Abstract: A metering device meters and dispenses of a known volume of a liquid product. The metering device includes a receptacle and a moveable slug sized to fit within the receptacle, leaving a remaining volume within the receptacle equivalent to a desired amount of a liquid product to be dispensed. Application of a vacuum at the outlet end draws the known volume of liquid product out of the receptacle and causes the moveable slug to move from a first position at the inlet end of the receptacle to a second position at the outlet end of the receptacle. At the same time, additional liquid product is drawn in via the inlet aperture. When the vacuum is removed, the slug returns through the additionally drawn-in liquid product back to the first position.

Abstract: An exemplary foam dispenser includes a housing, a plate located in the housing, a first dispensing wheel located proximate the plate. The first dispensing wheel has a plurality of pinch members and is rotatable about an axis. The exemplary dispenser includes a second dispensing wheel located proximate the plate. The second dispensing wheel having a plurality of pinch members and rotatable about the same axis as the first dispensing wheel. Rotation of the first dispensing wheel is configured to pinch a first flexible tube against the plate and to move a first liquid through the first tube; and rotation of the second dispensing wheel is configured to pinch a second flexible tube against the plate and to move a second liquid through the first tube. The exemplary dispenser includes a motor for rotating the first and second dispensing wheels and a motor controller for starting and stopping the motor.

Abstract: The disclosure relates to a system for simultaneously dispensing liquids from multiple sources, wherein the liquids are released through a single spout and are mixed together during the dispensing process. The disclosure further discloses an adaptor that has a dispensing aperture, a body, and first and second members that actuate the spouts substantially simultaneously to allow fluid flow between the first and second liquid sources and the first and second tap spouts through the adaptor body and out the dispensing aperture, which may have a spout. The invention also relates to a method for simultaneous dispensing and mixing of liquids. The liquids may have substantially the same or substantially different viscosities and may be mixed in equal or different volumes. The invention has particular applicability to bag-in-box systems.

Abstract: A dual-chambered beverage container in the form of a shot glass. The interior of the glass is bisected via a hinged divider flap, creating two separate chambers within the glass. The upper chamber holds a first beverage, preferably a shot of hard liquor, while the bottom chamber holds a volume of a second beverage, such as soda or juice. When the shot glass is in a resting position, the divider flap is closed, segregating the beverages in their respective chambers. A user begins to drink the first beverage, the hinged diver flap will slowly swing open, allowing the second beverage to flow out of the bottom chamber, through the upper chamber, and into the user's mouth. Thus the user experiences the taste of the shot of hard liquor only briefly before consuming the chaser beverage.

Abstract: A method of generating ozone containing fluid comprising: drawing atmospheric air into an air compartment, generating ozone within the air compartment from air in the air compartment by conversion within the compartment of oxygen in the air within the compartment into ozone to form ozonated air, discharging the ozonated air from the air compartment, mixing the ozonated discharged air with a flowable fluid to form a ozonated fluid-air mixture, and passing the ozonated fluid-air mixture out a discharge outlet. Preferrably the method is carried out in a dispenser utilizing a piston pump to draw air through a corona discharge ozone generator and to draw liquid from a liquid reservoir and simultaneously pass both the ozonated air and liquid through a foam generator to generate foam.

Abstract: Proposed is a dispenser for discharging at least one flowable component from a cartridge. The dispenser comprises a cartridge holder (110) and an advancing element (120) that is slidable therein. A cartridge (200) can be axially inserted into the cartridge holder against a direction of advancing (V). In order to axially fix the cartridge, a rotating element (140) has been provided on the cartridge holder. In a first orientation the cartridge can be slid into the cartridge holder against the direction of advancing, while in the second orientation the rotating element axially fixes the inserted cartridge. Furthermore, in a third orientation the rotating element can be rotatable on the rotary axis in order to open at least one outlet opening of the cartridge.

Abstract: A refrigerator is provided which includes a cabinet. A first compartment and second compartment are disposed within the cabinet. A first door provides access to the first compartment and a second door provides access to the second compartment. A beverage dispensing system is disposed within the cabinet. The beverage dispensing system has a fluid line, a fluid enhancement line, and a cleaning subsystem for cleaning the fluid component line and the fluid enhancement line.

