Abstract: A pump container includes: a container in which a liquid is contained; a shoulder member configured as a cylindrical member, the upper and lower portions of which are open, the shoulder member having a lower outer peripheral portion formed to have an inner diameter larger than that of an upper inner peripheral portion; a valve housing comprising a cylinder portion, a hose being inserted/connected into/to the lower portion of the cylinder portion, the upper portion of the cylinder portion being open, the valve housing comprising an outer-periphery cylinder portion configured on the outer peripheral edge of the cylinder portion in a flared shape, the upper portion of the outer-periphery cylinder portion being open, the valve housing comprising an upper-end insertion portion bent outwards, and the valve housing comprising a seating portion bent outwards from the upper end of the upper-end insertion portion and a discharge cap.

Abstract: A treatment system configured to treat a disease using a first therapeutic fluid, the treatment system including a base housing, a first reservoir configured to store a first therapeutic fluid disposed within the base housing, a first plunger disposed within the first reservoir, a first rotatable shaft member configured to rotate within the base housing, and a first flexible member having a first end coupled to the first plunger and a second end coupled to the first rotatable shaft member, wherein the first rotatable shaft member is configured to shorten a length of the first flexible member to deliver the first therapeutic fluid from the first reservoir.

Abstract: A sustained duration trigger sprayer capable of dispensing at least 3 mL of product over a time period of about 3 seconds utilizing a force-to-actuate of between about 10 pounds and about 15 pounds. The trigger sprayer includes an enlarged piston bore and piston and an elongated trigger lever creating a high output fluid displacement with a 0.5 inch displacement distance. The container bottle and/or the sprayer shroud are contoured to provide a gripping area opposing the terminal end of the trigger lever wherein the gripping distance in from the gripping area to the terminal end of the trigger lever is no greater than 3.3 inches.

Abstract: Herein is disclosed an apparatus and method for delivering a fluid to an individual in such a manner that sloshing of the fluid is substantially suppressed, even when the fluid has been only partially consumed. The apparatus includes a reservoir for containing the fluid and a valve in fluid communication with the reservoir. A biasing mechanism exerts a force upon the reservoir, causing it to contract and force fluid through the valve, when the valve is opened. The biasing mechanism and reservoir are housed within a body, according to some embodiments.

Abstract: The device for packaging and dispensing a product including a storage container (12) provided with at least one variable-volume compartment (22) containing the product, a pressurizing means (30) able to permanently pressurize the product contained in the compartment, and a dispensing head (14) having a mounting base (32) attached to the container. The dispensing head further includes a dispensing member (34) mounted inside the mounting base (32) with the ability to move in rotation, a piston (36) with the ability to move in translation inside the dispensing member (34) and able to delimit, inside the said member, opposing first and second metering chambers (60, 62), and at least first and second orifices (56, 58) formed on the dispensing member (34) and respectively able to be in direct fluidic communication with the first and second metering chambers (60, 62).

Abstract: An apparatus and method relating to a generator comprising a housing defining an interior and fluidly separating the interior from surrounding ambient air, at least one of a rotor or stator located within the housing, a cooling circuit passing through at least a portion of the housing to cool the interior and recirculating a coolant having a density greater than the ambient air, and a jet pump having a motive fluid conduit fluidly coupled to the cooling circuit, a transport fluid circuit fluidly coupled to the ambient air.

Abstract: A dispenser and applicator head (T) for associating with a dispenser unit (P), such as a pump, and defining a longitudinal axis X, and a front face (f1) and a rear face (f2) on either side of the longitudinal axis X, the dispenser and applicator head (T) comprising a dispenser member (1) and an applicator pad (4), the dispenser member (1) defining a feed path (C) for connecting the dispenser unit (2) to a dispenser orifice (O), the applicator pad (4) being mounted on the fluid dispenser member (1), adjacent to the dispenser orifice (O); the dispenser and applicator head being characterized in that the dispenser orifice (O) is arranged axially on the longitudinal axis X, above the applicator pad (4) that extends mainly over the front face (f1).

Abstract: Described are metering dispensers having a body configured to hold a flowable composition in a chamber, a drive screw coupled to the body, and a plunger threadingly coupled to the drive screw. The plunger includes at least two annular lips that form a fluid seal with the chamber as the plunger travels along the drive screw through the chamber. A base is rotationally coupled to the body with a cam that contacts at least one tab extending externally from the body so that the tab enters at least one low point on the cam by traveling over a trailing edge of the low point, and the trailing edge then prevents the tab from exiting the low point in the direction of the trailing edge.

