Abstract: A personal protection device is disclosed which utilizes a pressurized canister of non-lethal gas. The device comprises a barrel for holding the canister, a trigger, and a handle for holding and aiming the device. The handgun shape of the device results in strong tactile cues for quickly and accurately discharging the device. In the preferred embodiment, the barrel pivots for quickly loading and unloading. A compartment is provided in the handle for storing a spare cartridge. A safety is disclosed to prevent inadvertent discharge of the device.

Abstract: The fluid container with reseatable stopper includes a plunger which has mounted at one end thereof a head which seats between a pair of ribs provided in the neck of the container to create a fluid tight seal therein. The plunger is actuated by a lever set in a cavity in a bottom surface of the container, the lever moving the plunger head into and out of engagement with the ribs. A small open area is created about the circumference of the plunger head which allows fluid to flow therearound in a controlled manner when the head is not seated between the ribs.

Abstract: A device is provided for controlled dispensing of a variable measured quantity of fluid from a container. The device has a dosage cup 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 valved conduit.

Abstract: A plug device for a liquid container is presented to enable cleaning of a flow passage of the liquid container as well as to eliminate the liquid being left in the flow passage during the operation of the liquid container, thus providing hygienic and safe operation of the container. The plug device consists of an outer plug member and an inner plug member which is detachably attached to the outer plug member. When the members are assembled, a flow passage is formed automatically to enable access to the liquid stored in the container. When a press button provided on the inner plug member is pressed down, the opening disposed at the bottom of a plunger device remains open, resulting in the interior space of the container being connected with the flow passage via the internal liquid passage. In this condition, the container can be tilted to dispense the liquid from the container.

Abstract: A housing for mounting on a water dispenser which includes a compartment to extend over water dispensing spigots on the dispenser. The compartment has an aperture in its top in which presser bars are positioned. The presser bars are pivotally supported by the housing and overlie the spigots to actuate them in a manner to reduce wear on and corresponding leakage of their valves. The presser bars have large areas of contact to enable them to be depressed by persons of reduced finger strength by forming a leverage system which reduces the actuating force necessary to operate the spigots.

Abstract: A hollow body has a connected tubular discharge stem. The stem has a tapered tip formed with at least one discharge passage. An annular gasket complementing the shape of the taper is normally seated on the tip and valves off the passage. A hollow tubular shell is over the stem and carries the gasket at its upper end. The shell encloses a spring working between the bottom of the shell and a fin on the stem spaced back from the tip. In operation, the shell is moved away from the body so liquid can discharge through the gasket.

Abstract: The present invention involves a water gun having at least one pressurizable air/water storage tank, a pressurizing mechanism, a channel of release for shooting water and a release mechanism. The improvement lies in the particular release mechanism of the water gun. This release mechanism is for controlled flow with bursting release of water. It includes a plug valve which is located within a channel of release. The release mechanism has a first spring connected to the plug valve which biases the plug valve to its first, closed position. This first spring and the internal water pressure against the plug valve constitutes the "first force." Linkage connects a trigger to the plug valve such that activation of the trigger provides a second force which moves the linkage so as to move the plug valve from the first, closed position to the second, opened position and release of the trigger permits the first force to bias the plug valve back to its first, closed position.

Abstract: A dispensing tap for flexible bulk beverage containers comprising a body having an inlet and an outlet, the axes of which are transverse, a piercer unit carried within the body adjacent the inlet by a shaft and an outlet sealing means comprising a valve element carried on a valve stem, the valve stem and the shaft being operatively connected such that axial movement of the latter towards the inlet causes the valve stem to move transversely to open the outlet.

Abstract: A pressurized inverted dispenser utilizes a hollow vertically elongated body having a lower end with an aperture, an upper end, a flat vertical cover and a front curved wall with a button receiving opening. The front wall, the cover, the upper end and the lower end are sealed together. The inside surface of the cover carries a connector support. A button is disposed in the opening which is slidably movable toward and away from the rear wall between depressed and extended positions. A horizontally elongated connector secured to the rear surface of the button and slidably engages the connector support. The button slidably supports a horizontal leg of a spring which also has a vertical end leg aligned with the aperture, and a U shaped central section disposed between and secured to the first and second legs.