Abstract: The present invention provides a fluid storage and dispensing system for an organic soil amendment concentrate or fertilizer, comprises a storage tank, which comprises a fluid inlet and a fluid outlet, wherein the storage tank is refrigerated, a first flow meter connecting the fluid outlet of the storage tank on one end and a product tank on the other end, a second flow meter connecting to a water supply line on one end, an eductor connecting to the second flow meter on one end and the product tank on the other end, wherein the a concentrate stored in the storage tank is metered in via the first flow meter and mixed in the product tank with water metered via the second flow meter. As one aspect of the invention, the storage tank comprises interconnected holding tanks that are re-circulated. At least one water tank may be included between the water supply and the second flow meter.

Abstract: A dispensing assembly and method for dispensing a mixture of a first fluid component and a second fluid component. The dispensing assembly generally comprises a container coupled with a nozzle in a unique manner to achieve a mechanical and fluid connection. More specifically, the container includes a first chamber and a second chamber. The first and second chambers are adapted to respectively hold the first and second fluid components. The nozzle has an inlet end and an outlet end. First and second connecting elements are located at the inlet end of the nozzle. Another mating pair of connecting elements, i.e., third and fourth connecting elements, of the container respectively communicate with the first and second chambers. The first and second connecting elements are respectively capable of being removable coupled to the third and fourth connecting elements to establish fluid paths from the first and second chambers into the inlet end of the nozzle.

Abstract: A mixing nozzle assembly for mixing and dispensing fluids includes a nozzle body having an inlet for receiving fluids and an outlet for dispensing fluids. A mixing element is positioned in the nozzle body and is configured for mixing the fluids. A valve member extends through the mixing element. The valve member is configured to selectively open and close the outlet.

Abstract: A dispenser (10) for dispensing flowable materials has a container assembly (12) having a dividing wall (19). A first chamber (18) and a second chamber (20) are defined in the container assembly (12). The first chamber (18) is configured to contain a first flowable material (M1) (140) and the second chamber (20) is configured to contain a second flowable material (M2) (142). A membrane (34) is positioned in the container and cooperates with the dividing wall (19) to enclose the first and second chambers (18, 20). The membrane (34) has a first section (132) having a first weld seam (148) and a second section (134) having a second weld seam (150). The first section (132) is separated from the second section (134) by a non-rupturable member (33). Rupture of the membrane (34) allows the flowable materials into a third chamber (42) in which the flowable materials mix to form a mixture, and from which the mixture is dispensed.

Abstract: A dispensing assembly includes a cartridge for containing a fluid and a mixer for mixing and dispensing the fluid. The cartridge includes a locking flange or wall and the mixer includes a locking latch configured to snap into and out of engagement with the locking flange. To this end, the mixer and the cartridge are coupled and uncoupled by a snap-on and snap-off engagement that does not require relative rotation of the mixer and the cartridge. The locking latch also includes a latch release mechanism such as a squeeze handle, a peel handle, or a locking ring for forcing the locking latch into and out of engagement with the locking flange. As a result, the connection of the mixer and the cartridge is a quick and easy process and cross contamination of fluids in multiple fluid cartridges is avoided.

Abstract: A cartridge is provided having at least one reception chamber (2), which extends in the longitudinal direction, for a medium to be dispensed, having an end face (4) and a cartridge wall (3) which bound the reception chamber (2) and which are injection molded in one piece, with the end face (4) having an outlet for the medium, and with the cartridge wall (3) having a first film (6) at its inner side bounding the reception chamber (2) which extends over the total cartridge wall (3) and is non-releasably connected to the cartridge wall (3). A method of manufacturing such a cartridge as well as a multicomponent cartridge are furthermore provided by the invention.

Abstract: A dispensing assembly and method for preventing a lead-lag condition between first and second fluid components forming a mixed fluid includes a nozzle and a mixer insert connected to first and second barrels respectively containing the first and second fluid components. The nozzle has a nozzle inlet that includes first and second cavity portions. The mixer insert is positioned at least partially within the nozzle inlet to collectively define respective first and second passages. The first and second passages are adapted for directing the first and second fluid components into a nozzle bore of the nozzle for forming a pre-mixed fluid according to a predetermined ratio. The nozzle is further adapted to mix the pre-mixed fluid for dispensing the mixed fluid from the nozzle.

Abstract: A fountain beverage dispenser for constituting a beverage by mixture of a beverage syrup and a diluent for the syrup is characterized by use of a highly concentrated beverage syrup supply and at least one diluent and syrup blending station for diluting the highly concentrated syrup with diluent before the diluted syrup is mixed with diluent in the final mixture of syrup and diluent delivered to a dispensing nozzle.

