Abstract: A dispensing package is provided for fluid products such as liquid soaps, shampoos and conditioners, household detergents, cleaners, polishes, moisturizing creams, and the like, and includes a container with a self-sealing dispensing valve mounted therein. The valve includes a marginal portion, a head portion with a discharge orifice therein, and a generally J-shaped connector sleeve having one end connected with the marginal portion and the opposite end connected with the head portion. The connector sleeve has a resiliently flexible construction, with first and second leg portions that are oriented at an acute included angle, and join one another at an arcuate base portion to facilitate movement of the head portion of the valve when dispensing product from the container. A top dispense embodiment of the package has an inverted J-shaped configuration at the top of the upper leg, which extends arcuately into the head portion of the valve for dispensing products from the top of the container.

Abstract: A dispensing valve is provided for dispensing a product from a container. The valve includes a marginal portion, a head portion with a discharge orifice therein, and a resilient, connector sleeve extending between the marginal portion to the head portion. The connector sleeve has a generally U-shaped cross-section that defines a first leg that is connected with the marginal portion and a shorter second leg connected with the head portion. The connector sleeve locates the head portion so that a plane passing through the head portion extends generally through or outwardly of the marginal portion.

Abstract: A dispensing system is provided for dispensing a product from a container having an opening. The dispensing system includes a spout for communicating with the container opening. The spout defines at least one discharge aperture, a distal seal surface located distally of the discharge aperture, and a proximal seal surface located on the exterior of the spout proximally of the discharge aperture. A nozzle assembly is mounted on the spout for movement between a retracted, closed position and an extended, open position. The nozzle assembly includes a nozzle having a dispensing passage around at least a portion of the spout, a proximal seal surface for sealingly engaging the spout proximal surface, and a distal seal surface located outwardly of the nozzle proximal seal surface for sealingly engaging the spout distal seal surface when the nozzle assembly is in the retracted, closed position.

Abstract: A valve for dispensing the fluid contents of a container such that external contaminants such as dust, air or microbes cannot enter the container even after repeated dispensing cycles. The valve comprises a plug-type valve and an elastomeric sheath type valve such as a flapper valve, slit valve, or duck bill valve. All are one-way devices. The plug is provided with a mechanism for resetting it to the closed position at the end of each delivery cycle such that the plug is a one-way device also. The mechanism can be an elastomeric tether, gravity, or the deformation of a valve part. The plug can be provided with channels or other cut or shaped features, e.g. grooves, to facilitate fluid flow. The container used with this invention must be volumetrically reducible and thereby maintain its own internal pressure at the end of a delivery cycle. Alternatively, the valve of the present invention can be made without the outlet valve i.e., the flapper, slit, or duck bill valve.

Abstract: A personal dispensing system allows various cleansing or sanitizing products to be carried on the body of a user. Often, the product to be dispensed will be a viscous liquid, such as soap, waterless hand cleaner, waterless hand sanitizer or skin lotion. A dispenser made according to the invention includes a product container having a mounting element, such as a mounting clip, located thereon. In many cases, the mounting element will be oriented such that the product container will be inverted when worn on the body of a user. In addition, the mounting element may be removable from the product container so that a new product container can be substituted when the contents of a prior product container are depleted. According to another advantageous aspect of the invention, multiple product containers of different types may be used with a common mounting element. Various interlocking arrangements are contemplated to effect the removable securement of the mounting element to the product container.

Abstract: A fluid delivery device including a container for holding a predetermined quantity of fluid, a gas generator for generating gas within the container, and a dispenser for cyclically dispensing fluid at predetermined intervals out of the container without cyclical actuation by a user.

Abstract: A dispensing package is provided for fluid products such as liquid soaps, shampoos and conditioners, household detergents, cleaners, polishes, moisturizing creams, and the like, and includes a container with a self-sealing dispensing valve mounted therein. The valve includes a marginal flange, a valve head with a discharge orifice therein, and a connector sleeve having one end connected with the valve flange and the opposite end connected with the valve head adjacent a marginal edge thereof. The connector sleeve has a resiliently flexible construction, such that when pressure within the container raises above a predetermined amount, the valve head shifts outwardly in a manner which causes the connector sleeve to double over and extend rollingly.

