Abstract: In the field of agriculture and aerial firefighting, some example vent systems for aircraft fluid dispersion tanks include a vent-well recessed below the top of the tank. When a gate valve assembly below the tank opens to release fluid for dispersion along the aircraft's trailing flight path, the vent system prevents a detrimental vacuum from developing within the tank. In some examples, a recessed vent exploits the Coanda effect to direct air into the tank without obstructing the pilot's view. In some examples, a low profile scoop above the vent further promotes airflow with minimal visual obstruction. In addition or alternatively, some example vent systems include a lightweight cable connecting the gate valve assembly to a spring-loaded vent. The cable pulls the vent open in response to the gate opening to release fluid. When the gate closes, the cable becomes slack, which allows the spring to close the vent.

Abstract: Containers are provided and include a container body having an opening extending into a hollow interior, and a cap extending across the opening. The cap has an inlet port with an inlet valve configured to couple to a fluid source such that fluid can be delivered through the inlet valve to pressurized the hollow interior of the container body. The cap also has an outlet port with an outlet valve having a cracking pressure at which the outlet valve is configured to move from a closed configuration to an open configuration to dispense fluid from the hollow interior, and a closing pressure at which the outlet valve is configured to move from the open configuration to the closed configuration to prevent fluid from passing therethrough. The cracking pressure is greater than the closing pressure.

Abstract: Disclosed is a container capable of being quickly opened. The container comprises a container body and a container cover, wherein a sealing structure used for sealing the container body and the container cover is arranged on the container cover; the sealing structure comprises a base on the lower side of the container cover; an elastic sealing sleeve capable of being bent and deformed is arranged between the base and the container cover; a pulling plate penetrating the container cover is arranged on the upper side of the base; a gland is arranged on the upper side of the container cover; a rotating pin is arranged between the gland and the pulling plate.

Abstract: A device for delivery of a precise amount of pharmaceutical fluid to the eye is provided. The device includes an ampoule for storing a liquid and an aperture through which the liquid is discharged. The device further includes a vibrating membrane that includes a needle which protrudes from the membrane and extends to the aperture to form a needle valve. The needle valve provides hermetic closure of the aperture to enable preservative-free storage of the pharmaceutical fluid in the device. The system further includes an electromagnetic transducer to shift the membrane back and forth in order to discharge liquid through the nozzle. Finally, the system further includes a vent to permit air to enter the ampoule as fluid is ejected from the ampoule. Preferably this vent includes a filter to prevent ingress of microbes or other contaminants to the ampoule.

Abstract: A liquid dispenser having a liquid reservoir and a discharge head secured thereto, an outlet valve with a pressure chamber and an opposite valve chamber. The liquid reservoir and the valve chamber are each connected at least in phases to a surrounding atmosphere by a ventilation channel. The two channels provided for this purpose, the reservoir ventilation channel and the valve ventilation channel, are separate channels with separate inlets on an outer face of the discharge head.

Abstract: A spray dispenser is provided, the spray dispenser comprising a container for holding a liquid to be dispensed and a dispensing assembly for extracting liquid from said container, the dispensing assembly comprising a pressure-relief valve for release of excessive pressure in the container and a filter arranged to permit egress of gas through the filter, inhibit egress of liquid from the container and to inhibit ingress of contaminants into the container through the pressure relief valve. A dispensing assembly for use is a spray dispenser is also provided.

Abstract: Containers are provided and include a container body having an opening extending into a hollow interior, and a cap extending across the opening. The cap has an inlet port with an inlet valve configured to couple to a fluid source such that fluid can be delivered through the inlet valve to pressurized the hollow interior of the container body. The cap also has an outlet port with an outlet valve having a cracking pressure at which the outlet valve is configured to move from a closed configuration to an open configuration to dispense fluid from the hollow interior, and a closing pressure at which the outlet valve is configured to move from the open configuration to the closed configuration to prevent fluid from passing therethrough. The cracking pressure is greater than the closing pressure.

Abstract: A guiding sheath has a braided layer for improved deflection characteristics and ring electrodes for electrical sensing, mapping and visualization, wherein lead wires for the ring electrodes are passed through lumened tubing position under the braided layer in a proximal portion of the guiding sheath shaft and above the braided layer in a distal portion of the guiding sheath shaft. Moreover, the hemostatic valve includes an improved friction ring with air vents to reduce the risk of air being introduced into the valve.

