Abstract: A material dispensing device includes: a target nozzle for dispensing a target material to a target container; a pump arranged to operably extract the target material from the material container and to operably push the target material to flow toward the target nozzle; a material drainage port; a flow direction switch device, coupled with the target nozzle and the material drainage port, and arranged to operably receive the target material; and a control circuit. When the material dispensing device needs to output the target material to the target container, if the control circuit determines that a temperature of the target material inside the material dispensing device reaches a predetermined temperature, the control circuit controls the flow direction switch device to guide the target material to flow toward the target nozzle, so as to dispense the target material into the target container through the target nozzle.

Abstract: An insulated container having an internal chamber, a second container received within the internal chamber, a spigot assembly extending through a passageway through a wall of the insulated container and removably coupled to the second container, the spigot assembly being in fluid communication with the second container for dispensing liquid out of the insulated container.

Abstract: Methods for growing single crystal silicon ingots that involve silicon feed tube inert gas control are disclosed. Ingot puller apparatus that include a flange that extends radially from a silicon funnel or from a silicon feed tube to reduce backflow of gases from the silicon feed tube into the growth chamber are also disclosed.

Abstract: A system for providing a pre-mixed beverage from a distribution device includes a first container including a first consumable material and a second container including a second consumable material. A mixing block is arranged in fluid communication with the first container, the second container, and the distribution device such that a mixture of the first consumable material and the second consumable material is formed within the mixing block. At least one pump is operably coupled to first container, the second container, and the distribution device.

Abstract: An insulated container having an internal chamber, a second container received within the internal chamber, a spigot assembly extending through a passageway through a wall of the insulated container and removably coupled to the second container, the spigot assembly being in fluid communication with the second container for dispensing liquid out of the insulated container.

Abstract: A self-cleaning plunger includes an elongate cylindrical handle; a fluid reservoir clamped to the handle; a pump housed within the handle; and a resilient plunger cup coupled to a fluid dispersing sprayer assembly. A grip is formed around one end of the handle and the fluid dispersing assembly is coupled to the other. The fluid reservoir communicates fluid to the pump which communicates fluid to the dispersing assembly. The cup has a central aperture and the sprayer assembly is coupled to the handle. The sprayer assembly has an upper component with spray nozzles to direct spray toward a convex surface of the cup and a lower component extending through the central aperture to direct spray toward a concave surface of the cup. A method of cleaning a plunger with the self-cleaning plunger includes putting cleaning fluid in the fluid reservoir and actuating the pump.

Abstract: A paint container for use with a reusable dispensing apparatus, and the reusable dispensing apparatus are provided to dispense paint under pressure. The paint container includes a housing defining an interior space that is devoid of an internal valve, and a combination comprising a propellant combined with paint within the interior space. A container cap is installed on the housing to enclose the propellant combined with the paint within the interior space at an elevated pressure, and defines a channel that cooperates with a portion of the housing. A compressible gasket is disposed within the channel and compressed between the container cap and the portion of the housing to form a seal that interferes with an escape of the propellant combined with the paint between the container cap and the housing. A releasable fastener engages releasably couples the reusable dispensing apparatus to the container cap.

Abstract: A toner container includes a toner accommodating body, a nozzle in fluid communication with the toner accommodating body, and a shutter configured to open and close the opening of the nozzle. A projection is positioned at an end portion of the toner container in a direction of the rotational axis, the projection having an inner peripheral surface facing towards the rotational axis.

Abstract: A toner container includes a toner accommodating body, a nozzle in fluid communication with the toner accommodating body, and a shutter configured to open and close the opening of the nozzle. A projection is positioned at an end portion of the toner container in a direction of the rotational axis, the projection having an inner peripheral surface facing towards the rotational axis.

Abstract: A drop seeder apparatus includes a frame and a bottom plate having a plurality of through holes. A top plate has a plurality of through holes. The top plate is secured in the frame and positioned in a sliding relationship with respect to the bottom plate. A system of legs is configured to adjust a length thereof to accommodate seed trays of varying heights. A slide actuation system is configured to allow a user to slide the top plate across the bottom plate and cause the top plate to automatically return to a default trap position.