Abstract: A non-venting valve and dispensing package for fluid products and the like includes a container of the type having an interior volume which reduces as fluid product is dispensed from the package. A self-sealing dispensing valve has a marginal portion sealing about an associated discharge opening in the container, and a valve head with an orifice which shifts between open and closed positions in response to the application and release of pressure on and/or within the container. A vent resisting member retains the orifice in the closed position after each dispensing of fluid product from the container to prevent ambient air from being drawn back through the orifice into the container.

Abstract: A self-closing valve for a packaging container, especially a thin-walled plastics bottle, has an outwardly concave valve head (22) joined to an outer margin (20) by a flexible connecting wall (24). The connecting wall has a frustoconical outer portion (56) and a cylindrical inner portion (57) joined together at an elbow (58). The inner portion (50) is joined to the valve head at a thin, inturned flange (60). The outer portion (56) of the connecting wall is frustoconical and moves between downwardly inclined and upwardly inclined positions as the valve advances to its dispensing position. The outer portion (56) accordingly imparts a bistable operating characteristic to the valve. The elbow (58) of the connecting wall (24) acts as a spring to retract the valve head (22) quickly after dispensing. The flange (60) acts as a living hinge, with substantially no flexural stiffness, so that subsequent deformation of the valve head (22) to allow venting is not resisted.

Abstract: An oil dispenser for use on two-cycle engines such as outboard motors or other two-cycle engines which require a mixture of oil and gasoline. The invention provides for measured volume displacement of oil via a plunger type pump attached at one end to a first fluid containment vessel via a threaded connection. A flexible tube of appropriate internal dimension and length facilitates transport of oil from said first containment vessel, through said pump to, and through a said flexible tube and valve located on the opposite terminus of said invention and into a second fluid containment vessel.

Abstract: A dispensing closure for controlling the flow of a fluid from a container has a conduit having an interior conduit surface partially blocked by a top retainer and a bottom retainer. The dispensing closure further includes a fluid dispensing valve that includes a resilient dome area and a seal area. The seal area extends outwardly, and preferably downwardly, from the dome perimeter to define a seal perimeter shaped to conform to the interior conduit surface to form a seal when the fluid dispensing valve is operably positioned within the conduit between the top and bottom retainers. At least one rib fixedly connects the seal area to the dome area such that deformation of the dome area is transmitted through the at least one rib to the seal area to disrupt the seal and form at least one dispensing flow path. Air pressure on an exterior seal surface of the seal area causes the seal area to deform between the at least one rib to form at least one venting flow path.

Abstract: A self-sealing valve (2) for a liquid dispenser, comprising an envelope (3) of flexible sheet material having opposed inlet and outlet portions and an intermediate portion (6) between the inlet and outlet portions, which intermediate portion (6) comprises a spaced pair of transverse folds (4, 5) in the envelope (3) to restrict or prevent flow of fluent material, e.g., liquid, between the inlet and outlet portions, the arrangement being such that fluent material flow across the intermediate portion (6) can be induced by distortion of the intermediate portion (6), e.g., the application of pressure to the envelope (3) upstream of the intermediate portion, thus causing the seal created by the transverse folds (4, 5) to open to allow the material to pass. A liquids dispensing sachet (1) having a self sealing valve (2) as described above and a wall mounted dispenser (17) for liquids including such a sachet.

Abstract: A dispenser package for fluent products such as cosmetics and lotions that includes an integrally molded plastic container having a flexible body with a sidewall, a closed bottom, and a top wall having a dispensing opening offset from the axis of the container body. A closure has a base wall and a peripheral skirt. In some embodiments of the invention, the closure is rotatably mounted on the container body, and has a dispensing opening in the closure base wall for selective registry with the dispensing opening in the top wall of the container body. Detent elements are provided on the closure and container body for selectively locking the closure in open and closed positions. In alternative embodiments, the closure includes a flip-top hinged to the base wall, with a plug extending therefrom for selectively opening and closing the dispensing opening in the container body top wall.