Abstract: A hydration system is provided. The hydration system includes a container configured to receive and maintain a quantity of liquid, a pump connected to the container, a hose system comprising a plurality of hoses connected to the container and the pump and configured to receive liquid from the container, and an end piece connected to one of the plurality of hoses configured to be used by a user of the hydration system. The pump is configured to circulate liquid through the hose system and container to maintain a relatively similar liquid temperature for all liquid contained in the hose system and container.

Abstract: A dispensing head (1) for a trigger dispensing device includes a return spring (50) provided with a pair of main arms (52, 54), secondary arms (62, 64) which extend from the main arms (52, 54) and an abutment portion (70) that connects the secondary arms (62, 64). The abutment portion (70) and/or the secondary arms (62, 64) are applied to the frame (2) to create a constraint and give rise said return action.

Abstract: Described is a drive unit (1) for a drug delivery device comprising a carrier (3), a plunger (4) arranged within the carrier (3) and slidable in a direction of a longitudinal axis (A), a drive spring (5) arranged for biasing the plunger (4) in a distal direction (D) relative the carrier (3), and a drive force adaption mechanism (22) for modifying a force exerted by the drive spring (5) on the plunger (4).

Abstract: A powder is spread in two directions, that is, the advancement and retraction directions of a powder recoater. The powder recoater according to this invention includes a hopper that stores a powder, and a cylindrical powder supplier that has a side surface close to or in contact with the bottom surface of the hopper and includes a supply path for the powder. The powder recoater according to this invention further includes a pivoting unit that causes the powder supplier to pivot. In the powder recoater according to this invention, the center axis of the supply path is displaced from the center axis of the powder supplier in the radial direction of the powder supplier.

Abstract: A liquid dispensing device for allowing a user to drink liquid therefrom in a hands-free manner. The liquid dispensing device includes a container having a spring-loaded stopper therein, and further including an elongated tube having a mouthpiece thereon that extends from an end of the container. In operation, a user can fill the container with a liquid causing the spring loaded stopper to retract so that it is under tension. When the user wishes to drink the liquid, the user can bite the bite valve of the mouthpiece which enables water to be released from the container and into a tube connected to the mouthpiece. The spring pushes the stopper towards the mouthpiece and thus the liquid within the container is pushed through the tube to the mouthpiece so the user may drink therefrom.

Abstract: Disclosed is a gravity flow spool valve for dispensing small volumes of liquid. The valve comprises an elongated hollow housing and a piston adapted to move within the interior of the housing. The piston has a first and second spool, spaced from each other using a coupling rod. The piston is coupled to an activation button which moves the piston from a dispense position to an intake position. In the intake position, the second spool is moved past a series of intake holes in the housing and fluid surrounding the holes flows into the chamber defined between the interior surface of the housing, the first spool and the second spool. When in the dispense position, the chamber is in communication with a spout and a ventilation hole which allows the fluid contained within the chamber to flow out the spout. One application of the valve is dispensing perfume samples.

Abstract: A hemostasis mechanism includes a deformable seal, and a plunger guided for translation within a housing to displace a fluid to a clearance extending between the deformable seal and the housing. The displaced fluid increases fluid pressure in the clearance to deform the deformable seal into sealing contact with a medical device. An actuator for the plunger includes a linkage having arms rotatable about first and second axes, and configured such that their rotation is converted into translation of the plunger. The linkage is adjustable from a retracted configuration to an advanced, cammed-over configuration.

Abstract: A device, system and method for self-administration of a bolus dosage of a treatment fluid are disclosed. A device according to embodiments of the present invention may comprise a housing comprising an external lever operable by a user, an internal lever, for applying pressure to a compression spring, which in turn may press a piston to pressurize treatment fluid contained in an internal reservoir, in a high flow rate, through a small diameter catheter, into a patient body. A system according to some embodiment may comprise a device having an external reservoir connected to an inlet thereof, and a catheter connected to an outlet thereof. A method according to some embodiments may comprise actuating levers of the device, compressing a partially loaded compression spring contained in a spring cage, and pressurizing fluid contained in an internal reservoir of the device to be released through an outlet of the device.

Abstract: Trigger dispensers for liquids which include a dispenser head having a sliding valve dispenser element are provided. Also provided are dispenser heads suitable for use with trigger dispensers for liquids.

