Abstract: A device for facilitating ease of dispensing of paint from a container utilizing a brush. The inventive device includes a rim engaging assembly for coupling to an upper rim of a paint can. A fluid guide assembly extends across a portion of the rim engaging assembly for guiding fluid from a brush scraped against the fluid guide back into the can, and can also be utilized for facilitating pouring of paint from the can in a directed stream over the rim of the can.

Abstract: Method and appartus for the pouring of liquids by a partially closed shell extending from a base to a rounded and interrupted tip, with partially opened shell sides extending from the base to the tip which is interrupted by a a "V" shaped notch; the shell has a base advantageously inclined with respect to the pouring axis of the shell to permit downward flow of fluid into an aperture that communicates with the opening in the shell; the shell can be a pouring spout covered by a protective cap which is unscrewed and removed to expose the spout and permit fluid to be poured between open sides along the shell and over a sharp, interrupted edge at a tip, by which flow is terminated when the shell is up-righted, so that the sharpness of the interruption and the general configuration of the tip reduce the usual dripping of fluid after a pour.

Abstract: This invention provides an article for containing and pouring material. The article includes a container with an open end, a bottom, a wall extending from the bottom to the open end and forming at least one corner, a lip extending from the wall at the open end and toward a central axis of the container, and a pouring spout at the corner. The pouring spout is positioned on an interior surface of the wall and has a contour for directing material to the corner and out of the open end. The contour is formed by increasing the thickness of the wall on both sides of the corner. A handle is attached to the container near the open end of the container. A lid is provided having a shape adapted to cover the open end of the container and create a seal with the lip of the container.

Abstract: In accordance with the invention, a liquid dispensing fitment for use on a container having a neck comprises a plastic body which has an inner wall defining an axial spout extending from within the neck of a container and axially beyond the end of the neck. The body has an outer annular wall spaced from the spout and connected to the spout by an integral annular connecting portion. The spout extends axially beyond the outer wall and has an upper generally C-shaped cross section defining an opening and a lower annular cross section. The annular connecting portion is inclined with respect to the axis of the spout and has its lowermost portion aligned with the opening of the C-shaped portion of said spout. The outer wall has an axial opening extending from a position aligned with the juncture of the C-shaped portion and annular portion of the spout through the annular connecting portion to define a combined drain back opening and a near empty pour out hole.

Abstract: A fluid dispenser for use in consistently depositing relatively thick and lumpy materials onto receiving surfaces which employs a supply path to a plurality of pump/valve combinations and a feedback pressure line to assure an adequate pressure at the point of deposit. There are positive displacement pumps which operate continuously through the plurality of valves with an additional feedback path to assure constant flow of the material.

Abstract: A dispenser cap for discharging measured amounts of liquid contents from a container includes an outer cylindrical side wall having upper and lower portions, the lower portion provided with interior surface configuration for securing the cap to a container. An inner cylindrical side wall is spaced radially from the outer cylindrical side wall and at least partially defines a dispensing chamber. A weir panel within the inner cylindrical side wall is configured to provide a weir opening between the container and the dispensing chamber, and a recloseable top is provided which includes an outer peripheral skirt adapted to be telescoped over and secured to the outer cylindrical side wall. The top is pivotally secured to the outer cylindrical side wall radially adjacent but axially spaced from the weir opening.

Abstract: Disclosed is a fluid dispensing container and an actuator therefor that attenuates accumulation of solidified sprayed fluid.

Abstract: A liquid dispensing fitment for use on a container having a neck comprises a plastic body which has an inner wall defining an axial spout extending from within the neck of a container and axially beyond the end of the neck. The body has an outer annular wall spaced from the spout and connected to the spout by an integral annular connecting portion. The spout extends axially beyond the outer wall and has an upper generally C-shaped cross section defining an opening and a lower annular cross section. The annular connecting portion is inclined with respect to the axis of the spout and has its lowermost portion aligned with the opening of said C-shaped portion of said spout. The outer wall has an axial opening extending from a position aligned with the juncture of the C-shaped portion and annular portion of the spout through the annular connecting portion to define a combined drain back opening and a near empty pour out hole.

Abstract: A self-sealing closure device for a container comprising an insert (1) adapted to be secured within a container neck (2) and comprising a pouring opening as well as a cap (11) adapted to be fastened on the container neck (2). The insert (1) comprises an inwardly extending resilient conically shaped sealing device (8), which at its inner end is provided with an upwardly facing sealing face (10) adapted to sealingly co-operate with a downwardly facing sealing face (18) on the cap (11). The sealing engagement of the two sealing faces (10, 18) being released at a predetermined internal overpressure in the container.