Abstract: A dispenser of paste material, such as toothpaste, having an outer housing with an open upper side and a dome at the lower side, the roof of which dome includes the closing body of an air entry valve, which air entry valve displaces into the open position when there is a negative pressure within the outer housing, the dispenser also having an inner housing that protrudes upwardly from the outer housing and which includes an application surface and a nozzle opening on its headpiece, wherein the inner housing can be pushed, using the application surface, against the spring force of a bellows that is disposed in the outer housing, itself being sealed off from the inner housing, the result being that, when this force application of force takes place, a transport slug, which travels within the inner housing in the direction of the nozzle opening, pushes material ahead of itself in response to air pressure that has accumulated behind it.

Abstract: A dispenser arrangement allows various cleansing or sanitizing products to be carried on the body of a user, or mounted at other convenient locations. The dispenser arrangement includes a product container, and a holster device adapted to carry the product container. Typically, the product container will be carried in the holster device in an inverted orientation. The holster device includes mounting structure, such as a mounting clip, which attaches to the clothing of a user. An adapter element may be provided so that the holster device can be mounted, via the mounting structure, to a stationary surface. Preferably, the holster device is specially configured so that only a small portion of the product container's outer surface is obstructed. Often, the product to be dispensed will be a viscous liquid, such as soap, waterless hand cleaner, waterless hand sanitizer or skin lotion. A dispensing pressure applied to the flexible sidewall of the product container causes the viscous liquid to be dispensed.

Abstract: The invention relates to an endpiece for dispensing and/or measuring out liquid pharmaceutical substances, the endpiece comprising a cylindro-conical body (1) fitted with a bottom base (13) for receiving thrust and for coupling to a tank capable of being put under pressure, and an axial ejection duct (10) containing a central core (2) and communicating firstly at its top end with a spray nozzle, and secondly at its bottom end with the tank, it is characterized in that the top end of the ejection duct (10) is closed in temporary and leakproof manner by a wall (111) which is secured to the top portion (1a) of the body (1) and which extends perpendicularly to the duct, the wall being movable in reversible manner under drive from the substance, said wall being provided with a central orifice (110) capable of being closed in the closed position by a stud (20) secured to the core (2) being forced thereagainst, the periphery of the wall being attached to said body (1) via an elastically deformable link element (112)

Abstract: A dispensing system is provided for being sealingly disposed with respect to, and dispensing a product from, a discharge opening of a container wherein an annular mounting flange extends radially inwardly adjacent the opening. The valve is molded from a material to define a flexible, resilient structure having a head portion and a surrounding marginal portion. The head portion has a normally closed dispensing orifice which opens when the pressure in the interior of the container exceeds the pressure on the exterior of the valve by a predetermined amount. The marginal portion is connected with the head portion and has a generally annular wall defining a generally annular groove which is open radially outwardly for receiving the mounting flange. The annular wall is sufficiently flexible to elastically deform as the wall is forced against the mounting flange to accommodate sealing of the mounting flange in the groove.

Abstract: A self-closing valve assembly for installation in a dispensing opening of a container, a seal cap or the like, includes a first closure element having a domed wall portion of resilient material incorporating a passage-opening, said wall portion being resiliently deformable from a closed position into an open position under the influence of a first differential pressure force resulting from pressures acting on its opposite surfaces, and a second closure element having a domed wall portion for sealing the passage-opening when the first closure element is in its closed position.

Abstract: The invention relates to a closure membrane (2) with a closure head (5) and a retaining border (3), the closure head being connected to the retaining border via a connecting wall adjoining the outer border, with the entire arrangement being of essentially cup-shaped design, the closure head preferably being of a thickness which increases outwards from the center. The connecting wall is attached to the closure head via a connecting web (51) which is of lesser thickness than the border region of the closure head and which in the rest position of the membrane projects radially inwards from the connecting wall.