Abstract: The present invention relates to a press-type liquid pump. The liquid pump comprises a fixed unit fixed relative to a container and a movable unit capable of performing a reciprocating motion relative to the fixed unit, and a liquid product is pumped to the exterior of the container. The reciprocating motion is achieved by a pressing force applied by a user to the movable unit to move the movable unit relative to the fixed unit in combination with an elastic restoring means for restoring the movable unit relative to the fixed unit after the pressing force is removed. The elastic restoring means is a plastic elastic compressing means located below a toothed sleeve and installed between the fixed unit and the movable unit, which comprises at least one elastic strip generally formed in an arc shape.

Abstract: A trigger dispenser (1) for liquids comprises a suction valve (30) and a delivery valve (60), separate from the suction valve (30). The dispenser (1) has a detachable stop (100), comprising a bottom (104) positioned rearwards of the delivery valve (60) to form an end stop abutment with this during the dispensing step.

Abstract: A dispenser for dispensing a viscous fluid stored directly within the body of the dispenser, or within a cartridge inserted within the dispenser in which the viscous fluid is forced through a dispensing aperture by advancing a piston member and where the piston is advanced by turning a first thread member that locates in the female thread of a main body member and where upon completion of such turning resilient means are provided to partly reverse the direction in which the first thread member was turned and so avoid unwanted flow of fluid following completion of such turning.

Abstract: Aerosol-free spray devices are provided. According to some embodiments, a spray device includes a piston operable within a piston chamber and coupled to a vacuum plunger operable within a vacuum chamber. A charger is operable to move the piston and the vacuum plunger in a first direction to generate a vacuum in the piston chamber and the vacuum chamber, thereby drawing liquid into the piston chamber. The vacuum in the vacuum chamber acts on the piston to pressurize the liquid in the piston chamber. A spray actuator is operable to open a spray valve, thereby causing the vacuum in the vacuum chamber to force the plunger and the piston to move opposite the first direction, and forcing the liquid in the piston chamber through a spray nozzle as a liquid spray. According to other embodiments, a spring replaces the vacuum chamber and vacuum plunger.

Abstract: A dispensing pump, and more particularly, a valve impact type dispensing pump that may be used in a process of manufacturing an electronic product and may dispense an accurate amount of a liquid, such as a liquid synthetic resin, at high speed. The present invention provides a valve impact type dispensing pump that can descend a valve rod at high speed and thus can dispense a liquid with high viscosity at high speed. The valve impact type dispensing pump can dispense an accurate amount of a liquid at high speed. Also, the valve impact type dispensing pump can dispense a liquid having high viscosity at high speed due to a fast descending speed of a valve rod.

Abstract: A dispensing pump, and more particularly, a valve accelerating type dispensing pump that may be used in a process of manufacturing an electronic product and may dispense an accurate amount of a liquid, such as a liquid synthetic resin, at high speed. The present invention provides a valve accelerating type dispensing pump that can descend a valve rod at high speed and thus can dispense a liquid with high viscosity at high speed. The valve accelerating type dispensing pump can dispense an accurate amount of a liquid at high speed. Also, the valve accelerating type dispensing pump can dispense a liquid having high viscosity at high speed due to a fast descending speed of a valve rod.

Abstract: The present invention provides a discharge device (1) including a liquid chamber (13) that is communicated with a discharge port (11) and is supplied with a liquid material, a plunger (33) that is coupled to a piston (30), and that advances and retreats within the liquid chamber (13) in a state not in contact with a lateral surface of the liquid chamber (13), a resilient member (40) that applies a biasing force to the plunger (33), a main body (2) including a piston chamber (20) in which the piston (30) is disposed, solenoid valves (61, 62, 63 and 64) that supply a pressurized gas, supplied from a pressurized gas source, to the piston chamber (20), or that exhaust the pressurized gas from the piston chamber (20), and a controller (90) that controls operations of the solenoid valves (61, 62, 63 and 64), wherein the solenoid valves (61, 62, 63 and 64) are connected to the piston chamber (20) in parallel.

Abstract: A trigger dispenser device (1) comprises a container (C) provided with a dip tube, a dispenser head (20) with a primary liquid aspiration duct (8) connectable to the auxiliary liquid aspiration duct (202) of the container (C) and eccentric with respect to the container axis (X).

