Abstract: Pressure relief blow out plugs for a container are disclosed as well as methods of using the same. One disclosed method involves providing a glass container that comprises a base and a body extending away from the base. The base includes a wall that defines a pressure relief passage. The method also involves inserting a pressure relief blow out into the pressure relief passage to seal the passage. The plug comprises a first inboard flange extending radially outwardly from the plug body, a stem, and a second inboard flange extending radially outwardly from the plug body and being spaced apart from the first inboard flange by a stem. The first inboard flange includes a first outboard sealing surface that provides an axial seal against the wall of the base of the glass container, and the second inboard flange including a circumferentially interrupted outboard facing retention portion the defines vent gaps.

Abstract: A container including a storage chamber within which is located at least one concentrated product housed; a mixing chamber coupled to the storage chamber and capable of storing a pump dispenser assembly, wherein the storage chamber is isolated from the mixing chamber. Also included is a reversible middle section capable of connecting the pump dispenser at the center opening with the container mouth opening.

Abstract: A bottle teat consisting of a soft elastic material for a drinking bottle, in particular for infants and small children, having: a teat flange, a hollow teat sleeve that projects upward from the teat flange and is connected at its bottom end to the teat flange, a hollow suction part that is connected at its bottom end to the top end of the hollow teat sleeve and projects upward therefrom, a dome-shaped palate-contacting region on a side of the mouthpiece facing the palate, at least one drinking hole in the palate-contacting region that extends from the outside to the inside of the mouthpiece, wherein: an elevated surface that bulges to the outside is on the outside of the palate-contacting region, and the at least one drinking hole is arranged in the elevated surface so that the suction part with the elevated surface can be pressed in a sealing manner against an inwardly bulging sealing surface on the inside of the cap bottom of a cap to cover the bottle teat.

Abstract: A baby bottle device (100) is provided which comprises a container (110) with a container volume (115), a teat (120) with a teat volume (125) and a valve unit (200). The teat comprises a first valve (112) for inletting air into the inside volume of the bottle (100). The inside volume of the bottle corresponds to the volume of the container (110) and the teat volume (125). The valve unit (200) with a second valve (210 230) is arranged outside the teat volume (125). The threshold of the vent unit is lower than the threshold of the first vent (112) in the teat.

Abstract: A pacifier for cooling of oral tissue including: a nipple having an outer shell forming an outer chamber which is configured to retain a first cooling medium having a freezing temperature below 0 degrees Celsius, an inner shell forming an inner chamber positioned inside the outer chamber and which is configured to retain a second cooling medium having a freezing temperature above the freezing point temperature of the first cooling medium to assist in chilling the first cooling medium; a handle coupled to a proximate end of the nipple; and a shield positioned between the handle and the proximate end of the nipple.

Abstract: A disposable receptacle useful with an infant feeding system, including a pliable pouch. The pliable pouch may have a single compartment, or a pair of compartments wherein a first compartment is filled with powdered formula, and a second compartment is filled with distilled water. When compartmentalized, the compartments are separated by a burst seal designed to fail upon subjection to pressure of between about 1-3 lbs. The receptacles include a cylindrical fitment with a one-way valve removably positioned therewithin. A top seal of the pliable pouch is secured about the body of the fitment. The receptacles may be used with an infant feeding system having a support disc with an aperture to receive and secure the fitment, and a nipple having an internal chamber sized and configured to tightly and removably receive a portion of the fitment. The infant feeding system may optionally include a bottle and a securing ring.

Abstract: A bottom-fill hydration bottle includes a main body having a valve assembly positioned along the bottom end. The valve assembly including an inlet opening, a valve, an outlet opening and a deflector. The deflector includes an input opening and at least one aperture that functions to discharge the received fluid in a direction that is different than the outlet opening of the valve. The hydration bottle includes a cap that is selectively coupled to the top of the main body. The cap includes a central spout having a bottom opening and an upper opening. A diffuser is positioned along the bottom opening of the spout. The diffuser including an output opening and at least one aperture that functions to receive fluid from the main body at an angle that is different from the bottom end of the spout.

Abstract: A nursing bottle having an air returning function comprises a bottle body, a fixing cover, a nipple, a ventilation component, an air conduit, an elastic one-way valve set at a second opening of the air conduit and is located at the interior of the air conduit, a mounting part located on the second opening of the air conduit to secure the elastic one-way valve. The ventilation component, the air conduit, the elastic one-way valve and the mounting part form a gas returning device and are located on the interior of the bottle. The bottle reduces the contacting area between the air and the milk, lowering the amount of vitamin loss. The phenomenon of vomiting milk, choking and flatulence will be omitted since no air bubble is generated.