Abstract: A liquid dispenser, having a large ring, a connecting cover, and a hollow pump frame, the pump frame is movably clamped to the interior of the large ring, the top of the pump frame extends to the outer side of the top of the large circle, a bottom protruding portion of the connecting cover extends into a top groove of the pump frame so as to be movably clamped thereto, a first air outlet is provided on both sides of the bottom of the connecting cover, and a second air outlet in communication with the first air outlet is provided to penetrate through the pump frame. The first air outlet, the second air outlet, the first liquid outlet, and the second liquid outlet can be opened and closed by rotating the connecting cover to change a position relationship between the connecting cover and the pump frame.

Abstract: Device for packaging and dispensing drops of a substance for ophthalmic use, generally fluid, semi-fluid or in suspension, emulsion or oily solution including a dispensing accessory with a first valve made of an elastomer material that allows the substance to pass through when the dispensing accessory is stressed, without allowing outside air to pass through in the opposite direction when the dispensing accessory is relaxed, characterized in that the first valve is covered by a layer of Parylene.

Abstract: The current invention discloses a fluid dispenser especially suitable for ophthalmic treatments and delivering of ophthalmic agents such as eye drops. The fluid dispenser incorporates a tube made from compliant materials as the key dosing component. A first point and a second point on the tube may be acted upon by folding the tube or by external elements, making the segment between the first point and the second point a squeezing section that houses a dosing chamber. The squeezing section may be pressed by an anvil or other structures, pressurizing the fluid contained in the dosing chamber so that once the tube is released on one point, the fluid in the dosing chamber is discharged. With each dosing process, a single dose of the fluid is discharged. In addition, the fluid dispenser is capable of delivering a series of doses of the fluid by repeating the dosing process.

Abstract: A container (100) for isolating first and second fluids, such as beverage concentrate components, until dispensing is provided, as well as methods of assembly and dispensing. The container can have first (111) and second (113) enclosed bodies for containing the first and second fluids to be dispensed and an insert (130) directing fluid from the enclosed bodies, such as toward one or more valves or separate discharge paths (148a, 148b).

Abstract: A spray dispenser is provided, the spray dispenser comprising a container for holding a liquid to be dispensed and a dispensing assembly for extracting liquid from said container, the dispensing assembly comprising a pressure-relief valve for release of excessive pressure in the container and a filter arranged to permit egress of gas through the filter, inhibit egress of liquid from the container and to inhibit ingress of contaminants into the container through the pressure relief valve. A dispensing assembly for use is a spray dispenser is also provided.

Abstract: Device for packaging and dispensing drops of a substance for ophthalmic use, generally fluid, semi-fluid or in suspension, emulsion or oily solution, including a dispensing accessory with a first valve made of an elastomer material that allows the substance to pass through when the dispensing accessory is stressed, without allowing outside air to pass through in the opposite direction when the dispensing accessory is relaxed, characterized in that the first valve is covered by a layer of Parylene.

Abstract: A nebulizer is proposed which includes an insertable container and a securing mechanism for holding the container in the nebulizer such that the container can move back and forth but can not be separated. The securing mechanism is formed by a metal unitary part. The securing mechanism forms a transportation lock for holding the container unmovable in the housing in a delivery state of the nebulizer. The securing mechanism forms a ring with flexible holding fingers.

Abstract: A flexible pouch and valve assembly is provided for aseptically storing a substance, dispensing multiple portions of the stored substance therefrom, and maintaining substance remaining in the pouch in an aseptic condition sealed with respect to ambient atmosphere. The flexible pouch and valve assembly are receivable within a relatively rigid housing, and are adapted to cooperate with a pump for pumping discrete portions of substance from the pouch and through the one-way valve to dispense the substance therefrom. The assembly comprises a flexible pouch defining therein a variable-volume storage chamber sealed with respect to the ambient atmosphere for aseptically storing therein multiple portions of the substance. A one-way valve of the assembly includes a valve body defining an axially-extending valve seat and at least one flow aperture extending through the valve body and/or the valve seat.