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 modular cap delivery system comprising an elastomeric seal and conformably engaging seat can be affixed to or integrated in the neck of a container such as a bottle, flexible bag, tube, or any container having a neck and holding a quantity of a flowable medium. The configuration of the seal and seat eliminate the influx of air, airborne pathogens, or any contaminant into the container of flowable medium to which the delivery device is attached, thereby maintaining the integrity and sterility of a flowable material, even when challenged by direct contact through immersion in suspensions of bacteria or viruses. The delivery device is highly scalable in size, can work for viscous fluids that are difficult to flow, and enables a flowable material to be reformulated without preservatives or antioxidants. This provides the advantage of an enhanced therapeutic effect for many medications, particularly eye care solutions.

Abstract: An automatically closing dispenser stopper applicable to deformable containers for liquids, the stopper being constructed of plastic material and dispensing the liquid when the container is squeezed or deformed with the stopper facing downwards, the stopper closing automatically to form a seal when the compression exerted on the outside of the container ceases, this the tending to elastically recover its initial shape to put the liquid contained in it under vacuum and hence cause the stopper to close automatically.

Abstract: A dispensing structure is provided for discharging the contents from the interior of a container. The structure includes a body for extending from the container. The body defines a dispensing opening and a sealing surface around the dispensing opening. A lid is provided for movement between open and closed positions. The lid has a frame defining a lid dispensing passage through the lid. The lid has a mounting flange extending inwardly adjacent the dispensing passage, and the lid has a valve mounted to the lid flange across the dispensing passage. The flexible valve has self-sealing slits which open to permit flow therethrough in response to increased pressure on the side of the valve facing the container when the lid is closed. The valve has a lower flange which is below the lid flange and which sealingly engages the body sealing surface when the lid is in the closed position.

Abstract: A container is provided for being supported from a rod. The container includes a dispensing end portion defining an opening through which a fluid product can be dispensed from the container interior. The end portion defines a dispensing chamber for holding at least some of the fluid product when the container is disposed with the dispensing end portion hanging downwardly. Two extension portions extend from the dispensing end portion. Each extension portion defines an extension chamber for communicating with the dispensing chamber and for holding some of the product. Each extension portion has at least one projecting portion projecting generally toward a projecting portion of the other extension portion to define a rod-receiving cavity between the extension portions below the projecting portions.

Abstract: A dispensing system is provided and can be embodied in a dispensing closure for a container having an opening. The system includes a unitary, resiliently flexible, molded valve array structure for being sealingly disposed on the container over the container opening. The valve array structure includes an impervious membrane. The valve array structure also includes a plurality of resiliently flexible, slit valves molded unitary with the membrane. Each valve has a normally closed dispensing orifice which opens when the pressure in the interior of the container exceeds the pressure on the exterior of the valve by a predetermined amount. The valves can be arranged to discharge parallel streams, diverging streams, or converging streams.

Abstract: A push-button applicable to the stem (3) of a pump (4) for delivering liquids or creams under pressure. The push-button includes a cylindrical cavity into which there extends a shutter (10), the free end of which lies opposite a discharge nozzle (8) formed in an elastically flexible body (7) secured to a piston (13) movable on the shutter (10) by the effect of the pressure delivered by the pump.

Abstract: A dual-chambered dispenser is provided including a pair of elongated hollow tubes containing separate flowable material streams, a manifold for directing the flow through separate chambers, a cap fitting over dispensing openings of the manifold and a metering valve located within the manifold downstream from the dispensing openings. The valve is present to adjust differences in flow rates between the two material streams. In a preferred embodiment, the tubes are juxtaposed along their respective flat outer walls which may include a series of ribs/depressions allowing for coupling of the tubes and strengthening the flat walls against collapse relative to other wall areas of the tubes. Advantageously the valve is a duckbill type and the tubes taper in a pear shape, the broader portion being near the open end of the tubes.

Abstract: A reservoir body (101) contains a product (102) and is provided with at least two openings; one (P) of these openings is provided with a bulb (103) for increasing the pressure, and the other opening (R) is provided with a constrictor (110) for braking and retaining the product (102). This device permits easy manipulation, allows a controlled dispensing, and optionally precise dosing, while ensuring a good preservation of the product (102) over time.

