A teat including at least a shaft and a nipple, wherein structured surface areas are provided at least in a partial region thereof, and the structured surface areas are formed by at least one rough surface zone having a surface roughness of 100 m at the most, or 50 m at the most.

A teat including at least a shaft and a nipple, wherein structured surface areas are provided at least in a partial region thereof, and the structured surface areas are formed by at least one rough surface zone having a surface roughness of 100 m at the most, or 50 m at the most.

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.

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.

A mason jar baby bottle lid includes a metal threaded mason jar collar and a bottle nipple formed of a flexible and non-toxic material. The bottle nipple has a domed body portion having a nipple projecting from an upper end of the domed body, a flange including an upward-projecting lip formed on the lower end of the domed body, and an annular indentation formed between the flange and the domed body of the bottle nipple and including an overhang surface. A height of the upwardly protruding lip of the flange is such that when the bottle nipple is engaged with the mason jar collar, the overhang surface is adjacent the substantially flat upper surface of the collar.

A mason jar baby bottle lid includes a metal threaded mason jar collar and a bottle nipple formed of a flexible and non-toxic material. The bottle nipple has a domed body portion having a nipple projecting from an upper end of the domed body, a flange including an upward-projecting lip formed on the lower end of the domed body, and an annular indentation formed between the flange and the domed body of the bottle nipple and including an overhang surface. A height of the upwardly protruding lip of the flange is such that when the bottle nipple is engaged with the mason jar collar, the overhang surface is adjacent the substantially flat upper surface of the collar.

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.

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.

The present application relates to a mouthpiece (20) for an infant feeding vessel (10). The vessel (10) has a mounting collar (60) configured to be received between a receptacle (30) for holding fluid and a connector (40) for mounting the mouthpiece (20) to the receptacle (30) when assembled. The vessel (10) also has an air valve (70) in the mounting collar (60) to allow the flow of air into the receptacle (30) when the mouthpiece (20) is mounted to the receptacle (30). The air valve is biased towards an open condition in its un-assembled state. At least part of the mounting collar (60) is resilient and is configured to be received between the receptacle (30) and the connector (40) when assembled. The at least part of the mounting collar (60) that is resilient is deformable to act on the air valve (70) to tend the air valve (70) towards a closed or further closed condition when the at least part of the mounting collar (60) that is resilient is compressed between the receptacle (30) and the connector (40) and in turn urged to deform in an inwardly radial direction of the mounting collar.

The present application relates to a mouthpiece (20) for an infant feeding vessel (10). The vessel (10) has a mounting collar (60) configured to be received between a receptacle (30) for holding fluid and a connector (40) for mounting the mouthpiece (20) to the receptacle (30) when assembled. The vessel (10) also has an air valve (70) in the mounting collar (60) to allow the flow of air into the receptacle (30) when the mouthpiece (20) is mounted to the receptacle (30). The air valve is biased towards an open condition in its un-assembled state. At least part of the mounting collar (60) is resilient and is configured to be received between the receptacle (30) and the connector (40) when assembled. The at least part of the mounting collar (60) that is resilient is deformable to act on the air valve (70) to tend the air valve (70) towards a closed or further closed condition when the at least part of the mounting collar (60) that is resilient is compressed between the receptacle (30) and the connector (40) and in turn urged to deform in an inwardly radial direction of the mounting collar.