Abstract: The device for mixing and dispensing multi-component compositions is distinguished in that a cap (10) acting as a closure initially closes the outlet openings (5) of the components and can be moved into the open position by pressure of the components while they are being discharged, so that the components can be mixed by the mixing helix (13) and emerge from the outlet tube (12).

Abstract: Persons often encounter the need to apply some form of skin treatment when on the go. Such treatments include disinfectant, sunscreens, medications, and moisturizing lotions. The present invention comprises convenient portable skin treatment dispensers in the form of neck-worn and disposable wrist-worn devices. The devices are convenient to use, unobtrusive and can even be disposable. Ease of manufacture is facilitated in various embodiments which include self-sealing diaphragm valves.

Abstract: A fitment assembly for a peristaltic pump dispenser. The fitment assembly includes a flexible fitment having an upper end with a radically extending lip, a lower end spaced from the upper end, at least a portion of which is conical, and a flexible portion therebetween forming a hollow chamber. A check valve is received in the conical portion of the lower end and includes a lower base, on upper cylindrical wall spaced from the lower base, and a plurality of legs extending between the lower base and the upper wall wherein pressure on the flexible portion of the fitment will force fluid in the hollow chamber between said lower base and said upper wall of said check valve and out of the lower end of the fitment.

Abstract: A fluid-storing portion 4 includes an external container (110), an internal container (120), and a coupling material (140) which forms an internal space (130) shielded from the outside between the internal container (120) and the external container (110). When the volume of the internal container (120) is decreased, the internal space (130) is depressurized and receives force in a direction toward the internal space (130) from outside. Consequently, air flows into the internal space (130) from the outside by the action of a runoff prevention mechanism (144 and 147) of the coupling material (140).

Abstract: The first and second check valve mechanisms, which are applicable to a small-size double-layered container, are created while maintaining high productivity. The discharge container provided with these check valve mechanisms comprises an outer container, which has the flexibility to make this outer container squeezable and recoverable to its original shape and which is provided with a cylindrical outer neck on top thereof. This discharge container also comprises an inner container, which is deformable with the decrease in the content and is disposed inside the outer container under the condition that cylindrical inner neck has been directly engaged with, and tightly fitted to, the outer neck. The first check valve mechanism is engaged with, and tightly fitted to, the inside of the inner neck and is used to open or close the opening of the inner neck while preventing outside air from creeping in the inner container.

Abstract: A fluid dispenser device comprising a pump (50) and a dispensing head that comprises a body (1) defining a fluid discharge channel (2) ending in a dispensing orifice (3), a rigid insert (4) being disposed in said discharge channel (2), said rigid insert forming or being secured to the outlet valve of said pump, said fluid dispenser device being characterized in that said dispensing head further comprises a closure element (10) disposed in said discharge channel (2), said closure element (10) being mounted to move and/or to deform between a closure position in which it closes off the discharge channel (2) and a non-closure position in which it does not close off the discharge channel (2), said rigid insert (4) being mounted to move inside said discharge channel (2) between a rest position and an actuating position, said closure element (10) co-operating at one end with said rigid insert (4) and at the other end with said body (1) so that, when the insert (4) is in the rest position, the closure element (10) is

Abstract: A rupturable closure for use with a flexible container that is especially suited for pouring viscous fluids such as motor oil. The closure is secured to the pouring spout or other dispensing opening of the container and retains the viscous fluid in the container as the container is brought into inverted position for pouring. Notwithstanding the ability of the closure to hold in the viscous fluid, the closure also allows the closure to breathe when the cap is removed so as to relieve small variations in pressure as the flexible container is first grasped for pouring and thereby prevent premature rupture of the closure before or as the container is inverted for pouring. Such a closure includes a membrane secured over the dispensing opening of the container. The membrane has a small primary vent orifice in the region over the dispensing opening that is sized to permit the membrane to breathe.