Abstract: A device, system and method relating to dispensing fluid from a device. The system relates generally to a hand-held fluid dispensing module, a control module coupled to the hand-held fluid dispensing module, a fluid container located in close proximity to the hand-held fluid dispensing module and the control module, and a cooling module coupled to the control module. The hand-held device being configured to control and determine the amount of fluid dispensed from the device. The method relates to using the system and dispensing fluid from the hand-held fluid dispensing module by either applying pressure to an exterior portion of the hand-held dispensing module or providing a vacuum to the hand-held fluid dispensing module.

Abstract: A liquid dispensing device is presented. The device has a main body and a dispensing head. The main body includes a pressure chamber, a pressure spring and a pressure piston, and the dispensing head includes a piston and a piston chamber, a channel in fluid communication with the pressure chamber, an inlet valve provided between said channel and said piston chamber, an outlet valve, an outlet channel, and an outlet valve lock.

Abstract: Methods and apparatus for dispensing flowable fluids, particularly those which are high viscosity by passing a stream of fluid through an elongate discharge passageway and injecting air into the fluid stream to initiate severing of the stream between an inner portion inward of the injected air and an outer portion outward of the injected air.

Abstract: A trigger dispenser device (1) envisages a secondary liquid aspiration duct (50) in communication with the dispenser duct, and a primary liquid aspiration duct (8) in communication with the container, off-axis with each other. Between these, a joining compartment (64) is provided communicating upstream with the primary liquid aspiration duct (8) and communicating downstream with the secondary liquid aspiration duct (50) to form the fluidic connection between them. In particular, the container (C) is of the type with built-in suction pipe.

Abstract: A trigger sprayer has a housing, a piston bore within the housing, and a piston reciprocally mounted within the piston bore. The housing further includes a flow passage through which liquid passes from a passage inlet to a passage outlet. An actuator is operable to reciprocate the piston within the piston bore between a vacuum stroke creating reduced pressure in the piston bore and a compression stroke creating increased pressure in the piston bore. A valve assembly within the flow passage controls the flow of liquid through the flow passage upon operation of the actuator. The valve assembly further comprises a check valve and a priming valve. The sprayer has a closure for mounting the sprayer to a container. The valve seat for the check valve is in a component formed separately from and operatively connected to the housing.

Abstract: A reservoir fluid automatic dispenser includes a reservoir delimiting a space for receiving a fluid, including a top edge delimiting an opening, and including a fluid exit. A dispensing mechanism includes a fixing end to fix with the reservoir, a pushing end to force the liquid out of the reservoir through the fluid exit, and a biasing member to automatically move the pushing end. The biasing member is restrained between the fixing end and the pushing end. The pushing end is disposed and moving inside the space under a tension of the biasing member.

Abstract: A pump system may include a blown-in dip tube connected to a valve body and having a connection which may include an improved blown-in dip tube connector having a swivel adaptor, or a rotatable connector, which creates a fluid path from a blown-in dip tube of a bottle to a trigger sprayer. The swivel adaptor, or rotatable connector, may also include a body or head which may be attached to a valve body, tube retainer, or valve retainer of a trigger sprayer.

Abstract: A valve system for a trigger sprayer including a valve forming an air spring with a portion of the trigger sprayer and being made of a flexible or elastomeric material. The trigger sprayer may include an air-spring valve system wherein the air-spring valve system provides precompression during a pump stroke. The precompression forces developed in the valve system during a pump stroke may originate from an air valve or air pocket trapped between a portion of a valve body and a part of the valve system. For example, a valve may be inserted in a tube retainer which is connected to a valve body of a trigger sprayer. Air trapped in a chamber or space between a portion of the valve and the tube retainer may provide a force against the valve such that a certain force must be applied to the valve before it allows product to be released.

Abstract: Fluid discharge head having a discharge nozzle which can be placed on a discharge device and which holds a medium guide and a medium outlet at the end of a medium guide, in the region of the medium outlet a movable closure element that can be moved into an open position is provided and, for the purpose of actuating discharge, the discharge nozzle and the discharge device can be moved axially towards each other, for which purpose the discharge nozzle has a skirt to form a sliding guide with a section on the discharge device, the skirt (9) of the discharge nozzle (5) being assigned a second, additional skirt (12) in order to form an annular bush (13) which can be mounted such that it can be displaced longitudinally on a section (11) of the discharge device (2) that is formed as an annular shaft.