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: A fluid dispenser is provided with a carrier having a deformable container capable of being filled with a fluid material to be dispensed, the container being sealed by a closure valve device, with resilient device acting upon the container to place its contents under pressure, and a control device being provided for opening of the closure valve device to permit contents of the container to be ejected by pressure from the resilient device.

Abstract: A device for the loading of bottled fluid with no spillage consists of a valve body and a base plate coupled to the valve body in a vertically slidable manner. The valve body consists of a body, an integrated cap handle, a bottle seal and a pair of hinge brackets. The base plate consists of a body, a set of bottle stabilization posts and a pair of hinge brackets which, being coupled to the valve body through a pair of clamp levers, converts the sliding movements between the base plate and the valve body into rotations of the clamp levers to permit or prohibit the flow of fluid from the bottle regardless of its orientation while simultaneously unlocking or locking the device onto the bottle.

Abstract: A carbonated beverage dispensing device for suppressing the loss of carbonation from a beverage container which normally occurs during the repeated opening and closing of a container. The dispensing device provides for a convenient, efficient and sanitary way to dispense carbonated beverages especially from large containers. By placement of a spring-type valve mechanism in a downward spout of the dispenser the problems associated with liquid pooling and bacteria retention from prior art dispensers are eliminated. The present invention allows for dispensing without lifting or removal of the container allowing for ease of use through a unique siphoning, sealing technique and valve actuating assembly.

Abstract: A system for dispensing liquid food products is disclosed. The product is drawn from a source to a metering chamber through a supply valve, and then conducted to a dispensing valve to fill performed containers. The valves have a valve stem that reciprocates to open and close the valve. The valve stem is supported in the passage through which the product flows by bearings. The bearings have balls that engage the stem and the wall of the passage. The use of balls to support the stem facilitates cleaning of the passage after use, and yet provides good support for the valve stem.

Abstract: A dispenser device for products contained in a container under pressure, and having, a dispenser body, a handle connected to the dispenser body, an axial recess extending along the body, and having a forward end and a rearward end, a container support formed on the body, and an opening extending from the container support to the axial recess, a dispenser nozzle extending forwardly from the forward end of the body, and having a dispenser opening and an interior valve seat and a dispensing conduit extending axially, a valve member moveable into an out of engagement with the valve seat, a valve operating rod extending along the axial conduit, and through the recess in the body, the material being able to flow along the axial recess and the axial conduit around the operating rod, and a rear opening at the rearward end of the body with and a seal, an extension of the valve operating rod extending rearwardly through the rear opening, a handle opening in the handle, a connection extending from the rearward extension

Abstract: The dosage dispensing device associable with filling machines is provided with at least one lower nozzle which includes a main body, which has a vertical axis, which is hollow and which has an internal diameter which reduces gradually at least proximate to its lower end down to a discharge outlet, and by a stem, which is arranged so as to be coaxially movable inside the main body. The stem defines, at its lower end, a shutter for the discharge outlet, and is provided with longitudinal fins for guiding the stem inside the main body; the shutter is constituted by a solid of revolution which is coaxial to the stem and which has a cross-section which decreases from a median region thereof down to a lower pointed end thereof, and the inner surface of the main body which is proximate to the discharge outlet has a shape which can be sealingly coupled to a lower portion of the shutter.

Abstract: A dispenser for pin-sealed containers of cyanoacrylate glue and similar fluids includes a pin which engages an outlet aperture in a neck of the container. The pin is supported by other components of the dispenser to allow the user to extract the pin from the outlet aperture a sufficient amount to allow fluid flow without the user coming into contact with the fluid during the extraction of the pin.

Abstract: The present invention relates to an improved toothpaste dispensing apparatus which includes a housing having a grasping assembly for holding the toothpaste container, a guide and brace assembly for supporting the toothpaste container and a nozzle assembly including a capping mechanism for dispensing the toothpaste. A drive assembly is mounted within the housing and drives a carriage assembly for squeezing the toothpaste container. A control system is also included for activating the drive assembly and for automatic reversal of the drive assembly.

Abstract: A dispenser apparatus includes a central housing, with the central housing mounting a supply container upper end thereof, wherein the supply container is arranged in varied orientation coaxially aligned with a delivery tube directed below the central housing. A trigger housing mounted to the central housing effects reciprocation of a control rod, with the control rod mounting a door plate within the central housing to permit communication between the container and the delivery tube. A modification of the invention includes end cap structure mounted to a lower distal end of the delivery tube to include a first cap formed with an apertured floor, and a second cap including a grinding mechanism to effect pulverizing of granular material for greater and more rapid absorption of pesticide components within a dispensed area.