Abstract: A container for a consumer product suitable for mounting on a wall, the container comprising: a stretch release adhesive structure located at least partially on the one or more side surfaces; and an outer label substantially covering the stretch release adhesive structure. In a preferred embodiment of the invention the container includes an inner label, in order to provide additional instructions, following removal of the outer label and/or to provide a mechanism by which to effect easy removal of the container from the wall.

Abstract: In a liquid container, the dimension of inside diameter of a liquid supply portion is not subject to any restriction, and also a liquid leakage suppressing mechanism that is not subject to any restriction by the viscosity of stored liquid is provided. A liquid container includes a body having a tank for storing a liquid; a supply mechanism which is connected to the tip end portion of the body and has a brush for supplying the liquid; and a drive mechanism for pushing out the liquid L in the tank T to the supply mechanism. A valve which is normally closed and can be opened only when the drive mechanism is operated is provided between the tank and the supply mechanism.

Abstract: This device comprises a diaphragm valve consisting of a part forming the valve seat, in which a duct for the flow of the product contained in the container is formed, and of a diaphragm made of elastically deformable material closely fitted onto this part. According to the invention: the part has a conical or cylindro-conical overall shape and has a cross section which increases toward the orifice via which the product flows out of the valve; the diaphragm has a conical or cylindro-conical overall shape corresponding to that of the part, this shape being such that this diaphragm can be fitted closely onto or into this seat-forming part, and the diaphragm and the container comprise bearing part so as to hold the diaphragm in its position of close fitting onto or into the part.

Abstract: A composition useful for the production of foam plastics from disposable pressurized containers is provided. The composition comprises at least one polyisocyanate or isocyanate prepolymer, at least one catalyst for the reaction of the isocyanate group with the OH group, at least one blowing agent and at least one foam stabilizer. One day at the latest after application from said disposable pressurized container, the residue of said composition left in the pressurized container has a diisocyanate monomer content of less than 5.0% by weight, based on the residual contents of the emptied container.

Abstract: The container of the present invention stores viscous substances in a sealed environment and is easily transportable. The contents of the container can be easily extracted completely without any tools or contact with the user. The container is an elongated housing with one or more opening near its ends and with one or more piston with approximately the same profile and dimension as the cross sectional profile of the interior of the elongated housing enclosed in the container that will slide along the length of the elongated housing when urged and extract the contents of the container completely.

Abstract: The invention relates to a self-closing valve for the dispensing of flowable media from a container comprising a curved membrane, a support segment, a connecting wall as well as a slitting provided in said membrane.

Abstract: A spray head (1) for spraying fluid through a spray orifice (7), the head being provided with an expulsion channel (5), and with a closure member disposed in fixed manner in the expulsion channel (5), upstream from the spray orifice (7), the closure member comprising a closure element (9) which, at rest, closes off the spray orifice (7), and an elastically-deformable portion (10) supporting the closure element (9) for opening the spray orifice (7), the spray head (1) further being provided with a spray profile, the spray head being characterized in that the spray profile is formed on the closure member.

Abstract: Extension for bottle dispenser, in particular for food product, having a stopper part (10) to be applied on the mouth of the bottle and provided with a spout (11) curved downwards, comprising in a single piece: a conduit portion (20) in continuation of the cavity of the spout (11) into which can be inserted with interference a vertical tubular cavity portion (21) into which converges the conduit portion (20), comprising an inner core (22) and coaxial outer cylindrical wall (23); a cladding portion (28) in continuation of the vertical tubular cavity portion (21) and brace (29) that surrounds the stopper part (10) of the dispenser; and a distinct elastomeric valve (3) to close the vertical tubular cavity portion (21)

Abstract: The invention relates to a device for dosing flowable, preferably thick media, without the use of a pump. The device can preferably be interchanged on the cover or can be fixed as a cover of a common withdrawing device for paper towels, woven fabrics or other fabrics, cotton balls and the like. The inventive device comprises a dispensing container which is either constructed as a cover itself or comprises means for fastening on such a cover. In addition, said container releases a desired quantity of medium located therein when pressure is exerted on a predetermined partial area. The invention is preferably used in the areas of personal hygiene, household cleaning and industry in order to clean, polish and/or lubricate.

