Abstract: A novel hand held water-misting apparatus (8) comprising of a latex tubing (10) having a first end and a second end, a valve open-close type (12) having a first end and second end, a misting nozzle (14) having a first end and a second end having a small misting hole, a shrink sleeving (28) securely attaching said valve open-close type (12) and said misting nozzle (14), a water hose connector (16), a flexible strap (26) having a first end and a second end, a pinch clip (24) having an open position and a closed position, an expandable decorative enclosure (18) having a first end and a second end. Said first end of said latex tubing (10) securely attached to said first end of said valve open-close type (12) by a tie clamp (31). Said second end of said latex tubing (10) securely attached to said water hose connector (16) by a tie clamp (30).

Abstract: A fluid product sample is provided in the form of a substantially flat dispenser. A preferred embodiment includes (1) at least one thermoformed shell forming part of a reservoir and defining a deformable actuation wall; (2) an additional element, such as a capsule-forming substrate or film or a thermoformed shell for finishing off the reservoir, with the reservoir formed in this way containing at least a gas; (3) a spray orifice through which the fluid is sprayed; (4) a porous material piece which is capable of retaining a quantity of fluid and which is disposed upstream from the spray orifice; and (5) a support member fixed to the thermoformed shell to hold the porous material piece in place. The spray orifice is formed by the support member.

Abstract: A fluid dispenser, including a fluid reservoir formed with an opening, the reservoir including a deformable flexible pouch in which the fluid is stored at a pressure substantially equal to or slightly lower than atmospheric pressure; a fluid dispensing system including a dispensing outlet; and a feed duct connecting the opening of the reservoir to the dispensing system; and wherein the flexible pouch contains a piece of porous material.

Abstract: A dispenser for dispensing a fluid, said dispenser comprising: a reservoir (3) containing said fluid and provided with at least one actuating wall (10) on which pressure is exerted to reduce the volume of the reservoir, said reservoir being provided with resilient means (4) suitable for increasing the volume of the reservoir; a dispensing orifice (50) via which the fluid is dispensed as a mixture with a gas, so as to generate a two-phase spray; and a removable closure element (12) for closing the dispensing orifice (50), thereby isolating the reservoir from the outside; said dispenser being characterized in that the resilient means are stressed so that the reservoir defines a minimum volume so long as the closure element (12) closes off the dispensing orifice.

Abstract: Methods of generating pores in thin sheets of material, typically thin polymer films, are provided. The methods allow for generation of pores which uniformly penetrate the material. The method comprises laminating a thick film onto a thin film, then directing a laser source onto the thin film so as to form pores through the thin film. The increased stiffness conferred by the thick film reduces wrinkle formation in the thin film, resulting in uniform thickness of the thin film and consequent uniformity of pore depth. The invention further provides aerosolization containers and devices comprising membranes formed according to the invention.

Abstract: A dispenser device for dispensing a fluid substance in spray form, said device comprising a reservoir (13) containing the fluid substance to be dispensed, and a spray orifice (16), said reservoir (13) including at least one actuating wall (131) that can be deformed by applying a pressing force (F) so as to reduce the internal volume of the reservoir (13) and thus to exert a pressure on the fluid substance so as to deliver it through the spray orifice (16), said dispenser device being characterized in that said at least one actuating wall (131) has a predetermined threshold of resistance to deformation that must be overcome in order to deform it.

Abstract: A device for dispensing a fluid product includes a reservoir configured to contain a fluid product and a spray orifice associated with the reservoir. The reservoir may include at least one actuating wall having a predetermined threshold resistance to deformation. The actuating wall may be configured to deform in response to pressure exerted on the actuating wall so as to cause the product to be sprayed out from the orifice. When pressure exerted on the actuating wall is less than a threshold pressure Ps sufficient to overcome the predetermined threshold resistance to deformation of the actuating wall, substantially no portion of the product is sprayed from the spray orifice. At least upon a first use of the device, continuous exerting of the threshold pressure Ps on the actuating wall causes spraying of the product from the spray orifice for a spray duration that is capable of being altered.