Abstract: A dispensing valve includes a body defining a passage with a first opening and a second opening. The body further has an outer surface with a lock surface and an open surface. A pluger is slidably disposed within the passage for movement between a first position wherein a fluid tight seal is formed between the plunger and the body for preventing fluid flow between the first opening and the second opening, and a second position wherein fluid flow is permitted between the first opening and the second opening. An arm extends from the plunger and includes a projection slidably engageable with the outer surface of the body. The arm includes biasing structure for biasing the projection against the outer surface of the body. The projection is engageable with the lock surface when the plunger is in the first position for maintaining the plunger in the first position.

Abstract: A device for dispensing a quantity of granular fertilizer to an underground location. The device consists of an inner and outer tubular section with the inner tube being hollow. Both tubular sections have a lower pointed end and the inner tube is rotatably disposed within the outer tube. An inner opening and outer opening are located at the lower end of the inner and outer tubes. A funnel is provided on the inner tube as well as a handle which actuates the rotation of the inner tube. Another handle is provided on the outer tube. When the handles are in alignment the openings are not in alignment. This forms a solid outer tube. The inner tubular section is filled with fertilizer, the handles grasped firmly and the device is thrust into the ground. The inner handle is then rotated 90 degrees bringing the inner and outer openings into alignment. The device is then removed from the ground, leaving the fertilizer in the hole formed by the displaced soil.

Abstract: A hand-held, manually-actuated dispenser for selective discharge of a stored fluid includes a discharge outlet defined in an elongated housing and a reciprocatable elongated member normally maintained in a first position closing the discharge opening for preventing a release of contained fluid. Also defined in the housing is a first chamber for containing fluid for discharge from the discharge opening, a second chamber or reservoir for storing a supply of the contained fluid, and a passage between the first and second chambers for enabling contained fluid flow therebetween. The elongated member is movable in a first direction from the first to a second position in which the discharge opening is opened for enabling a release of contained fluid from the first chamber and in a second direction from the second to the first position to refill the first chamber from the second and thereby complete a two-stroke fluid-discharging operation of the dispenser.

Abstract: A valve for a fluid pressurized dispensing container that is useful for the low pressure dispensing of medium and low viscosity fluids at controlled rates and is actuated by merely inverting the container and in which the flow of the dispensed liquid begins practically instantly as soon as the container is inverted.

Abstract: A device for supplying a liquid developer from a toner container to a tank and from the tank to a developing unit of which is operable with the liquid developer. The nozzle hole of the toner container is open into a circulation path along which the liquid developer is circulated. Hence, the nozzle hole is constantly dipped in the liquid developer without regard to the liquid level in the tank and, therefore, is free from the deposition of dried toner particles.

Abstract: An apparatus for feeding granular silicon material comprises a hopper for storing granular silicon material, a feeder for feeding granular silicon material stored in the hopper, a first guide tube for leading granular silicon material fed from the feeder, a feed tube for feeding granular silicon material, which is arranged in a lower portion of the first guide tube and movable upward and downward, a housing incorporating the hopper, the feeder, the guide tube and the feed tube, a sluice valve for closing an opening of a chamber of the apparatus for manufacturing silicon single crystals, and a second guide tube which is positioned in a portion of the opening of the chamber and which leads granular silicon material to a crucible for melting granular silicon material.

Abstract: A cap device to be mounted to a mouthpiece of a container, in one aspect, comprises a cap member provided with an inner hollow portion and a film member accommodated in the inner hollow portion. The film member has a laminated structure composed of at least one metal including layer and a fusing layer abutting against an open end face of the mouthpiece mounted to the container. The cap device mounted to the mouthpiece is sealed by heating the film member by the high frequency induction heating treatment to fuse the fusing layer at the open end face of the mouthpiece. After the sealing, the cap device is removed and a connector means is connected to the mouthpiece and a pressure is applied to break the film member to establish the communication between an interior of the container and a connection line.