Abstract: A prepolymer composition for producing polyurethane insulating foams from pressure tanks which consists of a prepolymer component with at least one PU prepolymer with a content of NCO groups of 4 to 20 wt % and usual additives, as well as a propellant component, wherein a polyisocyanate with a content of less than 2 wt %, based on the prepolymer component, of monomeric isocyanate is used.

Abstract: This device comprises a diaphragm valve consisting of a part forming the valve seat, in which a duct for the flow of the product contained in the container is formed, and of a diaphragm made of elastically deformable material closely fitted onto this part.

Abstract: A slit closure valve for container openings includes a membrane member of flexible material having an at least unidirectionally aligned slit-like outlet opening and a base member peripherally surrounding the membrane member and connected to the membrane member. The outlet opening is held in its closed position by the resilient properties of the material although it is adapted to be moved into its open position against the resilient bias force of the material by a predetermined differential positive pressure exerted on one side of the membrane member. A peripheral wall portion of the base member and an adjacent wall portion of the membrane member include therebetween an acute angle of less than 90′.

Abstract: A fluid dispensing closure which incorporates a dispensing valve to control fluid flow through the closure and a vent passageway to vent air into the container as necessary. The closure includes a dispensing spout capable of mating engagement with a receiving container. The dispenser spout has a fluid passageway with a resilient valve made from an elastomeric material seated therein. The vent passageway formed in the closure is selectively sealed by a grommet depending upon the vacuum created within the container as the fluid is being dispensed from the container. A removable overcap sealingly covers the dispensing spout to capture any fluid leakage.

Abstract: A cap for a container may comprise a body, an outlet orifice for dispensing a product from a container, a lid configured to selectively cover at least a portion of the outlet orifice, a snap hinge coupling the lid to the body, and at least one shut-off flap. The at least one shut-off flap may selectively allow the product to be dispensed from the outlet orifice. The at least one shut-off flap and the body may be a single piece formed of a material substantially the same as a material forming the snap hinge.

Abstract: A valve apparatus utilizes a biased flap and air hole to regulate the flow of a fluid from the orifice of a container. The biased flap progressively opens in response to increasing fluid pressure upon the flap. An additional air hole is preferably used to permit air to continuously enter the container while fluid is discharged. A substantially smoother pouring response is achieved.

Abstract: A mouth piece exhalation valve for a nebulizer or breathing circuit. The nebulizer has an internal passageway containing an offset causing an inspiration mist flow to bypass the exhaust valve without impingement. The offset includes a deflector which aids in the deflection of the inspiration mist flow away from the exhaust valve. The deflector is also utilized for directing the exhaust flow upon expiration by a patient through the exhaust valve. The exhaust valve design includes a flap or disc having leaves formed by peripheral arcuate cuts to facilitate the opening and the closing of the leafs in accordance with the expiration and inhalation of a patient respectively. The cuts also aid in the re-introduction of any accumulation of fluid on the external surface of the disc and valve back into the inspirational cycle so as to minimize any external buildup of fluid.

Abstract: An improved method and apparatus for distribution of viscous materials such as concrete slurry or grout mixtures onto target surfaces, the apparatus connectable to a transfer pipe leading from an external pumping mechanism. The method and apparatus includes a generally rectangular chamber having walls providing an upper wall attached to a conduit, the conduit connectable to a transfer pipe by a pivotable annulus or ring. The pivotable annulus provides rotation of the chamber in approximately 360.degree. range of motion in relation to the transfer pipe. As the concrete slurry or grout mixtures are pumped through the chamber by an external pumping mechanism, the walls direct the viscous materials out through an outlet, formed in a lower portion of the front wall, the outlet having an opening shaped for directing the viscous materials toward target surfaces.