Abstract: A device for containing and dispensing a fluid product, such as a cosmetic product, in the form of a spray. The device includes a reservoir containing the product at substantially atmospheric pressure, with the reservoir having flexible walls that preferably do not have shape memory. The device is equipped with a spray member for spraying the product in response to pressure exerted on the flexible walls of the reservoir, and an anti-air-intake element provided in order to prevent any entry of air inside the reservoir when said pressure ceases. When pressure is applied, the walls are deformed and the product is sprayed from the container. After dispensing is completed, the walls are maintained in the deformed state because air is prevented from entering the container. As a result, the next spraying action occurs more immediately and consistently because the container remains substantially filled with the product as the volume of the container is reduced upon deformation of the container walls.

Abstract: The invention realizes a spraying device for dispensing liquids under the form of foam by the deformation of a container achieved by squeezing with a hand, comprising: a first body (3) provided with means of watertight coupling (31, 32) to the neck of said container; said first body enclosing a first chamber (33) where the air-liquid mixture is made and having at least one filter element (5) fitted on the spraying duct of said mixture suited to form the required foam and valve devices (64) to restore the air inside the container. Said device also comprising: a second body (6) suited to determine with said first body (5, 6) a second chamber (61) suited to containing the volume of liquid found in a suction tube (7) in said container, thereby preventing liquid from being discharged during the first spray.

Abstract: A dispenser device is provided for dispensing a fluid substance in spray form. The dispenser device comprises a reservoir containing the fluid to be dispensed and a spray orifice. The reservoir includes at least one actuating wall that can be deformed by applying a pressing force.

Abstract: A device is disclosed for the automatic spray application of paint. The device has a paint container and a spray nozzle arranged in close connection and adapted to provide paint from the container to the spray nozzle during the spray application. A dosing apparatus regulates the compression of an external surface against the inner volume of the paint container and thereby forces paint out of the container and into the spray nozzle through an opening of the container. A number of receiving members are adapted to receive and hold the paint container close to the spray nozzle, such that the paint container is detachable and removable from the device when replacing a paint container. The paint container has an elongated feeding tube, at its opening, that is held by the receiving members when the tube is inserted in the nozzle.

Abstract: A dispenser (11) with an atomizing nozzle (15) contains a medium chamber (20) with the medium (24) to be discharged. The pump plunger (21) delivering the medium (24) is hydraulically operated by the pressure of a pressure fluid (25), which is manually applied by pressure on a pressure chamber (28) constructed as a squeezing bottle or bag. Several dispensers can be jointly manufactured and sold in chain form.

Abstract: An airless squeeze bottle sprayer comprised of a tube retainer, an orifice cup and a closure. The tube retainer has a product outlet port, a post, and at least one tangential apertures through which fluid is expelled from within the container. The orifice cup has an annular mixing or turbulence chamber wherein the fluid from within the container is mixed up before being expelled out of the orifice cup through a discharge orifice. A dip tube depends from the tube retainer and defines a path for the fluid from the bottom of the container to the annular mixing chamber. When the container is squeezed, fluid is forced up through the dip tube into the mixing chamber and out of the container through the discharge orifice in the orifice cup. Any air that is introduced into the container and expelled out of the container is done so through the same path as the fluid, the sprayer lacks any distinct or separate air ports.

Abstract: A spray dispensing head for a squeeze dispenser is disclosed. The dispensing head includes passageways for directing streams of air and liquid to a mixing chamber wherein the liquid is broken up into droplets and emitted as a fine spray through an orifice. The device includes a valve which is operated by a push-pull motion. When the valve is closed, the liquid is sealed off from the atmosphere, thus preventing drying or contamination of the liquid product.

Abstract: A portable combination fan and humidifier includes a non-rigid water reservoir, a fan, a fastener for securing the reservoir and fan together, and a holder for facilitating carrying. In use, one hand of a user can hold the reservoir and the housing of the fan to squeeze the reservoir for shooting out a spray. At the same time, the fan is turned on to spray the spray into air. This can enhance environmental conditions.

Abstract: A portable sprayer device which affords protection for the liquid concentrate container. A versatile spraying capability is also provided as well as an apparatus producing a vacuum function, an air gap and a spill-proof bottle feature. The sprayer device is particularly suited for dispensing cleaning, germicidal, sanitizing, insecticidal, deodorant materials and any other similar chemical concentrate.