Abstract: A fluid dispenser for use in consistently depositing relatively thick and lumpy materials onto receiving surfaces which employs a supply path to a plurality of pump/valve combinations and a feedback pressure line to assure an adequate pressure at the point of deposit. There are positive displacement pumps which operate continuously through the plurality of valves with an additional feedback path to assure constant flow of the material.

Abstract: A dispenser for a container having a pouring spout being integral with a spout portion and being disposed a retaining wall. The pouring spout of the dispenser is configured to allow orientation specific stacking whereby a spout portion is stacked onto a previously formed spout portion to form a stack of spout portions being aligned in the same direction. The dispenser includes an integral flow opening formed through an underside of the floor between the retaining wall and the pouring spout. The flow opening is coplaner with a horizontal plane through a juncture of the neck and the shoulder of the container and provides a channel through which the contents of the container can flow unobstructedly between the shoulder of the container and the lower end of the spout portion, which diminishes the amount of residual contents left within the container.

Abstract: A liquid dispensing package includes a container whose finish has an opposed pair of slots extending vertically from a free end thereof. A nozzle element with a dispensing passage extending therethrough is positioned within the finish and has an opposed pair of pins which extend into and through the slots of the finish to permit the nozzle element to translate, but not rotate, with respect to the finish, the translation being between a sealed, non-dispensing position and an unsealed, dispensing position. A cap element is rotatably affixed to the finish and has an opening in a top central panel which is aligned with the dispensing passage of the nozzle element. A skirt of the cap element has part helical grooves on its inside surface, and these grooves receive the free ends of the pins of the nozzle element. Thus, rotation of the cap element results in translation of the nozzle element.

Abstract: A plastic container for pourable liquids such as detergents has a drain back feature and has an internal thread for receiving an externally threaded cap which also serves as a measuring cup for the liquid. The container is formed in two pieces, a container body and a separately formed pour spout component which is assembled to the container finish preferably by ultrasonic welding. In preferred embodiments a lip of the pour spout component is pressed and welded down onto an annular top surface of the container finish, or down into an annular recess on the container finish. The ultrasonic welding operation is accompanied by motion and pressure, simultaneously deforming and welding the top edge of the pour spout component wall down onto the container finish, so that the connection forms a liquid tight seal.

Abstract: A coating head is provided along a conveyor path, and directs a coating solution toward the objects traveling on the conveyor path below the coating head. The coating head feeds the coating solution in such a manner that it forms a curtain-like stream when it flows onto the objects. A collector receptacle is provided below the coating head for accepting the remainder of the coating solution therein, and a circulating conduit path connects between the collector receptacle and the coating head by way of an intervening circulating pump, for re-using the remainder of the coating solution. The coating solution comprises a brazing alloy powder solution.

Abstract: A dispensing device for dispensing measured doses of liquid. A fluid tight container which holds the liquid is equipped with a hollow shell at its bottom portion. The shell has one or more inlets to allow liquid to enter it. A dispensing conduit extends from the shell to the top of the container and presents a dispensing outlet which discharges liquid from the container. A flow restriction in the dispensing conduit prevents the entirety of the conduit from filling with liquid during the dispensing cycle. This assures that an air path remains open in the conduit to provide outside air through a port in the conduit to displace the liquid that is dispensed.

Abstract: This invention relates to a liquid jet blower that operates as an aerosol sprayer without using any pressurized gas. This invention is intended to provide a liquid jet blower which is free from clogging of the nozzle and undesired flows of the liquid outside its container. To that end, structure is provided for relieving any excessive pressure within its pressure chamber and transferring any remaining liquid to a small chamber specifically arranged within the blower.

Abstract: The significance of this invention is to provide an upgraded container for reusable cooking grease. The product comprises components constructed of heat resistance material to effectively store, refrigerate and reheat cooking oil without deforming shape or dimension. There is a flip latch used to scoop grease drippings back into the container and to cover the pouring holes. Beneath the holes is a drip catcher used to catch dripping grease after pouring. An indicator shows level of contents at all times. At the top rim of the container is the strainer secured in place to prevent anything other than grease from flowing back in the container.

