder (30) encased within an outer shell (29), and a pump (32) for conveying liquid from the storage tank to the expandable pressure tank. The conveyance of liquid into the expandable pressure tank causes the liquid to be pressurized by the biasing force of the elastic bladder. The pressurized liquid is released through a nozzle (21) coupled to the expandable pressure tank by actuation of a trigger (17).

Abstract: An emulsion-dispensing structure includes a housing, a collar cap, an engagement cap, a plunger, and a plastic spring. The plunger is provided with an outer threaded portion and is fitted into a connect stem such that the outer threaded portion is engaged with an inner threaded portion of the connect stem. The dispensing structure is ready to dispense the emulsion from a container at such time when the plunger juts out of the connect stem.

Abstract: A control mechanism for controlling the flow of a particulate material through a conduit and comprises a bladder mounted within the conduit that is inflatable between a first, deflated state and a second, inflated state. In its first, deflated state the bladder allows the particulate material to flow freely through the conduit, and in its second, inflated state the conduit is substantially blocked by the inflated bladder and no particulate material may pass. An alternate embodiment of an exteriorly mounted control mechanism comprises a stopper that is moved between a first, open position away from an open end of the conduit and a second, closed position in which the stopper is in sealing contact with end of the conduit.

Abstract: A spray gun includes a main body which is provided in the interior with an upright tube, a guide tube, and a compression structure by which a fluid contained in a container is dispersed in the form of a spray via a spray head. The compression structure includes a compression tube located in the interior of the main body, and an elastic tube compressibly received in the compression tube such that the elastic tube is compressed by a connection rod which is actuated by a trigger lever pivoted at one end to the main body.

Abstract: A system for providing portions of a substance, in particular a liquid or pasty substance, includes a bag filled with the substance which is to be dispensed, a storage chamber for holding a store of substance which is to be dispensed being delimited in the bag, which store includes a plurality of portions, preferably a large number of portions, of the substance which is to be dispensed, and a dispensing chamber which can be connected to the storage chamber via a connection in the bag also being delimited in the bag, and the bag being provided, at the dispensing chamber, with an outlet opening for dispensing the substance from the bag, a dispensing device which has a housing in which there is a space for accommodating the bag, which space includes a section for accommodating the storage chamber of the bag and a section for accommodating the dispensing chamber of the bag, the system being designed to supply in each case one or a few portions of the substance to the dispensing chamber from the storage chamber, t

Abstract: A delivery system (10) includes a tube (11) having a central passageway (12) and a dispensing orifice (22) and a venting orifice (23, 50). An amount of the material to be dispensed is drawn into the central passageway (12), after which the venting orifice (23, 50) is closed off, causing the material within the central passageway (12) to remain due to unequal pressures between the central passageway (12) and the atmosphere, until the venting orifice (23, 50) is again uncovered. A squeeze pump (40) may be positioned between the dispensing orifice (22) and the dispensing orifice (23) to be pinched, thereby drawing liquid into or dispensing liquid from the central passageway (12).

Abstract: A dosing nozzle is intended to be fitted onto a container containing a product. The nozzle comprises a dosing cavity which can move between a first position and a second position in which it occupies a minimum volume, the cavity being delimited by first and second pistons capable of sliding inside a fixed body. The first piston is fixed to a closure member capable, selectively, of closing off/exposing at least one outlet of the dosing cavity. During a first phase of the movement of the dosing cavity, the first piston is driven by through the effect of the pressure of the product being exerted on the second piston and, during a second phase of the movement of the dosing cavity, the first piston is driven by the pressure of the product being exerted on the first piston, the second piston being immobilized in translation during this second phase.