Abstract: A dispensing head for a squeeze bottle sprayer includes a rotatable valve. The rotatable valve has both an air control notch and a fluid control notch. Upon rotation of the valve, the notches cooperate to vary the amount of air and or fluid discharged by the dispenser. The density of the stream may therefore be varied.

Abstract: The invention includes a device for dispensing in atomized powder form a single dose of a fluid product. A fluid product container contains a single dose and is connected to an atomizing orifice. At least one gas container is connected to the orifice. A means is provided for simultaneously emptying the fluid product container and the gas container so as to cause a biphasic atomization of the fluid product with the gas at the atomizing orifice.

Abstract: A squeeze bottle atomizer comprised of a tube retainer having a product outlet port in a conical shaped central post through which fluid is expelled from within the container. A plurality of air inlet ports are located adjacent the central post and allow air to be forced and sucked out of the container when squeezed as well as return and be sucked into the interior of the container when the container is released. The orifice cup has an annular mixing or turbulence chamber wherein the air and the fluid from within the container are mixed before being expelled out of the orifice cup through a discharge orifice. The axis of the product outlet port is coincident with the axis of the discharge orifice. A dip tube depends from the tube retainer and defines a path for the fluid from the bottom of the container to the annular mixing chamber.

Abstract: A method, system and sprayer for applying adhesives, or other coatings, is disclosed herein including a positive displacement pump having an inlet connected through a dispensing nozzle to a reducible volume container. The reducible volume container may be located in a more rigid container such as a cardboard box. As the positive displacement pump is operated, a suction on the collapsible container is drawn by the positive displacement pump. The pump may pump adhesives, or any other fluid material, preferably into an attached hose and through a bayonet type spray wand. The spray wand may have a replaceable tip to alter the spray coverage and may be activated by a trigger.

Abstract: Apparatus including two containers, two liquids or liquid mixtures pressued within the containers, a blending section for dispersing intimately one liquid into the other, and a nozzle providing sufficient flow resistance so that the moieties remain liquid in the blending section, and vaporization of the vaporizable moiety occurs within and/or beyond the nozzle.

Abstract: A kit for retrofitting a plumbed eyewash station is provided. The plumbed eyewash station includes a basin and an outlet pipe mounted within the basin. Prior to retrofitting the plumbed station, the outlet pipe is used to dispense water delivered thereto by a facility's plumbing system. The retrofitting kit includes a nozzle support and a self-contained eyewash fluid delivery system. The fluid delivery system includes a portable container and a nozzle in fluid communication with the container. The portable container contains eyewash fluid. To retrofit the plumbed station, the nozzle support is mounted to the outlet pipe; the portable container is placed on a support surface above the nozzle support; and the nozzle is mounted to the nozzle support. The kit preferably includes an activation door and an actuation strap. The activation door is rotatably mounted to the nozzle support, and the actuation strap extends from the nozzle.

Abstract: A modular system for atomizing and delivering liquids to a substrate. The modular system comprises a liquid module, a means for providing an atomizing agent, a nozzle assembly and an actuator which is changeable between a first closed position and a second open position, for selectively allowing the atomizing agent to flow from the means for providing atomizing agent to the atomizing agent channel and for selectively allowing the liquid to flow from the cavity to the liquid delivery nozzle. The modular system atomizes liquids into a narrow distribution of particle sizes without the use of propellants or solvents. The modular system has replaceable liquid and atomizing agent modules. A method for atomizing liquids is also disclosed.

Abstract: A spray dispensing device is provided which can be used with non-pressurized containers. The device includes passageways for directing streams of air and, liquid where the liquid is broken up into droplets and emitted as a fine spray through an orifice. An annular air passageway is concentrically disposed around a liquid passageway, and the air is lead through air swirl passages, where the annular stream of air is given a rotary motion as the result of swirl vanes forming the air swirl passages. The velocity of air past a product passageway exit orifice also creates a Bernoulli effect which reduces pressure at that orifice, which acts to draw liquid to the spray orifice. The device may include a dip tube for the liquid which is provided with a check valve for retaining liquid at a high level in the dip tube after each spray cycle so that spraying is nearly instantaneous upon actuation.