Abstract: A dispenser head for dispensing a fluid includes a dispenser endpiece of rigid or semi-rigid thermoplastic material and a flow reducer member of elastically deformable thermoplastic material secured to the endpiece. The member includes at least one slot whose edges are suitable for moving apart under the effect of thrust from the fluid while it is being dispensed. A method of making the dispenser head includes making the flow reducer member by injection molding from one or more injection points situated on one or both sides of the slot.

Abstract: A dispensing head for a container is disclosed. The dispensing head includes a portion defining at least one opening on the dispensing head for permitting dispensing of a product via the opening. A valve is configured to limit direct flow of air into the container via the opening and to permit dispensing of the product via the opening. The dispensing head further includes porous material impervious to the product and capable of allowing passage of air into the container via the porous material. The porous material is at least partially exposed on an exterior surface of the dispensing head. In addition, part of the valve is formed of the porous material and the porous material at least partially defines the opening on the dispensing head. Also disclosed is a dispenser including the dispensing head and a container containing the product. The dispensing head is provided on the container.

Abstract: A valve (1), particularly for an aerosol container, includes, inside a valve body (2), an inlet passage (4) communicating with the container and an outlet passage (10), a first elastic return (16) for urging the valve (1) into the closed position, and a regulator for regulating the product outlet flow rate, which includes a second elastic return (14) for supplying a set-point pressure for the regulator. The second elastic return (14) is arranged in a compartment (12) of the valve body (2) isolated from the product, the pressure inside the compartment (12) being equal to atmospheric pressure.

Abstract: The container stopper comprises a cylindrical part to be engaged in the neck of a container and has a groove which extends peripherally on at least one part of the cylindrical part circumference. Two channels separated from each other, extend in the cylindrical part of the stopper and open into the groove through orifices respectively spaced from each other in the groove peripheral direction. A diaphragm of elastomeric material closely matches the shape of the cylindrical part and the groove surface covering the orifices of the two channels. The diaphragm forms a shut-off valve that by its elastic deformation, allows a fluid substance contained in the container to flow from inside the container outwards, as well as from outside into the said container.

Abstract: A dispensing head for a container holding a product of liquid-to-pasty consistency includes a body in which a product outlet orifice and a closure member for selectively closing off the orifice are provided. The closure member includes of a member made of an elastically deformable material covering the orifice and is configured to move away under the pressure of the product in order to expose the orifice and allow the product to pass through it, and is configured to return to the closed position when the pressure is released. The closure member includes a sleeve, a first end of which is fastened to the body and a second end of which forms a free edge, said sleeve surrounds the body and is positioned over the orifice when said free edge has been turned up over the body. The body is rigid or semi-rigid.

Abstract: A dispensing system for a container is provided in the form of a dispensing end structure defining a dispensing orifice and a surrounding attachment region. Subsequently, a dispensing valve is molded from a second material to include (a) a peripheral portion molded against, and bonded to, the end structure attachment region, and (b) a central portion that extends from the peripheral portion across the dispensing orifice.

Abstract: An assembly for dispensing a fluid product includes a container, a dispensing head containing a channel for dispensing the product to be dispensed, and a closure system being located at the terminal part of the channel. The dispensing head includes a support by which the dispensing head is mounted on the container, and a movable member slidably connected to the support. The movable member includes an L-shaped dispensing channel portion, having a transverse part, of which an end emerging to the outside carries a dispensing orifice, and an axial part which emerges at a lower part of the movable member. Studs on the movable member provide the movable member with two stable positions, with respect to the support, when the movable member is moved translationally with respect to the support. In a closed position, the axial part of the dispensing channel is in line with a solid part of the support. In an open position, the axial part of the dispensing channel is in line with a passage in the movable member.

Abstract: A dispensing system is provided for dispensing liquid from a container. The system includes a discharge conduit defining a flow passage for establishing fluid communication with liquid from the container. A resilient valve is provided to extend across the discharge flow passage. The valve has an interior side for being contacted by the liquid and an exterior side exposed to ambient external atmosphere. The valve defines a dispensing orifice that opens when pressure on the valve interior side exceeds the pressure on the exterior side by a predetermined amount. A resilient baffle is located upstream of the valve.