Abstract: A fluid dispensing apparatus includes a fluid reservoir and a dispensing assembly. The dispensing assembly includes a housing and a deformable member that define a metering chamber that is configured to receive a predetermined volume of fluid from the fluid reservoir. The deformable member is deformed from a rest position to an eject position and the deformation causes the volume of the metering chamber to change which results in a change in fluid pressure within the metering chamber. An increase in the fluid pressure within metering chamber causes a predetermined volume of fluid within the metering chamber to be ejected and a decrease in the fluid pressure within the metering chamber causes fluid to be drawn into the metering chamber from the reservoir.

Abstract: A closure for a drinking bottle includes a closure cap for fixing the closure to a drinking bottle. The closure cap has a through hole and at least one ventilation opening, and a seal arranged in the closure cap. Either the seal or the closure cap has a web, by which the seal and the closure cap are at least in contact section-wise. The seal is of such a configuration that, upon the occurrence of an increased or reduced pressure in the bottle and/or by axial displacement of the seal in the closure cap, at least a section of the seal that is between the web and an inside wall of the closure cap lifts off the inside wall of the closure cap and thus opens a gap for ventilation of the drinking bottle by the at least one ventilation opening.

Abstract: A spray dispenser is provided, the spray dispenser comprising a container for holding a liquid to be dispensed and a dispensing assembly for extracting liquid from said container, the dispensing assembly comprising a pressure-relief valve for release of excessive pressure in the container and a filter arranged to permit egress of gas through the filter, inhibit egress of liquid from the container and to inhibit ingress of contaminants into the container through the pressure relief valve. A dispensing assembly for use is a spray dispenser is also provided.

Abstract: A tip for dispensing liquid for mounting on a container. A valve includes at least two elements that are mobile in relation to one another, each mobile element including a bearing zone against the other mobile element. One of the mobile elements bears anti-microbial material on or in the immediate proximity of a part of its bearing zone forming a blocking barrier and all surfaces of the dispensing tip in contact with the inside are free of anti-microbial material.

Abstract: Liquid dispensers with a housing, a reservoir for receiving liquid prior to discharge, a discharge opening, and a conveyor device for conveying liquid from the reservoir to the discharge opening. The conveyor device includes a metering chamber with a cylindrical wall, and a piston adapted to the cylindrical wall to allow a sliding movement thereon. The metering chamber and the piston displaced relative to each other between starting and end positions. An outlet side of the metering chamber is adjoined by an outlet chamber, and an inlet side of the metering chamber is adjoined by an inlet chamber. The piston is arranged in the inlet chamber when in the starting position and in the outlet chamber when in the end position. During the transition from the starting position to the end position, the liquid in the metering chamber is pressurized for discharge through the discharge opening.

Abstract: A bulk feed adapter cap for a collection container comprises: (a) a housing defining both at least one fluid-communication opening and one or more air-release openings and (b) a membrane defining an annular, self-sealing fluid-valve for sealing said fluid-communication opening, where the fluid-valve defines at least one aperture. The bulk feed adapter cap may further comprise at least one fluid-communication cap.

Abstract: A spray dispenser is provided, the spray dispenser comprising a container for holding a liquid to be dispensed and a dispensing assembly for extracting liquid from said container, the dispensing assembly comprising a pressure-relief valve for release of excessive pressure in the container and a filter arranged to permit egress of gas through the filter, inhibit egress of liquid from the container and to inhibit ingress of contaminants into the container through the pressure relief valve. A dispensing assembly for use is a spray dispenser is also provided.

Abstract: A fluid dispenser comprising a fluid reservoir (1) and a dispenser member (2), the reservoir (1) comprising a slide cylinder (11) that is cylindrical, and a follower-piston (14) that includes at least one lip (16) that is in sliding contact with the cylinder (11), the slide cylinder (11) being provided with a bottom (12), an equalizing space (E) being formed between the follower-piston (14) and the bottom (12), this space (E) communicating with the outside so as to keep the space (E) at atmospheric pressure, such that, each time fluid is dispensed, outside air penetrates into the space (E), which increases as the follower-piston (14) moves away from the bottom (12); the dispenser being characterized in that a bacterial filter (F1) filters outside air coming into contact with the lip (16) of the follower-piston (11) through the equalizing space (E).