Abstract: A nozzle for dispensing a liquid or semi-liquid substance (P) and designed to be mounted on a tank (R) suitable for being put under pressure. The nozzle is of the type comprising a thimble (1) and moving shutter (2) housed inside the thimble. The thimble (1) is provided with a coupling end (11) for coupling to the tank (R) and an ejection orifice (10). The shutter (21) is constituted by a rod (21) carrying a plug (20) at an outer end thereof. The plug (20) cooperates with the ejection orifice (10) to form a delivery valve. The rod (21) also carries a transverse wall (22) at an inner end thereof. The wall (22) leaves a passage for the substance (P) and cooperates with a resilient return means (3) for returning the moving shutter (2) towards a closed position in which the plug (20) is engaged in sealed manner in the ejection orifice (10).

Abstract: An apparatus and method capable of diluting nasal sprays containing addictive compounds. The user can safely and gradually withdraw from use of nasal sprays with successive dilutions using the apparatus having at least one indicia and a pre-selected level on the container. The spray is administered by the user using the method by depleting the nasal spray to the pre-selected level and replenishing with a diluent. The method steps are repeated until the concentration of the nasal spray is substantially reduced.

Abstract: The invention relates to a container for flowable cleaner products, particularly for liquid thixotropic WC bowl cleaners of which the thixotropic properties cause the liquid WC bowl cleaner to adhere to vertical surface. It is the object of the invention to provide a container having a spray head which causes the flowable cleaner product, and particularly the afore-said WC bowl cleaner, to be distributed in an optimum manner and which at the same time can be sealed and closed in a child-proof manner. To this end, the container is equipped with a spray head which consists of a cylinder-like basic body and of a mandrel-like body having a plurality of spray orifices, with the geometry and the relative arrangement of the cylinder-like and mandrel-like bodies being such as to enable the required optimum distribution to be obtained, with a special design of the closure cap providing for child-proof sealing and a releasable engagement thereof with the spray head.

Abstract: A pump sprayer is disclosed for dispensing fluids such as insecticides and herbicides. The sprayer comprises a supply container which holds the fluid to be dispensed, a manually-operated piston pump, a pressure vessel or accumulator, and a manual control valve for controlling fluid dispensed through a spray wand. The accumulator includes an elastomeric bladder which is adapted to accumulate fluid from the pump and to deliver the fluid to the spray wand at a desired pressure. In order to provide a pump sprayer which can deliver fluid at a substantially constant pressure from a fluid supply contained in conventional containers, the pump and elastomeric bladder are configured to pass through the fill openings of the containers and to be secured therein during operation of the sprayer.

Abstract: The disclosure is directed to a multi-directional defensive spray container. It includes a regular plastic material bottle that can be squeezed such as a small shampoo bottle. Within the neck of the bottle there is located a rubber grommet having an evacuation tube attached thereto which extends into the bottle. At the opening of the neck of the bottle there is located a T-washer having an upper flat surface. A screw cap is screwed over the neck of the bottle and the top of the cap has a multiple of holes therein that will seal against the top of the T-washer when the cap is screwed down. An O-ring is placed over the neck of the bottle and will seal any liquid from escaping with the interior wall of the screw cap. Once a defensive liquid is placed within the bottle, a mere 1/4 turn of the screw cap is enough to expel liquid through the multiple of holes when the bottle is squeezed. The bottle can be used in any position to expel the liquid.

Abstract: A fluid-tight container adapted to contain a fluid, volatile solid, or absorbent for a fluid, in which at least a portion of the container includes a material which, when sufficiently stretched, develops sufficient porosity to allow passage of the fluid through the material. In some embodiments, the material may be a film. For example, the film may be a filled film. As another example, the film may be an elastic film, such as a hard-elastic film. In other embodiments, the material may be a laminate. Components of the laminate may be a film or a nonwoven web, in which case the film may be a filled film or an elastic film, such as a hard-elastic film. Desirably, the laminate will include a film and a nonwoven web. The fluid-tight container may include a fluid-absorbing solid, such as silica gel or activated carbon for absorbing moisture or odors. In such case, the movement of fluid through the material is into the container. Alternatively, the fluid-tight container may include a liquid.

