Abstract: The metered dual dispenser cap is for dual compartmented squeeze type containers which separately contain two distinct materials. The metered dual dispenser cap has a lower portion which is reciprocally attached to an upper portion. The lower portion has two inlets, each regulated by one way valves. The two inlets lead to two chambers which in turn lead through two outlet shafts to two dispensing outlets in the upper portion. The flow from the two chambers to the two dispensing outlets is regulated by two one way valves which are controlled by a push button on top of the cap. The volume expansion of the chambers, as the upper portion is pulled away from the lower portion, may be determined from optional scale gradations on the outer male wall. The scale gradations are increasingly exposed as the upper portion is pulled away to increase the volume in the chambers.

Abstract: Dispensers are provided of the type which include a flow path through which liquid must pass to leave the dispenser. After the dispenser has been actuated to dispense, the flow path then receives reverse flow as the dispenser recovers ready for the next dispensing. This reverse flow limits the possibility of dripping from the dispensing outlet. A flow controller in the flow path automatically adjusts to have little or no interference to the flow of liquid leaving the dispenser and then positions itself to slow down the rate of reverse flow into the dispenser. The dispenser is suitable for more viscous liquids.

Abstract: An improved feeding utensil which includes a container for liquid and a soft spoon shaped feeding portion which receives liquid from the container for feeding, such as for feeding an infant. A preferred embodiment has a one-way valve which functions to allow liquid to flow out from the container into a liquid delivery element, the latter including a reservoir portion for temporarily storing liquid that has passed from the container through the one-way valve, and a spoon shaped feeding portion adapted for feeding the liquid received from the reservoir portion. The liquid delivery element is constructed of soft plastic material or natural or synthetic rubber material. The flexibility of this material facilitates metering of the liquid and also provides a familiar textured feeding cup for inserting into the mouth that is being fed.

Abstract: A low cost trigger sprayer has a housing with a first liquid passage containing a spinner assembly. A pump element is positioned generally horizontally such that pulling the trigger contracts or retracts the element and releasing the trigger permits the element to return to an extended position. An elastomeric spring is positioned between the housing and pump element to improve the return characteristics of the pump element. The sprayer includes a low cost spinner assembly and low cost valving to control the flow of liquid within the sprayer. In one aspect of the invention, the housing has front and rear sections with the rear section having a saddle portion and being hinged to the front section for pivotal movement from an open position for molding the housing to a closed position for operating the sprayer.

Abstract: A low cost trigger sprayer has a housing with a first liquid passage containing a spinner assembly. An elastomeric pump element is positioned generally horizontally such that pulling the trigger retracts the element and releasing the trigger allows the element to extend. The sprayer includes a low cost spinner assembly and low cost valving to control the flow of liquid within the sprayer. In one aspect of the invention, the housing has front and rear sections with the rear section having a saddle portion and being hinged to the front section for pivotal movement from an open position for molding the housing to a closed position for operating the sprayer. In another aspect of the invention, the container has a rear portion which extends upwardly past the neck and defining a saddle recess, with the housing connected to the neck of the container and positioned forwardly of the upwardly extending container portion.

Abstract: A dispensing device for flowing substances, especially food substances, comprises a valve arrangement (2) for controlling flow of substance from a container (3) out through a discharge opening (4). The container (3) is of the type that decreases its volume at the same rate as with which the substance is discharged from the container in order to avoid that the substance in the container there gets in contact with air. Between the valve arrangement (2) and the container (3) a conduit (6)is extending, which is co-ordinated with a pump arrangement (7) arranged to transport the substance in the conduit without getting in direct contact with the substance.

Abstract: A liquid medicine container includes a container body having threaded neck with an opening formed thereon for the entry of a liquid medicine into the container body. A seal member is fit into the opening to seal it. A through hole is formed on the seal member to be in fluid communication with the interior of the container body. The neck has a circumferential flange formed thereon with two recesses formed on the flange. The neck also has a groove formed thereon and extending in a direction substantially normal to the threading of the neck from a point close the circumferential flange, crossing the neck threading, to a point close to the opening. A cap member has an open end with segmented threading formed therein to be engageable with the neck threading for tightening the cap member on the neck wherein the edge of the open end of the cap member is in contact engagement with the flange and two bosses formed on the edge of the open end of the cap member received within the recesses formed on the flange.