Abstract: Fuel cap apparatus for use with fuel venting systems are described. An example fuel cap apparatus includes a body having a central cavity and a flange. A membrane is coupled to the body to form a passageway therethrough and coated with a material to substantially prevent the flow of liquid and permit the flow of gas through the passageway.

Abstract: A device for packaging and dispensing a flowable product comprises a casing comprising a nozzle for dispensing the product and a container designed to contain the product to be packaged. The casing comprises a rigid bottom, an air renewal and filtration assembly, a filter element, and an air inlet passage located in said rigid bottom. The nozzle comprises a tapered portion that defines a free end of the nozzle, an actuating portion resiliently movable between an engagement position and a rest position. A dose-defining chamber may be isolated from the air contained in the container and may have a determined volume in the rest position. The engagement position may be obtained by engaging the actuating portion against a stationary wall portion, so as to empty the chamber and expel a dose exactly corresponding to the determined volume of the chamber.

Abstract: It is presented an electronics module (10) for use in a fuel dispensing unit (6a, 6b, 6c). The electronics module (10) comprises electronics circuitry (28) and a conductor (18) for connecting the electronic circuitry (28) to the fuel dispensing unit (6a, 6b, 6c). Further, the electronics module (10) has a channel means (14) extending from a first (15) to a second side (16) of the electronics module (10) defining a ventilation channel for the conductor (18) to provide venting thereof in order to reduce fuel vapors at the electronic circuitry (28).

Abstract: The dispensing bottle includes a dispensing head with an air inlet allowing ambient air to enter an opening of a reservoir portion of the bottle, and a filter member that fits over and seals the opening of the reservoir portion of the bottle for filtering the ambient air entering the bottle to prevent contaminants from entering the reservoir portion of the bottle along with ambient air.

Abstract: A device for packaging and dispensing a flowable product comprises a casing comprising a nozzle for dispensing the product and a container designed to contain the product to be packaged. The casing comprises a rigid bottom, an air renewal and filtration assembly, a filter element, and an air inlet passage located in said rigid bottom. The nozzle comprises a tapered portion that defines a free end of the nozzle, an actuating portion resiliently movable between an engagement position and a rest position. A dose-defining chamber may be isolated from the air contained in the container and may have a determined volume in the rest position. The engagement position may be obtained by engaging the actuating portion against a stationary wall portion, so as to empty the chamber and expel a dose exactly corresponding to the determined volume of the chamber.

Abstract: A chemical liquid supply device has a pump provided with a pump chamber which is expanded and contracted by an elastically deformable bellows, and chemical liquid in a chemical liquid container flows into the pump chamber through a suction channel. The chemical liquid in the pump chamber is discharged through a discharge channel to a discharge nozzle. A looped circulation channel for returning the chemical liquid supplied from the pump chamber to the pump chamber is connected to the pump, and provided with an expanding and contracting portion. A filter for filtering the chemical liquid which is returned to the pump chamber is provided to the circulation channel. Since flow resistance of the filter is not applied to the pump when the chemical liquid is discharged from a discharge nozzle, it's possible to discharge a specific amount of chemical liquid from the discharge nozzle with a high degree of accuracy.

Abstract: A flip guide plug structure for a bottle includes a lower main body, an upper main body, a lower plug, a guide pipe, an upper plug, a connection unit and two magnetic members. The upper main body can be opened relative to the lower main body through the connection unit, and then positioned by the attraction of the two magnetic members to prevent an unexpected closing. The flip guide plug structure of the present invention is very convenient for use.

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: A foam spray head assembly includes a push head, a mounting member, a netted member, an air valve, a main plunge, a piston unit, a rod unit, a resilient member, a cylinder unit and a valve. The netted member has a first net and a second net. The air valve has a first groove and a second groove. The main plunge has a first plunge and a second plunge. The first plunge is located in the second groove and defines a first chamber. The piston unit has a first piston and a second piston. The rod unit extends through the main plunge. The resilient member is mounted to the second plunge. The cylinder unit has a first cylinder and a second cylinder. The first piston is movable in the first cylinder and forms a second chamber. The second piston is movable in the second cylinder and forms a third chamber.