Abstract: A liquid heating appliance having a dispensing valve which is supported by a liquid reservoir and which includes an axially compressible conduit connected at its upper end to the reservoir and supporting at its lower end a nozzle, the nozzle supporting a valve member which is unseated by compressing the conduit.

Abstract: The cap is provided with a distributing mouth piece comprising a movable distributing part with lateral opening having to be pressed in order that a liquid or a cream is distributed by operating a pump or a valve. The cap comprises operating means of the mouth piece which is axially pressed under effect of a lateral push exerted on the operating means. A cover delimits apertures or notches for wings or for at least one half-shell handling said operating means guided by the cover connected to the flask by fixation means.

Abstract: A metering valve for water faucet that is triggered at the water discharge by a light touch on the trip stem so that the hand that triggers the valve is ready at the washing position at the start of the water flow. The disclosed metering valve consists of a trip stem which penetrates through the valve outlet port to the exterior of the valve. There is a pressure chamber wherein the pressure controls the open and closure of the valve. The pressure in the pressure chamber is determined by means of feed and bleed. In the closure mode the bleed opening is blocked and the pressure chamber is pressurized by the water supply through the feed. A light touch on the trip stem causes the bleed to open and a depressurization in the pressure chamber. This opens the valve and starts a metering cycle. After the trip stem is release, the bleed is blocked again and the pressure chamber starts to recover its pressure slowly through the feed flow path.

Abstract: A spill-proof drinking mug for drinking using either left or right hands of the user in which a base part serving as a container for the liquid is provided with a shape designed to fit within conventional cup holders of vans and RV's as well as cup-holding attachment for automobiles, and which has a threaded top opening. A screw-on cap with a handle sealingly mates with the top opening of the vessel, and has a pair of drinking openings at opposite sides of the handle. One opening is used for drinking and the other serves as a vent. A spring-loaded valve is mounted on the cap and is operable by the thumb of the hand holding the handle to simultaneously displace the valve out of both openings.

Abstract: A mechanical actuator for liquid dispensing taps which provides a mechanical advantage by means of a combination of levers, linkages, and sets of floating and fixed hinges. In a preferred embodiment the actuator improves the ergonomics of using the dispensing tap by providing a more natural hand position and better visibility of the product flow from liquid dispensing taps typically used on large volume liquid containers such as bag-in-box packages.

Abstract: A fill tube has a hollow interior with a product inlet orifice, a product discharge orifice and a fill rod orifice connected to the interior. A plunger rod having ends is mounted through the fill rod orifice such that its first end is located within the hollow interior of the tube adjacent the product discharge orifice. The plunger rod has a valve member on this end that is tear drop in shape and is sized to fit into and seal against the inside of the discharge orifice. A plurality of fill tubes and plungers can be mounted on a packaging machine in conjunction with a prime mover and a moving member that is operated by the prime mover. Each of the plungers are connected to the moving member so as to be moved within their fill tubes in conjunction with movement of the moving member imparted thereto by the prime mover.

Abstract: An attack-repellent device includes a housing which can be carried like a wristwatch on the arm of the user, or attachable to a waling cane, or the user's belt or neck chain. The housing includes one or more nozzles which ejects an attack-repellent chemical under the force of a propellent fluid preferably stored in one or more canisters within the housing. The inner end of each nozzle forms a projection insertable into the discharge orifice in a canister which contains a one-way valve which normally closes the discharge orifice. A spring is provided for urging one or both of the nozzle and canister toward the other. Latching means is provided for normally separating each canister from the associated nozzle. A user-operable member is provided which could be a wall of the housing which normally covers over an entry recess through which the canister or canisters are placed within the housing.

Abstract: Valve for a fluid dispensing container. The valve comprises a hollow valve body having a nozzle extending axially in one direction therefrom. At the discharge end of the nozzle is a valve seat in the shape of a frustum with the largest diameter of the frustum being at the tip end of the nozzle, and a normally closed axially moveable valve member that seats on the valve seat so as to prevent discharge of fluid. The valve also includes an axially moveable valve stem connected to the valve member, and a moveable actuating ring encircling the valve body and connected to the valve stem so that movement of the actuating ring causes axial movement of the valve stem and valve member to open the valve.