Abstract: A bellows dispenser has a plunger lock down feature in a non-use position such as shipping and storage. During plunger lock down a bearing member on the plunger seals the bellows about a container vent opening valve seat for avoiding any leakage in such non-use position.

Abstract: An apparatus for spraying a disabling liquid at an attacker comprising a dispenser for a quantity of a liquid capable of disabling an attacker, the dispenser being fabricated in an oval configuration with a hollow interior containing a liquid and with a discharge opening formed in one side thereof, the dispenser also including an aperture for the feeding of additional fluid thereto; a valve assembly located within the dispenser; a reservoir of additional fluid; and a tube coupling the reservoir with the dispenser for supplying additional fluid from the reservoir to the dispenser.

Abstract: A dispensing unit for a threaded neck bottle including a dispensing nipple, valve assembly, and a connector. The dispensing nipple is squeezable and mostly cylindrical in shape with one end converging. The bottom of the converging end is open so that the fluid contained within the dispensing nipple escapes when the nipple is squeezed. The valve arrangement is disposed inside the convergent end of the dispensing nipple and includes a rod connecting a ball valve at its bottom and a truncated cone shaped member at its other end. The connector secures the neck of the storage bottle to the dispensing nipple and includes outer and inner concentric cylinders secured to and made an integral part of an annular ring having an outside diameter and an inside diameter about the same diameter as the first and second concentric cylinders. The annular ring seals one end of the space between the cylinders.

Abstract: A collapsible pump chamber, e.g., a bellows, for use with a liquid dispensing pump device is provided. The collapsible pump chamber includes a collapsing side wall which defines an internal volumetric portion of the pump chamber. The collapsing side wall has a structure which collapses in a predetermined pattern as the pump device is actuated. For example, the predetermined pattern of collapse could result in an initially relatively small volumetric change in internal volume per given stroke length followed by an increased volumetric change in internal volume per given stroke length. Thus, the pump device would initially provide very good control over the amount of product is dispensed; giving precise control during a partial actuation. However, the same pump device would also be capable of delivering a large volume of product during a complete actuation.

Abstract: The head (1) for dispensing a product, comprises a nozzle piece (2) intended to be placed on a container (5) containing the product to be dispensed. This nozzle piece (2) includes a base (4) equipped with a sleeve (6) in which is fastened, by snap-fitting, a component (11) to which a pump (14) is linked. A seal (8) is provided between the nozzle piece (2) and the component (11) in order to interact when this component (11) has been snap-fitted on the sleeve (6) of the nozzle piece. The nozzle piece includes a retainer (R) capable of holding the above-mentioned component in a pre-snap-fitting position in which the seal (8) between component and nozzle piece do not yet interact. A passage (16) is provided between the outer surface of the component (11) and the inner surface of the sleeve (6) in which the component is engaged in the pre-snap-fitting position in order to maintain communication between the inside of the container (5) and the outside, in this pre-snap-fitting position.

Abstract: The dispensing assembly includes a container (8) holding the product, a dispensing head (20) having a dispensing channel (21), a flexible diaphragm (30) possessing a part in the form of a dome (32) which defines, in the dispensing head (20), a variable-volume compression chamber (50) in communication with the container (8); an inlet valve (133) is placed in this communication and allows the product to pass only from the container (1) to the compression chamber (50); the flexible diaphragm (30) is held against the dispensing head (20) by a fixing element consisting of a ring (40) possessing an opening (42) from which the compression dome (32) of the flexible diaphragm (30) emerges.

Abstract: An improved pump tip for a fluid dispenser system using a pump tube, such as common hand soap dispensers, the improvement being a longer pump tip with a longitudinally-extended exterior surface that works with a correspondingly shorter pump tube. The longer exterior surface enables the pump tip to be installed directly into the lower tube locator recess of existing dispensers in close fit and direct contact with the vertical structural wall of the recess, thereby providing a pump tube lower end termination with improved security, rigidity and lateral support of the tip and tube, greater security for the exposed pump tip nozzle, and enabling use of shorter pump tubes of larger diameter without need for a necked-down lower end.

