Abstract: A nipple comprising a teat, a mounting flange coupled to the teat defining a valve cavity therein, and a valve positioned with in the valve cavity, in which the valve is configured to equalize differing pressures. A system and method comprising a container and a nipple configured to be selectively and sealingly coupled to the container, in which the nipple further comprises a valve and valve cavity configured to equalize the pressure differences between the ambient environment and interior of the container, in which the valve cavity has a minimum volumetric capacity of 0.9 cubic centimeters, and in which the valve cavity has a stepped triangular cross-section positioned at the bottom of the valve having a minimum wall thickness of 0.8 millimeters and a minimum height of 3.0 millimeters.

Abstract: A teat for connection to a receiving unit of a drink container has a main body and, adjoining the main body and tapered relative to the main body, a mouthpiece with at least one suction opening. The teat has a first connector element for connection to the receiving unit, a second connector element for connection to the receiving unit, and a suction channel. The suction channel extends within the mouthpiece, extends and opens via a first end into the suction opening and is directed via a second end towards the main body. This second end forms the first connector element for leaktight connection to the receiving unit. The main body is designed such that it is adapted to be turned back towards the suction opening of the mouthpiece. This teat is adapted to be connected to the feeding bottle in a simple and hygienic manner and is easy to clean.

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 having a main body with an outer rim and having a nipple with at least one liquid-release orifice and nipple having a plurality of accordion segments so as to create a rest short nipple position and so as to permit a stressed elongated nipple position when a baby sucks on it; d) a piston to sealably and moveably fit within the elongated shaft. In this version, when the baby sucks the milk, the nipple extends and the piston moves up with the decreasing milk supply. In other versions, the piston has a nipple connecting tube and travels down as the milk is consumed.

Abstract: A nipple for a bottle assembly includes a flow control valve configured to open when subjected to a first vacuum pressure and to close when subjected to a second vacuum pressure that is substantially the same as or less than the first vacuum pressure. The flow control valve is configured to maintain the flow rate through the nipple between approximately 7 milliliters per minute and approximately 15 milliliters per minute.

Abstract: A feeding assembly for a baby bottle includes a bottom nipple secured at the top of a bottle base, and having an outlet for providing a maximum flow rate of a feeding liquid. A middle nipple may be provided over the bottom nipple including a plurality of selectable setting outlets, each of which corresponds to a different flow rate setting. The bottle is adjustable, and may be adjusted in use, so that a setting outlet corresponding to a single flow rate setting at a time may receive liquid from the first nipple. In this manner, the maximum flow from the first nipple may be reduced by a setting outlet corresponding to one of the flow rate settings. A top nipple may be provided over the second nipple from which an infant may feed.

Abstract: A pre-filled disposable container has a rigid tubular body, a flexible bag positioned within the rigid tubular body, a cap, and a base sealing element. The rigid tubular body has an open-ended top and an open-ended bottom. The flexible bag has a top portion with a dispensing aperture, a bottom portion, and an outwardly extending annular flange. An annular retaining ring is adapted to lock the outwardly extending annular flange of the flexible bag against a top rim of the rigid tubular body. The cap is adapted to fit over the top portion of the flexible bag. A tear strip removably connects the cap and the annular retaining ring. The base sealing element is adapted to engage the open-ended bottom of the rigid tubular body to seal a vacuum aperture.

Abstract: A nursing system includes a fluid delivery module mounted to a portion of a human body. The fluid delivery module is coupled to a fluid source via a channel. A feeding recipient latches-on to a portion of the delivery module to draw fluid from the fluid source, thereby simulating conventional breastfeeding.

Abstract: A leakproof bottle for feeding a child includes a first external thread around a bottle opening, and a lower closure ring having a first internal thread, which is screwed onto the first external thread and has at least one first throughflow hole. An upper closure ring has a second external thread on which the lower closure ring sits in a sealing manner and which has at least one second throughflow hole which, by rotation of the upper closure ring relative to the lower closure ring, can be brought into coinciding and non-coinciding positions relative to the first throughflow hole. Locking elements can rotate the lower closure ring and upper closure ring relative to each other and releasable lock them, with a drinking teat and a screw ring having a second internal thread, which is screwed onto the second external thread of the upper closure ring, releasably securing a lower edge region of the drinking teat to upper closure ring.