Abstract: A system of dispensing viscous liquid, such as vegetable oil containing products is provided which includes a sealed flexible barrier pack filled with viscous liquid, preferably filled with a viscous liquid oil having a viscosity of about 60 cps or greater. The flexible barrier pack includes a sealed fluid outlet located in the sealed flexible barrier pack. A manual pump sprayer preferably a hand pump sprayer of the trigger type is provided for delivering vegetable oil from the flexible barrier pack to a pre-selected surface such as a griddle in a fast food restaurant. Desirably, the hand pump sprayer includes a first and second discharge outlet to discharge pressurized liquid to the atmosphere along intersecting discharge axes.

Abstract: A system and method for spraying single or multiple component fluid systems onto a surface. The spray applicator utilizes a venturi effect to independently draw fluids from separate containers, atomize the fluids and spray the fluids in a desired pattern onto a surface. The atomized streams generally overlap so that the fluids mix prior to contacting the target surface. In one embodiment, the fluids are retained in flexible containers separately connected to a spray applicator by flexible tubes. The flexible containers include a fitting for receiving a fluid draw tube and a releasable closure for expelling excess pressure within the container.

Abstract: A self-contained emergency eye wash station for dispensing eye wash fluid contained in a flexible container comprises a housing, a reservoir, and a platen. The housing supports the flexible container and supports a nozzle in fluid communication with the flexible container. The nozzle dispenses the eye wash fluid from the flexible container. The housing includes a drain capturing the eye wash fluid dispensed from the nozzle. The reservoir collects the eye wash fluid captured by the drain, and the reservoir is slidably mounted to the housing. The platen is connected to the reservoir. The platen is slidably movable relative to the housing and is located immediately above the flexible container. The platen presses downward on the flexible container with a downward force proportional to a weight of the eye wash fluid collected in the reservoir. The transfer of the weight of the eye wash fluid collected in the reservoir to the platen maintains a constant flow of eye wash fluid dispensed from the nozzle.

Abstract: An injector-type atomizer with a simple structure which is capable of stepwise spraying a medicament such as vaccine drawn into a cylinder by a regular amount. The atomizer comprises a cylinder having a spray nozzle at a front end thereof, a piston fitted into the cylinder and a rod having a front end attached to the piston and a rear end projecting from a rear end of the cylinder. Between the cylinder and the rod there is provided an elastic member which is crushable in a stepwise manner or an engagement mechanism in which the engagement is released by a predetermined pushing force.

Abstract: A portable misting device and fan for use by sunbathers and those engaged in athletic pursuits. The fan encloses a fan blade unit and the misting device includes a body which contains a volume of a liquid and which is mounted to a rear of the fan by a mounting bracket. A spray applicator extends from the body and is in a direction above and toward a front of said fan blade unit. The spray applicator is actuable to withdraw fluid from within the misting device body and to supply it as an atomized spray in front of the fan blade unit. The fan blade unit cools and distributes the spray in a direction chosen by the user.

Abstract: A self-contained emergency eye wash station for dispensing eye wash fluid contained in a flexible container comprises a housing, a reservoir, and a platen. The housing supports the flexible container and supports a nozzle in fluid communication with the flexible container. The nozzle dispenses the eye wash fluid from the flexible container. The housing includes a drain capturing the eye wash fluid dispensed from the nozzle. The reservoir collects the eye wash fluid captured by the drain, and the reservoir is slidably mounted to the housing. The platen is connected to the reservoir. The platen is slidably movable relative to the housing and is located immediately above the flexible container. The platen presses downward on the flexible container with a downward force proportional to a weight of the eye wash fluid collected in the reservoir. The transfer of the weight of the eye wash fluid collected in the reservoir to the platen maintains a constant flow of eye wash fluid dispensed from the nozzle.

Abstract: The invention provides an electrostatic spray gun including a replaceable fluid container a nozzle outlet, apparatus for applying high voltage to the liquid and a spring loaded trigger piston for pressurizing the liquid through the outlet. The piston has axially inner and outer parts for forming a lubricant chamber therebetween. The lubricant seals the paint forward of the piston during pressurization and prevents the piston from being locked up during reciprocation.