Abstract: A dispensing head (102) has at least one dispensing duct (103) for a product to be dispensed, a movable lid (150), and a closing system, permitting fresh air intake, for closing the end portion of the dispensing duct. The closing system is formed by an obturator (105A) made of an elastically deformable material and by at least one seat (115) made of a rigid material. The obturator is in contact with its associated seat when no dispensing takes place, moves away from the said seat by elastic deformation under the thrust of the product to be dispensed, and when the dispensing stops returns by elasticity into a position which permits the renewed air intake. The seat is provided with at least one stop which prevents the obturator from elastically returning into a leakproof position. When the lid is closed, a rigid element of the lid (152) comes to bear on the obturator and causes the latter to return into a leakproof closing position.

Abstract: A dispensing head for the dispensing a product of a liquid to viscous consistency from a container includes a rigid cap (2) and an elastic closing element (4) joined to the cap (2), and a zone of smaller thickness delimited by the edges of a groove (6) made in the elastic element. The zone of a smaller thickness ruptures under the effect of a pressure exerted on one side or the other of the elastic element (4) to define at least one slit (5) capable of opening under the thrust of the product with a view to its dispensing, and returning to its contiguous position when this thrust ceases to be applied. The rupture may occur during manufacture to form the slit or may be caused by a user squeezing the container prior to first use of the product.

Abstract: A membrane closure which prevents spillage during installation of a water bottle onto a dispenser. The membrane closure provides a water tight seal which is opened after the water bottle is installed by generating a hydraulic shock wave within the bottle. The first embodiment of the membrane seal is folded multiple times then unfolds when subjected to a hydraulic shock wave. The second embodiment has a frangible membrane seal which bursts when subjected to a hydraulic shock wave. The membrane may be weakened along a desired rupture pattern. The third embodiment has a membrane seal attached to the water bottle with two different adhesives, a releasable adhesive which releases when the shock wave is initiated, and a permanent adhesive that prevents the seal from completely detaching from the water bottle. Three methods are presented for generating the hydraulic shock wave to open the membrane seal. In the first method, the water bottle is positioned just above the water dispenser and lowered rapidly.

Abstract: A cap and tube device comprising a tube having an opening terminating in a nozzle with an open end and having threads for rotational engagement with a cap. Also included is a check valve in the interior of the nozzle for permitting flow of tube contents substantially only out of the tube while preventing return flow of contents into the tube. The cap is sized to engaged the nozzle at its open end and has a closed terminal end having a first inwardly facing axially centered locating cup for engagement with the open end of the nozzle, and a second inwardly facing axially centered sealing cup for engagement with the open end of the nozzle to form a seal in the nozzle open end. Finally, the cap and tube have a cooperative ring and groove for locating the cap on the nozzle at the position where the sealing cup is in engagement with the nozzle and the ring and groove provide a signal upon full engagement of the cap and tube.

Abstract: A bottle cap having a valve which provides a water tight seal to prevent spillage when a water bottle is inverted for installation onto a water dispenser, but which can be opened after the water bottle is installed by generating a hydraulic shock wave within the bottle to open the valve. A first embodiment has a triple valve seal with mechanical interference between the valve pieces to create an initially water tight seal. A second embodiment employs a dual valve structure. A third embodiment employs a single valve structure. In the first three embodiments, the valves are pivotally attached to the valve body by flexible living hinges. A fourth embodiment has a single linearly sliding valve. Three methods are presented for generating the hydraulic shock wave to open the valve. In the first method, the water bottle is positioned just above the water dispenser and lowered rapidly.

Abstract: A nozzle for fluidizing particulate material, such as mine tailings, comprising a body having a rear inlet end and a cylindrical surface adjacent a front end, the body having a passageway leading from the rear end to an outlet orifice located in the cylindrical surface, with the passageway including an outlet portion diverging at an acute angle from a central axis of the cylindrical surface. The nozzle also has a resilient sleeve surrounding the cylindrical surface and which is capable of sealing the orifice when pressure in the passageway is low relative to pressure in the slurry outside the nozzle. The sleeve is expandable to allow fluid under pressure to exit the nozzle in a generally forward direction when fluid such as water is supplied to the rear end of the nozzle. The invention also includes a self-closing mounting fixture located in the wall of a vessel such as a silo, which prevents escape of slurry from the silo when the nozzle is removed from the fixture for servicing or exchange.