Abstract: Disclosed is a gas discharge apparatus for liquefied hydrogen storage tanks, the gas discharge apparatus including a receptacle mounted to a liquefied hydrogen storage tank, the receptacle having a stationary valve configured to be opened by external force mounted therein, a multistage opening and closing device coupled to the receptacle such that the position of the multistage opening and closing device is adjustable, the multistage opening and closing device being configured to be opened by reaction force transmitted from the receptacle when moved relative to the receptacle, the multistage opening and closing device having a sliding valve configured to push open the stationary valve in the state in which the multistage opening and closing device is open, and a manipulation unit configured to move the multistage opening and closing device relative to the receptacle such that the sliding valve and the stationary valve are sequentially opened.

Abstract: A safe, economical, lightweight, ergonomic, and easy to use improved hand valve capable of handling high pressures with either air or liquid media for use in industrial environments. The industrial high pressure hand valve is of the type similar to a floating ball check valve, but with a unique way of achieving the sealing engagement that provides a completely positive shutoff so that absolutely no leakage of the air or liquid media occurs whether operated at high or low pressures. The industrial high pressure hand valve is comprised of a valve body, an ergonomic handle grip, a live swivel, a hose barb, and a nozzle for either air or liquid media. The industrial high pressure hand valve is designed in such a way that other accessory components, such as extended nozzles, can be threadably connected thereto. A handle connected to the valve body controls the flow of the media and when released provides an automatic and completely positive shutoff.

Abstract: A dispensing system for jetting a material onto a substrate is disclosed. The dispensing system includes a plate defining a first surface, a second surface opposite the first surface in a first direction, and at least one slot that extends through the plate from the first surface to the second surface, and an actuator assembly that contains a piezoelectric element and is operatively coupled to the needle. The dispensing system also includes at least one fastener that extends through the actuator assembly and the at least one slot, where the at least one fastener is configured to selectively engage the plate such that 1) in a disengaged configuration, the at least one fastener is movable within the slot and the actuator assembly is movable relative to the plate, and 2) in an engaged configuration, the at least one fastener is not movable within the slot and the actuator assembly is not movable relative to the plate such that a stroke length of the needle is adjusted.

Abstract: A drink container and plug lid for use therewith. The lid has an upper member and a lower member with a ring seal positioned therebetween and radially outwardly stretchable from an initial diameter to a larger sealing diameter in response to an actuator moving the upper and lower members together to place the ring seal in fluid-tight sealing engagement with the container body. Moving the upper and lower members apart allows the radially outward stretched ring seal to move from the sealing diameter to the initial diameter whereat it is out of fluid-tight sealing engagement with the container body.

Abstract: A lid for a beverage container comprising a lower lid having a perimeter skirt adapted to secure the lower lid to an opening of the beverage container, a lip portion radially inward from the skirt and extending upward from the skirt and defining an inside surface, an annular portion radially inward from the lip portion and defining a plurality of openings through which liquid from the container may flow; an upper planar lid resting on the lower lid by gravity and having a perimeter edge that is sized to closely conform with the inside surface, the upper lid covering the annular portion as it rests on the lower lid, and a stop mechanism cooperating with the lower lid and the upper lid to limit the range of motion of the upper lid with respect to the lower lid, wherein the stop mechanism enables the upper lid to move away for a distance from the lower lid in response to pressure exerted upon the upper lid by liquid flowing out of the container through the openings as the container is tilted, and wherein the sto

Abstract: A dispensing tap for liquids includes a body connected to the neck of a container, a dispensing head with an outlet or mouth, and a throat connecting the body to the dispensing head. A shut off valve is configured for sealing engagement with the mouth of the dispensing head, and a piston is axially guided within the dispensing head. The piston includes a peripheral seal slidably engaged with an interior surface of the dispensing head, and a valve stem coupled to the shut off valve. The piston is selectively actuable between a normally closed position an open position. A spring is captured between the piston and the dispensing head normally biasing the piston and shut off valve to the closed position. A vent is in communication with an interior of the body and the vent is opened and closed with movement of the piston and shut off valve.

Abstract: A handwashing valve structure includes a mounting structure, a dispensing structure, and a control structure. The mounting structure is configured to attach to a liquid vessel. The dispensing structure is configured to dispense a liquid from the liquid vessel and is movable between a closed position and an open position. The control structure is configured to move the dispensing structure between the closed position and the open position. The control structure is configured to be moved by pressure from a portion of a user's body to move the dispensing structure from the closed position to the open position. The dispensing structure is configured to automatically move from the open position to the closed position in the absence of any pressure from the portion of the user's body onto the control structure.