Abstract: The tubes of this invention are deformable and will usually not be collapsible. The tubes have a view window and a elongated nozzle. The tubes can be made by blow molding or extrusion. The view window permits a person to determine the contents remaining in the tube and the nozzle provides for ease in dispensing.

Abstract: A rotary drum assembly contains a flowable material and includes peripheral openings through which the material can flow to form pieces of the material on a belt traveling beneath the drum assembly. A guide contacts the outer periphery of the drum assembly for pressing residual material back into the openings. The guide can be pivoted away from the drum assembly for servicing, and can be adjusted to different positions around the circumference of the drum assembly.

Abstract: An externally threaded vessel having an outwardly projecting directed pour spout to permit substantially mess-free dispensing of liquid from the vessel. The tip of the outwardly projecting directed pour spout exhibits a cross-sectional profile which resides completely within the outline which would be formed if the external thread on the vessel were to be extended upwardly a sufficient distance to include the tip of the pour spout. Sizing and positioning the tip of the pour spout in the foregoing manner permits dispensing of liquid from the vessel without contaminating the external thread or the exterior surfaces of the vessel, yet permits engagement of the vessel with a secondary vessel having a complementary thread engaging means without any interference with the tip of the outwardly projecting directed pour spout. In essence, the cross-sectional profile of the tip of the outwardly projecting directed pour spout acts as an extension of the external thread on the vessel incorporating the pour spout.

Abstract: A self-draining container includes a body, an integral wall extending upwardly from said body and encircling an integral dispensing spout which communicates with said body and extends above the top of the wall. An integral web joins the wall and the dispensing spout to form a drain channel. A drain opening is defined adjacent the channel for draining fluid from the channel into the container body. A cap having a depending skirt defining a thread which mates with an internal thread on the container wall to close the container.

Abstract: A dispensing closure for directing the contents out of a container including a central body portion having a top surface and a substantially cylindrical imperforate peripheral wall. The closure also includes a spout body reciprocally mounted to the body portion having an inner periphery which cooperates with the peripheral wall of the body portion to form a variable opening between the spout body inner periphery and the peripheral wall to provide a closure position and a plurality of dispensing positions for dispensing the contents of the container at a plurality of different rates as the spout body is moved on the body portion away from the closed position.

Abstract: An integral blow molded bottle having a neck, a thread surrounding the neck and a collar at the top of the neck. A circumferential flange is provided on the outside of the top of the collar and a support column is provided on the inside of the collar for limiting threading of a cap down on the neck. A circumferential groove is formed in the outside of the collar to prevent bottoming of the flange by a cap threaded onto the neck.

Abstract: A liquid dispensing vessel having a pour spout which will provide substantially mess-free dispensing of viscous liquids, such as laundry detergents, during two different modes of dispensing: a concentrated stream as might be used for spot treating articles of clothing; and a bulk dispensing cycle to quickly empty the vessel's contents into a washing machine. The dual function pouring spout of the present invention may be employed either directly on a bulk liquid container or on a closure member used to transfer liquid from a bulk liquid container to a washing machine.

Abstract: This invention relates to a facility for storage of liquids, and more specifically, a leak detection system for an automotive service station. This system consists of a plurality of tanks provided with pipelines. This tank system is stored in a multi-walled vault or containment box. The pump lines are surrounded or contained with return spill casings. If a leak occurs in the lines, the gasoline flows by gravity to a separate service chamber. In this rectangular service chamber, the leak can be visibly observed from a top view by a service station attendant and should a pipeline require replacement, it is readily withdrawn from its casing and replaced, without any excavation.

Abstract: A container formed with an upper annular edge defining an outer annular edge and an inner annular edge, with a torroidal trough coextensively therebetween, with the trough formed with a plurality of apertures to permit fluid flow return to the container. A pour spout is formed originating interiorly of the inner annular edge adjacent the outer edge to enhance fluid flow from the container. The lid structure includes a central surface with a torroidal outer lid flange, with the outer lid flange including a plurality of equally spaced tabs radially directed exteriorly of the outer lid flange, with each of the tabs including a recess to accommodate manual grasping.