Abstract: Apparatus for producing carbonation flavoured drinks has a number of features. Water introduced to a water break from the mains supply holds a value open whilst the carbonation chamber is being filled. A concentrate supply includes a metering chamber into which concentrate flows under gravity and from which concentrate is discharged by gas pressure. The concentrate containers include means to indicate the type of concentrate therein and the degree of carbonation of water is controlled by detecting this indication. Change-over from one gas supply bottle to another is achieved utilising the pressure of the gas in the bottle to displace an element which effects the change-over. Concentrate in supply containers thereof is cooled by coolant used from cooling the carbonation chamber.

Abstract: An automatic soap dispenser having an infrared sensing device and associated circuitry to trigger a driver device into operation. The dynamic power of the device is generated from a motor, through a speed reducing gear to deliver a low speed, high torque driving power to a toothed piece. The toothed piece is driven forward in a direction perpendicular to the soap feeding tube of the soap storage bag, allowing liquid soap in the feeding tube to be squeezed and dispensed for hands cleaning. When the squeezing operation is accomplished, the resiliency of the feeding tube pushes the toothed piece back to its original position and is ready for the next soap dispensing.

Abstract: Assembly for dispensing a liquid to pasty product, includes a container holding the product, and a dispensing head having a dispensing channel. The material of the container has a rigidity such that the dispensing of the product requires air-uptake by the container. A pumping member having an inlet valve and a dispensing valve is provided for dispensing the product. The pumping member is of the type having no air-uptake. The assembly includes elements for selectively establishing or preventing air-uptake by the container. The dispensing head possesses a bearing surface having a flexible diaphragm defining a springy leaf applied against the end of the bearing surface into which the dispensing channel emerges.

Abstract: A dispenser for a viscous substance includes a disposable plastic container for the substance and a pump permanently unreleasably mounted to the top of the container for pumping the substance from the container. The pump includes a housing communicating with the interior of the container and a pumping assembly including a movable housing wall and a tubular member connected to the wall and being movable along a motion axis between extended and retracted positions relative to the housing. An actuator is provided for the pump which includes a support member removably mounted to the cartridge, a target member movably mounted to the support member and linkage for releasably linking the target member to the tubular member so that when the target member is moved in one direction, the pumping assembly is moved to its extended position in the housing and when the target member is moved in another direction, the pumping assembly is moved to its retracted position in the housing.

Abstract: A collapsible pump chamber is provided which includes several functional elements of a pump device. For example, the collapsible pump chamber may be a bellows which includes a functional element of an outlet vane, a functional element of a biasing feature, and a functional element of a spin chamber. Consequently, a functional element of all of the downstream functions are incorporated into the bellows. This can significantly reduce costs; due to reduced tooling, and assembly, for example. Dunnage means is provided for occupying volume within the collapsible pump chamber to improve pump priming. The dunnage means may be free floating or associated with the inlet valve. A process for severing the functional element of the outlet valve, the functional element of the biasing feature, and the functional element of a spin chamber from the collapsible pump chamber during assembly.

Abstract: A dispenser for dispensing fluid material from a replaceable container received within the dispenser. The dispenser includes a cover attached to a base mounting plate for movement longitudinally and pivotally with respect thereto and into and out of covering relationship therewith and a latch carried by the base mounting plate and movable into and out of locking engagement with the cover in response to actuation of a lever easily accessible in the closed condition. The cover has a large sight window occupying a substantial portion of its surface and enabling a substantial portion of one face of the container to be viewed when the cover is closed. Material is dispensed by actuating a pressure bar and an adjustable stop is provided to selectively vary the range of movement of the pressure bar and the amount of material dispensed.

Abstract: Unit for dispensing a product of liquid or pasty consistency, including a receptacle for the product consistency, including a receptacle for the product equipped with a base intended to receive a dispensing device. The base and the dispensing device have complementary securing members which enable the base and the dispensing device to be connected and disconnected. The unit also includes a cap having securing members which are identical to the securing members of the base, so that the dispensing device and the cap can be connected to form a dispensing subunit.