Abstract: A container for liquids equipped with delivering plug comprises: a main body placed at the delivery end of the container, a lower closing piston inside the main body, from the side oriented towards inside the container, and an upper cover with collapsible membrane/push-button placed inside the main body, from the side oriented towards outside the container; the upper cover with collapsible membrane/push-button fastened to the main body comprises a central push-button equipped with internal weakening points, to allow deforming the central push-button passing from a closing position to a stable using/opening position.

Abstract: In order to provide a shut-off valve including a valve housing, a valve seat which is held on the valve housing, and a valve element (40) which is movable in the valve housing relative to the valve seat and is movable by means of an adjusting unit, wherein the shut-off valve, as a result of its construction, has the smallest possible flow resistance in the open position of the valve element, it is proposed that the valve element should have a valve disc (74) which is provided, on its side facing the valve seat, with a sealing element (90) that abuts against the valve disc.

Abstract: A valve assembly is configured to be coupled to a fluid container. The valve assembly includes a housing defining a fluid path extending between an inlet and an outlet, and a plunger sub-assembly secured within the fluid path. The plunger sub-assembly includes a retainer secured to the housing within the fluid path, a plunger, and a linear coil spring having a first end secured to the retainer and a second end secured to the plunger. The linear coil spring biases the plunger into the outlet in a closed position. The plunger sealingly closes the outlet in the closed position.

Abstract: A dispensing nozzle including a nozzle body defining a fluid path therein and configured such that fluid is flowable through the fluid path in a downstream direction. The nozzle includes an inlet valve in the fluid path and a vent valve in the fluid path positioned downstream of the inlet valve. The nozzle further includes a slide component positioned between the vent valve and the inlet valve, and an actuator that is manually movable between a first position and a second position. The actuator is operatively coupled to the slide component and configured such that operation of the actuator from the first position to the second position directly or indirectly causes the inlet valve to open and directly or indirectly causes the vent valve to close.

Abstract: Drink containers include a liquid container and a cap assembly removably coupled to the liquid container. Cap assemblies include a body that defines a drink outlet for dispensing drink liquid, and an operational assembly that is operatively coupled to the body and that has at least an open configuration permitting drink liquid to be dispensed and a closed configuration restricting drink liquid from being dispensed. In some embodiments, the operational assembly also has a cleaning configuration in which portions of the operational assembly are spaced away from the body of the cap assembly for cleaning. In some embodiments, the operational assembly is positioned predominantly on the exterior of the body of the cap assembly.

Abstract: A device for cleaning an evaporator of a condenser with condensation water. The device includes a condensation water pan that collects condensation water condensed from process air by the evaporator, and a collection container above the evaporator that receives the condensation water from the condensation water pan and that dispenses the condensation water with a gush onto the evaporator from a rinsing chamber of the collection container with a sudden opening of a closure part through a downpipe.

Abstract: A finger trigger spray cap actuator and a separable overcap for a mounting cup on an aerosol container. The actuator comprises a spray cap actuator having a base, a collar, a finger trigger support, a finger trigger hingedly connected to the trigger support by a living hinge, and a finger grip depending from the finger trigger. The spray cap actuator has an operable position in which a central passage, formed through the base, engages with an integral down tube depending from the finger trigger, and a non-operable position in which the finger trigger is pivoted away from the lower base. The overcap has an interior space and an overcap support wall defines a receiving compartment for engaging with the spray cap actuator. When the spray cap actuator is folded into the operable position, the actuator can be inserted into the receiving compartment of the overcap and releasably retained therein.

Abstract: A tap for a flexible package having a dosing dispenser. The tap can be coupled to a spout of a flexible bag (such as the type that is provided for bag in box packaging). The tap permits the application of metered doses from the flexible bag. As the flexible bag is emptied, the flexible bag collapses, as the dosing dispenser generally prohibits the passage of air back into the flexible bag when the flowable material is emptied therefrom.

Abstract: Applicants' invention may retrofit or may be provided initially with a dispensing valve and comprises a second handle, interacting with a valve and/or a valve first handle for dispensing a beverage from the valve. Applicants' invention comprises a valve body typically having at least a pair of handles, one typically upstanding and one downwardly depending both which separately may be moved to actuate the dispensing mechanism within the valve to dispense a beverage therefrom.