Abstract: In certain embodiments, a vial adaptor for removing liquid contents from a vial includes a piercing member and a bag. The bag can be contained within the piercing member such that the bag is introduced to the vial when the vial adaptor is coupled with the vial. In some embodiments, the bag expands within the vial as liquid is removed from the vial via the adaptor, thereby regulating pressure within the vial. In other embodiments, a vial includes a bag for regulating pressure within the vial as liquid is removed therefrom. In some embodiments, a vial adaptor is coupled with the vial in order to remove the liquid. In some embodiments, as the liquid is removed from the vial via the adaptor, the bag expands within the vial, and in other embodiments, the bag contracts within the vial.

Abstract: A fluid dispenser comprising a fluid reservoir (1) and a dispenser member (2), the reservoir (1) comprising a slide cylinder (11) that is cylindrical, and a follower-piston (14) that includes at least one lip (16) that is in sliding contact with the cylinder (11), the slide cylinder (11) being provided with a bottom (12), an equalizing space (E) being formed between the follower-piston (14) and the bottom (12), this space (E) communicating with the outside so as to keep the space (E) at atmospheric pressure, such that, each time fluid is dispensed, outside air penetrates into the space (E), which increases as the follower-piston (14) moves away from the bottom (12); the dispenser being characterized in that a bacterial filter (F1) filters outside air coming into contact with the lip (16) of the follower-piston (11) through the equalizing space (E).

Abstract: The invention relates to a dispensing device for a liquid medium, having a medium reservoir for accommodating the medium, having a dispensing opening for dispensing the medium from the medium reservoir, and having a pressure-equalizing channel which opens out into the medium reservoir and has a microbiologically active filter arrangement inserted therein. According to the invention, the filter arrangement has a liquid filter oriented in the direction of the medium reservoir and a bacteria filter oriented away from the medium reservoir.

Abstract: A spray dispenser is provided, the spray dispenser comprising a container for holding a liquid to be dispensed and a dispensing assembly for extracting liquid from said container, the dispensing assembly comprising a pressure-relief valve for release of excessive pressure in the container and a filter arranged to permit egress of gas through the filter, inhibit egress of liquid from the container and to inhibit ingress of contaminants into the container through the pressure relief valve. A dispensing assembly for use is a spray dispenser is also provided.

Abstract: An emissions device for use with a portable fuel container assembly is provided. The emissions device includes an emissions housing configured to be mounted to the portable fuel container. The emissions housing defines at least one device opening. A membrane is supported by the emissions housing and allows the passage of the vapor and prevents the passage of a liquid. An emissions filter is also located within the emissions housing and is located such that vapor exiting through the device opening must pass the emissions filter.

Abstract: A venting device for a trigger sprayer closure, comprising a venting ring (2) provided with apertures (14) for allowing the passage of fluid, a gasket (4) provided with an aperture (10) covered by a material (12) for allowing the passage of gas but which prevents liquid from passing therethrough, wherein the venting ring (2) is provided with a concentric channel (18) arranged to maintain fluid communication between the one or more apertures (14) of the venting ring (2) and the at least one aperture (10) of the gasket (4) if the relative positions of the respective apertures are changed.

Abstract: A bottle stopper is provided having a cylindrical body formed of a resilient, flexible, elastic material that includes a first cylindrical section adapted to be inserted into an opening of a bottle in sealing engagement with the bottle and a second cylindrical section disposed adjacent the first cylindrical section for extending above the opening of the bottle when the first cylindrical section is inserted in sealing engagement with the bottle. An air passageway is disposed adjacent and extends longitudinally along substantially at least the length of the first cylindrical section and along the internal periphery of the cylindrical body. A visual indicator, preferably a spout, is disposed on an outer surface of the second cylindrical section for identifying the relative location of the air passageway with respect to the visual indicator.

Abstract: A closed loop dispensing system including a mechanical venting assembly which ensures that sufficient air may enter the interior of the container as liquid is being drawn from the container. The mechanical venting assembly of this invention ensures that the vent openings associated therewith will not become plugged with debris.