Abstract: A wall mounted dispenser for dispensing a mixture of water and liquid chemicals which may be used as a separate dispenser or in combination with other like dispensers. The dispenser of this invention includes several backflow preventers to ensure that the water supply will not become contaminated during backflow problems.

Abstract: An anti-leakage liquid soap valve structure includes a liquid soap conduit, an air conduit and a foam discharging tube. The liquid soap conduit includes a soap entering tube for receiving liquid soap, a soap discharging tube communicating with the soap entering tube and having a liquid soap chamber, a liquid soap exit, and a soap discharging valve. The soap discharging valve includes an elastic washer disposed at the liquid soap exit, and a pressing member to press against the elastic washer. The air conduit includes an outer housing forming an air chamber with the liquid soap conduit, an air exit located at one side of the air chamber, and an air supply valve linking with the soap discharging tube. The foam discharging tube includes a gas-liquid mixing chamber located at the liquid soap exit and the air exit, and a foam exit communicating with the gas-liquid mixing chamber.

Abstract: A mixing chamber for two fluid constituents is disclosed which provides improved mixing before the mixture is pushed through a mesh insert for the production of foam. Foam production using air and liquid is the basis of the exemplary embodiment though the disclosed mixing chamber could be used for any two fluid constituents. A single stream of air is diffused into a plurality of smaller streams of air. The single stream of liquid is directed into an annular sleeve resulting in a thinner wall of liquid flow as compared to the entering liquid stream. This annular sleeve of a thinner wall of liquid flow surrounds the plurality of smaller streams of air. In a second embodiment, there are individual streams of liquid which are directed inwardly toward the individual streams of air. The mixing chamber construction is disclosed herein can be used for any two fluid constituents which would benefit for more thorough mixing.

Abstract: The dispensing assembly comprises a double cartridge having two storage containers with bags placed therein, a mixer that is connectable to the cartridge, and an opening means acting upon the bag. The opening means is arranged on the mixer housing and rotatable with respect to the cartridge and in one exemplary embodiment has a cutting member with two knife-edges that are arranged essentially parallelly to and spaced apart from the longitudinal axis and provided with cutting edges. Thanks to the rotatable knife-edges, such a cutting member allows a clean and predetermined opening of the bags and a dispensing operation with minimum pressure losses and lost volumes.

Abstract: A fluid container unit including: a container coupling for coupling a supply/discharge port of a first container with a supply/discharge port of a second container; a single nozzle member having a nozzle tube; a connection cap having a first end for holding a base portion of the nozzle member and a second end for covering one side of the container coupling by fitting around an outer periphery thereof; an intermediate adaptor having a pair of pusher elements facing the first and the second supply/discharge ports, respectively; and a supply/discharge port opening mechanism for moving the intermediate adaptor toward the container coupling and opening the supply/discharge ports by the pusher elements. The pusher elements are movably held in a direction along a longitudinal axis of the nozzle tube in the connection cap.

Abstract: A method of measuring or dosing dry mixture ingredients includes providing separate flow channels for ingredients. The flow channels including at least a first flow channel and a second flow channel configured such that the first flow channel is at least partially disposed around the second flow channel. The first flow channel may include an outer concentric metering screw and the second flow channel may include an inner concentric metering screw. The method further including providing a first material to the first flow channel and a second material to a second flow channel, wherein one of the first and second materials comprises a single dry ingredient and the other of the first and second material comprises multiple dry ingredients. The materials are advanced through the channels to a shared exit where a mixing zone is provided.

Abstract: An atomizer delivery manifold or spray head with an adjustable spray pattern tip is provided. The adjustable spray pattern atomizer is especially useful for delivery of fibrin glues, and enables a fluid admixture to be applied precisely to a specific site in a wide range of spray patterns.

Abstract: Internally pierced formed blisters containing fluid compositions for use in devices to produce a spray or mist delivery of the compositions include internal piercing nozzles that can have significantly reduced channel volume to increase pressure of the fluid forced through the nozzle and provide finer control of spray geometry.

Abstract: A pumping system comprises an internal combustion engine, a generator, a pumping unit and a heat recovery system. The generator is driven by the internal combustion engine. The pumping unit is powered by the generator. The heat recovery system thermally couples the internal combustion engine with the pumping unit.

Abstract: A vertical mixing chamber with a forwardly projecting dock having a receiver in its top wall for receiving the spout of a pre-pressurized cartridge mounted from the container by a holder providing for reciprocation to engage a spout with the receiver and open a valve in the cartridge.