Abstract: An apparatus comprises a reservoir (2) for containing a food product, an appendage (10) which protrudes from the reservoir (2) and defines a chamber (11) communicating with the reservoir (2), an outlet hole (22) for the food product, the appendage (10) being delimited by a lower surface (12) in which the outlet hole (22) is obtained.

Abstract: A mixing module that includes a mixing chamber formed of a cold flow material and placed within a housing which includes a compression device for compressing the cold flow material through which extends a reciprocating rod, preferably in the form of a valve rod relative to one or more chemical ports formed in the mixing chamber to mix or deliver chemicals within a mixing reception recess. The mixing chamber features a locking arrangement between the cold flow material mixing chamber and the housing which acts to prevent movement of the mixing chamber within the housing due to a sticking of the reciprocating rod to the mixing chamber which otherwise produces a position change in the mixing chamber as the compression device is temporarily compressed until the rod be comes unstuck and releases.

Abstract: The present disclosure provides apparatuses for filtering hot adhesives. In certain embodiments, the present disclosure provides a filter plate that is used in conjunction with a heater and a valve assembly. In other embodiments, the present disclosure provides a filter screen that is located in a recess of the valve assembly housing, in addition to or in lieu of the use of a separate filter plate. Both embodiments utilize one or more ribs, which aid the flow of adhesive, facilitate the transfer of heat from the heater to the valve assembly, and optionally, physically support the filter screen.

Abstract: A dispenser for applying small amounts of liquid to a substrate. The dispenser includes a dispenser body, an actuator in the dispenser body, and a dispensing element including a dispensing element body removably coupled to the dispenser body. A valve stem is mounted for reciprocating movement within the dispensing element body. Additional aspects include a deformable valve seat, a deformable and resilient valve stem tip and a method of applying liquid in discrete amounts to a substrate.

Abstract: Filling device (1, 101) including a reservoir (3, 103) intended to contain liquid, a valve (4, 104) connected to the reservoir and a spout (20, 120), in which the valve has a shutter (10, 110) and a shutter seat (11), a flow circuit having a liquid inlet adjacent to the shutter seat and a liquid outlet adjacent to the spout, the liquid outlet being located lower than the liquid inlet, and an air intake circuit separate from the flow circuit, in which a pushrod (22, 122) has an upper end adjacent to the shutter. The pushrod includes a first duct (27) and a second duct (28), the air inlet circuit including the first duct, the flow circuit including the second duct.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for dispensing toners. In one aspect, a cap and valve assembly is provided including a movable valve assembly, the movable valve assembly having a first position and a second position; a toner path, which when open is configured to allow toner to flow from a toner container to an output aperture; and an air inlet path, which when open is configured to couple an air source to the toner container; where in a first valve assembly position the toner path and the air inlet path are closed, and in a second valve assembly position the toner path aid the air inlet path are open.

Abstract: A tap for liquids dispenses liquids including wines from plastic bags or bladders packaged in cardboard boxes, and has three modes of operation. Liquids may be dispensed from the box on a shelf by manually turning a rotatable cap to open a valve for liquid to flow by gravity; an adapter attached to the tap automates the process and dispenses liquids through a pump; and the tap may be used to fill bags or bladders from an automated filling machine. In a first embodiment, the rotatable cap must be manually opened for both manual and automated operation. In a second embodiment, the rotatable cap may remain closed and the adapter can still dispense liquids through the tap using a pump.

Abstract: A system and method for dispensing a predetermined portion of a beverage or drink additive using a cost effective portion control valve that replaces electrical components with mechanical components. The present invention dispenses a controlled portion of a beverage when a lever is activated. A magnetically coupled linkage system can control the exact amount of fluid dispensed. A valve block contains a beverage input, a beverage outlet, and a valve seal. A lever arm is connected to the valve seal and connected to a magnetic housing containing a valve magnet. A yoke pivots about the valve block where the yoke contains a yoke magnet aligned to interface with the valve magnet. A lever arm return spring is connected to the lever arm and the valve block to bias the lever arm return spring to a resting position. As the yoke pivots beyond a predetermined distance, the yoke magnet separates from the valve magnet allowing the lever arm to return to the resting position closing the valve.