Abstract: The present invention is a discharge nozzle for flexible dispensing tubes containing paste-like or semi-liquid substances. It solves the problem of having to contact the discharge opening of the dispensing tube against a secondary surface to cut off the flow of substance. This is advantageous for eliminating the transfer of germs between the discharge opening of the dispensing tube and the secondary surface. Additionally, it solves the problem of eliminating unwanted accumulation of substance at the nozzle discharge, even when the dispensing tube is used in a repetitive manner, over a long period of time. The nozzle is small in size, has a symmetrical interior surface, and has a discharge portion formed at least partially from a material possessing a low coefficient of friction. This discharge portion has an elongated slit and is attached to a tubular neck. The elongated slit may be configured in the shape of an "I" to form two displaceable tongues.

Abstract: An apparatus for providing an air seal for a device discharging a compressible product, the apparatus including a generally horizontal conduit having an upwardly opening inlet and an outlet spaced from the inlet, a packer blade mounted in the conduit for pivotal movement about a generally vertical axis, the packer blade having a stroke path extending beneath the inlet, a motor connected to the packer blade to cause reciprocating pivotal movement of the packer blade about the axis so that product entering the conduit via the inlet is swept by the packer blade toward the outlet, and a discharge resistor which is located in the conduit between the packer blade and the outlet, which resists the flow of product through the conduit toward the outlet, and which permits compressed product to flow out of the conduit via the outlet, such that the packer blade and the discharge resistor cause uniform compression of the product between the packer blade and the discharge resistor so as to form a plug of product that subst

Abstract: The invention concerns a unit for dispensing at least one fluid product; this unit comprises at least one dispensing duct, each comprising at its end portion a closing system opening towards the outside. The closing system is formed by an obturator which forms part of a component made of an elastically deformable material and a seat which forms part of another component of the dispensing head. The obturator is in contact with its associated seat in the absence of any dispensing action, moving away from the seat by elastic deformation under the pressure of the product to be dispensed, and returning by elasticity into contact with the seat when the dispensing stops. The obturator is subjected to the action of a constraining element tending to keep it applied to the seat wherewith it cooperates.

Abstract: The present invention, in one aspect, discloses a closure device for a container and a container with such a device. The device has a body with a top fluid pour opening and with a top air vent opening. Preferably the air vent extends through a vent extension which projects downwardly from the body. A hinged lid releasably seals the fluid pour opening shut and the air vent shut. The lid is held within a top recess over the two openings and is, in one preferred embodiment, releasable by squeezing a container on which the device is disposed.

Abstract: A device which prevents spillage when a water bottle is inverted for installation onto a water dispenser. The device establishes the flow of water from the water bottle into the water dispenser after a predetermined time delay from when the bottle is inverted. The device is a membrane closure which initially provides a water tight seal on the mouth of the water bottle, but which opens up to allow water to flow from the bottle after a predictable time delay. Thus, the user can slowly and carefully invert the water bottle and place it in the correct position. Three embodiments are presented: 1) a membrane seal which is folded multiple times to create an initially water tight seal, which, when the water bottle is inverted, slowly unfolds due to the hydrostatic pressure, thereby opening the seal and allowing the water to flow; 2) a membrane seal of a moisture sensitive material which is coated with a water impermeable material and which is scored in a desired rupture pattern.

Abstract: A pliable, fluid dispensing pouch is provided which includes a flexible shot-chamber having at least two narrow spaced tortuous fluid pathways each leading to a separate discharge opening at one end of the pouch. The discharge openings are initially sealed closed by the presence of a sealing tab. The discharge openings are unsealed by tearing off the tab. The separate discharge openings are of a diameter suitable to prevent fluid from being hand or finger squeezed out of the pouch once the tear tab has been detached.