Abstract: A bottle has a closed bottom, an open top and a peripheral cylindrical side wall. A nipple has a lower section in the shape of a truncated hemisphere, an intermediate section in the shape of a cylindrical, and an upper section in the shape of a hemisphere. The nipple has a hole, an interior surface and an exterior surface. The exterior surface includes a plurality of spaced hemispherically shaped projections including a plurality lower projections on the lower portion, a plurality of upper projections on the upper portion, and a plurality of intermediate projections on the intermediate portion. An adaptor removably couples the nipple to the bottle.

Abstract: A fully and continuously vented drinking cup or container for infants and children, which consists of a vessel or container for containing a liquid or formula, having a resilient spout which rests upon its uppermost edge. The interior aspects of the feeding spout, and the feeding diaphragm, are all molded so as to arrange the diaphragm slit, or opening through which the liquid flows, in a position that will be vertically aligned between the lips of the infant feeding, to thereby allow the infant to open the spout and allow the liquid to flow, just as if the child is drinking from a cup. The diaphragm may be shaped concavely, with respect to the structure of the feeding spout.

Abstract: An improved drinking container for soft drinks, flavored drinks as well as other similar nutritional and energy supplement drink products which allow the end user to control the amount of flavor, mix, nutritional or energy supplement or any other additive added to the liquid drink product. The drinking container and method associated therewith permits an end user of the drinking container to controllably inject an additive into the liquid drink product to attain a desired ratio of additive in the drink product via a dispenser having measurement units marked or formed thereon to provide controlled amounts of the additive to the main liquid drink product such as water or carbonated water for flavoring, calorie control and/or nutritional supplements.

Abstract: A beverage dispenser includes a container defining a container volume, and a substantially spill-proof cap, having a suction portion and an aperture on top of the suction portion, coupled to the container. A valve with a slit is inserted between the container and cap so that the slit is placed beneath the aperture of the cap. A pressure sensitive seal is placed on top of the aperture of the cap, so that a vacuum is created between the cap and the beverage inside the container. The slit is formed so that the beverage will flow through the slit of the valve and thus out of the aperture of the cap only if a suction force is applied on the suction portion of the cap 20.

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: Baby-bottle attachment for holding dry formula separated from water in bottle has a bottom portion with internal bottle-mating threads that mate to a threaded top on a baby bottle. The attachment includes a partition having an aperture and a seal on its upper surface. The bottom portion has channels partially imbedded therein. An upper chamber has external threads that mate with a nipple. The upper chamber has a partially open bottom with an off-center aperture. A seal pad is adhered underneath the at least partially open bottom of the upper chamber. A top member has a depressible release button that extends from the end, and is attached to outer surface near the bottom of the upper chamber.

Abstract: A modular and natural infant feeding container is provided for multiple stages of development. The container includes a rigid cylindrical body, a removable top for securing an open top end of the cylindrical body, and a removable bottom cap for securing an open bottom end of the cylindrical body. The removable top has a dome shaped portion with a ducted nipple. The dome shaped portion has substantially the same outer radius as the cylindrical body. Another removable top may be interchanged with the removable top. The other removable top may include a different nipple, a sippy spout, or a straw passage.

Abstract: A nursing bottle formed of a large volume container, incorporating a vent tube that extends to vent pressure at all times. The nursing bottle may have a cylindrical shape or other configuration that prevents formula placed therein from blocking the vent tube regardless of its angular disposition. The vent tube extends distally from the vent insert, operatively associated with a collar, that holds the vent structures and the nipple to the wide rimmed opening. In addition, the vent tube has a conical shape of decreasing diameter distally toward the center of the bottom to dissipate the pressure that may cause leakage from the bottle. Further, the vent insert has a major and minor seal that prevents leaks out of the collar and onto an infant.

Abstract: A nursery bottle with an automatic shut off mechanism for inhibiting tooth decay. A nipple is attached to a shut off valve, and the shut off valve is attached to a bottle body. The nipple, the bottle body and the shut off valve are in fluid communication with each other. The shut off valve includes a timing mechanism, where the timing mechanism is coupled to a reset actuator that operates the timing mechanism to open the shut off valve for a feeding time period, and where the shut off valve closes to shut off fluid flow into the nipple after the feeding time period expires.