Abstract: A bulk material container with an opening has a door arranged to move over a rectilinear path for the opening and the closing of the opening. For moving the door over a rectilinear path to either open or close the opening, a threaded shaft is journalled for rotation within the container and is aligned axially with the center of the door. Means on the threaded shaft engage the door so that the door is moved over the rectilinear path by the rotation of the threaded shaft. A gasket surrounds the opening at the time of closure by the door. Continued rotation of the shaft for the closure of the door will cause the gasket to be compressed against the plate surrounding the opening. Rotation of the door is inhibited while the gasket is being compressed.

Abstract: A patterned gluing apparatus and method. The apparatus comprises a rotatable shaft supporting a plurality of glue nozzles arrangeable in different configurations about its periphery. The shaft has a hollow portion and holes communicating with the glue nozzles so that glue may be fed to the nozzles. The shaft is supported above an article conveyor so that the glue nozzles contact articles under the shaft as they are rotated past. The glue nozzles have depressable ball bearings closing off their tips so that they dispense glue on contact with an article. A controller monitors the position of the articles on the conveyor and controls rotation of the shaft so that lines and dots of glue are dispensed to programmed locations on the articles.

Abstract: A cap having a body which may be insertably mounted into the open top of a container and form a fluid-tight seal therewith an interior cavity, and a valve aperture positioned to fluidly communicate with the interior cavity and the receptacle portion of the container when the cap is mounted thereon. A valve member slidably carried on a valve post is disposed across the valve aperture, thereby normally sealing the valve aperture. The valve post may be moved to selectively open the valve aperture by depressing a thumb pad, and will automatically return to the closed position when the thumb pad is not being pressed due to the action of a spring. One or more enclosed spouts are molded integrally with the cap body, and fluidly communicate with the interior cavity. These spouts may be positioned at the sides, rather than the front, of the containers.

Abstract: In a plug-and-socket coupling, particularly between a spout of a portable liquid gas container and a regulator mounted thereon, in which the first coupling part has a discharge outlet adapted to receive a stud or protrusion of the second coupling part, leakage to the surroundings from a pressure fluid passage through the coupling is impeded by an annular gasket movably disposed within an annular chamber between the stud and a surrounding skirt. Between the gasket and the stud there is a passge for pressure fluid to the annular chamber behind the gasket for loading the gasket to closely but against the internal surface of the skirt and a surface on the first coupling part.

Abstract: Dispensing cap for pressurized containers having a slotted housing adapted to fit onto the bead formed between the valve closure and the top of a pressurized container, an actuator disposed within the slotted housing and hinged thereto, the actuator defining a product discharge path and adapted to sealingly communicate with the valved closure of the container, and a trigger member affixed to the actuator and hinged to the housing, the hinged actuator and trigger providing a single or multiple-actuator lever structure, respectively, for the delivery of product from the valved container.

Abstract: A dispensing valve unit for a gasified beverage, which unit (1) is adapted to be operatively connected both to a container (2) of gasified beverage and to a container (3) of gas for topping up the said beverage container with gas, and is so arranged as, when operated, both to dispense the beverage by gravity flow and to cause topping up gas from the gas container, regulated to substantially the same pressure as exists in the beverage container, to be supplied to the beverage container to replace the beverage dispensed therefrom.

Abstract: A dispensing head for container having an outlet nozzle includes a coupling member for fitting on the nozzle and is provided with a central conduit, a chamber for an additive product surrounding the central conduit with the chamber having at its base an annular opening to the central conduit; a tube is slidably disposed in the central conduit and has at one end adjacent the coupling member openings so that when the head is mounted on the nozzle the tube will be moved from a storage position, where the opening of the chamber to the central conduit is closed, to another position where the openings of the tube establish communication between the chamber's opening and the central conduit; the end of the chamber remote from the nozzle has a plurality of openings to permit dispensing of the additive with the main product.

Abstract: The valve has a residual pressure valve (14) which is known per se, in which however the gas container can be filled through the residual pressure valve. The residual pressure valve (14) is mounted on a stem (32) which is axially displaceable as a result of a cam configuration in such a manner that it assumes a stable operating position under the influence of its spring (24) and an unstable open position under manual action on a filling apparatus (52) counter to the influence of its spring (24).