Abstract: The invention concerns a unit for dispensing at least one fluid product; this unit comprises at least one dispensing duct, each comprising at its end portion a closing system opening towards the outside. The closing system is formed by an obturator which forms part of a component made of an elastically deformable material and a seat which forms part of another component of the dispensing head. The obturator is in contact with its associated seat in the absence of any dispensing action, moving away from the seat by elastic deformation under the pressure of the product to be dispensed, and returning by elasticity into contact with the seat when the dispensing stops. The obturator is subjected to the action of a constraining element tending to keep it applied to the seat wherewith it cooperates.

Abstract: A bag in squeeze bottle fluid dispenser capable of dispensing substantially all of the fluid product contained therein. A suitable bag support element is inserted inside the flexible bag to prevent substantial axial movement of the bag in the direction of its discharge orifice and to encourage radial collapse of the bag instead. The internal bag support means, which in a preferred embodiment comprises an extruded plastic helix, has an internal fluid passage formed within the coils of the helix and fluid communication to allow fluid contained within the bag to access the internal fluid passage along substantially the entire length of the internal bag support element. Thus, radial collapse of the flexible bag does not block the passage of fluid remaining in the bag through the discharge orifice in the bag until substantially all of the fluid contained within the bag has been dispensed.

Abstract: The invention concerns a unit for dispensing at least one fluid product; this unit comprises at least one dispensing duct, each comprising at its end portion a closing system opening towards the outside. The closing system is formed by an obturator which forms part of a component made of an elastically deformable material and a seat which forms part of another component of the dispensing head. The obturator is in contact with its associated seat in the absence of any dispensing action, moving away from the seat by elastic deformation under the pressure of the product to be dispensed, and returning by elasticity into contact with the seat when the dispensing stops. The obturator is subjected to the action of a constraining element tending to keep it applied to the seat wherewith it cooperates.

Abstract: A valving-type closure having a resilient diaphragm provided with a portion having a through slit for the passage of fluids, the slit portion being adapted to bulge and open the slit in response to fluid pressure applied to one side thereof. The slit portion has abuttable, cooperable structures on one side, which come into forcible abutment and act to physically open the slit as the portion bulges. Preferably the abuttable structures are in the form of rings molded on the underside of the diaphragm. The slit through the diaphragm also extends through the ring, thereby forming two semi-circular ring segments. The ring segments in turn form abutment shoulders that pivot the walls of the slit away from one another when the diaphragm is bulged, thereby resulting in a more pronounced spreading force being applied to the walls, and increasing the size of the opening formed by the slit.

Abstract: A pair of superimposed panels are heat sealed together to define a reservoir in a dispenser pouch, adapted to contain a liquid therein. A tapered-down neck is defined on a lower end of the pouch and communicates with the reservoir to retain a pre-measured charge of the liquid therein. Narrow overlying and unsealed panel portions at the termination of the neck form a normally closed valve that opens when a predetermined external pressure is applied to the pouch.

Abstract: A method and apparatus are disclosed for delivering particulate material while minimizing the release of dust. The apparatus comprises a vertical conduit, and movable flap adapted to close the lower end of the conduit and a counterwieght or linear actuator for moving the flap to close the conduit whenever the quantity of material within the conduit drops to be predetermined level. The device operates so that a column of solid particulate material is maintained in the lower end of the tube at all times to prevent escape of dust.

Abstract: A pair of superimposed panels are heat sealed together to define a reservoir in a dispenser pouch, adapted to contain a liquid therein. A spout is formed in offset relationship on a lower end of the pouch and defines a charging chamber that communicates with the reservoir to retain a pre-measured charge of the liquid therein. The spout terminates at a normally closed valve that opens when a predetermined external and downward pumping pressure is applied to the spout. A retention band may be secured transversely across on outer side of one of the panels to retain the spout when it is reverse-bent and slipped thereunder. The pouch is adapted for mounting in a dispensing unit having a dual-action pressure plate for pumping and dispensing the pre-measured charge of liquid from the spout.