Abstract: A pouring cap for mounting atop a neck of a container is unitarily formed of a synthetic resin with a body adapted to fit over the neck of the container and having an outer body edge centered on an axis, a central pour tube within the edge and forming an axially throughgoing outflow passage, and a cover sealingly engageable in a closed position with the body over the passage at the edge. A hinge is provided on the edge between the body and the cover and a hook projects axially from the cover in the closed position past the edge of the body at a location on the edge generally diametrically opposite the hinge. A retaining element defines with the body an opening adjacent the edge opposite the hinge location. The hook is engageable with elastic deformation through the opening to catch underneath the retaining element and once inserted through the opening is engaged such that the hook or the element must be permanently deformed to move the cover from the closed position.

Abstract: A package for flowable products incorporating a refill facilitating pouring spout structure. The pouring spout portion of the structure is equipped with a piercing element along its uppermost edge. The refill package of flowable product preferably comprises a flexible pouch which is positioned on top and over the refill facilitating pouring spout structure. The piercing element on the refill pouring spout portion of the structure pierces the bottom of the flexible refill package and the bulk of the flowable product contained therein runs through the pouring spout portion of the structure into the container. Any flowable product running over the outside walls of the pouring spout portion of the structure runs into the container via a drain back feature and vent hole provided at the base of the pouring spout portion of the structure. The refill facilitating pouring spout structure is preferably provided with screw threads for releasably attaching it to the container.

Abstract: A package for storing and dispensing pourable contents includes a container with a bottle having a neck with an opening in which there is mounted a gasket in the form of a pouring and drainback fitment. The fitment has a spout, a circumscribing well in communication with the bottle opening, and a lip supported on the neck of the bottle. A cap includes a measuring cup, the brim of which is received within the well of the fitment, when the container and cap are fastened. The threaded exterior wall of the cap is connected to the measuring cup by a web which is urged against the lip of the gasket forming drainback fitment to form a leak-proof seal when the cap is threaded onto the neck of the bottle.

Abstract: An integral molded container including a neck, an interior spout or pour neck joined to the neck by a stable circumferential inversion column.

Abstract: A low profile closure which includes a coupling member which is mounted on a container dispensing opening, and an open ended dosing cap including a boundary wall which is dimensioned for removable attachment to an interior surface of the coupling member. The coupling member includes an open ended body portion formed by an upright boundary wall, and a top peripheral edge which defines an outwardly projecting spout. An exterior surface of the dosing cap is arranged in conforming frictional relation to the outwardly projecting spout to provide a low profile closure. Cooperating external and internal threads respectively disposed on the cap boundary wall and coupling body portion are employed to removably fasten the cap in the coupling member.

Abstract: A dispenser closure for attachment to the threaded neck of a container includes spout portion having an annular wall, a shoulder and a depending skirt, the skirt being threaded on an interior surface to lockingly engage the container neck, a spout formation disposed with an area defined by the annular wall and being integral with the spout portion, and a closed-top cap portion having a radially projecting annular shoulder with a depending collar, the collar being threaded on an interior surface to engage a threaded exterior surface of the upper end of the spout portion. A drainage opening in the spout portion facilitates the drainage of the entire contents of the container, and leveling formations facilitate automated assembly of the closure upon the container. Provisions are also disclosed for preventing the exposure of threaded areas of the closure to container contents.

Abstract: An apparatus for dispensing liquids or viscous fluids, especially ABS and PVC type cement, includes an upwardly opening container having a large externally threaded mouth that communicates with an interior of the container. A downwardly converging well is positioned in the mouth and has a hole extending through a lower end thereof so that the well communicates with the interior of the container. The well acts as a funnel when the container is filled. An elongated brush or other applicator member is adapted to be inserted through the hole in the well and has an upper handle portion, a lower applicator and an intermediate enlarged intermediate portion that engages the portion of the well defining the hole to cover the same. An internally threaded cap screws over the mouth of the container and has a large central opening that communicates with the well.

Abstract: A container (20,20') is disclosed as having a unitary plastic blow molded bottle (22,22') which has a dispensing spout (32) projecting upwardly from a hollow body portion (26) and also has a moat (34) that surrounds the dispensing spout such that securement of a measuring cup (24,24') to the bottle in a sealed relationship permits excess liquid contents in the measuring cup to drain back into the bottle through an opening (36) in the moat. The unitary blow molded bottle is preferably constructed with the moat (34) inclined and having the opening (36) at a lower portion of the moat. In one embodiment of the container (20), retainers (42) on the dispensing spout (32) secure retainers (44) on the measuring cup (24) to secure the measuring cup with round sealing surfaces (52,54) on the bottle and the measuring cup sealing about the moat (34).