Abstract: An assembly for dispensing a fluid product includes a container with two separated compartments; and a dispensing head containing a channel for dispensing the product. The channel is two dispensing passages, each associated with a respective compartment, and each terminating in a dispensing orifice opening to the outside. A closure member is located at the dispensing orifices. The closure member is a springy leaf at least partially in contact with a seat at the dispensing orifices, when dispensing is not taking place, moving away at least partially, from the seat by flexing under the pressure of the product being dispensed and coming back, by elasticity, to its initial position, when dispensing ceases by the action of a stressing member. The springy leaf is a flexible material and the stressing member is a heel attached to the dispensing head.

Abstract: The invention relates to a self-closing closure with a closure cap (1), with a through-passage opening (8) formed in the closure cap (1), and with a closure membrane (2), assigned to the through-passage opening (8), the closure membrane (2) having a bottom retaining border (3) and a top, essentially concave closure head (5), the closure head (5) and the retaining border (3), furthermore, being connected by a connecting wall (4), and, for the purpose of achieving a solution which is favorable in terms of both usage and production, proposes that a widened region (9) adjoins the through-passage opening (8) towards the outside, that the closure head (5) is arranged in the widened region (9), and that the connecting wall (4) extends into the widened region (9), passing through the through-passage opening in the process.

Abstract: A dispensing system is provided for a container having an opening to the interior. The container has a sealable seat around the opening and a thread. A closure is disposed on the container. The closure defines a thread that is threadingly engaged with the container thread for accommodating movement of the closure between a lowered position and an elevated position. The closure defines a dispensing passage for establishing communication between the container opening and the exterior of the closure. The closure includes a dispensing valve disposed in the dispensing passage for opening to dispense fluid therethrough and for closing to occlude flow. The closure includes an occlusion member inwardly of the valve in the dispensing passage to sealingly engage the container seat and prevent flow from the container opening into the dispensing passage below the valve when the closure is in the lowered position and to permit flow into the dispensing passage when the closure is in the elevated position.

Abstract: A valved dispensing closure is adapted to be mounted on a resiliently deformable bottle. The valved closure has a self-sealing dispensing valve mounted internally of the base of the closure by a securement in the form of an internally mounted retaining ring or inner deformable plug. A protective cover is adapted to extend over the side and top of the base to protect the valve from inadvertent activation. A tamper evident part is at the bottom of the base to visually indicate when the closure is removed after having been applied on the container after it is filled with product to be dispensed.

Abstract: A dispensing structure is provided for discharging the contents from the interior of a container. The structure includes a body for extending from the container. The body defines a dispensing opening and a sealing surface around the dispensing opening. A lid is provided for movement between open and closed positions. The lid has a frame defining a lid dispensing passage through the lid. The lid includes a flexible valve that is disposed within the lid frame across the lid dispensing passage. The flexible valve has self-sealing slits which open to permit flow therethrough in response to increased pressure on the side of the valve facing the container when the lid is closed.

Abstract: The invention relates to a dispensing head for a product of a liquid to viscous consistency, as well as a dispensing unit fitted on this head. This head has a rigid cap capable of being fixed on a reservoir for the product. An elastic flow reducing element is joined to the cap and is fitted with at least one slit provided with edges capable of moving away from one another under the thrust of the product and of returning to an initial position when the thrust stops. In the initial position, the edges of the slit are noncontiguous and are spaced from one another at a predetermined distance so as to define an opening through which the product cannot flow to any appreciable extent by gravity, substantially reducing the thrust to be applied for causing the product to emerge.

Abstract: A system is provided for contamination free delivery and control of a flowable medium contained in an enclosed flow path or a container. The system is highly scalable in size and works even with viscous fluids which are difficult to flow. The device enables a flowable material to be formulated without anti-oxidants, preservatives or anti microbial agents. This provides the advantage of an enhanced therapeutic effect for many medications, especially those which are considered labile. The device also preserves the integrity and sterility of a flowable material contained in an enclosed flow path such as blood plasma, and is effective against microbial as well as viral challenges. The device can be used to maintain the carbonation of a carbonated flowable medium. The system provides a seat and reversibly deformable seal disposed in the flow path; wherein the seal and seat are moveable between a closed and open state upon the deformation of the seal.