Abstract: A pressure relief blow-out plug includes a body including an inboard end and an outboard end, and an inboard flange extending radially outwardly from the inboard end of the body. A package includes a container including a wall having interior and exterior surfaces, and a pressure relief passage extending along a longitudinal passage axis and having a circumferential passage surface extending through the wall between the interior and exterior surfaces, wherein the pressure relief blow-out plug is carried in the pressure relief passage.

Abstract: A closure can close an outlet of a vessel. The vessel outlet can comprise a tubular cavity with an interior surface. The closure can comprise a male portion comprising a distal undersized portion, a proximal oversized portion, and a taper between the undersized and oversized portion. The male portion can be inserted in the vessel outlet, undersized portion first. Interference between the inner diameter of the vessel outlet and the outer diameter of male portion can occur when the male portion is sufficiently inserted. The interference can cause the undersized portion to flare out and engage the interior surface of the tubular cavity, thereby providing a seal.

Abstract: A bottle assembly is provided including a bottle having an end portion with a first detent formation, and a collar having a second complementary detent formation. The collar is arranged to snap fit to the end portion by engagement of the detent formations by application of force only in a direction towards the bottle. In addition, a valve assembly for use with a drinking vessel is provided including a base member and a sealing member. The sealing member is moveable, dependent on a pressure difference across it, between a sealed position, wherein the sealing member is sealed against the base member, and an unsealed position, wherein the sealing member is unsealed from the base member. One or more channels are formed between the base member and the sealing member and are arranged to allow air to enter the drinking vessel when the sealing member is in the unsealed position.

Abstract: A bottle assembly includes a container having an open end, a closed end, a base portion, and a neck together defining a liquid chamber within the container. The neck has a rim defining the open end of the container. The bottle assembly also includes a collar assembly generally defining a closure for the container. The collar assembly is configured for releasable engagement with the neck of the container over the open end thereof. The collar assembly includes a collar and a nipple. The bottle assembly further includes a cap including a closed end, an open end, and a side wall extending between the closed end and the open end together defining an interior. The cap is configured for releasable engagement with the collar assembly such that the nipple is received within the interior of the cap. In some embodiments, the bottle assembly includes a vent assembly positionable at least in part on the rim of the container to permit venting of the container during use.

Abstract: An expandable container system including a container, an expandable nipple and a one-way valve. The expandable nipple is attached to the first end of the container and the valve is attached to a second end of the container. A counteracting bias force is generated within the container and a first fluid is drawn in through the valve by extending the expandable nipple. When the expandable nipple is released, the expandable nipple is biased back to an unextended state, and an increase in pressure created by the counteracting bias force induces a second fluid to flow out of an outlet in the expandable nipple.

Abstract: Briefly, a feeding device embodying features of the present invention approximately conforms to the shape of a human breast and includes at least one housing for storing fluid coupled to a dispensing portion having an apertured dispensing tip for delivering the fluid to an infant.

Abstract: According to a first embodiment, a feeding bottle comprises a vessel, collar, and nipple. The nipple comprises a base portion, a teat portion, an areola portion allowing movement of the teat portion towards and away from the base portion. According to a second embodiment, a feeding bottle comprises a vessel, collar, nipple and handle portion removeably secured to the vessel by the collar. The invention includes a flexible region or regions to provide a more natural feeding by closely mimicking the human breast.

Abstract: A seal indication mechanism for a container assembly having a container and a lid is provided. The seal indication mechanism has a portion on the container and a portion on the lid that interface to indicate to a user that a seal has been achieved between the container and the lid. The seal indication mechanism provides an audible, tactile and visual indication to the user that the lid and container are sealed. The seal indication mechanism functions to indicate a range of sealed relative positions between the container and the lid throughout the usable life of the container assembly.

Abstract: The present invention relates to a preservative-free, aqueous solution in the form of eye drops packed in a container that ensures stability of the product, ideal eye drop volume and reduced drop volume variability and provides efficient dispensing.

Abstract: According to the invention, in order to create a container (1) for receiving beverages, in particular a drinks container or drinks cup, at least comprising a base (2) and a circumferential wall (3) projecting approximately perpendicularly from the base (2), which can be produced particularly inexpensively, can be filled within a minimum time and can be securely sealed after the filling, the wall (3) has openings (4) via which the container (1) can be filled with a beverage, wherein the openings (4) can be closed after the filling via a sealing means that is/can be applied from outside to the outer surface of the wall (3). The invention also relates to a device that can fill a container of this type with a corresponding beverage, such as beer or a soft drink, within a minimum time, said device being simple to operate, inexpensive and simple to produce and having a long service life.