Abstract: The present invention provides a manually operated dispensing system for dispensing a liquid product in atomized or foam form. More particularly, the present invention provides an improved manually operated pump to for use in such dispensing systems which incorporates at least one collapsible bellows as a pump chamber. The use of a bellows as the air chamber in an air/liquid pump mechanism allows the pressure/volume profile of the air supply to be tailored to supply the desired air/liquid ratio throughout the travel of the pump mechanism. The shape of the air bellows is preferably selected to provide an is initially large volume reduction in the air chamber as the bellows collapses to provide a rapid rise in air pressure available for dispensing. In a preferred embodiment, dual bellows are utilized (one for liquid, one for air) in a concentric arrangement to allow the pressure/volume profile for each to be tailored to achieve the desired spray or foam characteristics.

Abstract: Portioning arrangement for dispensing portions of liquid foodstuff (2) from a foodstuff container, where the portioning device exhibits a portioning housing which exhibits a holding part (7) and a portioning device (8) attachable to this in such a way that the holding part (7) and the portioning device (8) together form a portioning chamber (9) and where the portioning device (8) is arranged to allow foodstuff (2) to be drawn by suction out of the foodstuff container and into the portioning chamber (9) and dispensed from it, principally on to food such as a hamburger or the like. In order to be able to quickly and effectively clean this portioning arrangement (1) internally by dismantling only a small number of parts without tools, the portioning device (8) is designed as a bung-like part (24) which is intended to be inserted into a space (23) intended for the purpose in the holding part (7) so that the bung-like part (24) plugs with a seal and sits securely in said space (23).

Abstract: A dispensing device for flowing substances comprises a tube (19) of flexible material adapted to receive the substance in question from a conduit (13) and a valve arrangement (20) for regulating flow of substance from the tube out through a discharge opening (21). The valve arrangement has two or more valve parts (23), which are adapted to each other so as to in a first relative position shut the flow past the valve and in a second relative position open for flow therethrough. A cooling device (10) is arranged along at least a part of the conduit (13) for cooling the conduit and the substance located therein, so that particularly in the case of food substances a degradation thereof is avoided.

Abstract: A liquid soap dispenser for dispensing repeated doses of liquid soap from an associated cartridge with a compressible outlet nipple without collapsing the side walls of the cartridge, the cartridge includes a blow molded thin walled plastic container with an externally threaded neck for connection to the compressible nipple and a wall. A receptacle is positioned in the wall of the cartridge having an aperture therein, and a plastic filter is in the receptacle having a sealing mechanism connected thereto movable between a sealing position wherein the sealing mechanism seals the aperture and a filtering position wherein the sealing mechanism is away from the aperture and the filter is in contact with the aperture establishing an air path between the inside and outside of the cartridge. The filter having an average pore diameter of about 0.25 microns and is compressed within the receptacle such that upon repeated activation of said pump member the vacuum inside said cartridge does not exceed 12" of water.

Abstract: A condiment dispenser apparatus including a housing and a replaceable dispenser insertable into the housing. The dispenser includes a collapsible condiment bag and a pump apparatus attached to the bag for pumping condiment from the bag. The pump apparatus includes a pump actuating member that is supported for linear movement by a bracket on the housing. To move the pump actuating member to operate the pump apparatus a manually operable lever is supported for pivotal movement on a cover for the housing. When the cover is closed the lever is automatically brought into engagement with the pump actuating member so that depression of the lever operates the pump to dispense condiment. When the dispenser is empty it is discarded and replaced with a new dispenser.

Abstract: A dispenser for liquids having a rigid container (22, 52, 74) for storing the liquid at a first level and a reservoir (24, 54, 76) below said first level providing liquid communication with the container so that some liquid at a second level in the reservoir traps the liquid in the container due to the build up of a negative pressure in the container above the first level of liquid. An outlet passageway (41, 50, 78) has an inlet positioned normally in the liquid below the second level and extending upwardly from the inlet and terminating outside the dispenser. Displacement structure (28, 56, 94) is operably coupled to the reservoir for increasing the pressure in the reservoir to thereby dispense liquid through the outlet passageway.