Abstract: A device for dispensing a mixture of at least two fluids is disclosed. The device has a plurality of cartridges that each contain a fluid. A flow channel communicates with each cartridge. A valve adjusts a mass flow rate of the fluid drawn from the corresponding cartridge. A manifold has a mixing chamber and a plurality of inlets that each communicate with one of the flow channels. The manifold has a spring and a seal that covers the inlets. A piston is between the seal and the spring. The spring is moveable between an extended position that positions the seal to substantially and simultaneously close the inlets from the flow channels and a compressed position that positions the seal to substantially and simultaneously open the inlets to the flow channels. A dispensing pump communicates with the manifold and draws fluid from each of the cartridges. A nozzle dispenses the mixture.

Abstract: A hand cleaner dispenser to dispense ozone containing fluid onto a user's hand including an ozone generator generating ozone from atmospheric air by conversion of oxygen in the air in the ozone generator into ozone to form ozonated air and a pump mechanism to draw air into the ozone generator and discharge the ozonated air from the ozone generator to a mixing chamber simultaneously with the pump mechanism drawing fluid from a reservoir and discharging fluid into the mixing chamber.

Abstract: A dispensing cap is disclosed for mixing a primary flowable substance, such as a soap, lotion, or the like, with a small dose of a secondary flowable substance, such as a fragrance. The dispensing cap includes a plurality of reservoirs containing a plurality of secondary flowable substances. Each of the reservoirs is associated with a secondary piston that, when actuated, causes the secondary flowable substance to be expelled from the reservoir into a mixing chamber in the cap, where it is mixed with the primary flowable substance. Upon mixing the two are dispensed together from a dispensing end of the cap. A selector ring is provided to enable the user to select one of the plurality of reservoirs. The selector ring has an actuation flange that aligns with the secondary piston that is associated with the selected reservoir.

Abstract: The present invention is a two-component fluid dispensing system. In particular, the present invention relates to a two-component fluid dispensing system that uses a dual rotor pump for precision ratio metering and precision fluid flow shut off of a mixed fluid.

Abstract: Foam dispensers, refill units for foam dispensers and liquid pumps for use in foam dispensers are disclosed herein. A refill unit for refilling a foam dispenser system is also disclosed herein. The foam dispenser has an air compressor secured thereto and the air compressor is not disposed of with the refill unit. The refill unit includes a liquid pump and a container for holding a foamable liquid that is connected to the liquid pump. The liquid pump includes a pump housing and a mixing chamber having an inlet check valve and an outlet check valve. The mixing chamber has an extended position with a first volume and a contracted position with a second volume. The pump housing includes an aperture therethrough configured to receive air from an air compressor that does not form part of the refill unit. One or more one-way sealing members are located within the pump housing between the aperture and the mixing chamber for preventing liquid from passing through the aperture in the pump housing for receiving air.

Abstract: A secondary container assembly includes a skirt configured to securely and removably engage the rim of a beverage can. The secondary container includes a secondary compartment holding a secondary liquid. A primary flow channel extends through the secondary container to provide a fluid flow path from the open beverage can to an outlet of the secondary container. A plurality of mixing apertures provide fluid communication ports between the secondary compartment and the primary flow channel, allowing the secondary liquid to mix with beverage from the can in the primary flow channel. A vent tube prevents a vacuum from forming that would otherwise impede flow of the secondary liquid into the primary flow channel. A removable seal covers the outlet and mixing ports. A threaded lid holds the seal in place.

Abstract: Herein is reported a feed mixing device for adding feed solutions with a non-physiologically pH value to a cell cultivation vessel comprising a chamber for mixing the feed solutions prior to their addition to the cell cultivation vessel as well as its use. With the feed mixing device as reported herein feed components can be provided in solution at a pH value at which they have good solubility and/or good stability whereby the pH value can be clearly different from the pH value of the cultivation medium, i.e. different from the physiological pH value. This allows performing the cultivation with more flexibility compared to a cultivation in which the pH value of the feed solution is limited to a small range around the pH value of the cultivation.

Abstract: The present invention is directed a beverage dispensing machine and beverage dispenser that may be used for mixing and dispensing liquids. The beverage dispenser has a mounting bracket with a carrier that is removably connected to the mounting bracket and a mixing bowl that is removably connected to the carrier. The beverage container also has a first set of fittings extending from the mounting bracket for receiving a first set of liquids and dispensing the first set of liquids into the mixing bowl. The beverage container also has a second set of fittings also extending from the mounting bracket for receiving a second set of liquids and dispensing the second set of liquids into the mixing bowl.