Abstract: A spool for rotatably supporting a roll of toilet paper and dispensing fragrance from opposed ends of the spool. The inventive device includes a roll engaging dispensing assembly for positioning within a roll of toilet paper. A pair of mounting assemblies project from opposed ends of the roll engaging dispensing assembly for rotatably supporting the toilet paper relative to a roll holder. The roll engaging dispensing assembly and the associated toilet paper roll can be manually compressed to dispense a fragrance material from opposed ends thereof.

Abstract: A liquid foam-discharging, squeezable bottle is disclosed, which has a twist cap screwed onto the vessel body, the twist cap being composed of an inner cap and outer cap. The inner cap has formed therein two independent fluid-passing mechanisms at about its central position and at a position adjacent thereto, respectively. One of the fluid-passing mechanism is a liquid foam-generating mechanism comprising a pipe-shaped member having a net screen on one end thereof, and the other functions as a check valve. The outer cap has engaged inside of the foam-discharging opening an adapter fully covered with a net screen on one end located nearer to the contents of the vessel. This vessel enables one to rapidly discharge a uniform, creamy liquid foam by simple squeezing operation and, if desired, the foam can be sprayed by using an adapter having a small-diameter nozzle.

Abstract: An electrostatic spray gun includes a housing for receiving a replaceable fluid container, a nozzle from which fluid is to be sprayed, a device for expelling fluid from the container, and a high voltage generator for applying electrostatic potential to the fluid to form an electrically charged atomized spray at the nozzle. An electrical path from the generator to the nozzle passes through the fluid, entering the fluid prior to its emergence from the nozzle. The container is rigid and fluid is expelled from the container by a piston under pressure exerted thereon through a forward part of the generator.

Abstract: Disclosed herein is a dispenser comprising an inner member including a portion having an axis and a first end closed by a transverse wall, being resiliently displaceable in the direction of the axis between a collapsed condition and a normally extended condition, and defining an interior cavity adapted to contain a substance in the form of a vapor, an outer member movable relative to the inner member with respect to the axis and including a generally cylindrical portion in closely fitting telescopic relation to the inner member and having a first open end adjacent the transverse wall of the portion of the inner member, and a second end, and a wall closing the second end of the outer member cylindrical portion, and an aperture in at least one of the inner and outer members for affording air flow therethrough relative to the interior cavity in response to displacement of the inner member portion between the collapsed and extended conditions, whereby, the application of force in the direction of the axis causes

Abstract: The invention relates to a dispenser (1) comprising a container (2) which is to be partly filled with liquid active substance and has a wall that is at least locally resiliently deformable. The dispenser further comprises two immersion tube channels (9, 10) extending from a point adjacent the bottom of the container up to the top of the container (2), one channel terminating in a spray nozzle (8) and the other channel containing a wick (4) or similar absorbent material and terminating in an evaporation space that communicates with the atmosphere. In further elaboration of the invention, the spray nozzle (8), the evaporation space and at least one of the immersion tube channels (9, 10) can be formed as a single moulding which can be click-fitted in the mouth of the container (2) so as to seal it.

Abstract: A spray dispensing device is provided which can be used with non-pressurized containers. The device includes passageways for directing streams of air and liquid to a mixing chamber wherein the liquid is broken up into droplets and emitted as a fine spray through an orifice. An annular air passageway is concentrically disposed around a liquid passageway, both of which lead to the mixing chamber wherein the annular stream of air will be deflected by tapered walls of the mixing chamber to converge and impinge open the core stream of liquid, at a point in proximity to the orifice. The device may include a dip tube for the liquid which is provided with a check valve for retaining liquid at a high level in the dip tube after each spray cycle so that spraying is nearly instantaneous upon actuation.

Abstract: The invention relates to a flexible spray bottle (10) for nasal spray, onto the bottle neck (14) of which a spray cap (12) is placed. The top wall (17) of the spray cap (12) contains a spray opening (20) and, on the underside, a connection piece (18) for a dip tube (21). A mixing-air passage (30, 31) extends between the connection piece (18) and the dip tube (21), with the result that a liquid/air mixture leaves the spray opening (20). An annular flange (15) of the spray cap (12) contains an air-admitting passage (23) which extends radially in the flange and is angled inside the spray cap towards the interior of the bottle (10). The angled part contains an air-admitting valve with a valve body (28) which is pressed against a valve seat (27) in the case of positive pressure in the container and seals off the air-admitting passage (23). In the open position of the air-admitting valve, the valve body (28) rests on supporting arms (29) which make possible the passage of air through the air-admitting passage (23).