Abstract: A dispensing package for fluid products and the like comprises a container shaped to receive and retain a fluid product therein, and includes a discharge aperture therethrough. A self-sealing closure includes a marginal flange portion, and a head portion with an orifice which opens and closes in response to the application of a predetermined discharge pressure. The flange portion of the closure is positioned about and encloses the discharge aperture, and is constructed from a thermoplastic material, which is heat fused to the container to form a secure interconnection and fluid seal therebetween.

Abstract: A non-venting valve and dispensing package for fluid products and the like includes a container of the type having an interior volume which reduces as fluid product is dispensed from the package. A self-sealing dispensing valve has a marginal portion sealing about an associated discharge opening in the container, and a valve head with an orifice which shifts between open and closed positions in response to the application and release of pressure on and/or within the container. A vent resisting member retains the orifice in the closed position after each dispensing of fluid product from the container to prevent ambient air from being drawn back through the orifice into the container.

Abstract: A squeeze-type container package that comprises a flexible resilient container body and a self-sealing closure assembly mounted to the mouth of the container body. The self-sealing closure assembly includes a dispensing valve of one-piece integrally molded elastic construction having an annular base, an internal wall portion that extends radially inwardly and axially from the base, and a mouth portion that includes a slit opening oriented diametrically of the annular base. Internal stresses within the wall portion bias the slit to the closed position. An annular lip that extends radially outwardly from the valve cooperates with an annular internal rib on the closure for venting the interior of the container body to atmosphere when the container body is released following dispensing of product.

Abstract: A dispenser for dispensing charges of fluid from a container and applicable to a mouth of the container with the container in an inverted position and the mouth down. The dispenser includes a body formed of resilient elastomeric material having a hollow annular upper part having a flexible, resilient annular wall and an upper and lower end and constituting a bellows which is downwardly expansible and upwardly contractible by flexing of the annular wall. The body has integral with the bellows a lower part having a discharge port. The dispenser includes a first check valve at an entry end of the bellows operable for flow of fluid into the bellows on expansion thereof and operable to block flow of fluid from the pump member out of its upper end on contraction thereof. A second valve is operable for dispensing the charge of fluid from the bellows down into the outlet nozzle on contraction of the bellows and to block flow out of the bellows outlet on expansion of the bellows.

Abstract: A self-sealing, tamper-evident closure including a cap body and an integrally-formed gasket valve is provided for use on a container. The cap body includes a tab integrally molded onto a removable frangible portion which breaks away from the cap body and exposes a self-sealing, flexible gasket valve. The gasket valve is molded in place on an inner surface of the cap body and includes a longitudinal slit to provide a dispensing orifice. A method for making a closure of the present invention is also disclosed, wherein an integral cap body is formed by injection molding, a quantity of liquid gasket material is deposited within a pocket formed on the cap body, a flexible gasket valve is formed by the liquid gasket valve material curing in place within the pocket and a longitudinal slit is imposed through the gasket valve to provide a dispensing orifice.

Abstract: A dispensing structure is provided for a container that has an opening to the container interior. A membrane initially occludes the container opening. A cover extends over the container opening and over the membrane. The cover has a peripheral frame and a panel that is connected to the frame. The panel has a dome-like, outwardly convex configuration defining a dispensing aperture and is normally biased outwardly. The panel can be moved to an inverted, inwardly concave configuration. A dispensing valve is disposed in the cover across the dispensing aperture. A penetrator extends from the panel inwardly of the dispensing valve for penetrating the membrane when the panel is in the inwardly concave configuration.

Abstract: An assembly for dispensing a fluid product includes a container and a dispensing head with a channel for dispensing product. The head is rotatable and includes alignable orifices for fluid communication with the container via the dispensing channel. A closure is located at a terminal part of the channel. The closure includes a flexible flap at least partially closing the terminal part, when dispensing is not taking place, moving away at least partially from the closing position by flexing under the pressure of the product being dispensed, and returning, by elasticity, to the closing position, when dispensing ceases. The flap is normally urged into the closing position by a stressing member, which is a heel formed continuously with the flap and connected in the dispensing head.