Abstract: In a beverage dispensing unit which includes a storing unit (32), a conducting arrangement (43) for conducting a beverage from the storing unit, and a cabinet (38), the storing unit comprises a portable tank which is removable from the cabinet. The conducting arrangement includes an end portion (47) which is detachably connected to the tank. The end portion is held to the cabinet to be radially movable in relation to a connecting axis defined by the cabinet. Preferably, the cabinet comprises guiding arrangement (41, 42) for guiding the tank substantially along the connecting axis. The beverage dispensing unit further comprises a controlling unit (60) for controlling dispensation of the beverage. For adjusting a flow rate of the beverage in a beverage path (62, 63, 64) which is opened and closed by a valve (75), the controlling unit comprises an adjusting member (82) having an end (82b) covered with an operating member (90) which operates the valve.

Abstract: A container closure having a spigot valve and comprising a lid for the container which lid has a hole therein and a spigot valve carried by the lid in association with the hole, therebeing a shiftable sealing assembly as part of the spigot valve for opening and closing the hole, the assembly being shifted by a resilient member which is shiftable from a first position closing the hole to a second position opening the hole, therebeing a lever for shifting the resilient member between respective positions and detents for retaining the lever to hold the resilient member in the second position whereby a valve stem which depends from the resilient member and extends through the hole is retained in the open section position to permit egress of the contents of the container whether the container is in a vertical, slightly tipped condition, or in a horizonal position.

Abstract: A dispensing system for bottled water, having a vented fluid dispenser assembly secured to the neck of a bottle which is inverted and supported by a bracket. The vent tube extends inward through the fluid to near the bottle bottom and ends with a check valve. A concentric valve member located within a flow tube seals against a valve seat and is manipulated by the reciprocating motion of a sleeve which surrounds the flow tube. The valve member is shaped with varying diameters, to regulate flow rate as a function of its elevation relative to the valve seat. The outer end of the valve member is releasably fastened to the sleeve center.

Abstract: A child resistant disposable lighter is disclosed. The design utilizes a safety mechanism which is designed to be difficult for small children to operate and which may be inexpensively and efficiently incorporated into existing disposable lighter designs. The design is presented in several embodiments which have improved effectiveness by operating with regard to anatomical differences rather than solely increasing the strength required to operate such a lighter. Embodiments include mechanisms which utilize a release means that is separated from the conventional lighting means by a sufficient distance to make it difficult for small children to operate. By also focusing on commercial realities, the invention is designed to be easily implemented on a cost efficient basis by existing manufacturers through only a minor modification of existing molds and assembly techniques.

Abstract: A valve especially adapted for dispensing problematic beverages such as pressurized slurries of frozen or semi-frozen material comprising a valve body, an end cap, an inlet, a valve bore with an outlet, and a valve seat having a specially designed passageway that directs fluid flow toward the walls of the valve bore rather than axially toward the valve outlet.

Abstract: A beverage dispensing system is provided which utilizes a modified refrigerator/freezer unit, and a tower mounted on top of the refrigerator. Fluid lines run from pressurized bottles inside the refrigerator to dispensing valves mounted on the tower. Artificial ice extends from the freezer unit into the tower. The dispensing system utilizes the refrigerator section of the refrigerator/freezer to chill the beverage lines and reservoirs contained within the refrigerator, and the freezer section to chill the beverage lines extending into the tower.

Abstract: A dispenser for the delivery of dosed quantities of a pasty substance comprises a receptacle having a push button mounted on the receptacle for movement upwardly and downwardly adjacent an end thereof. A rod extends through the receptacle and is connected at its inner end to a follower plunger. A substance flow tube has one end extending into the receptacle to the reservoir thereof for the pasty substance and an opposite end with a substance delivery orifice which extends out of the receptacle. A closing wall adjacent the tube closes the delivery orifice. The follower plunger is in sliding engagement with interior of the receptacle and it is movably engageable around the rod and is movable along the rod upon discharge of a substance through the delivery orifice. There is a connection between the plunger and at least one of the closing wall and the substance flow tube for shifting one end of the closing wall relative to the flow tube opening the delivery orifice for the delivery of the substance therethrough.

Abstract: A valve structure formed from a single tubular plastic component having two integral tube sections. A first section includes a flow orifice. The second section constitutes the valve element for controlling flow through the orifice by being inverted relative to the first section to overlie the orifice in sealing relationship thereto. In the preferred embodiments of the specification, the second section is invaginated into a compressed position within the first section.