Abstract: A feeding bottle (10) comprises a container (16), a teat (12) and a collar (14) to screw the teat (12) onto and seal the container (16). A vent assembly (18) is mounted between the teat (12) and the container (16) and includes a vent tube (22) passing down to a position close to the base of the container (16) and having a one way valve (34) allowing air to pass into the container (16) on application of suction to the teat (12) but preventing liquid flowing into the vent tube (22), together with a valve flange (36) acting as an anti-choke member.

Abstract: A leak resistant drinking container apparatus includes a container with a bottom wall, a peripheral wall and a top wall. A drinking member is integrally coupled to the container and is fluidly coupled with an interior of the container. The drinking member includes a nipple with a perimeter wall extending away from and being integrally coupled to the container. The nipple includes a distal wall with respect to the container that closes an outer end of the nipple. The distal wall has a plurality of drink apertures therein. The perimeter wall extends around an internal area of the nipple. The container has a plurality of fill apertures therein fluidly coupled to the internal area.

Abstract: An opening-force-maximizing device of an underpressure-activated valve for a drinking container (2). The device includes a partition wall (6, 106, 206) enclosing an outlet opening (4) and being provided with a wall opening (8, 108, 208) in pressure-sealing contact with an axially movable valve sealing member (22, 122, 222) being in position of rest. It also includes a continuous membrane (12, 112, 212) being arranged to the container (2) and about a valve axis (14) through the wall opening (8, 108, 208). The membrane (12, 112, 212) has an axial extent and consists of an attachment end (12a, 112a, 212a) fixedly connected to the partition wall (6, 106, 206), and a movable maneuvering end (12b, 112b, 212b) placed at an axial distance from the attachment end (12a, 112a, 212a). The maneuvering end (12b, 112b, 212b) is arranged in a tensile-force-transmitting manner to said sealing member (22, 122, 222).

Abstract: There is provided a flow control element for use with a drinking cup cap having a first mating member in fluid communication with a spout aperture. The flow control element has a first stack and a first valve. The first stack has an upper portion that can be positioned to be removably sealed in or with the cap. The first valve is defined in a sidewall of the first stack and is configured to provide selective fluid communication with the spout aperture.

Abstract: An artificial baby-feeding nipple including a substantially solid nipple portion with one or more ducts formed therethrough for conveying fluids through the nipple. The nipple is radially compressible so as to prevent passage of fluids through the one or more ducts when so compressed through use of a material having a low durometer material.

Abstract: The invention concerns a device for hermetically and safely closing a feeding bottle to avoid any leakage of the liquid. Said closing device comprises: a rotary closure consisting of an inner ferrule and of an outer ferrule each having an offset opening respectively and, the inner ferrule being lodged in the outer ferrule. An internal thread of the inner ferrule enables the rotary closure to be fixed to the threaded neck of the feeding bottle. A nipple, inserted in a retaining ring comprising an internal thread, is fixed to the threaded neck of the rotary closure. A cap is provided, which enables the nipple to be protected. The inventive device is particularly designed for hermetically closing the feeding bottle.

Abstract: A baby feeding bottle includes a bottle base having a fluid container, and a feeding assembly from which an infant feeds. The feeding assembly includes a bottom nipple secured at the top of the bottle base, and having an outlet for providing a maximum flow rate of a feeding liquid. A middle nipple may be provided over the bottom nipple. The middle nipple may include a plurality of selectable setting outlets, each of which corresponds to a different flow rate setting. The bottle is adjustable so that a setting outlet corresponding to a single flow rate setting at a time may receive liquid from the first nipple. In this manner, the maximum flow from the first nipple may be reduced by a setting outlet corresponding to one of the flow rate settings. In addition, the flow rate setting may be changed in-use or prior to use to accommodate varying flow rates corresponding to each setting.

Abstract: A teat unit for sucking a liquid from a liquid container includes a teat and a flow restrictor with a through-opening. The teat comprises a mouthpiece, with a suction opening, and a main body which is formed integrally on the mouthpiece and widens relative to the mouthpiece. The flow restrictor defines a maximum flow of the liquid passing through the suction opening from the liquid container. According to the invention, the flow restrictor is arranged outside the mouthpiece, and the suction opening has a greater cross-sectional surface area than the through-opening of the flow restrictor. The teat unit permits a feeding action that is as true to nature as possible, since the mouthpiece can be deformed very considerably, without substantially impairing the flow restriction.