Abstract: Oral devices such as a pacifier, bottle cap, teething tools and toys, and methods for using the same are provided. An oral device includes a bulb portion configured to be disposed inside a mouth of a user and a wider neck portion coupled distally to the bulb portion and configured to be held by user's lips. The neck portion is configured such that, when it is sucked on by the user, the neck portion moves in the lateral direction transverse to a longitudinal axis of the oral device from a first, unexpanded configuration to a second, expanded configuration such that a lateral contact area of the neck portion with the user's lips increases. The oral device can include one or more expansion accommodation features that facilitate expansion and retraction of the neck portion.

Abstract: Apparatus and methods provide for a feeding bottle. According to embodiments described herein, a feeding bottle may include a container and a one-piece nipple assembly. The one-piece nipple assembly may include a ring substrate encompassed by a dome overmold with a nipple head. The nipple head and dome overmold may include a texture gradient and variable wall thickness to simulate a human breast. The interior of the nipple assembly 104 may additionally include an internal flow assist mechanism for assisting the fluid flow while the nipple head is bitten or pulled.

Abstract: The present invention relates to a feeding bottle device (100) comprising at least one air vent valve (140) for allowing the passage of air from outside the feeding bottle device (100) to within a container volume (125) when the feeding bottle device (100) is assembled, a confined volume forming component (150) for defining a confined volume (155) within a container volume (125) of a container component (120) of the feeding bottle device (100), wherein the confined volume (155) is configured to provide a controlled opening (165) for air entering through the air vent valve (140) into the container volume (125), and an optional duct forming component (170) for forming a guidance duct (175) from the at least one air vent valve (140) to the confined volume (155). The feeding bottle device (100) reduces the risk of colic-like symptoms for an infant.

Abstract: A delaminated container excellent in productivity is provided. A delaminated container that includes: a container body having an outer shell and an inner bag, the inner bag delamination from the outer shell with a decrease in contents to be shrunk; and a valve member regulating entrance and exit of air between an external space of the container body and an intermediate space between the outer shell and the inner bag. The container body includes a storage portion to store the contents and a mouth to discharge the contents from the storage portion, the outer shell includes a fresh air inlet communicating the intermediate space with the external space in the storage portion, the valve member includes a tube having a cavity provided to communicate the external space with the intermediate space and a mobile part movably stored in the cavity.

Abstract: Briefly, a feeding device embodying features of the present invention approximately conforms to the shape of a human breast and includes at least one housing for storing fluid coupled to a dispensing portion having an apertured dispensing tip for delivering the fluid to an infant.

Abstract: A reusable food pouch having a removably insertable one-way valve is disclosed herein. The one-way valve may be used with the reusable food pouch if food product having a water-like consistency is being stored in the reusable food pouch to prevent spills if the reusable food pouch is inadvertently laid on its side. Conversely, the one-way valve may be removed from the reusable food pouch if the food product has a consistency more like thick oatmeal and/or applesauce to allow for free flow of the food product through a spout of the reusable food pouch.

Abstract: A vent prevents a vacuum from forming within an inverted container of liquid when the liquid is dispensed. The vent is a double vent, formed of a vent tube, upon which a reservoir and its integral vent tube locate, the reservoir securing with the vent tube that extends through the reservoir upper surface, to achieve the double venting of the interior of the container. The container is a nursing bottle, with a collar and nipple applied to the top, and the vent tube being integrally formed extending downwardly from the collar, and securing the reservoir and its integral tube thereon, when assembled for usage. The bottle may be formed of a transparent material, tinted to one coloration, while the reservoir and its reservoir tube may be tinted to a different coloration, which when they are assembled, exhibits a third coloration for the reservoir tube when viewed from exteriorly of the tinted nursing bottle during its application.

Abstract: A feeding teat (40) constructed and arranged to be used on a bottle (52) that holds and dispenses a liquid to be fed to an infant or child. The teat (40) has a nipple portion (70) with an orifice (71) at a terminal end, and defines an interior profile shaped by intersecting reverse curves (75, 76) that generally decrease the interior diameter of the nipple portion (70) toward the orifice (71), so as to channel fluid flow into the orifice (112). There is a flange portion (66) constructed and arranged to be releasably coupled to the bottle (52) such that the liquid can flow from the bottle (52) into the teat (40), and a convexly shaped intermediate portion (80) integrally connecting the nipple portion (70) to the flange portion (66). A pressure relief valve (60) built into the teat (40) is constructed and arranged to admit air into the interior of at least one of the teat (40) and the bottle (52).