Abstract: A fluid dispenser comprising: a fluid reservoir (1) provided with an opening (10); and a dispenser member (2, 3, 4, 5, 6), such as a pump or a valve, mounted on the opening (10) of the reservoir, the member forming a fluid chamber (C) that is provided with an inlet valve (28, 43), an outlet valve (47, 511), and a lip (42) that is movable in leaktight sliding in a cylinder (27) between a rest position and a depressed position, so as to cause the volume of the chamber (C) to vary, and the fluid in the chamber to be driven through the outlet valve towards a dispenser orifice (50); said container being characterized in that, in the proximity of the depressed position, the inlet valve defines a first escape path (F1) that puts the reservoir (1) into communication with the chamber (C), the chamber, in the proximity of the depressed position, communicating with the outside through a second escape path (F2) that passes via the outlet valve and the dispenser orifice so that, in the proximity of the depressed position,

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

Abstract: A dispenser includes a hollow containment body (2) able to be inserted in a bottle and including an orifice (5) for the suction of liquid from the bottle, a ring nut (21), able to be screwed onto the neck of the bottle, including an annular shoulder (22) covering and associated to an annular lip (2d) of the containment body. The dispenser further includes a piston (10) able to slide within the containment body between a raised position and a lowered position, a hollow stem (7) axially able to slide within the containment body, associated inferiorly to the piston and superiorly to a dispensing spout (8) to command the actuation of the piston and dispense fluid contained in the bottle. Also provided is a retaining ring (11) integral with the containment body and inserted therein to guide the stem in its travel within the containment body.

Abstract: A dispensing device is disclosed having a cylinder, a piston disposed in the cylinder and moveable in priming and dispensing directions, including a spring device biasing the piston to move in the priming direction at a predetermined rate, and an operating plunger connectable to the piston and moveable along a path to move the piston in the dispensing direction. The operating plunger has an engagement device and is moveable between an engaged position in which the engagement device is connected to the piston and movement of the plunger along the path is transmitted to the piston, and a disengaged position in which the engagement device is disconnected from the piston and movement of the plunger along the path is independent of the piston. The engagement device is arranged such that movement of the plunger between the engaged and disengaged positions is of a different kind to movement along the path.

Abstract: Disclosed herein is a hand-operated spray pump configured to discharge a predetermined amount of content upon pressing a button and to suction a residual portion of the content in an end of a nozzle after discharging the content, the hand-operated spray pump including a housing forming the external appearance of the pump, a housing cap configured to seal the internal space of the housing from the outside, the closure configured to mount a container containing content in the housing, the closure being integrally formed with the housing cap, a stem configured to move upward and downward while being connected to the lower end of the button, the shaft configured to move upward and downward along the inside of the housing cap while being coupled to the outside of the stem, a piston configured to move upward and downward along the inner wall of the housing, a compression spring provided between a side protrusion formed at the upper end of the shaft at the side of the shaft and the housing cap, an opening and closin

Abstract: The invention pertains to a cartridge (1) with at least one chamber (6a, 6b) for accommodating a substance that respectively features a dispensing opening (11a, 11b) and another opening that is closed by a piston (8a, 8b) that can be displaced in the chamber and serves for dispensing the substance. The cartridge (1) furthermore features a piston rod mechanism (4) for displacing the piston (8a, 8b) in the chamber (6a, 6b). In this case, the piston rod mechanism is composed of several piston rods (14, 14a, 14b, 15, 15?) that can be transferred from a first dispensing stage to a second dispensing stage with the aid of a spring element (18, 18a, 18b).

Abstract: Device for dosing dyes in solution or dispersion for the preparation of dye baths for textile materials, comprising a plurality of pipettes (1) individually connected to corresponding bottles or containers (6) containing the said dyes, the said bottles or containers being respectively connected to a dosing head (8) through corresponding ducts (9) from which the dyes exit. The device comprises programmable means (EU) which individually control the said pipettes (1) and respective electrovalves (4) and which, depending on the formulation programmed to realize a dye bath, operate the automatic subdivision or selection of the electrovalves (4) in two groups.

Abstract: A trigger pump dispenser comprises an outlet valve which is adapted to open an outlet port when a pump chamber decreases in volume as liquid therein is dispensed through the outlet port, and which is adapted to close when the pump chamber increases in volume. The outlet valve comprises a precompression valve operable to allow liquid through the outlet only after a predetermined elevated pressure is established in the pump chamber. The valve has a movable valve member carried on or by a spring member which biases the valve member to a closed position but flexes in response to the elevated pressure in the chamber acting on the valve member to move the valve member to an open position so that liquid can pass from the chamber and thereafter be dispensed through an outlet nozzle.