Abstract: The invention provides an elastomeric expandable container 10 having a first opening 12 adapted to enable the introduction of a comestible fluid 16 under pressure to inflate the same, and a second opening 20 provided in a nipple-like projection 22 extending from said container 10 and adapted for nursing babies, said second opening 20 being closed by valve means 24, and said valve means 24 being opened and closed by the natural nursing actions of the baby to enable fluid 16 to flow under pressure of the inflated container 10 through said nipple 22 and out of the opening 20 thereof.

Abstract: A teat for connection to a receiving unit of a drink container has a main body and, adjoining the main body and tapered relative to the main body, a mouthpiece with at least one suction opening and a free end. The teat has a first connector element for connection to the receiving unit, and a second connector element for connection to the receiving unit, and a suction channel. The suction channel extends within the mouthpiece, opens via a first end into the suction opening and is directed via a second end towards the main body. This second end forms the first connector element for a substantially leak-tight connection to the receiving unit. The main body is designed such that it can be turned back towards the free end of the mouthpiece. The teat is designed such that it can be turned back at least a second location. The teat according to the invention can be connected to the feeding bottle in a simple and hygienic manner, is easy to clean and permits a feeding action that is as true to nature as possible.

Abstract: The invention is disclosed as a nipple having a detachable coupler. In a first exemplary form the coupler the coupler is made to receive the nipple and to make a seal at the portion of the nipple abutting the coupler. The seal is made to prevent loss of fluid at the juncture or interface where the nipple meets the coupler. In the first exemplary form, the coupler has threads, which permit the coupler to be screwed onto a bottle having threads around the opening of the bottle. Fluid passes from the bottle into the coupler, through the coupler into the nipple and from the interior of the nipple into the baby's mouth. In a second exemplary form of the coupler, the coupler has an elastic opening to permit the coupler to be stretched over the opening of a fluid container. In the exemplary embodiments the interior of the nipple has a valve, through which all fluid must pass before exiting the nipple and entering the baby's mouth. The valve is made to limit the flow of fluids from the fluid container.

Abstract: A fillable dispensing receptacle having a portion formed for containing a liquid to be dispensed subsequent to dispensing of another liquid. The receptacle has first and second reservoirs in series, with a normally closed, suction-activated, one-direction valve communicating between the first and second reservoirs. The valve is operable upon a predetermined suction in the first reservoir to open to permit expulsion of liquid from the second reservoir into the first reservoir after the liquid in the first reservoir has been consumed. The receptacle can be in the form of a flexible, disposable pouch or a container having an opening at one end for engagement of a removable nipple and having a filling implement for introducing cleansing agent into the second reservoir.

Abstract: An artificial nipple for a nursing bottle having a nipple top part having at its tip a dispensing hole for dispensing a liquid drink; and an artificial nipple body which is continuous to the nipple top part, and whose diameter and wall thickness are greater than those of the nipple top part. The nipple top part has a rib, which prevents contact between an upper side and a lower side of the nipple top part when the nipple top part is compressed flat, at a portion where gums of an infant touch when an upper lip of the infant is in contact with the artificial nipple body or at an internal surface in the vicinity of the portion.

Abstract: A dispensing container fillable with a liquid includes a squeezable reservoir for holding the liquid prior to dispensing, a dispensing outlet for expending the liquid, and a flow control system for regulating the velocity of the liquid exiting the outlet when a squeezing pressure is applied to the liquid-holding reservoir.

Abstract: An artificial baby-feeding nipple has one or more openings formed therein for conveying fluids through the nipple. The nipple is configured and formed of a material which permits changeable flow rates in response to changing suckling conditions.

Abstract: A container assembly system for storing multiple components of a formulation in separate individual container assembly units (10, 30, 30?, 130, 130?, 230, 230?) that can be assembled easily into a single multi-compartment container. The components of a formulation may be stored in each assembly units (10, 30, 30?, 130, 130?, 230, 230?) and then assembled into a multi-compartment container so that the components can be mixed into a formula just prior to use. The assembly units, each containing a component of a formulation, can also be assembled into a single multi-compartment container first and then stored until ready for use.