Abstract: There is disclosed a drinking receptacle comprising: a container for containing a fluid for drinking; and an outlet member having an outlet through which the fluid is delivered under a pressure supplied by a user of the receptacle and a collar portion that attaches to an opening of the container such that an undersurface of the collar portion abuts with an upper surface of the opening of the container to form a substantially sealed engagement between the outlet member and the container; wherein either the undersurface of the collar portion or the upper surface of the opening of the container has at least one vent formed therein, the at least one vent being configured such that when said pressure is applied to the outlet member the at least one vent member permits the controlled ingress of air into the container to facilitate flow of fluid from the outlet, and when said pressure is removed the at least one vent member substantially prevents the ingress of air into the container to facilitate a controlled vacuu

Abstract: A reusable food pouch having a removably insertable one-way valve is disclosed herein. The one-way valve may be used with the reusable food pouch if food product having a water-like consistency is being stored in the reusable food pouch to prevent spills if the reusable food pouch is inadvertently laid on its side. Conversely, the one-way valve may be removed from the reusable food pouch if the food product has a consistency more like thick oatmeal and/or applesauce to allow for free flow of the food product through a spout of the reusable food pouch.

Abstract: To provide an infant drinking device with a more reliable aerator, the infant drinking device comprises a teat, a reservoir for holding a liquid, a connector for detachably connecting the reservoir to the teat, and an aerator. The aerator (e.g., a duckbill valve) includes a deformable opening (e.g., a slit) whereby internal/external pressure differential during use of the device is reduced in an open position of the opening by allowing air to enter through the opening into the reservoir and such that leakage of fluid from an inside of the drinking device to an outside of the drinking device is hindered in a closed position of the opening. During assembly of the teat, connector and reservoir, a minimally defined deformation of the opening of the aerator is enforced by at least one of a geometrical property and a material property of the teat or the connector.

Abstract: An in-bottle aerator for mixing the oxygen in the air with wine as the wine is poured from its bottle. The aerator has at least one air ingress channel extending from one end of the aerator to the other, allowing air into the bottle to displace wine exiting the bottle. Air mixing channels draw air from outside the bottle and direct that air to lateral channels that intersect a central flow channel extending from one end of the bottle to another. The air mixing and air ingress channels are preferably arranged to allow the user to pour and aerate wine at the same time and with the bottle in any orientation about its axis. The aerator may be a separately formed component that can be inserted into the bottle by the bottle manufacturer, by a wine bottler or by an enduser. Alternatively, the aerator may be wholly or partly formed as part of the neck of the bottle. A completely and integrally formed aerator may be formed as a part of a plastic wine bottle.

Abstract: An infant feeding system. An infant feeding system comprising a bottle with a closed first end and an second end comprising an aperture that is configured to receive a liquid or semi-liquid substance into the bottle, a nipple comprising a vent system, a ring configured to enable the nipple to couple to the second end of the bottle, and a cap configured to couple to the second end of the ring and configured to couple to the first end of the bottle.

Abstract: The present invention relates to a teat for a feeding bottle. The teat has an outer wall (18) and a plurality of recesses (25) formed in an outer wall (18). The plurality of recesses (25) extend in a circumferential arrangement around a longitudinal axis of the teat. The present invention also relates to a teat with an outer wall (5, 46, 66). The outer wall has a region of reduced wall thickness (7, 47, 67, 84) extending in a circumferential band around a longitudinal axis of the teat.

Abstract: A silicone baby bottle which is made of silicone which does not generate environmental hormones is disclosed. The silicone baby bottle allows an infant or young child to be safely fed. The silicon baby bottle includes a body part, a nipple, and a coupling member composed of a first coupling ring and a second coupling ring which are screwed with each other to be coupled. The body part and nipple are made of silicone which is a soft material and the coupling member is made of a rigid material so that a coupled structure of the body part and nipple can be tightly sealed. Since only the body part and nipple made of silicone are allowed to come into contact with infant formula and infant's mouth, the infant is not exposed to environmental hormones attributable to synthetic resin.