Abstract: Mixing nozzle fitments and beverage devices containing the mixing nozzle fitments are provided. In an embodiment, the mixing nozzle fitment includes a first shaft defining an inlet passage, a second shaft defining a curved outlet passage and attached to the first shaft, and a coupling member attached to the second shaft. The coupling member defines a passage that leads into the curved outlet passage of the second shaft. The mixing nozzle fitment can be used in any suitable beverage dispensing device.

Abstract: An on-demand hot water dispenser (10, 90) with a source of hotter water (30) at a preselected relatively elevated temperature (36, 40, 42) and a source of cooler water at a relatively non-elevated temperature compared to the hotter water (17, 52) has an outlet dispense valve (18, 92) connected with both the hotter water source and the cooler water source through a common mixing chamber (74) to selectively vary the temperature of the mixed water being dispensed. The cooler water source (17, 52) is connected to the outlet dispense valve (18, 92) through an electrically controlled proportional valve (72) with a variable flow rate that is controlled during dispensing and mixing in accordance with a comparison between a selected one of a plurality preselected temperatures stored in a controller (34) and a sensed temperature (60, 62) of the mixed water in the mixing chamber (74) to maintain the mixed temperature of the water being dispensed at a preselected temperature on a real-time basis.

Abstract: A personal hydration system includes a control valve assembly including a valve body provided with a first inlet port fed by a liquid, a second inlet port, and an outlet port for dispensing at least fluid from the first inlet port. The control valve assembly further includes either a flexible and resilient or a non-collapsible reservoir which holds an additive and is mounted to the second inlet port. The first inlet port can be provided with a valve for preventing backflow of the additive from the reservoir, and the reservoir can be provided with a screen for disrupting coagulation of certain additives when mixed with liquid. A valve core is rotatably mounted in the valve body to establish various flow conditions.

Abstract: Cartridge systems for application of a material have at least one cartridge having cartridge walls, a cartridge head having at least one opening in the cartridge head, and a bracket arranged on the cartridge head. A valve is mounted in rotatable manner in the bracket and has at least one passage through the valve that is connected to an outlet opening of the valve. In a closed position, the valve closes the at least one opening of at least one cartridge in a sealed manner. The at least one passage of the valve is connected to the at least one opening when the valve is located in an open position such that the cartridge content is squeezable out of the at least one cartridge through the outlet opening, and further wherein the valve is configured to be transitioned from a closed position to an open position through a rotation of the valve about an axis of symmetry of the valve.

Abstract: An improved coupling is disclosed for connecting a pump to a container. A first embodiment of the improved coupling incorporates a slidable coupling sleeve for piercing a frangible seal for providing liquid communication from the container to the pump. A first embodiment of the improved coupling incorporates coupling for providing liquid communication from the container to the pump. The invention is suitable for use with an aseptic container, a refrigerated container or a non-refrigerated container with or without preservatives.

Abstract: A foam production pump includes a button (110) having an outlet port (112), a housing (120), a closure (130) for mounting the housing to a container, a stem (170) performing an up-and-down motion, a shaft (150) mounted in the lower part of the button, a foam net (158) for producing foam, a housing cap (140) for isolating an air space and a solution space of the housing from each other, an air piston (126), a solution piston (180) mounted at the outside of the stem, an air valve (128) for opening and closing a piston air hole, a first compression spring (160) disposed between the shaft and the solution piston, a second compression spring (165) disposed between the shaft and a support groove of the housing cap, and an opening and closing member (200) for opening and closing a lower end inlet port of the housing when pumping.

Abstract: A beverage dispensing system includes a nozzle body with a plurality of ingredient inlets and a water inlet disposed in the nozzle body. A diffuser is connected to the nozzle body and has floor with a plurality of holes therethrough. A nozzle cap is connected to the diffuser and has an outlet. A first mixing chamber is formed between the ingredient inlets and the diffuser floor, and a second mixing chamber is formed between the diffuser and the outlet, with the second mixing chamber being configured to receive fluid from the first mixing chamber via the holes in the diffuser floor. A first water flow path is situated between the water inlet and the first mixing chamber, and a second water flow path is situated between the water inlet and the second mixing chamber, wherein the second water flow path bypasses the first mixing chamber.