Abstract: The present invention relates to a drinking apparatus including a vent system that removably connects to a drinking container The vent system is used to create a variety of leak resistant drinking containers, such as toddler drinking cups, baby bottles, and other drinking containers. The vent system includes a substantially rigid disc portion and base portion, the base portion including base air vent channels merging into an integral one-way valve. The vent system provides passage for air from the exterior of the bottle to the interior of the bottle, but it does not allow liquid to exit the bottle via the vent system. An optional anti-bubble tube may be used with the vent system to provide for air entering the inverted container to reach an air pocket formed in the bottom portion of the container.

Abstract: A bottle teat of an elastic material includes a hollow suction nipple and a circumferential mounting edge for fixation to the bottle opening of a drinking bottle. A hollow transition zone is disposed between the mounting edge and suction nipple as well as at least one drinking slot oriented in the longitudinal direction of the suction nipple and extending from the outside up to the inside of the suction nipple in an outwardly bulged external end region of the suction nipple. The bottle teat further includes at least one ventilation valve with a valve slot which is extended from the outer wall of the transition zone up to the inner wall of the transition zone.

Abstract: A baby bottle with an air valve device has a bottle, an air valve device and a cap. The bottle has a mouth. The air valve device is a check valve and has a valve seat mounted on the mouth of the bottle and having at least one through hole, a valve stem and a valve disk. The valve seat has at least one through hole. The valve stem is mounted slidably through the valve seat and has a bottom end. The valve disk is attached to the bottom end of the valve stem and has an air chamber and an annular disk. The air chamber is hollow and has a proximal end attached to the bottom end of the valve stem. The annular disk is formed around and protrudes out from the proximal end of the air chamber and selectively closes the through hole in the valve seat.

Abstract: A bottle of water and powdered infant formula or ready-to-use, pre-mixed, liquid infant formula, juice or other liquid and a ready-to-use sterile feeding nipple device are hermetically sealed within an outer container. Once the outer container is opened, the bottle is removed and the nipple device is then applied to the bottle. The used components may be placed back in the container for reuse or disposal by reapplying an outer lid. In a preferred embodiment, the outer container is a cylindrical can and the bottle is centered within the can by indentations in the wall of the can.

Abstract: A container of sterilized fluoridated water, powdered infant formula, and a ready-to-use sterile feeding nipple are hermetically sealed within an enveloping structure. Once the structure is opened, the water and formula are removed, the formula is dissolved in the water in the bottle, and the nipple is then applied to the bottle. The used components may be placed back in the container for reuse or disposal by reapplying an outer lid. In a preferred embodiment, the enveloping structure is a cylindrical can and the water container is a bottle which is centered within the can by indentations in the wall of the can.

Abstract: A combination handbag and lunch bag comprising: a handbag and a lunch bag each having a front, a rear, two opposing sides, a bottom, a top for joining the handbag and lunch bag portions forming a consolidated bag, a handle, a pair of holding loops or holding rings adapted for engaging the handle for drawing the handle into a continuous closed loop, a closure system enabled for snap-, clasp- or buckle-action fastening adapted for mutual engagement for drawing the combination handbag and lunch bag into a continuous closed loop for improved security and concealment of items therein, and an organizational method and program to provide an integrated closed loop planning, forecasting and control system for individuals synthesizing lifestyle, polish, and weight loss by way of integrated reference card programs, suggestions, and reminders used in combination with designated expandable pockets for predetermined organization of personal items and nutrition items therein.

Abstract: This invention concerns a valve for an underpressure-activated outflow mechanism for a drinking receptacle (2). The valve includes a valve head (34) and a valve seat (44), in which the valve seat (44) is arranged in force-transmitting connection with a membrane (1), whereas the valve head (34) is fixed to the remaining structure via at least one stay (36).

Abstract: A nursery bottle with an automatic shut off mechanism for inhibiting tooth decay. A nipple is attached to a shut off valve, and the shut off valve is attached to a bottle body. The nipple, the bottle body and the shut off valve are in fluid communication with each other. The shut off valve includes a timing mechanism, where the timing mechanism is coupled to a reset actuator that operates the timing mechanism to open the shut off valve for a feeding time period, and where the shut off valve closes to shut off fluid flow into the nipple after the feeding time period expires.