Abstract: A low cost trigger sprayer has a housing with a first liquid passage containing a spinner assembly. A pump element is positioned generally horizontally such that pulling the trigger contracts or retracts the element and releasing the trigger permits the element to return to an extended position. An elastomeric spring is positioned between the housing and pump element to improve the return characteristics of the pump element. The sprayer includes a low cost spinner assembly and low cost valving to control the flow of liquid within the sprayer. In one aspect of the invention, the housing has front and rear sections with the rear section having a saddle portion and being hinged to the front section for pivotal movement from an open position for molding the housing to a closed position for operating the sprayer.

Abstract: A system for dispensing liquid soap including a closed wall structure defining a container with a partition separating the container into a separate lower liquid soap reservoir and a separate upper refill compartment. Dispensing mechanism is carried by the container for dispensing liquid soap from the reservoir. The partition has a refill aperture therethrough providing communication for soap flow between said reservoir and the refill compartment and dimensioned to permit the free flow of liquid soap therethrough. A refill cartridge of liquid soap has an outlet, removably enclosed within the refill compartment in a refill configuration with the outlet disposed for cooperation with the refill aperture to permit the free flow of liquid soap from the refill cartridge to the reservoir thereby to refill the reservoir as liquid soap is dispensed therefrom.

Abstract: An improved method and apparatus for discharging the contents of a test tube which has a resilient self-sealing, reusable stopper at one end. The apparatus includes a flexible member that has a constricted end and a second end. The constricted end defines an outlet area that has an opening. A support having an aperture is disposed proximate to the flexible member. The interior of the flexible member defines a cavity. The apparatus further includes a single fluid transfer tube having a longitudinal bore. The fluid transfer tube has a sharpened end for insertion into and through the seal of the test tube and an outlet end that extends into the aperture. The longitudinal bore establishes a fluid flow path from the sharpened end to the outlet end. When the fluid transfer tube is inserted into the seal of the test tube, the interior of the sealed test tube and the outlet area opening are in fluid communication.

Abstract: A dispenser device (10) for dispensing liquid detergent concentrate or cleaning agent into a washing zone of a washing appliance during a phase of a washing cycle. The washing appliance has a water pump (6) to provide the normal functions associated with washing cycles. Water pressure from the pump is utilised to squeeze or eject a predetermined quantity of concentrate from a container (28) into the washing zone at a desired phase of the washing process. In one adaptation, a container for the concentrate is in the form of a flexible bag (28) including an outlet nozzle (32) sealed until first placed in a receptacle (11) for use. In use, the nozzle (32) protrudes through an opening in a closure (12) of the receptacle into the washing zone. Via a second opening in the receptacle a small volume of water under pressure from the pump is directed under the timed control of a valve (26) at the required phase of the washing cycle into the closed receptacle.

Abstract: A low cost trigger sprayer has a housing with a first liquid passage containing a spinner assembly. An elastomeric pump element is positioned generally horizontally such that pulling the trigger retracts the element and releasing the trigger allows the element to extend. The sprayer includes a low cost spinner assembly and low cost valving to control the flow of liquid within the sprayer. In one aspect of the invention, the housing has front and rear sections with the rear section having a saddle portion and being hinged to the front section for pivotal movement from an open position for molding the housing to a closed position for operating the sprayer. In another aspect of the invention, the container has a rear portion which extends upwardly past the neck and defining a saddle recess, with the housing connected to the neck of the container and positioned forwardly of the upwardly extending container portion.

Abstract: A fluid substance dispenser including a container defining an elongate chamber to contain the fluid substance. The container is closed at one end by a movable piston and at its other end by a transverse fixed wall from which there extends, outwards from the chamber, an elongate appendix the free end of which is positioned to correspond with a hole provided in a deformable cap defining with the fixed wall a compression chamber. The edge of the cap is elastically urged to seal against said end when the cap is in its rest state, whereas it separates partly from it when the cap is pressed to dispense the fluid substance.

Abstract: A device is provided for controlled dispensing of a measured quantity of fluid from a flexible container, The device has a chamber adapted to hold a measured quantity of fluid when the container is inverted and righted. This fluid is then dispensed from the chamber through a conduit in direct response to a force exerted on the flexible wall of the container. One embodiment of the device is particularly suited to safeguard against contamination of the device. This embodiment features a dispensable nozzle ejectable by the user upon administration of the fluid, as well as a valve system to prevent airborne contaminants from entering the device and fluid reservoir. A further embodiment includes an inlet tube having a plurality of measuring notches communicating with a measuring chamber affixed to the side of the device. The inlet tube may be rotated to seal the chamber against spillage of the fluid. An additional embodiment features a floating housing floor slidingly mated within a housing.