Abstract: Dispensing containers are described in which a metering chamber for the contents of a fluid container is mounted in the neck of the container. Openings intermediate the height of the chamber allow it to be put in communication with the container interior by a rotary movement, e.g. applied to an external closure cap. When the closure cap is rotated to open the chamber to the container interior it also adopts a sealing position preventing the escape of any of the contents. The space in the chamber above the apertures is greater than that below. Sufficient fluid can be admitted to the chamber by inverting the container, therefore, to ensure that the lower space is completely filled when the container is again turned upright. Reverse rotation closes the openings to isolate the metered fluid from the main volume of the container and can also open the chamber to the exterior to allow the metered quantity to be dispensed.

Abstract: This invention relates to a closure device for a container and, more particularly, to a three-piece assembly, including a measuring cup and a pouring spout, as well as a container. The measuring cup is provided with an internally threaded skirt for engaging the threaded neck of the container for squeezing the neck with a half-round bead on the member having the pouring spout to form a tight seal between the pouring spout and the measuring cup. The member including the pouring spout includes a truncated conical body tightly press fitted into the neck of the container and is provided with other sealing means between the pouring spout and the container.

Abstract: In this assembly the spout attachment has at the top of its vertical wall a flat annular wiper flange having an upstanding sealing bead. The flange is clamped between the top of the mouth of the bottle and the undersurface of the closure so that the bead seals against the closure and no liner is necessary in the closure. To keep the attachment from uncontrolled rotation as the closure is screwed on and off, the vertical wall of the attachment is provided with a pair of horizontally aligned closely spaced lugs which straddle an inward protrusion in the mouth of the bottle.

Abstract: A container for liquid is disclosed, wherein the container has an improved self draining means featuring a radially inclined ramp which slopes downward from the container pouring spout in the radially outward direction. Beneath the drain ramp is an annular channel which receives liquids gravity draining from any azimuthal location on the ramp, and routes the liquids to a drain hole, returning the liquids to the container reservoir. One or more projections may be disposed within the annular channel to partially block it. This arrangement prevents any plastic shavings or other debris within the channel from migrating or being washed by the draining liquid to a location visible to the user or to the drain hole where such debris may contaminate the contents of the container.

Abstract: A dripless closure assembly for a container comprising a body seated in the neck of the container and which has a pouring spout. A measuring cup which also functions as a cap is disposed over the pouring spout and has a first threaded outwardly disposed skirt for threaded engagement with the neck of the container. A second skirt inward of the outer skirt and extending into the body is provided for eliminating dripping on the threads.

Abstract: Presented is a method and apparatus for precision control of work fluids in a squeezable tube that has no surge of work material during the shut off closing of the tube which is accomplished by a compensator moving simultaneously and oppositely to the shut off member movement, each of the compensator and the shut off member having different stroke lengths and tube engagable surface areas which effectively keep the internal volume of the tube the same. The method and apparatus are useful standing alone, in coordination with precision positive displacement pumping under computer control which is also presented, and as a part of sequential or simultaneous movement of a valve/pump dispensing head coordinated with a stationary or movable work piece to provide exceedingly fine control dispensing. Suckback between dispensing shots is coordinated with shut off and movements of inlet, outlet and dispensing members to afford operator programmable dispensing with precision and without drip.

Abstract: A device for dispensing molten thermoplastic material comprising a barrel member having an internal melting chamber communicating with an outlet opening through a nozzle, and a sleeve having one end secured at the barrel member and a through opening communicating with the end of the melting chamber opposite the outlet opening. The sleeve is adapted to receive a rod of solid thermoplastic material with one end portion of the rod in the melting chamber and the rod projecting through the sleeve along a predetermined path. The barrel member is heated to melt the end portion of the rod therein, and a drive adapted to be switched between a deactivated state and an activated state is provided for driving the rod of solid thermoplastic material into the melting chamber at a predetermined rate to expel molten thermoplastic material through the nozzle.

Abstract: A liquid containing and dispensing package comprising a hollow plastic container having a neck comprising an upwardly extending integral dispensing spout, an integral web extending radially outwardly from the lower end of the dispensing spout and a cylindrical wall spaced radially outwardly of the spout and encircling the spout. The cylindrical wall has an internal thread, a closure having a base wall and peripheral wall with an external thread applied to the container. The closure includes an annular flexible sealing ring that engages the inner surface of the cylindrical wall and flexes upwardly to provide a seal. A sealing ring extends radially outwardly intermediate the peripheral wall and engages the top of the cylindrical wall when the closure is threaded onto container.