Abstract: The present invention comprises a spray bottle in which the pressure resulting from the gripping force applied by the user is amplified and this increased pressure used in generating a spray such as an aerosol or fluid stream. In its preferred embodiment, the invention includes a high pressure chamber and a corresponding piston which is operative for driving fluid out of this chamber at high pressure through a spray nozzle and a low pressure chamber, and a corresponding piston which is acted upon by the hydraulic pressure within the bottle resulting from the gripping force. The low pressure chamber and piston are of larger size than the high pressure chamber and piston. The pistons are rigidly connected so that the force created by the pressure acting on the piston in the low pressure chamber is transmitted to the piston in the high pressure chamber where it is applied over a more limited area, thereby generating greater hydraulic pressure for use in forming the spray.

Abstract: A portable spray system is provided with a plurality of storage containers for receipt and storage of pressurized water from a residential water tap. A manifold connects the storage containers to a segment of hose. The opposite end of the hose is connected to a standard spray nozzle which includes a trigger handle and a threaded discharge end. The water stored in the portable containers and the pressure to pressurize the system are received simultaneously from a standard residential water tap. The only component required for filling and pressurizing the containers is a short filling hose segment having a threaded female connector at each end. To prepare the water spray system for operation, one end of the filling hose is connected to a water tap and the other end of the filling hose is connected to the threaded discharge end of the spray nozzle. The spray nozzle is opened and the water tap is turned on which permits water to flow into the storage bottles. The bottles are filled with water under pressure.

Abstract: A device is used for spraying and atomizing a liquid which is held in a container which can be emptied by air pressure. If in a device of this kind a liquid nozzle projects into a mixture nozzle disposed coaxially in front of it, so that an annular space provided for air around the liquid nozzle is open at the front towards the mixture nozzle, the feed paths for liquid and for air must not be transposed. Such transposition occurs if the container is held upside-down during spraying. In order to avoid this disadvantage two annular spaces are provided, from which passages lead to a mixture nozzle. The two annular spaces communicate with one another via throttle slots. Because of the two annular spaces the liquid can also be sprayed when the container is upsidedown.

Abstract: A container has on a neck portion thereof an external thread for a screw cap and, above the thread a sloping plane in the form of a spiral running around the outside of the container neck over an angle of 360 degrees. A head piece fitted into the container neck has a cylindrical part which bears on the inner side of the container neck and is held firmly on the container neck by a groove-bead connection formed on the outside of the cylindrical and on the inner side of the container neck. A cylindrical part of larger diameter, connected in one piece with the cylindrical part of the head piece, encloses the container neck on the outer side thereof and has on the inner side a sloping plane in the form of a peripheral spiral. The spiral surfaces lie on one another like the flanks of a thread. When the head piece is turned, therefore, the groove-bead connection is released by a wedge effect. The head piece can be removed for reuse of the container by being refilled.

Abstract: A dispenser for dispensing sterile solution which includes a valve to control the dispensing of the sterile solution from a container. The valve comprises a solution outlet and an air inlet opening having an associated filter membrane to filter the air passing into the container. When dispensing the solution, force applied to the container causes the solution outlet to open and prevents access of the solution to the air inlet opening. When the force is relieved, a partial vacuum is formed in the container which causes the solution outlet to close. Air is then drawn into the container via the air inlet opening and through the filter membrane.

Abstract: Liquid to be dispensed is supplied to a dispensing nozzle (88) from a compressible container (30) such as a sachet with a valve-controlled outlet (66) by compressing the sachet through the agency of a pad (46) of resiliently deformable material. The dispensing device is embodied in a hand held unit having a trigger (102) and electrical circuitry (91, 96, 106, 98, 106) for applying high voltage to the liquid in order to effect dispensing of the liquid in the form of an electrostatically charged, atomised spray.