Abstract: Dispenser for cosmetic or pharmaceutical products, including a container and a dispensing head attached to the container. The dispensing head includes a dispensing channel connecting the container to an external dispensing orifice. Part of the dispensing head, which defines the channel, is made of a synthetic polymer material and at least one of an antiseptic agent and an antioxidant agent.

Abstract: The Funnel-less Squeeze Cap is designed to control the flow of a liquid or semi solid substance. The angle of the hollow chamber of the cap inhibits or allows the flow of a substance depending upon the position of the container. When the container is rotated counter-clockwise, the substance flows; when the container is rotated clockwise, the substance stops; when the container is vertical, the substance is level and will not drip. Controlling the flow allows the container to be used without a funnel and the flow can be directed.

Abstract: A pouch for storing and dispensing liquid product in incremental amounts having a body portion and a pump tube portion, wherein the pouch can be held within a dispensing apparatus for squeezing the pump tube portion to release the incremental amounts. The improved pouch provides a pump tube portion made of thermoplastic polypropylene and butyl terpolymer rubber which can be readily sealed to the body without fitments or couplers. The improved pouch provides a built-in "duck bill" check valve assembly or alternatively an O-ring check valve assembly, which further reduces the number of parts required as compared to the prior art. The check valve assembly provides a socket connector for mounting a separate nozzle assembly to the check valve assembly. A break-off tab for initially opening the nozzle assembly for dispensing is provided.

Abstract: A dual chamber dispenser is formed of a first chamber and a second chamber connected together by a one-way valve with the first chamber holding a flowable first component to be mixed at a time of use with a second component in the second chamber. The one-way valve permits flow from the first chamber into the second chamber but prevents any backflow from the second chamber to the first chamber. A metered dose outlet chamber is connected to the second chamber by way of another one-way valve, so that the mixed components can be directed into the outlet chamber but prevented from backflow into the second chamber. A dispensing head is connected to the outlet chamber for collapsing the outlet chamber and dispensing selected amounts of the mixed components. With the components in the first and second chambers kept in a separated condition the dispenser has a long shelf life though the mixed components have only a relatively short period of use after the mixing has been effected.

Abstract: A portion measuring device of the type having a first, flexible, reservoir having an inlet, and a second, portion measuring, reservoir in fluid communication with said first reservoir. The first, flexible, reservoir is of a larger volume than that heretofore known, and may have a handle to aid in holding. The second, portion measuring, reservoir has a rotatable closure with a pouring spout or opening therein. A configured periphery is provided on the closure to aid in turning the same.

Abstract: A chamber that communicates with a viscous material reservoir has a flexible resilient diaphragm which forms an exterior wall thereof. An impact mechanism, which may comprise a solenoid actuated hammer, applies a predetermined momentum to the diaphragm for rapidly metering a predetermined minute blob of the viscous material from the chamber through a nozzle. The reservoir is pressurized with gas to force the viscous material into the chamber to refill the same. The chamber is heated to control the viscosity of the material. Dispensing rates in excess of four blobs per second can be achieved. Variations in the height of the nozzle from the surface of the workpiece are not critical to uniform rapid dispensing. An alternate embodiment eliminates the diaphragm and instead rapidly retracts a nozzle relative to a fluid feed conduit to eject very small blobs of viscous material. A strain gauge detects refill of the chamber inside the nozzle and sends a signal to control refill logic circuitry.

Abstract: A fluid dispenser is provided including a reservoir for a fluid material, at least one sealable chamber capable of receiving material from the reservoir, a closure valve device between the chamber and a fluid outlet from the dispenser and a pumping device for pressurizing any fluid material in the chamber, the chamber including at least one resilient wall portion arranged to be deformed by pressurizing of the fluid material.