Abstract: A dispensing device (10) for dispensing compressed fluid from a can (100) through a valve stem (110) of the can, the dispensing device containing a hollow tube (20) defining a channel (22) there-through, a connector (40) defining a conduit (46) there-through that is in fluid communication with the channel of the hollow tube, a plug (30) located in the channel of the hollow tube that is able to move in the channel of the hollow tube and seal the hollow tube from fluid flow when pressed towards the dispensing end (24) of the hollow tube (22), a sealed port between the inside and outside of the dispensing device and a flexible and inelastic extension piece (50) attached to the plug and extending through the channel of the hollow tube and, optionally, the conduit of the connector then out from the dispensing device through the sealed port and capable of attaching to a can (100) to which the dispensing device (100) is connected.

Abstract: A dispensing tap for beverages that comprises an actuator and a valve housing. A conical spring washer is joined and/or sealed to an actuator base to form the actuator. The actuator is then inserted into the valve housing to form the dispensing tap for attachment to a container containing a liquid. In use, a force is exerted on the conical spring washer to actuate the actuator base within the valve housing and thereby create an opening and/or passageway in the dispensing tap. Once opened and as the force is maintained, the liquid in the container can flow through the opening or passageway for dispensing the liquid out the dispensing tap. Upon releasing the force, the conical spring washer returns back to its original position. This movement of the conical spring washer causes the actuator base to move in the reverse direction within the valve housing thereby closing the opening and/or eliminating the passageway in the dispensing tap.

Abstract: A finger trigger spray cap actuator for use in conjunction with a mounting cup on an aerosol container including a base having an integral collar, a finger trigger support; a finger trigger hingedly connected to the trigger support, and a finger grip depending from the finger trigger and extending radially beyond the outer circumference of the collar. The present invention also relates to a method of manufacturing the finger trigger spray cap assembly including integrally molding a base portion and finger trigger portion as a single unit about a living hinge.

Abstract: The present disclosure relate to the field of depositing an underfill material between a microelectronic die and a substrate for flip-chip packages with an underfill material dispenser. In at least one embodiment, an underfill material dispenser may include a heater having a plurality of conduits. Other embodiments of the present disclosure may further include multiple dispense needle configurations, angled dispense nozzle exit conduits, conical nozzle exit conduits, and satellite traps.

Abstract: An apparatus for dispensing an adhesive generally comprises a dispensing module, a liquid supply component, and an actuating assembly. The actuating assembly includes a housing proximate the dispensing module and a three-way solenoid valve operatively coupled to the housing. A piston positioned within a piston chamber of the housing is configured to reciprocate along a piston axis when operated by pressurized air controlled by the solenoid valve. The piston is operatively coupled to a valve element within the dispensing module by a pivot arm.

Abstract: A rod activated water valve includes a valve base that mates with a standard water faucet. One end of the valve base attaches to a cylindrical valve housing which has an inward protruding lip, at least two key holes at a bottom end and an outer groove. A rod activated valve mechanism is housed within the cylindrical valve housing. A cylindrical outer sleeve is rotatably held onto the cylindrical valve housing by a C-shaped spring member and substantially covers the cylindrical valve housing thereby preventing removal of the cylindrical outer sleeve from the cylindrical valve housing and allowing free rotation of the cylindrical outer sleeve with respect to the cylindrical valve housing. A tool is required to be inserted into the key holes for installation and removal of the rod activated water valve with tamper-resistant security feature to/from a faucet.

Abstract: A tap for use in association with bag in box containers comprising a body, a plug member, an upper seal assembly and a lower seal assembly. The body includes a tap nozzle in the form of an elongated tube having an inner surface and an outer surface, a handle opening at a first end and a dispensing opening at the second end. A nozzle opening extends into the elongated tube between the first and second ends and is placeable in fluid communication with a bag of a bag in box container. The plug member is structurally configured to fit and slidably move within the elongated tube of the body such that the outer surface of the plug member faces the inner surface of the elongated tube. In the open orientation, the nozzle opening is in fluid communication with the dispensing opening. In the closed orientation, the nozzle opening is precluded from fluid communication with the dispensing opening.

Abstract: A tongue and groove arrangement guides an outer cap in an axial direction with respect to an inner cap. When a cap is fixed to a mouth of a container body, the outer cap is located in a direction of separating from the inner cap in the axial direction, and an inner face of a top wall of the outer cap is separated from a valve to urge the valve in a direction of projecting from a discharge hole of an inside plug, causing the discharge hole to close. When the cap is detached and removed from the mouth, the outer cap is moved in a direction of approaching the inner cap in the axial direction, and the inner face abuts the valve urged in a direction of separating from the discharge hole while resisting against an urging member, causing the discharge hole to open.