Abstract: A dual chamber nursery bottle including upper and lower cylindrical shaped chambers disposed on a common axis one above the other and separated from one another by a rotatable valve assembly that is disposed on the common axis and in contact with the upper and lower chambers.

Abstract: A dual chamber nursing bottle includes a first chamber, a second chamber, a closure which defines the second chamber, and a valve member which communicates between the first and second chambers to control the flow of fluid from the first chamber to the second chamber and then feed an infant using the nursing nipple which is mounted on the first chamber.

Abstract: A nipple for a baby bottle includes both inner and outer separable members. The inner member defines a valve passage that can be selectively obstructed by a flap of the outer member. The outer and inner members have respective flexible membranes that define a holding chamber having the valve passage as an inlet and an aperture at the tip of the outer member as an outlet. The flap inhibits flow from the holding chamber through the valve passage when the outer member is compressed, and deflects away from the valve passage to allow the holding chamber to receive a fluid through the valve passage when the outer member is released.

Abstract: An infant cup includes a cup body 12, a cover 16, a flexible mouthpiece 24 and a valve element 26. The valve element 26 includes a sealing face 70 which closes an orifice 44 in the mouthpiece in a relaxed position. The valve element includes an angled face cooperating with an internal angled face of the mouthpiece such that when pressure is applied the valve element moves downwardly, opening the mouthpiece orifice 44. The valve element is resiliently biased upwards such that when relaxed it springs back to close the mouthpiece orifice 44 once again, and is biased upwards in the closed position.

Abstract: An easy to use, squeezable device with a soft, flexible tube for feeding liquid nutrition to a person, includes: a) a squeezable bottle portion for holding the ingestible liquid therewithin, the bottle portion comprising an opening at its top surrounded by a neck; and b) a cap assembly comprising: flexible fluid-flow tubing, a spout or nipple assembly, and a threaded collar, an upper portion of the spout assembly being insertable through a central aperture in the collar, the flexible tubing having a first end in fluid communication with the bottle portion and a second end insertable in the patient's mouth, the flexible tubing extending through or encircling a central aperture in the spout assembly. The spout assembly preferably includes a leakproof flange, and a valve assembly for controlling flow. The device is particularly intended for use where suction such as nipples, straws, or sip cups are contraindicated after craniofacial surgery.

Abstract: A dual chamber infant bottle for minimizing contamination of an entire batch of baby formula or milk includes an upper feeding reservoir with a conventional baby bottle nipple coupled to the top end thereof. The lower end of the feeding reservoir includes a base portion having an opening therethrough for receiving fluid from a storage reservoir. A valve assembly is removably disposed between the storage reservoir and feeding reservoir for allowing selective flow therebetween.

Abstract: An air venting apparatus for a milk bottle having a soft teat for a baby to suck, a bottle for containing milk, and a fixing frame for fixing the soft teat to the bottle without leakage. In the air venting apparatus, an upper plate is disposed between the top of a body of the bottle and the base of the teat and has at least one air inlet groove for guiding external air into the bottle body. A lower plate is combined with the upper plate and has at least one thorough hole and an air control valve to control the amount of the introduced air and discharges a gas generated from high-temperature milk outside the bottle body. An annular connection member is combined with the lower plate and provides the amount-controlled air into the bottle body.

Abstract: An improved no-spill cup construction and valve assembly which provides an extremely secure seal against accidental liquid flow from the cup spout. The act of sucking at the cup spout creates negative pressure or a partial vacuum against a valve near the spout, causing the valve to invert which unblocks an opening in the valve. When the opening is unblocked, liquid can flow freely through the valve and spout. When not in use, the valve sits in a resting, closed position, with the valve pressed against a center seal-off, sealing off the opening in the valve assembly. The closed position provides an extremely secure seal against fluid leakage, such that inadvertent spills or even deliberate attempts to force liquid outside of the cup, such as by turning the cup upside down, or shaking the cup, are ineffective. The cup assembly further allows liquid flow to be regulated between regular or maximum flow and minimal flow levels or rates by rotating the position of the valve assembly in the cover of the cup.