Teat unit

A nipple apparatus for a feeding bottle having a pressure regulating feature, comprising:

• a flexible teat having an internal conduit through which liquid passes from a supply to an exit port;
• a securing device attaching said teat to a container, said securing device having first and second securing parts, said first securing part being located toward a container interior relative to said second securing part;
• a valve element provided on said first securing part, said valve element having a first valve part which is movable relative to said first securing part, with an orifice formed in said first valve part communicating with the container interior, said second securing part having a portion against which said first valve part engages to thereby close said orifice in a first state;
• a channel for ambient air to enter between said first and second securing parts and pass through said orifice into the container interior in a second state, said channel being closed to the container interior in said first state, the container interior otherwise being sealed against entry of air by said securing device;
• said first valve part moving away from said portion of said second securing part and toward the container interior upon removal of liquid through said teat internal conduit to thereby open said channel for air to pass, the removal of liquid creating an underpressure in the container interior in said second state.

A teat unit including 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, and the air valve having at least a first valve part and a second valve part, wherein

• a) the first valve part is arranged in the first securing part, and the second valve part is arranged in the second securing part;
• or
• b) the air valve opens or closes with respect to the second securing part and the first valve part and the second valve part are arranged in the first securing part;
• and
• wherein the first securing part is a base part and the second securing part is a receiving head, wherein the receiving head and the base part can be connected to each other via a releasable plug connection, wherein the receiving head for this purpose has plug elements that can be plugged into the base part and that are designed to secure the assembled base part and receiving head on the liquid container.

A teat unit including 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, and the air valve having at least a first valve part and a second valve part, wherein

• a) the first valve part is arranged in the first securing part, and the second valve part is arranged in the second securing part;
• or
• b) the air valve opens or closes with respect to the second securing part and the first valve part and the second valve part are arranged in the first securing part;
• and
• wherein the first securing part has an annular main body and a truncated cone formed integrally in the annular main body, wherein a liquid through-flow channel extends along a longitudinal center axis of the truncated cone, and wherein the diaphragm of the air valve is arranged in a circumferential surface of the truncated cone.