Abstract: A damper device for dampening a grain stream flowing from a discharge end of a spout has an adjustable band for mounting on the spout, a bucket for surrounding the grain stream and composed of a pair of main deflector members located at a first pair of opposite sides of the grain stream, a pair of supplementary and auxiliary deflector members located at each of a second pair of opposite sides of the grain stream in orthogonal relation to the first pair of stream sides, and a support arrangement suspending the main, supplementary and auxiliary deflector members from the mounting band. The support arrangement pivotally mounts the main deflector members to extend below the spout and across the grain stream for impact with grain flowing from the spout and biases the main deflector members for movement toward and away from one another between contracted and expanded relations in response to absence and presence of the grain stream flowing from the spout.

Abstract: The invention relates to improved end closures for a dispensing container. One end closure is a nonmetallic thermoplastic plunger end closure which is comprised of a retaining member and a plunger member which are connected along a fragmentation line. The plunger end closure is assembled to the container body by the retaining member during shipment. Upon use, the plunger is separated from the retaining member along the fragmentation line. The other end closure is a diffusing end closure for dispensing and diffusing material from the container. The diffusing end closure is comprised of a ring member which is affixed to the container and a diffusion disk which is bonded to the ring member. The diffusing disk includes at least three diffusing orifices.

Abstract: The instant invention, is directed to a liquid dispensing system, especially for soap. The system comprises a housing, and a flexible pouch for storing liquid which is held within the housing and which has a discharge nozzle. A mechanism for pumping the liquid from the pouch is operatively associated with the housing. A valve mechanism for checking the flow of the liquid from the pouch includes a mechanism for laterally tensioning the pouch proximate its discharge nozzle so that the tension created is greater than a static pressure head of the liquid in the pouch but less than the dynamic pressure head created by the pumping mechanism.

Abstract: A pouring nozzle for a soft drink, milk or liquor bottle, carton, or the like, which has a feature in that when the container is in an upright position, the nozzle automatically closes to seal off the container. The nozzle includes an internal ball which floats on liquid trapped in the nozzle to close and seal the nozzle when the container is upright. However, the ball is forced into a cavity in the nozzle when the container is tilted over to permit liquid to flow freely from the container through the nozzle.

Abstract: A device for controllably retaining liquid in and releasing liquid from a squeeze deflectable hollow container having a tubular neck defining a rim, about a mouth defined by the neck, incorporates a seal strip bonded to the rim about the mouth to extend over the mouth and block discharge of liquid from the container via the mouth. The strip is characterized as releasing from the rim in response to manual squeezing of the bottle and its liquid contents when the bottle is inverted, causing the contents to increasingly press against the strip; and a holder tab is carried by the strip and attached to the neck so as to retain the strip to the neck after it releases from the rim.

Abstract: A dispenser pump and cartridge forming a single unit which can be discarded after use includes a hollow pump body with an admission valve having flexible lips which separate at the time of use under the action of a pressure gradient established within the product to be dispensed. The pump body also has a delivery valve with a flexible tubular skirt which is inwardly deformable and capable of moving locally away from an annular sealing lip, thus permitting downward escape of a dose of product. Subsequent re-closing of the skirt prevents any upward admission of external air.

Abstract: A dispensing valve is provided for being sealingly disposed with respect to, and dispensing a product from, a discharge opening of a container. The preferred form of the valve includes a generally annular marginal portion adapted to be sealingly engaged when the valve is sealingly disposed with respect to the container discharge opening. The valve also includes a central head portion extending from the marginal portion. The head portion has an exterior side with a generally concave shape when viewed from outside the container and has an interior side with (1) a planar central area, and (2) a generally curved, radially outer portion which tapers toward the planar central area such that the exterior and interior sides converge toward the planar central area to provide a tapered construction with reduced thickness.