Abstract: A nipple for use with a bottle assembly includes a base portion that has a bottom surface, a vent region that is coupled to and extends upward from the base portion of the nipple, and a nipple portion that extends upward from the vent region. The nipple portion includes an outlet opening therein, and the vent region includes a vent channel and an air valve substantially aligned with the vent channel.

Abstract: A liquid tank capable of preventing a gas passage from being clogged and a dental device including this liquid tank are provided. A liquid tank having an accommodation space in which a liquid L to be supplied to outside is accommodated includes a tank body having a mouth part with an opening, a cap mounted on the mouth part to close the opening, a liquid passage through which the liquid L in the liquid tank flows toward outside, a gas passage having a gap between the mouth part and the cap and a path communicatively connecting to the gap and the accommodation space, a liquid flow valve provided on the liquid passage to allow or inhibit a flow of the liquid L to outside, and an aeration valve provided on the gas passage to compensate for a negative pressure occurring in the accommodation space.

Abstract: The present invention relates to a venting baby bottle that includes an outer container, and an inner container, adapted to fit within the outer container, wherein the inner container has a base, a neck, and a vent tube projecting upwardly into the inner container. The baby bottle of the present invention also includes a gasket having a gasket base adapted to fit the neck of the inner container, one or more gasket channels, and a gasket lip. A reservoir is defined between the wall of the outer container, the gasket lip, and the gasket base. The venting baby bottle of the present invention has an air passage, when inverted and filled with liquid, from a point outside the baby bottle to a point inside the inner container.

Abstract: A cap and rigid bottle converts an expressed milk syringe from an open system to a closed system. The cap is in fluid communication between a breast pump and breast cup. The rigid bottle is attached to the bottom of the cap and the syringe is captured inside the bottom under the cap in a sealed environment. The pump provides varying positive vacuum to the cap and through the cap to the breast cup. Milk is drawn by the vacuum into the cap and flows by gravity down into the syringe. A passage between the interior of the syringe and the interior of the bottle equalizes pressure and allows the syringe to fill while maintaining a closed system, allowing a piston in the syringe to remain stationary. The closed system protects a mother's milk being pumped into a milk collecting syringe from air born contaminants.

Abstract: A non-spill container assembly having a container, a collar and an annular seal from which drinking can occur at any location around a rim of the container assembly. The collar has an internal frustoconical shape wall with a circular upper end that extends downward and inwardly into a closed lower end. The closed lower end has a projection that extends outward from its center. The collar includes a support surface arranged along an inner surface of an upper edge of the circular upper end and a fastener assembly disposed adjacent to a bottom of the collar provided to securely fasten to a container. A plurality of passages are radially disposed around the projection in the internal frustoconical shape wall to channel a fluid. A plurality of radial protrusions disposed radially adjacent to the support surface defining various channels along the support surface.

Abstract: A feeding bottle preventing a nipple from falling out and with an air return function including a nipple body and a bottle body, the feeding bottle further includes an air inlet plate, a capping and a fitting ring, and the air inlet plate is fixed between the nipple body and the bottle body by the capping. The present application can prevent the nipple from falling out, prevent leakage caused by drawing out of the nipple when baby is sucking and even falling out, and achieve the automatic air return.

Abstract: A teat unit has a teat, a securing device for securing the teat on a liquid container, and an air valve, the securing device having a first securing part and a second securing part. The air valve has a first valve part, which is arranged in the first securing part, and a second valve part, which is arranged in the first or in the second securing part. The air valve opens and closes with respect to the second securing part. The valve is preferably a diaphragm valve, and the first valve part is a valve diaphragm. This teat unit functions very reliably even at very small pressure differences between the bottle and the environment. Moreover, the range of function of the various teat units of the same type is relatively narrow, such that different teat units function very similarly and the air valves are actuated at similar pressure differences.

Abstract: Colic can be a particular problem for babies feeding on liquid feed from a feeder bottle. The colic can be formed by air from various sources in the liquid feed. Typically, there is less air in the liquid feed towards the bottom of the liquid feed container in the feeding position than towards the top of the liquid feed. The present invention provides apparatus for drawing milk from the bottom of the feeding apparatus chamber when the feeder is held in the operating position. This is achieved by positioning a flow restrictor for allowing the passage of liquid feed from a main chamber into a flexible feeding teat at a suitable location. The present invention also provides a resiliently-biased cartridge to assist in priming and/or draining of the flexible feeding teat. The present invention also provides a construction in which the flow restrictor is always provided in the correct position regardless of the relative angular orientation of the elements of the feeder.