Abstract: The dispensing pump for dispensing metered amounts of paste-like or liquid substances from paste containers (41) is provided with a bellows (3) acting as a pumping member, which bellows are sealing arranged between two coaxial housing parts (1, 2), which are made of a dimensionally stable plastic and are telescopingly movable relative to one another. Suction and discharge valves (4, 5), designed as one-way valves with axially movable valve closing members (19, 32), are arranged at its two ends. A suction pipe socket (29), which is concentric to the suction valve and is directed toward the paste container (41), is located at a suction-side radial wall (12) of one /f the housing parts (2).

Abstract: A trigger operated dispensing device for the discharge of fluids, particularly in a spray. The device comprises a housing including a trigger, which actuates a flexible pump. The flexible pump has an inlet accepting the fluid and an outlet end through which the fluid passes going to the discharge. The flexible pump, preferably of bellows type, is situated in line with and just adjacent to the discharge wherein rotational motion of the trigger results in rotational compression of the pump chamber. In a particularly preferred embodiment, the flexible pump further includes mechanical structure for imparting a radial momentum to the fluid prior to discharge.

Abstract: A spray or dispensing bottle is preferably blow molded from plastic material which is squeezable, with a sufficient plastic memory to cause the plastic to return to its original shape after it is squeezed and relaxed. The bottle includes an integral tube which extends from the bottom of the bottle, upwardly to the top of the bottle. Along the route of this tube, an aneurism or bladder is formed to receive and hold fluid which is sucked up the tube when the bladder is squeezed. Check valves are provided for opening and closing the fluid path from the bottle to the bladder and out of a nozzle. Thus, the bladder may be repeatedly pressed to create a vacuum, causing it to fill, or if squeezed when full, to spray the fluid out of the bottle. In one embodiment, a lever arm is positioned over the bladder in order to increase the mechanical advantage and relieve the stress which results if fingers must be used to squeeze the bladder.

Abstract: Methods and apparatus for delivering physiologically active compounds to a target human or animal employ a supercritical fluid solution comprising a supercritical fluid solvent and a physiologically active solute. The supercritical fluid solution is passed into a subcritical region to evaporate the solvent and form a gas-borne dispersion of solute particles. The gas-borne dispersion of solute particles is administered directly to the target human or animal. The apparatus for delivering the physiologically active compound are of the hand-held type.

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: One-way valve having a flap (4) formed by a partially elastic element comprising, on the one hand, a rigid part (5) fixed by a hooking means (6) to a container (1) containing a viscous product (2) and, on the other hand, an elastic part (8) bearing elastically against a sealing zone (9) integral with the container, the said valve having adjusting means (11, 12) for adjusting the bearing force of the said elastic part on the said sealing zone, the said adjusting means also forming the said hooking means.

Abstract: A dosing system for precisely mixing two liquids in a predetermined volumetric relationship includes a flow meter having a fluid inlet, a fluid outlet, and two intermeshed counter-rotating gears positioned between the inlet and outlet. When a first fluid is directed from the inlet to the outlet, the first fluid causes the gears to turn, and the gears turn a predetermined amount for each unit of first fluid directed through the f low meter. The rotor of a peristaltic pump is coupled to one of the gears of the flow meter, such that for each increment of rotation of the gear, the rotor turns to pump a predetermined amount of a second fluid through the peristaltic pump. The outlets of the two pumps are in fluid communication, to permit mixing of the predetermined amounts of first and second fluid.

Abstract: Dosing a flowable product is effected with an apparatus which has a rigid casing having a hollowed interior through which an elastic hose, which is connected to the casing, extends between casing inlet and outlet openings, and elastic rings are positioned to encircle the hose at positions adjacent each of the casing inlet and outlet openings, so that upon generation of sub- and then super-atmospheric pressure within the space between the hose and casing, the hose expands and contracts and the rings open and close the hose for product flow introduction into and ejection from the hose for dosing the product.

Abstract: An actuator for a dispensing pump is disclosed that pressurizes air and releases the air into an internal fluid passage to mix with, and aerate, fluid dispensed from the dispensing pump and expels residual fluid. The actuator has a body portion, an actuating portion biased away from the body portion, and an air chamber formed between the two portions. Force applied to the actuating portion is transmitted to, and serves to operate, the dispensing pump and compresses the actuating portion toward the body portion, pressurizing the air in the air chamber. The pressurized air is selectively released into the fluid passage. Disclosed embodiments employ a dome-shaped resilient membrane and a piston as the actuating portion.