Abstract: A device for dispensing a mixture of at least two fluids is disclosed. The device has a plurality of cartridges that each contain a fluid. A flow channel communicates with each cartridge. A valve adjusts a mass flow rate of the fluid drawn from the corresponding cartridge. A manifold has a mixing chamber and a plurality of inlets that each communicate with one of the flow channels. The manifold has a spring and a seal that covers the inlets. A piston is between the seal and the spring. The spring is moveable between an extended position that positions the seal to substantially and simultaneously close the inlets from the flow channels and a compressed position that positions the seal to substantially and simultaneously open the inlets to the flow channels. A dispensing pump communicates with the manifold and draws fluid from each of the cartridges. A nozzle dispenses the mixture.

Abstract: A composition for use in occluding a body duct, such as female sterilization or blocking the urethra, in a living creature with a plug prepared in situ from a composition of an addition curable polysiloxane system.

Abstract: A beverage dispenser for providing mixed beverages. The beverage dispenser has a housing containing a plurality of first liquids, a plurality of second liquids, and a water supply, wherein the first liquids comprise liquors, and wherein the second liquids comprise mixer syrup. The beverage dispenser also has an interface, a dispensing spout and a server. The interface is provided on the housing to input variable data and receive variable instructions. The server electrically operates valves to control the flow of first liquids, second liquids and water to the beverage dispenser spout based on instructions entered at the interface and a pouring schema stored in memory.

Abstract: An enclosure for use with a gravity fed fluid dispensing system includes a housing with a base member and a cover member that is movably connected with the base member. The base member and cover member define an interior chamber for receiving a bottle. An actuator is movably connected with the housing and arranged to rotate the bottle within the housing.

Abstract: The invention concerns a dosing device for dosing a metered amount of a powdered product comprising: —a fixed body (2) made of at least a disc presenting a single pierced aperture (5), —a rotary top disk (1) disposed on the top of the fixed body (2) and presenting a taking out pierced aperture (4), —a rotary bottom disk (3) disposed on the bottom of the fixed body and presenting a discharging pierced aperture (6), —a rotary shaft (7) connecting the bottom disk (1) and the top disk (3), wherein in the stand-by position of the device the metered pierced aperture (5) is empty and closed to the atmosphere. The invention also concerns a beverage preparation apparatus implementing such a dosing device.

Abstract: A fountain beverage dispenser for constituting a beverage by mixture of a beverage syrup and a diluent for the syrup is characterized by use of a highly concentrated beverage syrup supply and at least one diluent and syrup blending station for diluting the highly concentrated syrup with diluent before the diluted syrup is mixed with diluent in the final mixture of syrup and diluent delivered to a dispensing nozzle.

Abstract: The disclosure relates to a metering and mixing device for multi-component substances, such as multi-component adhesives, which includes at least two associated cartridge accommodating deices for accommodating replaceable cartridges having individual substance components, a discharging device for disclosing (e.g., simultaneously discharging) the substance components from the cartridges through component outlets by discharging pistons that plunge into the cartridge accommodating device or cartridges, and a mixing device, which is connected to the component outlets, mixes the discharged substance components, and outputs the substance components in the mixed state. At least one discharging piston can have a thread such that the discharging piston can be driven forward by the thread when the discharging piston is rotated relative to the cartridge accommodating device.

Abstract: A dispensing assembly for dispensing a mixture of fluids is provided. In some embodiments, the dispensing assembly includes a first valve for selectively permitting fluid flow to a mixing chamber in which a second fluid is introduced, wherein the valve is actuated between open and closed positions responsive to fluid pressure downstream of the mixing chamber. In such embodiments, the fluid pressure downstream of the mixing chamber can change based upon whether fluid is dispensed from a spray gun, wand, nozzle, or other dispensing head of the dispensing assembly.

Abstract: A foam spray head assembly includes a head, a first piston unit, a valve unit, a link, a second piston unit, a cylinder, a resilient member and a resilient valve. The valve unit is directly connected to the head to allow the valve unit to receive the pressing force of the head to quickly respond in the form of reciprocating motion. The parts made of metal such as the spring is isolated from the liquid to ensure that the liquid is not affected by the metal.

Abstract: Capsule (10) for two or more components of a material which are to be mixed together, comprising a cartridge (11) comprising an outlet (12), a first component chamber (13) for containing a first component, and a second component chamber (14) for containing a second component, the two chambers (13, 14) opening into the outlet (12); and a piston (15) which at least with its front end sits in the cartridge (11), lies with its rear end outside the component chambers (13, 14) and, when it is pushed forwards, presses the two components out of their component chambers (13, 14).