Abstract: A dispenser includes a dispenser body which defines a flow passage, a valve assembly, and an actuator. The valve assembly is disposed in the flow passage and includes a first valve member and a second valve member. An actuator is coupled to the valve assembly. When the actuator is manipulated through a first range of motion, only the first of the two valve members is displaced, and when the actuator is manipulated through a second range of motion, both the first and second valve members are displaced in unison.

Abstract: A soap dispenser has a base and a cover attached to the base by two sets of hinges. A container of soap is housed between the cover and the base and is attached to a liquid or foam dispensing pump. The pump is housed within a mounting device which surrounds the pump and has several diameters and at least one shoulder. In at least one embodiment, the mounting device has a flexible arm that biases the cover to a non-actuated position. The portion of the mounting device farthest from the pump's dispensing orifice and located closest to the soap container is flat in at least one embodiment on two opposite surfaces, which assists in orienting the pump correctly. As the portion is not circular, it must be oriented correctly. In at least one embodiment, as the cover is depressed, the pump actuates to dispense foam or soap.

Abstract: A beverage dispenser has a container for beverage fluid that has a flat bottom that is above a space large enough to place a glass or cup. The container has a sidewall and a top edge of an open container that has a removable lid. A pair of actuator guards are on either side of a space near but below the top edge of the container where an actuator is located that projects through a notch in the top edge, plunging downwardly inside the inner wall of the container sidewall and jutting straight out to form a fork. This fork selectively holds a plunger that has a long shaft and plug that fits into a hole in the bottom wall of the container. This hole and plug form a valve. The valve can be opened when the actuator is depressed between the actuator guards towards the container's sidewall, which pivots the fork upwardly which in turn lifts the plunger and plug to open the valve for dispensation.

Abstract: A container lid with a latch handle is taught that incorporates a drinking lip, having a flared brim, configured to interface with a liquid container. A lip sealing ring is disposed on the drinking lip creating a watertight fit between the lip and the container. A lid body, having lid male threads, is configured to interface with container lid female threads, and the lid body includes a bottom cover which forms a dead air space for insulation purposes within the lid. The lid body incorporates a vertical arched handle with a snap-in hinged spring loaded latch for quick release attachment of the container lid and container securely to an object. A lid sealing ring is disposed on the lid body forming a watertight fit between the lid body and the container drinking lip.

Abstract: Embodiments relate to a device and method for dispensing pressurized fluid from a container wherein the internal pressure of the container is not exposed to an external or ambient atmosphere.

Abstract: The invention concerns a valve (1) for measuring a liquid or powdery product, comprising a fixed conduit (5) for supplying the product; a closure (13) mounted at a lower end (11) of the conduit (5); and a coaxial sleeve (15), mounted outside the conduit (5), having a lower end (19) shaped into a valve seat, said sleeve (15) being mobile in translation relative to the conduit (5) between a so-called closed position wherein the valve seat (19) co-operates tightly with the closure (13), and a so-called open position wherein the valve seat (19) is spaced apart from the closure (13) to allow the product to flow.

Abstract: A fountain-style carbonated soft drink dispenser includes a housing adapted to attach to a beverage container, an actuator for selectively opening a fluid conduit, and one or more long tubes that vary a pressure drop across the dispensing assembly and convey fluid. The resistance through the tube(s) is decreased as the pressure within the container decreases so as to maintain a substantially constant flow rate throughout dispensing.

Abstract: An improved concentrated/extract cartridge is provided for dispensing a liquid in an accurate and repeatable manner. The cartridge includes an electromagnetically actuated piston connected to a value. The piston includes an exterior ring supported by a hollow interior web that is configured to permit a flow of fluid into the dispensing tube when the value body is in contact with the value seat. A membrane is located below the web and is in sealing contact with the internal ring when the piston is activated. This allows a precise and repeatable amount of the liquid to be dispensed with each stroke. Dispensers for dispensing the liquid from the cartridge for a number of applications are also provided. The dispensers each include an actuating coil into which the dispensing tube is inserted. A controller is connected to the coil for controlling the actuation of the piston/value assembly for dispensing the fluid in the cartridge as required for the particular application.