Abstract: A leak resistant drinking cup has a container for holding liquid and a lid assembly selectively attachable to the container. A diaphragm of the cup includes a liquid discharge member and a sealing member adapted for movement between a sealed position in which the sealing member blocks the flow of liquid from the container to the liquid discharge member, and an unsealed position in which liquid is permitted to flow from the container to the liquid discharge member. The liquid discharge member and sealing member are formed as one-piece.

Abstract: Briefly, a feeding device embodying features of the present invention approximately conforms to the shape of a human breast and includes at least one housing for storing fluid coupled to a dispensing portion having an apertured dispensing tip for delivering the fluid to an infant.

Abstract: An insert which is useable with a baby bottle, a baby bottle including an insert, and a method of feeding an infant that serves to pace the infant's feeding rhythm. Generally, these devices and methods will be of use for a preterm infant, but that is by no means limiting because full term infants could also benefit from these devices and methods. The device generally cues the infant to swallow and breathe after each 1-4 sucks by stopping the flow of the fluid from the bottle after the infant has sucked sufficiently. Once the baby breathes, the bottle resets for the next repetition.

Abstract: The present invention relates to a venting baby bottle that includes an outer container, and an inner container, adapted to fit within the outer container, wherein the inner container has a base, a neck, and a vent tube projecting upwardly into the inner container. The baby bottle of the present invention also includes a gasket having a gasket base adapted to fit the neck of the inner container, one or more gasket channels, and a gasket lip. A reservoir is defined between the wall of the outer container, the gasket lip, and the gasket base. The venting baby bottle of the present invention has an air passage, when inverted and filled with liquid, from a point outside the baby bottle to a point inside the inner container.

Abstract: According to a first embodiment, a feeding bottle comprises a vessel, collar, and nipple. The nipple comprises a base portion, a teat portion, an areola portion allowing movement of the teat portion towards and away from the base portion. According to a second embodiment, a feeding bottle comprises a vessel, collar, nipple and handle portion removeably secured to the vessel by the collar. The invention includes a flexible region or regions to provide a more natural feeding by closely mimicking the human breast.

Abstract: An airless baby bottle includes: a) an elongated shaft having an open top and an open bottom and having a constant internal cross-section, and having attachment means for securing a nipple piece fastening collar thereto; b) a nipple piece fastening collar; c) a nipple piece; d) a piston to sealably and moveably fit within the elongated shaft, the piston having external sides with a peripheral upper blade and a peripheral lower blade, each of said peripheral upper blade peripheral lower blade having a plurality of peripheral ridges running perpendicular to the elongated shaft elongation direction.

Abstract: A pacifier food/liquid/medicine/vitamin delivery system for toddlers and infants. The system delivers contents on the go thus eliminating the need for carrying utensils and other content containers. The pacifier in front will deliver food/liquid/medicine/vitamins in mouth and a pouch attached in the back will carry the contents. When the pre-packaged content pouch/container is attached at the end of the pacifier by twisting or snapping, the penetrating edges break the seal thus allow the flow of contents in the pacifier and into the mouth. The pacifier portion comprises of elongated pieces in the bottom to apply pressure to puncture protective seal from the content pouch/container to allow contents to move in the pacifier portion. It also has a seal and a hole to relieve air to prevent colic.

Abstract: To provide a drinking device with a more reliable aerator the invention relates to an infant drinking device (1), comprising a teat (10),a reservoir(60) for holding a liquid, the reservoir (60) being detachably connected to the teat (10) by a connector (50) of the infant drinking device (1), and an aerator (31), such as a duckbill valve, the aerator thereto comprising a deformable opening, for example a slit, such that an internal/external pressure differential during use of the device (1) is reduced in an open position of the opening (35)by allowing air to enter through the opening (35) into the reservoir (60) and such that leakage of fluid from an inside of the drinking device (1) to an outside of the drinking device (1) is hindered in a closed position of the opening (35), wherein the aerator (31) is included in the connector (50) or the teat (10), wherein during assembly of the teat (10), connector (50) and reservoir (60), a minimally defined deformation of the opening (35) of the aerator (31) is enforced

Abstract: A drinking cup that has a lid with a receiving portion is provided. The receiving portion may have a flow control engagement surface. A flow control element that may be configured for releasable attachment with the lid may be included and can have an attachment portion. The attachment portion may have a lid engagement surface. When the flow control element and the lid are attached, the flow control engagement surface engages the lid engagement surface. At least one of the flow control engagement surface and the lid engagement surface may have a concave shape.