A feeding assembly includes a container having an open top and defining a liquid chamber therein for holding a liquid. A collar assembly defines a closure for the open top of the container upon assembly with the container. A vent assembly is positionable at least in part on the open top of the container and is configured to facilitate venting of the container to atmosphere as liquid exits the feeding assembly during feeding. The vent assembly being disposed intermediate the container and the nipple, has at least one opening through which liquid is able to flow from the container to the nipple during feeding. The vent assembly has a siphon member extending longitudinally of the feeding assembly and generally away from the nipple and is configured to facilitate the flow of liquid from the nipple back into the container when feeding is ceased and the container is oriented generally upright.

A feeding teat for use with a bottle that contains a fluid includes a nipple defining an orifice at a terminal end and an interior profile shaped by multiple intersecting reverse curves that generally decreases an interior diameter of the nipple toward the orifice for directing a flow of the fluid into the orifice, a flange configured to be releasably coupled to the bottle such that the fluid can flow from the bottle into the feeding teat, an intermediate portion integrally connecting the nipple to the flange, and a pressure relief valve extending laterally from the intermediate portion and configured to admit air into an interior region formed by the feeding teat and the bottle.

In one aspect of the invention features nursing bottle. The nursing bottle includes a container for holding a liquid and having a rim defining an open end and a nipple assembly secured to the container at the open end. The nipple assembly includes a flexible nipple extending away from the container and defining an interior nipple volume, a vent bulb disposed within the interior nipple volume and defining an interior bulb volume, a tube extending into the container to a distal end disposed in a closed end of the container, and a vent manifold. The vent manifold defines a first aperture providing fluid communication between the container and the interior nipple volume, a second aperture providing fluid communication between the tube and the interior bulb volume, and a vent conduit providing fluid communication between the interior bulb volume and atmosphere.

In one aspect of the invention features nursing bottle. The nursing bottle includes a container for holding a liquid and having a rim defining an open end and a nipple assembly secured to the container at the open end. The nipple assembly includes a flexible nipple extending away from the container and defining an interior nipple volume, a vent bulb disposed within the interior nipple volume and defining an interior bulb volume, a tube extending into the container to a distal end disposed in a closed end of the container, and a vent manifold. The vent manifold defines a first aperture providing fluid communication between the container and the interior nipple volume, a second aperture providing fluid communication between the tube and the interior bulb volume, and a vent conduit providing fluid communication between the interior bulb volume and atmosphere.

A pacifier structure is mounted on a nursing bottle containing a rotatable cap, a body, and a filtration member. The rotatable cap includes a peripheral groove, the body includes a suction portion and a surround plane, the surround plane has an air valve, the surround plane connects with the peripheral groove to produce an air chamber, and a trench is defined between the body and the peripheral groove. The filtration member includes a ring portion, at least one connection tab, and a mesh portion. The ring portion has an arcuate recess, a diameter defined by the at least one connection tab is more than an inner diameter of the body, the mesh portion has a large section adjacent to the ring portion and a small section away from the ring portion. The large section is more than the small section, and the mesh portion has multiple orifices.

A pacifier structure is mounted on a nursing bottle containing a rotatable cap, a body, and a filtration member. The rotatable cap includes a peripheral groove, the body includes a suction portion and a surround plane, the surround plane has an air valve, the surround plane connects with the peripheral groove to produce an air chamber, and a trench is defined between the body and the peripheral groove. The filtration member includes a ring portion, at least one connection tab, and a mesh portion. The ring portion has an arcuate recess, a diameter defined by the at least one connection tab is more than an inner diameter of the body, the mesh portion has a large section adjacent to the ring portion and a small section away from the ring portion. The large section is more than the small section, and the mesh portion has multiple orifices.

An insert that has a one-way valve that allows for one-way flow of liquid in response to reduced pressure. The insert is configured to be installed in a baby bottle to form two chambersa reservoir chamber and a dispensing chamber. The insert also is provided with a valve failure mechanism which allows a user to force the one-way valve open in the absence of reduced pressure, which allows a user to prime the dispensing chamber (the nipple) prior to beginning feeding.

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.

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.

A vent prevents a vacuum from forming within an inverted container of liquid when the liquid is dispensed. The vent is a singular vent, formed of a vent tube, the vent tube removably secures with a nipple, and more particularly its radially extending flange, with the nipple flange having a passage therethrough to allow for venting by way of the vent tube from the interior of the container to the location between the container neck and its collar, to provide for the entrance of atmospheric air into the interior of the container during usage to prevent the generation of any vacuum therein. The container may be a nursing bottle, with its collar and nipple applied to the top, and the vent tube being secured to the bottom of the nipple flange for projecting downwardly within the bottle to perform its venting function. The bottle may be formed of fully or partially transparent material, tinted to one or more coloration, while the vent tube may be tinted to one or more different coloration, and when they are assembled, exhibits three or more colorations for the vent tube when viewed from exteriorly of the tinted nursing bottle during its application.