Abstract: A fluid delivery device for discharging a fluid having a housing, a piston pump, a biasing mechanism, and a trigger mechanism. The housing has a fluid discharge outlet. The pump has a pump chamber casing for fluid storage, a piston sliding in the pump chamber, a piston plunger, and a delivery channel leading to the housing outlet. The biasing mechanism biases the piston pump casing towards the housing outlet. The trigger mechanism has a catch member and a restraining member movable by a manually actuatable trigger from a cocked to a triggered configuration. The cocked restraining member engages the catch member to prevent movement and fluid discharge. A triggered restraining member disengages from the catch member for movement of the casing towards the housing outlet to discharge fluid from housing outlet.

Abstract: An epoxy injection controller including a housing having a housing body and a handle, the housing body having a front wall, opposing side walls, a bottom wall, and a rear wall, and the handle having a front wall. A cartridge holder configured to receive a cartridge of material is disposed within the housing. A trigger having a first end and a second end is rotatable between a locked position and an unlocked position. A rotatable link member having a first end and a second end is disposed within the housing, and is in engagement with the trigger. An actuator for dispensing material from the cartridge is selectively engaged with the link member. The actuator dispenses material from the cartridge when the trigger is unlocked, and the actuator is retracted from the cartridge and prevented from dispensing material from the cartridge when the trigger is locked.

Abstract: Liquid dispensing systems for use with a bag having a pre-attached spigot are shown and described, in one example, a system includes a cavity for receiving the bag of liquid. A spigot-recess is configured to engage the spigot. A top plate assembly is locatable at or near the top of the system, the top plate assembly including a pressure plate for placing downward force on the bag of liquid. The system also includes a lifting plate for placing an upward pressure on the bag of liquid.

Abstract: A two stage grease gun with a handle capable of being actuated by a user is provided. The gun includes a high volume/low pressure piston for delivery of grease at a high volume and low pressure. A high pressure/low volume piston for delivery of grease at a high pressure and low volume is also included. Acutation of the handle by the user causes both pistons to move. A by-pass check valve is present and is configured to actuate based upon a backpressure. The by-pass check valve is not actuated by the user and effects the amount of grease dispensed by way of the high volume/low pressure piston. An associated method is also provided.

Abstract: A manually operated personal care pump, wherein a twisting motion is converted into a linear displacement that compresses the fluid in the accumulator. Pumps of this type may typically dispense between about 30 and 1000 ?L of product per dose. The removal of the conventional button actuator at the top of the pump, allows the aesthetic intent of the design of the package to be carried all the way to the top of the package. It also, enables the top of the pump to serve as a customizable product applicator.

Abstract: A spring member extending from a first end to a second end about a longitudinal axis, the spring having an inherent bias to assume an extended position with a first end spaced from the second end along the axis, the spring assuming compressed positions when compressed by forces applied parallel to the axis, in the compressed positions the spring resiliently urges its first and second ends axially away from each other toward the extended position, the spring member having a wall in the shape of a solid of revolution rotated about the axis and defining a central cavity therein open at the first end of the spring and substantially closed at the second end of the spring, the wall when in the unbiased extended position having a greatest diameter at the first end and a least diameter at the second end, a plurality of openings through the wall, the openings disposed symmetrically both circumferentially and axially relative to each other.

Abstract: “Flairosol” dispensing devices are presented. They utilize a combination of Flair® technology, precompression valves and aerosol like pressurization of the dispensed liquid. An exemplary device has a main body comprising a pressure chamber, the latter being provided with a pressure piston and a pressure spring, a piston and a piston chamber which draws liquid from a container, and fills the pressure chamber with that liquid as a user operates a trigger in various compression and release strokes. The piston chamber has both an inlet valve and an outlet valve, which serve to prevent backflow. A dome valve can be provided near the outlet channel at the top of the dispensing head, such that once its pressure is exceeded by the liquid, it opens and allows for a spray. Alternatively, in an activated embodiment, the dome valve is locked unless opened by a user.

Abstract: A pump for dispensing a liquid product, including a pump body and a dispensing head manually movable on the latter, the head including a cylinder forming a dosage chamber of the pump, slidingly mounted in the pump body, and a channel allowing the passage of the product or air from the dosage chamber towards an ejection orifice. The rod includes means for airtightly sealing the channel consisting of a peripheral shoulder capable of coming to a rest against a complementary sealing seat arranged in the cylinder, the opening of the channel being performed by separating the sealing seat from the cylinder opposite the shoulder of the rod after the rod reaching its stop early during the axial movement of the cylinder in the pump body.