Abstract: An air filtration device for the vent of a body of a pump used to fit a liquid or semi-liquid product distributor, the device including a filter membrane through which the product may be discharged from opening. The free edge of the membrane is connected to a support element which is tightly fixed on the opening.

Abstract: This assembly is of the type including: a container (4) for containing the liquid; a liquid dispensing device (6), including: a spout (20) through which liquid can pass out and air can come in; and elements (28) for filtering liquid and air passing through the spout (20); and a cap (14) for closing the container (4). One feature of the invention is that the assembly includes elements (38, 41, 39) for encouraging the entrance of air and/or the return of a residual quantity of liquid trapped in the spout (20) after dispensing some liquid, through the filtering elements (28), into the container (4).

Abstract: A volumetric fluid dispensing device can include a fluid reservoir having at least one flexible wall and a dispensing reservoir oriented above the fluid reservoir. The dispensing reservoir can have an overflow return fluidly connected to the fluid reservoir such that the dispensing reservoir holds a measured volume of fluid. A reservoir conduit can be fluidly connected to the fluid reservoir and the dispensing reservoir to allow excess fluid to return from the overflow to the fluid reservoir. A dispensing conduit can also be fluidly connected to the dispensing reservoir to allow fluid to exit the dispensing reservoir. A mechanical wall actuator can be operatively associated with the walls for controllably flexing at least a portion of the walls sufficient to force fluid from the fluid reservoir to the dispensing reservoir via the reservoir conduit.

Abstract: The invention relates to a discharge device for discharging liquid medium, with a pump device with a variable volume pump chamber, a discharge opening for the liquid medium, a feed path between the pump device and the discharge opening, and an outlet valve which is designed to open the discharge opening as a function of the pressure in the feed path, and to a discharge head provided for this purpose. The discharge device or the discharge head has a gas-permeable and liquid-tight air outlet which connects the pump chamber or the feed path to an external environment.

Abstract: A filter apparatus capable of releasing air from a filter body, comprising a filter body held by a holder. The filter body includes a fluid inlet and a fluid outlet. The filter body is disposed in the holder so as to rotate around an axis of rotation that passes through the fluid inlet. The holder includes a front panel. The front panel comprises engaging portions, for temporarily engaging the fluid outlet at either an air releasing position or at a filtering position, and a fixing means for fixing the filter body at each position. The filter apparatus further includes means for rotating the filter body.

Abstract: The invention concerns a container for packaging a liquid (1) to be dispensed in drops. The container is reversibly deformable by air input and is equipped with a head (3) for dispensing liquid through a nozzle (5). The dispensing head (3) comprises a recessed body (4) which is nested inside a neck (10) of the container and which holds a hydrophobic microporous pad (8) arranged upstream of a chamber (9). Chamber (9) is provided with an air reservoir for preventing the liquid from passing through the microporous pad (8) between two liquid dispensing operations, when the nozzle (5) is sealingly obstructed with a cap (6), and for drying a partly hydrophilic and hydrophobic filtering membrane (7) arranged in the dispensing head (3).

Abstract: This end-piece is of the type including two filtering membranes and support portions for supporting the membranes and channelling the fluid through the membranes. According to one aspect of the invention, it includes a connection portion which is moulded over the support portions in order to fix them together and the support portions include an upper support portion, a lower support portion and an intermediate support portion which is arranged between the upper support portion and the lower support portion, a membrane is retained between the upper support portion and the intermediate support portion and a membrane is retained between the intermediate support portion and the lower support portion and the membranes are overmoulded by the connection portion.

Abstract: A fluid product dispensing device that has a container that contains a fluid product, a pump, and a dispensing head that serves as the actuator for the pump. The container is a single molded piece with a neck. The neck of the container has either an opening to accommodate an air filter or has a neck joint that is molded onto the neck of the container, or both. In at least one embodiment, the container also has a shoulder to assist retaining the dispensing head, and a second shoulder to form a maximum amount of actuation.

Abstract: A nebuliser and a container in each case with an aeration device are proposed, the aeration device being designed for the direct aeration of a liquid space in the container. The container comprises a rigid, gas-tight outer case and a closure, which is opened by connecting or inserting a delivery element. A long storage life and long service life with low loss of fluid or solvent are thereby provided in the form of a simple and inexpensive construction.