Abstract: A dispensing package is provided that includes a liquid container and a drainback spout fitment fitted within a dispensing opening in a finish at the upper end thereof. A measuring cup is threadedly engageable with the fitment and finish to enable closing off of the container. The fitment includes a frustoconical downwardly depending side wall surrounding and spaced from the spout. A drainback channel between the spout and side wall drains back drips to a drain opening and thence into the liquid container. An interlock and centering means is provided between the finish and fitment to center the fitment with respect to the finish to assist the sealing system in preventing leaks as well as to prevent rotation of the fitment when the cup is rotated out of engagement for removal.

Abstract: A developing device for a copier has a cartridge detachably attached to its housing. An outlet and an inlet provided with lids connect the interiors of the cartridge and the housing but developing agent can be supplied from the cartridge to the housing only if the cartridge is properly attached to the housing because the outlet lid is otherwise not opened. When developing agent is deteriorated and to be discarded for replacement, a transporting unit is activated and deteriorated developing agent is collected into the cartridge through its inlet. A sensor for detecting toner concentration inside the housing controls the operation of the transporting unit. Mechanisms are also provided to warn the user if a cartridge which has already been used is inadvertently set.

Abstract: This is an exact volume dispensing container which comprises a primary storage container for storing liquid and a measuring head having a pour-out spout disposed above the primary storage container, a neck disposed between the primary storage container and the measuring head wherein a modified pour-spout is formed by a barrier molded into one side of the storage container and a drainback hole is interposed through the barrier. When the level of liquid in the measuring head exceeds a preselected amount, the excess liquid pours back into the storage container through the drainback hole, leaving the exact amount of liquid to be dispensed from the measuring head.

Abstract: A self draining container is disclosed. The container has a body and an upper integral pouring spout. The upper part of the container body and the spout define a generally funnel shaped section. A ring member is attached to and surrounds the pouring spout. The ring member and the pouring spout define a flow back chamber. An opening extends between the flow back chamber and the container body. A separable cap is removably mounted over the pouring spout.

Abstract: A dispensing and closing package for liquid products has a cap which also serves as a measuring cup. The cap fits on the outer circumference of a dispensing cylinder. A passageway is provided adjacent to a common point between the cap and the dispensing cylinder running between the container body and the inside of the cap. Residual liquid products adherent in the inside of the cap returns into the container body through the passageway.

Abstract: Anti-spill apparatus including a liquid recovery system, for use with a liquid pumping system, which recovers and returns to a liquid container, any liquid which is inadvertently emitted by the liquid pumping system. The apparatus contemplates a pump, having a feeder hose received in a liquid containing barrel, for conveying chemicals and the like contained in the barrel, to a remote location and a new mounting system for mounting the pump on the barrell. The recovery system includes a splash guard which encases a portion of the pump, a recovery hose coupled between a downstream portion of the feeder hose and the splash guard, and a drain spout which receives the liquid from the splash guard and conveys it to the liquid container.

Abstract: A conductive liquid is dosed with a vessel having an upper rim and with a dip tube having a lower end projecting down into the vessel below the rim thereof. The vessel is periodically overfilled with the liquid such that periodically the liquid overflows the rim. Immediately after each overfilling of the vessel, the liquid is aspirated from the vessel through the dip tube until the lower end of the dip tube is above the surface of the liquid in the vessel. The resistance between the dip tube and the liquid in the vessel is continuously monitored and an error signal is generated either when the detected resistance falls below a predetermined threshold corresponding generally to that of the liquid after the overfilling but before the aspirating or when the detected resistance is substantially above the threshold after the aspirating and before the next overfilling. The flow of liquid out of the vessel is impeded except over the rim and through the dip tube at least during the aspirating step.

Abstract: A metering pouring stopper comprising two elements of a moldable or injectable material which is at least somewhat flexible. One of these elements comprises a pouring lip which can be fastened to the free end to the threaded neck of the container, while the other element comprises a metering chamber and a threaded skirt to be screwed onto the threaded neck of the container. Since the threads of the necks of containers always have a predetermined, constant angular orientation, the two elements of the stop that can fit into one another have assembly detachable means which make it possible to assemble them temporarily before they are placed onto the container.